Add support for additional unit test library doctest.

2 files changed, 5672 insertions, 0 deletions

diff --git a/src/test/doctest.h b/src/test/doctest.h
new file mode 100644
index 000000000..e6567a7ec
--- /dev/null
+++ b/src/test/doctest.h
@@ -0,0 +1,5646 @@
+// ======================================================================
+// == DO NOT MODIFY THIS FILE BY HAND - IT IS AUTO GENERATED BY CMAKE! ==
+// ======================================================================
+//
+// doctest.h - the lightest feature-rich C++ single-header testing framework for unit tests and TDD
+//
+// Copyright (c) 2016-2017 Viktor Kirilov
+//
+// Distributed under the MIT Software License
+// See accompanying file LICENSE.txt or copy at
+// https://opensource.org/licenses/MIT
+//
+// The documentation can be found at the library's page:
+// https://github.com/onqtam/doctest/blob/master/doc/markdown/readme.md
+//
+// =================================================================================================
+// =================================================================================================
+// =================================================================================================
+//
+// The library is heavily influenced by Catch - https://github.com/philsquared/Catch
+// which uses the Boost Software License - Version 1.0
+// see here - https://github.com/philsquared/Catch/blob/master/LICENSE_1_0.txt
+//
+// The concept of subcases (sections in Catch) and expression decomposition are from there.
+// Some parts of the code are taken directly:
+// - stringification - the detection of "ostream& operator<<(ostream&, const T&)" and StringMaker<>
+// - the Approx() helper class for floating point comparison
+// - colors in the console
+// - breaking into a debugger
+// - signal / SEH handling
+// - timer
+//
+// The expression decomposing templates are taken from lest - https://github.com/martinmoene/lest
+// which uses the Boost Software License - Version 1.0
+// see here - https://github.com/martinmoene/lest/blob/master/LICENSE_1_0.txt
+//
+// The type list and the foreach algorithm on it for C++98 are taken from Loki
+// - http://loki-lib.sourceforge.net/
+// - https://en.wikipedia.org/wiki/Loki_%28C%2B%2B%29
+// - https://github.com/snaewe/loki-lib
+// which uses the MIT Software License
+//
+// =================================================================================================
+// =================================================================================================
+// =================================================================================================
+
+// Suppress this globally (without push/pop) - there is no way to silence it in the
+// expression decomposition macros _Pragma() in macros doesn't work for the c++ front-end of g++
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55578
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69543
+// Also the warning is completely worthless nowadays - http://stackoverflow.com/questions/14016993
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic ignored "-Waggregate-return"
+#endif
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-pragmas"
+#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+#pragma clang diagnostic ignored "-Wweak-vtables"
+#pragma clang diagnostic ignored "-Wpadded"
+#pragma clang diagnostic ignored "-Wdeprecated"
+#pragma clang diagnostic ignored "-Wmissing-prototypes"
+#pragma clang diagnostic ignored "-Wunused-local-typedef"
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
+#pragma clang diagnostic ignored "-Wc++11-long-long"
+#endif // __clang__
+
+#if defined(__GNUC__) && !defined(__clang__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic push
+#endif // > gcc 4.6
+#pragma GCC diagnostic ignored "-Wunknown-pragmas"
+#pragma GCC diagnostic ignored "-Weffc++"
+#pragma GCC diagnostic ignored "-Wstrict-overflow"
+#pragma GCC diagnostic ignored "-Wstrict-aliasing"
+#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
+#pragma GCC diagnostic ignored "-Wmissing-declarations"
+#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
+#pragma GCC diagnostic ignored "-Winline"
+#pragma GCC diagnostic ignored "-Wlong-long"
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
+#endif // > gcc 4.6
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 7)
+#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
+#endif // > gcc 4.7
+#if __GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ > 3)
+#pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif // > gcc 5.3
+#endif // __GNUC__
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4996) // The compiler encountered a deprecated declaration
+#pragma warning(disable : 4706) // assignment within conditional expression
+#pragma warning(disable : 4512) // 'class' : assignment operator could not be generated
+#pragma warning(disable : 4127) // conditional expression is constant
+#endif                          // _MSC_VER
+
+#ifndef DOCTEST_LIBRARY_INCLUDED
+#define DOCTEST_LIBRARY_INCLUDED
+
+#define DOCTEST_VERSION_MAJOR 1
+#define DOCTEST_VERSION_MINOR 2
+#define DOCTEST_VERSION_PATCH 0
+#define DOCTEST_VERSION_STR "1.2.0"
+
+#define DOCTEST_VERSION                                                                            \
+    (DOCTEST_VERSION_MAJOR * 10000 + DOCTEST_VERSION_MINOR * 100 + DOCTEST_VERSION_PATCH)
+
+// =================================================================================================
+// == FEATURE DETECTION ============================================================================
+// =================================================================================================
+
+#if __cplusplus >= 201103L
+#ifndef DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#define DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#endif // DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#ifndef DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#define DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#endif // DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#ifndef DOCTEST_CONFIG_WITH_NULLPTR
+#define DOCTEST_CONFIG_WITH_NULLPTR
+#endif // DOCTEST_CONFIG_WITH_NULLPTR
+#ifndef DOCTEST_CONFIG_WITH_LONG_LONG
+#define DOCTEST_CONFIG_WITH_LONG_LONG
+#endif // DOCTEST_CONFIG_WITH_LONG_LONG
+#ifndef DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#define DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#endif // DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#ifndef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#endif // __cplusplus >= 201103L
+
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif // __has_feature
+
+// MSVC C++11 feature support table: https://msdn.microsoft.com/en-us/library/hh567368.aspx
+// GCC C++11 feature support table: https://gcc.gnu.org/projects/cxx-status.html
+// MSVC version table:
+// MSVC++ 15.0 _MSC_VER == 1910 (Visual Studio 2017)
+// MSVC++ 14.0 _MSC_VER == 1900 (Visual Studio 2015)
+// MSVC++ 12.0 _MSC_VER == 1800 (Visual Studio 2013)
+// MSVC++ 11.0 _MSC_VER == 1700 (Visual Studio 2012)
+// MSVC++ 10.0 _MSC_VER == 1600 (Visual Studio 2010)
+// MSVC++ 9.0  _MSC_VER == 1500 (Visual Studio 2008)
+// MSVC++ 8.0  _MSC_VER == 1400 (Visual Studio 2005)
+
+// deleted functions
+
+#ifndef DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#if defined(_MSC_VER) && (_MSC_VER >= 1800)
+#define DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#endif // _MSC_VER
+#if defined(__clang__) && __has_feature(cxx_deleted_functions)
+#define DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#endif // __clang__
+#if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 4) || __GNUC__ > 4) &&               \
+        defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#endif // __GNUC__
+#endif // DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+
+#if defined(DOCTEST_CONFIG_NO_DELETED_FUNCTIONS) && defined(DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS)
+#undef DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS
+#endif // DOCTEST_CONFIG_NO_DELETED_FUNCTIONS
+
+// rvalue references
+
+#ifndef DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#if defined(_MSC_VER) && (_MSC_VER >= 1600)
+#define DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#endif // _MSC_VER
+#if defined(__clang__) && __has_feature(cxx_rvalue_references)
+#define DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#endif // __clang__
+#if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4) &&               \
+        defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#endif // __GNUC__
+#endif // DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+
+#if defined(DOCTEST_CONFIG_NO_RVALUE_REFERENCES) && defined(DOCTEST_CONFIG_WITH_RVALUE_REFERENCES)
+#undef DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+#endif // DOCTEST_CONFIG_NO_RVALUE_REFERENCES
+
+// nullptr
+
+#ifndef DOCTEST_CONFIG_WITH_NULLPTR
+#if defined(__clang__) && __has_feature(cxx_nullptr)
+#define DOCTEST_CONFIG_WITH_NULLPTR
+#endif // __clang__
+#if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ > 4) &&               \
+        defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define DOCTEST_CONFIG_WITH_NULLPTR
+#endif                                      // __GNUC__
+#if defined(_MSC_VER) && (_MSC_VER >= 1600) // MSVC 2010
+#define DOCTEST_CONFIG_WITH_NULLPTR
+#endif // _MSC_VER
+#endif // DOCTEST_CONFIG_WITH_NULLPTR
+
+#if defined(DOCTEST_CONFIG_NO_NULLPTR) && defined(DOCTEST_CONFIG_WITH_NULLPTR)
+#undef DOCTEST_CONFIG_WITH_NULLPTR
+#endif // DOCTEST_CONFIG_NO_NULLPTR
+
+// variadic macros
+
+#ifndef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#if defined(_MSC_VER) && _MSC_VER > 1400 && !defined(__EDGE__)
+#define DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#endif // _MSC_VER
+#if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || __GNUC__ > 4) &&               \
+        defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#endif // __GNUC__ and clang
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#if defined(DOCTEST_CONFIG_NO_VARIADIC_MACROS) && defined(DOCTEST_CONFIG_WITH_VARIADIC_MACROS)
+#undef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#endif // DOCTEST_CONFIG_NO_VARIADIC_MACROS
+
+// long long
+
+#ifndef DOCTEST_CONFIG_WITH_LONG_LONG
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
+#define DOCTEST_CONFIG_WITH_LONG_LONG
+#endif // _MSC_VER
+#if(defined(__clang__) ||                                                                          \
+    (defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || __GNUC__ > 4))) &&            \
+        defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define DOCTEST_CONFIG_WITH_LONG_LONG
+#endif // __GNUC__ and clang
+#endif // DOCTEST_CONFIG_WITH_LONG_LONG
+
+#if defined(DOCTEST_CONFIG_NO_LONG_LONG) && defined(DOCTEST_CONFIG_WITH_LONG_LONG)
+#undef DOCTEST_CONFIG_WITH_LONG_LONG
+#endif // DOCTEST_CONFIG_NO_LONG_LONG
+
+// static_assert
+
+#ifndef DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#if defined(__clang__) && __has_feature(cxx_static_assert)
+#define DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#endif // __clang__
+#if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4) &&               \
+        defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#endif                                      // __GNUC__
+#if defined(_MSC_VER) && (_MSC_VER >= 1600) // MSVC 2010
+#define DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#endif // _MSC_VER
+#endif // DOCTEST_CONFIG_WITH_STATIC_ASSERT
+
+#if defined(DOCTEST_CONFIG_NO_STATIC_ASSERT) && defined(DOCTEST_CONFIG_WITH_STATIC_ASSERT)
+#undef DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#endif // DOCTEST_CONFIG_NO_STATIC_ASSERT
+
+// other stuff...
+
+#if defined(DOCTEST_CONFIG_WITH_RVALUE_REFERENCES) || defined(DOCTEST_CONFIG_WITH_LONG_LONG) ||    \
+        defined(DOCTEST_CONFIG_WITH_DELETED_FUNCTIONS) || defined(DOCTEST_CONFIG_WITH_NULLPTR) ||  \
+        defined(DOCTEST_CONFIG_WITH_VARIADIC_MACROS) || defined(DOCTEST_CONFIG_WITH_STATIC_ASSERT)
+#define DOCTEST_NO_CPP11_COMPAT
+#endif // c++11 stuff
+
+#if defined(__clang__) && defined(DOCTEST_NO_CPP11_COMPAT)
+#pragma clang diagnostic ignored "-Wc++98-compat"
+#pragma clang diagnostic ignored "-Wc++98-compat-pedantic"
+#endif // __clang__ && DOCTEST_NO_CPP11_COMPAT
+
+#if defined(_MSC_VER) && !defined(DOCTEST_CONFIG_WINDOWS_SEH)
+#define DOCTEST_CONFIG_WINDOWS_SEH
+#endif // _MSC_VER
+#if defined(DOCTEST_CONFIG_NO_WINDOWS_SEH) && defined(DOCTEST_CONFIG_WINDOWS_SEH)
+#undef DOCTEST_CONFIG_WINDOWS_SEH
+#endif // DOCTEST_CONFIG_NO_WINDOWS_SEH
+
+#if !defined(_WIN32) && !defined(__QNX__) && !defined(DOCTEST_CONFIG_POSIX_SIGNALS)
+#define DOCTEST_CONFIG_POSIX_SIGNALS
+#endif // _WIN32
+#if defined(DOCTEST_CONFIG_NO_POSIX_SIGNALS) && defined(DOCTEST_CONFIG_POSIX_SIGNALS)
+#undef DOCTEST_CONFIG_POSIX_SIGNALS
+#endif // DOCTEST_CONFIG_NO_POSIX_SIGNALS
+
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+#if defined(__GNUC__) && !defined(__EXCEPTIONS)
+#define DOCTEST_CONFIG_NO_EXCEPTIONS
+#endif // clang and gcc
+// in MSVC _HAS_EXCEPTIONS is defined in a header instead of as a project define
+// so we can't do the automatic detection for MSVC without including some header
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+
+#ifdef DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+#define DOCTEST_CONFIG_NO_EXCEPTIONS
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS
+
+#if defined(DOCTEST_CONFIG_NO_EXCEPTIONS) && !defined(DOCTEST_CONFIG_NO_TRY_CATCH_IN_ASSERTS)
+#define DOCTEST_CONFIG_NO_TRY_CATCH_IN_ASSERTS
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS && !DOCTEST_CONFIG_NO_TRY_CATCH_IN_ASSERTS
+
+#if defined(DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN) && !defined(DOCTEST_CONFIG_IMPLEMENT)
+#define DOCTEST_CONFIG_IMPLEMENT
+#endif // DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+
+#if defined _WIN32 || defined __CYGWIN__
+#ifdef __GNUC__
+#define DOCTEST_SYMBOL_EXPORT __attribute__((dllexport))
+#define DOCTEST_SYMBOL_IMPORT __attribute__((dllimport))
+#else // __GNUC__
+#define DOCTEST_SYMBOL_EXPORT __declspec(dllexport)
+#define DOCTEST_SYMBOL_IMPORT __declspec(dllimport)
+#endif // __GNUC__
+#else  // _WIN32
+#define DOCTEST_SYMBOL_EXPORT __attribute__((visibility("default")))
+#define DOCTEST_SYMBOL_IMPORT
+#endif // _WIN32
+
+#ifdef DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+#ifdef DOCTEST_CONFIG_IMPLEMENT
+#define DOCTEST_INTERFACE DOCTEST_SYMBOL_EXPORT
+#else // DOCTEST_CONFIG_IMPLEMENT
+#define DOCTEST_INTERFACE DOCTEST_SYMBOL_IMPORT
+#endif // DOCTEST_CONFIG_IMPLEMENT
+#else  // DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+#define DOCTEST_INTERFACE
+#endif // DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
+
+#ifdef _MSC_VER
+#define DOCTEST_NOINLINE __declspec(noinline)
+#else // _MSC_VER
+#define DOCTEST_NOINLINE __attribute__((noinline))
+#endif // _MSC_VER
+
+#ifndef DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK
+#define DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK 5
+#endif // DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK
+
+// =================================================================================================
+// == FEATURE DETECTION END ========================================================================
+// =================================================================================================
+
+// internal macros for string concatenation and anonymous variable name generation
+#define DOCTEST_CAT_IMPL(s1, s2) s1##s2
+#define DOCTEST_CAT(s1, s2) DOCTEST_CAT_IMPL(s1, s2)
+#ifdef __COUNTER__ // not standard and may be missing for some compilers
+#define DOCTEST_ANONYMOUS(x) DOCTEST_CAT(x, __COUNTER__)
+#else // __COUNTER__
+#define DOCTEST_ANONYMOUS(x) DOCTEST_CAT(x, __LINE__)
+#endif // __COUNTER__
+
+// macro for making a string out of an identifier
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TOSTR_IMPL(...) #__VA_ARGS__
+#define DOCTEST_TOSTR(...) DOCTEST_TOSTR_IMPL(__VA_ARGS__)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TOSTR_IMPL(x) #x
+#define DOCTEST_TOSTR(x) DOCTEST_TOSTR_IMPL(x)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+// for concatenating literals and making the result a string
+#define DOCTEST_STR_CONCAT_TOSTR(s1, s2) DOCTEST_TOSTR(s1) DOCTEST_TOSTR(s2)
+
+// counts the number of elements in a C string
+#define DOCTEST_COUNTOF(x) (sizeof(x) / sizeof(x[0]))
+
+#ifndef DOCTEST_CONFIG_ASSERTION_PARAMETERS_BY_VALUE
+#define DOCTEST_REF_WRAP(x) x&
+#else // DOCTEST_CONFIG_ASSERTION_PARAMETERS_BY_VALUE
+#define DOCTEST_REF_WRAP(x) x
+#endif // DOCTEST_CONFIG_ASSERTION_PARAMETERS_BY_VALUE
+
+// not using __APPLE__ because... this is how Catch does it
+#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
+#define DOCTEST_PLATFORM_MAC
+#elif defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
+#define DOCTEST_PLATFORM_IPHONE
+#elif defined(_WIN32) || defined(_MSC_VER)
+#define DOCTEST_PLATFORM_WINDOWS
+#else
+#define DOCTEST_PLATFORM_LINUX
+#endif
+
+#if defined(__clang__)
+#define DOCTEST_GLOBAL_NO_WARNINGS(var)                                                            \
+    _Pragma("clang diagnostic push")                                                               \
+            _Pragma("clang diagnostic ignored \"-Wglobal-constructors\"") static int var
+#define DOCTEST_GLOBAL_NO_WARNINGS_END() _Pragma("clang diagnostic pop")
+#elif defined(__GNUC__)
+#define DOCTEST_GLOBAL_NO_WARNINGS(var) static int var __attribute__((unused))
+#define DOCTEST_GLOBAL_NO_WARNINGS_END()
+#else // MSVC / other
+#define DOCTEST_GLOBAL_NO_WARNINGS(var) static int var
+#define DOCTEST_GLOBAL_NO_WARNINGS_END()
+#endif // MSVC / other
+
+// should probably take a look at https://github.com/scottt/debugbreak
+#ifdef DOCTEST_PLATFORM_MAC
+#define DOCTEST_BREAK_INTO_DEBUGGER() __asm__("int $3\n" : :)
+#elif defined(_MSC_VER)
+#define DOCTEST_BREAK_INTO_DEBUGGER() __debugbreak()
+#elif defined(__MINGW32__)
+extern "C" __declspec(dllimport) void __stdcall DebugBreak();
+#define DOCTEST_BREAK_INTO_DEBUGGER() ::DebugBreak()
+#else // linux
+#define DOCTEST_BREAK_INTO_DEBUGGER() ((void)0)
+#endif // linux
+
+#ifdef __clang__
+// to detect if libc++ is being used with clang (the _LIBCPP_VERSION identifier)
+#include <ciso646>
+#endif // __clang__
+
+#ifdef _LIBCPP_VERSION
+// not forward declaring ostream for libc++ because I had some problems (inline namespaces vs c++98)
+// so the <iosfwd> header is used - also it is very light and doesn't drag a ton of stuff
+#include <iosfwd>
+#else // _LIBCPP_VERSION
+#ifndef DOCTEST_CONFIG_USE_IOSFWD
+namespace std
+{
+template <class charT>
+struct char_traits;
+template <>
+struct char_traits<char>;
+template <class charT, class traits>
+class basic_ostream;
+typedef basic_ostream<char, char_traits<char> > ostream;
+} // namespace std
+#else // DOCTEST_CONFIG_USE_IOSFWD
+#include <iosfwd>
+#endif // DOCTEST_CONFIG_USE_IOSFWD
+#endif // _LIBCPP_VERSION
+
+// static assert macro - because of the c++98 support requires that the message is an
+// identifier (no spaces and not a C string) - example without quotes: I_am_a_message
+// taken from here: http://stackoverflow.com/a/1980156/3162383
+#ifdef DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#define DOCTEST_STATIC_ASSERT(expression, message) static_assert(expression, #message)
+#else // DOCTEST_CONFIG_WITH_STATIC_ASSERT
+#define DOCTEST_STATIC_ASSERT(expression, message)                                                 \
+    struct DOCTEST_CAT(__static_assertion_at_line_, __LINE__)                                      \
+    {                                                                                              \
+        doctest::detail::static_assert_impl::StaticAssertion<static_cast<bool>((expression))>      \
+                DOCTEST_CAT(DOCTEST_CAT(DOCTEST_CAT(STATIC_ASSERTION_FAILED_AT_LINE_, __LINE__),   \
+                                        _),                                                        \
+                            message);                                                              \
+    };                                                                                             \
+    typedef doctest::detail::static_assert_impl::StaticAssertionTest<static_cast<int>(             \
+            sizeof(DOCTEST_CAT(__static_assertion_at_line_, __LINE__)))>                           \
+            DOCTEST_CAT(__static_assertion_test_at_line_, __LINE__)
+#endif // DOCTEST_CONFIG_WITH_STATIC_ASSERT
+
+#ifdef DOCTEST_CONFIG_WITH_NULLPTR
+#ifdef _LIBCPP_VERSION
+#include <cstddef>
+#else  // _LIBCPP_VERSION
+namespace std
+{ typedef decltype(nullptr) nullptr_t; }
+#endif // _LIBCPP_VERSION
+#endif // DOCTEST_CONFIG_WITH_NULLPTR
+
+#ifndef DOCTEST_CONFIG_DISABLE
+namespace doctest
+{
+namespace detail
+{
+    struct TestSuite
+    {
+        const char* m_test_suite;
+        const char* m_description;
+        bool        m_skip;
+        bool        m_may_fail;
+        bool        m_should_fail;
+        int         m_expected_failures;
+        double      m_timeout;
+
+        TestSuite& operator*(const char* in) {
+            m_test_suite = in;
+            // clear state
+            m_description       = 0;
+            m_skip              = false;
+            m_may_fail          = false;
+            m_should_fail       = false;
+            m_expected_failures = 0;
+            m_timeout           = 0;
+            return *this;
+        }
+
+        template <typename T>
+        TestSuite& operator*(const T& in) {
+            in.fill(*this);
+            return *this;
+        }
+    };
+} // namespace detail
+} // namespace doctest
+
+// in a separate namespace outside of doctest because the DOCTEST_TEST_SUITE macro
+// introduces an anonymous namespace in which getCurrentTestSuite gets overridden
+namespace doctest_detail_test_suite_ns
+{
+DOCTEST_INTERFACE doctest::detail::TestSuite& getCurrentTestSuite();
+} // namespace doctest_detail_test_suite_ns
+
+#endif // DOCTEST_CONFIG_DISABLE
+
+namespace doctest
+{
+// A 24 byte string class (can be as small as 17 for x64 and 13 for x86) that can hold strings with length
+// of up to 23 chars on the stack before going on the heap - the last byte of the buffer is used for:
+// - "is small" bit - the highest bit - if "0" then it is small - otherwise its "1" (128)
+// - if small - capacity left before going on the heap - using the lowest 5 bits
+// - if small - 2 bits are left unused - the second and third highest ones
+// - if small - acts as a null terminator if strlen() is 23 (24 including the null terminator)
+//              and the "is small" bit remains "0" ("as well as the capacity left") so its OK
+// Idea taken from this lecture about the string implementation of facebook/folly - fbstring
+// https://www.youtube.com/watch?v=kPR8h4-qZdk
+// TODO:
+// - optimizations - like not deleting memory unnecessarily in operator= and etc.
+// - resize/reserve/clear
+// - substr
+// - replace
+// - back/front
+// - iterator stuff
+// - find & friends
+// - push_back/pop_back
+// - assign/insert/erase
+// - relational operators as free functions - taking const char* as one of the params
+class DOCTEST_INTERFACE String
+{
+    static const unsigned len  = 24;      //!OCLINT avoid private static members
+    static const unsigned last = len - 1; //!OCLINT avoid private static members
+
+    struct view // len should be more than sizeof(view) - because of the final byte for flags
+    {
+        char*    ptr;
+        unsigned size;
+        unsigned capacity;
+    };
+
+    union
+    {
+        char buf[len];
+        view data;
+    };
+
+    void copy(const String& other);
+
+    void setOnHeap() { *reinterpret_cast<unsigned char*>(&buf[last]) = 128; }
+    void setLast(unsigned in = last) { buf[last] = char(in); }
+
+public:
+    String() {
+        buf[0] = '\0';
+        setLast();
+    }
+
+    String(const char* in);
+
+    String(const String& other) { copy(other); }
+
+    ~String() {
+        if(!isOnStack())
+            delete[] data.ptr;
+    }
+
+    // GCC 4.9/5/6 report Wstrict-overflow when optimizations are ON and it got inlined in the vector class somewhere...
+    // see commit 574ef95f0cd379118be5011704664e4b5351f1e0 and build https://travis-ci.org/onqtam/doctest/builds/230671611
+    DOCTEST_NOINLINE String& operator=(const String& other) {
+        if(!isOnStack())
+            delete[] data.ptr;
+
+        copy(other);
+
+        return *this;
+    }
+    String& operator+=(const String& other);
+
+    String operator+(const String& other) const { return String(*this) += other; }
+
+#ifdef DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+    String(String&& other);
+    String& operator=(String&& other);
+#endif // DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+
+    bool isOnStack() const { return (buf[last] & 128) == 0; }
+
+    char operator[](unsigned i) const { return const_cast<String*>(this)->operator[](i); } // NOLINT
+    char& operator[](unsigned i) {
+        if(isOnStack())
+            return reinterpret_cast<char*>(buf)[i];
+        return data.ptr[i];
+    }
+
+    const char* c_str() const { return const_cast<String*>(this)->c_str(); } // NOLINT
+    char*       c_str() {
+        if(isOnStack())
+            return reinterpret_cast<char*>(buf);
+        return data.ptr;
+    }
+
+    unsigned size() const {
+        if(isOnStack())
+            return last - (unsigned(buf[last]) & 31); // using "last" would work only if "len" is 32
+        return data.size;
+    }
+
+    unsigned capacity() const {
+        if(isOnStack())
+            return len;
+        return data.capacity;
+    }
+
+    int compare(const char* other, bool no_case = false) const;
+    int compare(const String& other, bool no_case = false) const;
+};
+
+// clang-format off
+inline bool operator==(const String& lhs, const String& rhs) { return lhs.compare(rhs) == 0; }
+inline bool operator!=(const String& lhs, const String& rhs) { return lhs.compare(rhs) != 0; }
+inline bool operator< (const String& lhs, const String& rhs) { return lhs.compare(rhs) < 0; }
+inline bool operator> (const String& lhs, const String& rhs) { return lhs.compare(rhs) > 0; }
+inline bool operator<=(const String& lhs, const String& rhs) { return (lhs != rhs) ? lhs.compare(rhs) < 0 : true; }
+inline bool operator>=(const String& lhs, const String& rhs) { return (lhs != rhs) ? lhs.compare(rhs) > 0 : true; }
+// clang-format on
+
+DOCTEST_INTERFACE std::ostream& operator<<(std::ostream& stream, const String& in);
+
+namespace detail
+{
+#ifndef DOCTEST_CONFIG_WITH_STATIC_ASSERT
+    namespace static_assert_impl
+    {
+        template <bool>
+        struct StaticAssertion;
+
+        template <>
+        struct StaticAssertion<true>
+        {};
+
+        template <int i>
+        struct StaticAssertionTest
+        {};
+    }  // namespace static_assert_impl
+#endif // DOCTEST_CONFIG_WITH_STATIC_ASSERT
+
+    namespace traits
+    {
+        template <typename T>
+        struct remove_const
+        { typedef T type; };
+
+        template <typename T>
+        struct remove_const<const T>
+        { typedef T type; };
+
+        template <typename T>
+        struct remove_volatile
+        { typedef T type; };
+
+        template <typename T>
+        struct remove_volatile<volatile T>
+        { typedef T type; };
+
+        template <typename T>
+        struct remove_cv
+        { typedef typename remove_volatile<typename remove_const<T>::type>::type type; };
+
+        template <typename T>
+        struct is_pointer_helper
+        { static const bool value = false; };
+
+        template <typename T>
+        struct is_pointer_helper<T*>
+        // cppcheck-suppress unusedStructMember
+        { static const bool value = true; };
+
+        template <typename T>
+        struct is_pointer
+        // cppcheck-suppress unusedStructMember
+        { static const bool value = is_pointer_helper<typename remove_cv<T>::type>::value; };
+
+        template <bool CONDITION, typename TYPE = void>
+        struct enable_if
+        {};
+
+        template <typename TYPE>
+        struct enable_if<true, TYPE>
+        { typedef TYPE type; };
+
+        template <typename T>
+        struct remove_reference
+        { typedef T type; };
+
+        template <typename T>
+        struct remove_reference<T&>
+        { typedef T type; };
+
+        template <typename T, typename AT_1 = void>
+        class is_constructible_impl
+        {
+        private:
+            template <typename C_T, typename C_AT_1>
+            static bool test(typename enable_if< //!OCLINT avoid private static members
+                             sizeof(C_T) ==
+                             sizeof(C_T(static_cast<C_AT_1>(
+                                     *static_cast<typename remove_reference<C_AT_1>::type*>(
+                                             0))))>::type*);
+
+            template <typename, typename>
+            static int test(...); //!OCLINT avoid private static members
+
+        public:
+            static const bool value = sizeof(test<T, AT_1>(0)) == sizeof(bool);
+        };
+
+        template <typename T>
+        class is_constructible_impl<T, void>
+        {
+        private:
+            template <typename C_T>
+            static C_T testFun(C_T); //!OCLINT avoid private static members
+
+            template <typename C_T>
+            static bool test(typename enable_if< //!OCLINT avoid private static members
+                             sizeof(C_T) == sizeof(testFun(C_T()))>::type*);
+
+            template <typename>
+            static int test(...); //!OCLINT avoid private static members
+
+        public:
+            static const bool value = sizeof(test<T>(0)) == sizeof(bool);
+        };
+
+// is_constructible<> taken from here: http://stackoverflow.com/a/40443701/3162383
+// for GCC/Clang gives the same results as std::is_constructible<> - see here: https://wandbox.org/permlink/bNWr7Ii2fuz4Vf7A
+// modifications:
+// - reworked to support only 1 argument (mainly because of MSVC...)
+// - removed pointer support
+// MSVC support:
+// - for versions before 2012 read the CAUTION comment below
+// currently intended for use only in the Approx() helper for strong typedefs of double - see issue #62
+#ifndef _MSC_VER
+        template <typename T, typename AT_1 = void>
+        class is_constructible
+        {
+        public:
+            static const bool value = is_pointer<typename remove_reference<T>::type>::value ?
+                                              false :
+                                              is_constructible_impl<T, AT_1>::value;
+        };
+#elif defined(_MSC_VER) && (_MSC_VER >= 1700)
+        template <typename T, typename AT_1>
+        struct is_constructible
+        { static const bool value = __is_constructible(T, AT_1); };
+#elif defined(_MSC_VER)
+        // !!! USE WITH CAUTION !!!
+        // will always return false - unable to implement this for versions of MSVC older than 2012 for now...
+        template <typename T, typename AT_1>
+        struct is_constructible
+        { static const bool value = false; };
+#endif // _MSC_VER
+    }  // namespace traits
+
+    template <typename T>
+    struct deferred_false
+    // cppcheck-suppress unusedStructMember
+    { static const bool value = false; };
+
+    // to silence the warning "-Wzero-as-null-pointer-constant" only for gcc 5 for the Approx template ctor - pragmas don't work for it...
+    inline void* getNull() { return 0; }
+
+    namespace has_insertion_operator_impl
+    {
+        typedef char no;
+        typedef char yes[2];
+
+        struct any_t
+        {
+            template <typename T>
+            // cppcheck-suppress noExplicitConstructor
+            any_t(const DOCTEST_REF_WRAP(T));
+        };
+
+        yes& testStreamable(std::ostream&);
+        no   testStreamable(no);
+
+        no operator<<(const std::ostream&, const any_t&);
+
+        template <typename T>
+        struct has_insertion_operator
+        {
+            static std::ostream& s;
+            static const DOCTEST_REF_WRAP(T) t;
+            static const bool value = sizeof(testStreamable(s << t)) == sizeof(yes);
+        };
+    } // namespace has_insertion_operator_impl
+
+    template <typename T>
+    struct has_insertion_operator : has_insertion_operator_impl::has_insertion_operator<T>
+    {};
+
+    DOCTEST_INTERFACE void my_memcpy(void* dest, const void* src, unsigned num);
+    DOCTEST_INTERFACE unsigned my_strlen(const char* in);
+
+    DOCTEST_INTERFACE std::ostream* createStream();
+    DOCTEST_INTERFACE String getStreamResult(std::ostream*);
+    DOCTEST_INTERFACE void   freeStream(std::ostream*);
+
+    template <bool C>
+    struct StringMakerBase
+    {
+        template <typename T>
+        static String convert(const DOCTEST_REF_WRAP(T)) {
+            return "{?}";
+        }
+    };
+
+    template <>
+    struct StringMakerBase<true>
+    {
+        template <typename T>
+        static String convert(const DOCTEST_REF_WRAP(T) in) {
+            std::ostream* stream = createStream();
+            *stream << in;
+            String result = getStreamResult(stream);
+            freeStream(stream);
+            return result;
+        }
+    };
+
+    DOCTEST_INTERFACE String rawMemoryToString(const void* object, unsigned size);
+
+    template <typename T>
+    String rawMemoryToString(const DOCTEST_REF_WRAP(T) object) {
+        return rawMemoryToString(&object, sizeof(object));
+    }
+
+    class NullType
+    {};
+
+    template <class T, class U>
+    struct Typelist
+    {
+        typedef T Head;
+        typedef U Tail;
+    };
+
+    // type of recursive function
+    template <class TList, class Callable>
+    struct ForEachType;
+
+    // Recursion rule
+    template <class Head, class Tail, class Callable>
+    struct ForEachType<Typelist<Head, Tail>, Callable> : public ForEachType<Tail, Callable>
+    {
+        enum
+        {
+            value = 1 + ForEachType<Tail, Callable>::value
+        };
+
+        explicit ForEachType(Callable& callable)
+                : ForEachType<Tail, Callable>(callable) {
+#if defined(_MSC_VER) && _MSC_VER <= 1900
+            callable.operator()<value, Head>();
+#else  // _MSC_VER
+            callable.template operator()<value, Head>();
+#endif // _MSC_VER
+        }
+    };
+
+    // Recursion end
+    template <class Head, class Callable>
+    struct ForEachType<Typelist<Head, NullType>, Callable>
+    {
+    public:
+        enum
+        {
+            value = 0
+        };
+
+        explicit ForEachType(Callable& callable) {
+#if defined(_MSC_VER) && _MSC_VER <= 1900
+            callable.operator()<value, Head>();
+#else  // _MSC_VER
+            callable.template operator()<value, Head>();
+#endif // _MSC_VER
+        }
+    };
+
+    template <typename T>
+    const char* type_to_string() {
+        return "<>";
+    }
+} // namespace detail
+
+template <typename T1 = detail::NullType, typename T2 = detail::NullType,
+          typename T3 = detail::NullType, typename T4 = detail::NullType,
+          typename T5 = detail::NullType, typename T6 = detail::NullType,
+          typename T7 = detail::NullType, typename T8 = detail::NullType,
+          typename T9 = detail::NullType, typename T10 = detail::NullType,
+          typename T11 = detail::NullType, typename T12 = detail::NullType,
+          typename T13 = detail::NullType, typename T14 = detail::NullType,
+          typename T15 = detail::NullType, typename T16 = detail::NullType,
+          typename T17 = detail::NullType, typename T18 = detail::NullType,
+          typename T19 = detail::NullType, typename T20 = detail::NullType,
+          typename T21 = detail::NullType, typename T22 = detail::NullType,
+          typename T23 = detail::NullType, typename T24 = detail::NullType,
+          typename T25 = detail::NullType, typename T26 = detail::NullType,
+          typename T27 = detail::NullType, typename T28 = detail::NullType,
+          typename T29 = detail::NullType, typename T30 = detail::NullType,
+          typename T31 = detail::NullType, typename T32 = detail::NullType,
+          typename T33 = detail::NullType, typename T34 = detail::NullType,
+          typename T35 = detail::NullType, typename T36 = detail::NullType,
+          typename T37 = detail::NullType, typename T38 = detail::NullType,
+          typename T39 = detail::NullType, typename T40 = detail::NullType,
+          typename T41 = detail::NullType, typename T42 = detail::NullType,
+          typename T43 = detail::NullType, typename T44 = detail::NullType,
+          typename T45 = detail::NullType, typename T46 = detail::NullType,
+          typename T47 = detail::NullType, typename T48 = detail::NullType,
+          typename T49 = detail::NullType, typename T50 = detail::NullType,
+          typename T51 = detail::NullType, typename T52 = detail::NullType,
+          typename T53 = detail::NullType, typename T54 = detail::NullType,
+          typename T55 = detail::NullType, typename T56 = detail::NullType,
+          typename T57 = detail::NullType, typename T58 = detail::NullType,
+          typename T59 = detail::NullType, typename T60 = detail::NullType>
+struct Types
+{
+private:
+    typedef typename Types<T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17,
+                           T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31,
+                           T32, T33, T34, T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45,
+                           T46, T47, T48, T49, T50, T51, T52, T53, T54, T55, T56, T57, T58, T59,
+                           T60>::Result TailResult;
+
+public:
+    typedef detail::Typelist<T1, TailResult> Result;
+};
+
+template <>
+struct Types<>
+{ typedef detail::NullType Result; };
+
+template <typename T>
+struct StringMaker : detail::StringMakerBase<detail::has_insertion_operator<T>::value>
+{};
+
+template <typename T>
+struct StringMaker<T*>
+{
+    template <typename U>
+    static String convert(U* p) {
+        if(p)
+            return detail::rawMemoryToString(p);
+        return "NULL";
+    }
+};
+
+template <typename R, typename C>
+struct StringMaker<R C::*>
+{
+    static String convert(R C::*p) {
+        if(p)
+            return detail::rawMemoryToString(p);
+        return "NULL";
+    }
+};
+
+template <typename T>
+String toString(const DOCTEST_REF_WRAP(T) value) {
+    return StringMaker<T>::convert(value);
+}
+
+#ifdef DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+DOCTEST_INTERFACE String toString(char* in);
+DOCTEST_INTERFACE String toString(const char* in);
+#endif // DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+DOCTEST_INTERFACE String toString(bool in);
+DOCTEST_INTERFACE String toString(float in);
+DOCTEST_INTERFACE String toString(double in);
+DOCTEST_INTERFACE String toString(double long in);
+
+DOCTEST_INTERFACE String toString(char in);
+DOCTEST_INTERFACE String toString(char signed in);
+DOCTEST_INTERFACE String toString(char unsigned in);
+DOCTEST_INTERFACE String toString(int short in);
+DOCTEST_INTERFACE String toString(int short unsigned in);
+DOCTEST_INTERFACE String toString(int in);
+DOCTEST_INTERFACE String toString(int unsigned in);
+DOCTEST_INTERFACE String toString(int long in);
+DOCTEST_INTERFACE String toString(int long unsigned in);
+
+#ifdef DOCTEST_CONFIG_WITH_LONG_LONG
+DOCTEST_INTERFACE String toString(int long long in);
+DOCTEST_INTERFACE String toString(int long long unsigned in);
+#endif // DOCTEST_CONFIG_WITH_LONG_LONG
+
+#ifdef DOCTEST_CONFIG_WITH_NULLPTR
+DOCTEST_INTERFACE String toString(std::nullptr_t in);
+#endif // DOCTEST_CONFIG_WITH_NULLPTR
+
+class DOCTEST_INTERFACE Approx
+{
+public:
+    explicit Approx(double value);
+
+    Approx operator()(double value) const {
+        Approx approx(value);
+        approx.epsilon(m_epsilon);
+        approx.scale(m_scale);
+        return approx;
+    }
+
+    template <typename T>
+    explicit Approx(const T& value,
+                    typename detail::traits::enable_if<
+                            detail::traits::is_constructible<double, T>::value>::type* =
+                            static_cast<T*>(detail::getNull())) {
+        *this = Approx(static_cast<double>(value));
+    }
+
+    // clang-format off
+    // overloads for double - the first one is necessary as it is in the implementation part of doctest
+    // as for the others - keeping them for potentially faster compile times
+    DOCTEST_INTERFACE friend bool operator==(double lhs, Approx const& rhs);
+    friend bool operator==(Approx const& lhs, double rhs) { return operator==(rhs, lhs); }
+    friend bool operator!=(double lhs, Approx const& rhs) { return !operator==(lhs, rhs); }
+    friend bool operator!=(Approx const& lhs, double rhs) { return !operator==(rhs, lhs); }
+    friend bool operator<=(double lhs, Approx const& rhs) { return lhs < rhs.m_value || lhs == rhs; }
+    friend bool operator<=(Approx const& lhs, double rhs) { return lhs.m_value < rhs || lhs == rhs; }
+    friend bool operator>=(double lhs, Approx const& rhs) { return lhs > rhs.m_value || lhs == rhs; }
+    friend bool operator>=(Approx const& lhs, double rhs) { return lhs.m_value > rhs || lhs == rhs; }
+    friend bool operator< (double lhs, Approx const& rhs) { return lhs < rhs.m_value && lhs != rhs; }
+    friend bool operator< (Approx const& lhs, double rhs) { return lhs.m_value < rhs && lhs != rhs; }
+    friend bool operator> (double lhs, Approx const& rhs) { return lhs > rhs.m_value && lhs != rhs; }
+    friend bool operator> (Approx const& lhs, double rhs) { return lhs.m_value > rhs && lhs != rhs; }
+
+#define DOCTEST_APPROX_PREFIX \
+    template <typename T> friend typename detail::traits::enable_if<detail::traits::is_constructible<double, T>::value, bool>::type
+
+    DOCTEST_APPROX_PREFIX operator==(const T& lhs, const Approx& rhs) { return operator==(double(lhs), rhs); }
+    DOCTEST_APPROX_PREFIX operator==(const Approx& lhs, const T& rhs) { return operator==(rhs, lhs); }
+    DOCTEST_APPROX_PREFIX operator!=(const T& lhs, const Approx& rhs) { return !operator==(lhs, rhs); }
+    DOCTEST_APPROX_PREFIX operator!=(const Approx& lhs, const T& rhs) { return !operator==(rhs, lhs); }
+    DOCTEST_APPROX_PREFIX operator<=(const T& lhs, const Approx& rhs) { return double(lhs) < rhs.m_value || lhs == rhs; }
+    DOCTEST_APPROX_PREFIX operator<=(const Approx& lhs, const T& rhs) { return lhs.m_value < double(rhs) || lhs == rhs; }
+    DOCTEST_APPROX_PREFIX operator>=(const T& lhs, const Approx& rhs) { return double(lhs) > rhs.m_value || lhs == rhs; }
+    DOCTEST_APPROX_PREFIX operator>=(const Approx& lhs, const T& rhs) { return lhs.m_value > double(rhs) || lhs == rhs; }
+    DOCTEST_APPROX_PREFIX operator< (const T& lhs, const Approx& rhs) { return double(lhs) < rhs.m_value && lhs != rhs; }
+    DOCTEST_APPROX_PREFIX operator< (const Approx& lhs, const T& rhs) { return lhs.m_value < double(rhs) && lhs != rhs; }
+    DOCTEST_APPROX_PREFIX operator> (const T& lhs, const Approx& rhs) { return double(lhs) > rhs.m_value && lhs != rhs; }
+    DOCTEST_APPROX_PREFIX operator> (const Approx& lhs, const T& rhs) { return lhs.m_value > double(rhs) && lhs != rhs; }
+#undef DOCTEST_APPROX_PREFIX
+    // clang-format on
+
+    Approx& epsilon(double newEpsilon) {
+        m_epsilon = (newEpsilon);
+        return *this;
+    }
+
+    template <typename T>
+    typename detail::traits::enable_if<detail::traits::is_constructible<double, T>::value,
+                                       Approx&>::type
+    epsilon(const T& newEpsilon) {
+        m_epsilon = static_cast<double>(newEpsilon);
+        return *this;
+    }
+
+    Approx& scale(double newScale) {
+        m_scale = (newScale);
+        return *this;
+    }
+
+    template <typename T>
+    typename detail::traits::enable_if<detail::traits::is_constructible<double, T>::value,
+                                       Approx&>::type
+    scale(const T& newScale) {
+        m_scale = static_cast<double>(newScale);
+        return *this;
+    }
+
+    String toString() const;
+
+private:
+    double m_epsilon;
+    double m_scale;
+    double m_value;
+};
+
+template <>
+inline String toString<Approx>(const DOCTEST_REF_WRAP(Approx) value) {
+    return value.toString();
+}
+
+#if !defined(DOCTEST_CONFIG_DISABLE)
+
+namespace detail
+{
+    // the function type this library works with
+    typedef void (*funcType)();
+
+    namespace assertType
+    {
+        enum Enum
+        {
+            // macro traits
+
+            is_warn    = 1,
+            is_check   = 2,
+            is_require = 4,
+
+            is_throws    = 8,
+            is_throws_as = 16,
+            is_nothrow   = 32,
+
+            is_fast  = 64, // not checked anywhere - used just to distinguish the types
+            is_false = 128,
+            is_unary = 256,
+
+            is_eq = 512,
+            is_ne = 1024,
+
+            is_lt = 2048,
+            is_gt = 4096,
+
+            is_ge = 8192,
+            is_le = 16384,
+
+            // macro types
+
+            DT_WARN    = is_warn,
+            DT_CHECK   = is_check,
+            DT_REQUIRE = is_require,
+
+            DT_WARN_FALSE    = is_false | is_warn,
+            DT_CHECK_FALSE   = is_false | is_check,
+            DT_REQUIRE_FALSE = is_false | is_require,
+
+            DT_WARN_THROWS    = is_throws | is_warn,
+            DT_CHECK_THROWS   = is_throws | is_check,
+            DT_REQUIRE_THROWS = is_throws | is_require,
+
+            DT_WARN_THROWS_AS    = is_throws_as | is_warn,
+            DT_CHECK_THROWS_AS   = is_throws_as | is_check,
+            DT_REQUIRE_THROWS_AS = is_throws_as | is_require,
+
+            DT_WARN_NOTHROW    = is_nothrow | is_warn,
+            DT_CHECK_NOTHROW   = is_nothrow | is_check,
+            DT_REQUIRE_NOTHROW = is_nothrow | is_require,
+
+            DT_WARN_EQ    = is_eq | is_warn,
+            DT_CHECK_EQ   = is_eq | is_check,
+            DT_REQUIRE_EQ = is_eq | is_require,
+
+            DT_WARN_NE    = is_ne | is_warn,
+            DT_CHECK_NE   = is_ne | is_check,
+            DT_REQUIRE_NE = is_ne | is_require,
+
+            DT_WARN_GT    = is_gt | is_warn,
+            DT_CHECK_GT   = is_gt | is_check,
+            DT_REQUIRE_GT = is_gt | is_require,
+
+            DT_WARN_LT    = is_lt | is_warn,
+            DT_CHECK_LT   = is_lt | is_check,
+            DT_REQUIRE_LT = is_lt | is_require,
+
+            DT_WARN_GE    = is_ge | is_warn,
+            DT_CHECK_GE   = is_ge | is_check,
+            DT_REQUIRE_GE = is_ge | is_require,
+
+            DT_WARN_LE    = is_le | is_warn,
+            DT_CHECK_LE   = is_le | is_check,
+            DT_REQUIRE_LE = is_le | is_require,
+
+            DT_WARN_UNARY    = is_unary | is_warn,
+            DT_CHECK_UNARY   = is_unary | is_check,
+            DT_REQUIRE_UNARY = is_unary | is_require,
+
+            DT_WARN_UNARY_FALSE    = is_false | is_unary | is_warn,
+            DT_CHECK_UNARY_FALSE   = is_false | is_unary | is_check,
+            DT_REQUIRE_UNARY_FALSE = is_false | is_unary | is_require,
+
+            DT_FAST_WARN_EQ    = is_fast | is_eq | is_warn,
+            DT_FAST_CHECK_EQ   = is_fast | is_eq | is_check,
+            DT_FAST_REQUIRE_EQ = is_fast | is_eq | is_require,
+
+            DT_FAST_WARN_NE    = is_fast | is_ne | is_warn,
+            DT_FAST_CHECK_NE   = is_fast | is_ne | is_check,
+            DT_FAST_REQUIRE_NE = is_fast | is_ne | is_require,
+
+            DT_FAST_WARN_GT    = is_fast | is_gt | is_warn,
+            DT_FAST_CHECK_GT   = is_fast | is_gt | is_check,
+            DT_FAST_REQUIRE_GT = is_fast | is_gt | is_require,
+
+            DT_FAST_WARN_LT    = is_fast | is_lt | is_warn,
+            DT_FAST_CHECK_LT   = is_fast | is_lt | is_check,
+            DT_FAST_REQUIRE_LT = is_fast | is_lt | is_require,
+
+            DT_FAST_WARN_GE    = is_fast | is_ge | is_warn,
+            DT_FAST_CHECK_GE   = is_fast | is_ge | is_check,
+            DT_FAST_REQUIRE_GE = is_fast | is_ge | is_require,
+
+            DT_FAST_WARN_LE    = is_fast | is_le | is_warn,
+            DT_FAST_CHECK_LE   = is_fast | is_le | is_check,
+            DT_FAST_REQUIRE_LE = is_fast | is_le | is_require,
+
+            DT_FAST_WARN_UNARY    = is_fast | is_unary | is_warn,
+            DT_FAST_CHECK_UNARY   = is_fast | is_unary | is_check,
+            DT_FAST_REQUIRE_UNARY = is_fast | is_unary | is_require,
+
+            DT_FAST_WARN_UNARY_FALSE    = is_fast | is_false | is_unary | is_warn,
+            DT_FAST_CHECK_UNARY_FALSE   = is_fast | is_false | is_unary | is_check,
+            DT_FAST_REQUIRE_UNARY_FALSE = is_fast | is_false | is_unary | is_require
+        };
+    } // namespace assertType
+
+    DOCTEST_INTERFACE const char* getAssertString(assertType::Enum val);
+
+    // clang-format off
+    template<class T>               struct decay_array       { typedef T type; };
+    template<class T, unsigned N>   struct decay_array<T[N]> { typedef T* type; };
+    template<class T>               struct decay_array<T[]>  { typedef T* type; };
+
+    template<class T>   struct not_char_pointer              { enum { value = 1 }; };
+    template<>          struct not_char_pointer<char*>       { enum { value = 0 }; };
+    template<>          struct not_char_pointer<const char*> { enum { value = 0 }; };
+
+    template<class T> struct can_use_op : not_char_pointer<typename decay_array<T>::type> {};
+    // clang-format on
+
+    struct TestFailureException
+    {};
+
+    DOCTEST_INTERFACE bool checkIfShouldThrow(assertType::Enum assert_type);
+    DOCTEST_INTERFACE void fastAssertThrowIfFlagSet(int flags);
+    DOCTEST_INTERFACE void throwException();
+
+    struct TestAccessibleContextState
+    {
+        bool no_throw; // to skip exceptions-related assertion macros
+        bool success;  // include successful assertions in output
+    };
+
+    struct ContextState;
+
+    DOCTEST_INTERFACE TestAccessibleContextState* getTestsContextState();
+
+    struct DOCTEST_INTERFACE SubcaseSignature
+    {
+        const char* m_name;
+        const char* m_file;
+        int         m_line;
+
+        SubcaseSignature(const char* name, const char* file, int line)
+                : m_name(name)
+                , m_file(file)
+                , m_line(line) {}
+
+        bool operator<(const SubcaseSignature& other) const;
+    };
+
+    // cppcheck-suppress copyCtorAndEqOperator
+    struct DOCTEST_INTERFACE Subcase
+    {
+        SubcaseSignature m_signature;
+        bool             m_entered;
+
+        Subcase(const char* name, const char* file, int line);
+        Subcase(const Subcase& other);
+        ~Subcase();
+
+        operator bool() const { return m_entered; }
+    };
+
+    template <typename L, typename R>
+    String stringifyBinaryExpr(const DOCTEST_REF_WRAP(L) lhs, const char* op,
+                               const DOCTEST_REF_WRAP(R) rhs) {
+        return toString(lhs) + op + toString(rhs);
+    }
+
+    struct DOCTEST_INTERFACE Result
+    {
+        bool   m_passed;
+        String m_decomposition;
+
+        ~Result();
+
+        DOCTEST_NOINLINE Result(bool passed = false, const String& decomposition = String())
+                : m_passed(passed)
+                , m_decomposition(decomposition) {}
+
+        DOCTEST_NOINLINE Result(const Result& other)
+                : m_passed(other.m_passed)
+                , m_decomposition(other.m_decomposition) {}
+
+        Result& operator=(const Result& other);
+
+        operator bool() { return !m_passed; }
+
+        // clang-format off
+        // forbidding some expressions based on this table: http://en.cppreference.com/w/cpp/language/operator_precedence
+        template <typename R> Result& operator&  (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator^  (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator|  (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator&& (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator|| (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator== (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator!= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator<  (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator>  (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator<= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator>= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator=  (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator+= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator-= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator*= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator/= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator%= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator<<=(const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator>>=(const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator&= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator^= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        template <typename R> Result& operator|= (const R&) { DOCTEST_STATIC_ASSERT(deferred_false<R>::value, Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison); return *this; }
+        // clang-format on
+    };
+
+#ifndef DOCTEST_CONFIG_NO_COMPARISON_WARNING_SUPPRESSION
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wsign-conversion"
+#pragma clang diagnostic ignored "-Wsign-compare"
+//#pragma clang diagnostic ignored "-Wdouble-promotion"
+//#pragma clang diagnostic ignored "-Wconversion"
+//#pragma clang diagnostic ignored "-Wfloat-equal"
+#endif // __clang__
+
+#if defined(__GNUC__) && !defined(__clang__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic push
+#endif // > gcc 4.6
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5)
+//#pragma GCC diagnostic ignored "-Wdouble-promotion"
+#endif // > gcc 4.5
+//#pragma GCC diagnostic ignored "-Wconversion"
+//#pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif // __GNUC__
+
+#ifdef _MSC_VER
+#pragma warning(push)
+// http://stackoverflow.com/questions/39479163 what's the difference between C4018 and C4389
+#pragma warning(disable : 4389) // 'operator' : signed/unsigned mismatch
+#pragma warning(disable : 4018) // 'expression' : signed/unsigned mismatch
+//#pragma warning(disable : 4805) // 'operation' : unsafe mix of type 'type' and type 'type' in operation
+#endif // _MSC_VER
+
+#endif // DOCTEST_CONFIG_NO_COMPARISON_WARNING_SUPPRESSION
+
+// clang-format off
+#ifndef DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+#define DOCTEST_COMPARISON_RETURN_TYPE bool
+#else // DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+#define DOCTEST_COMPARISON_RETURN_TYPE typename traits::enable_if<can_use_op<L>::value || can_use_op<R>::value, bool>::type
+    inline bool eq(const char* lhs, const char* rhs) { return String(lhs) == String(rhs); }
+    inline bool ne(const char* lhs, const char* rhs) { return String(lhs) != String(rhs); }
+    inline bool lt(const char* lhs, const char* rhs) { return String(lhs) <  String(rhs); }
+    inline bool gt(const char* lhs, const char* rhs) { return String(lhs) >  String(rhs); }
+    inline bool le(const char* lhs, const char* rhs) { return String(lhs) <= String(rhs); }
+    inline bool ge(const char* lhs, const char* rhs) { return String(lhs) >= String(rhs); }
+#endif // DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+
+    template <typename L, typename R> DOCTEST_COMPARISON_RETURN_TYPE eq(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) { return lhs == rhs; }
+    template <typename L, typename R> DOCTEST_COMPARISON_RETURN_TYPE ne(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) { return lhs != rhs; }
+    template <typename L, typename R> DOCTEST_COMPARISON_RETURN_TYPE lt(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) { return lhs <  rhs; }
+    template <typename L, typename R> DOCTEST_COMPARISON_RETURN_TYPE gt(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) { return lhs >  rhs; }
+    template <typename L, typename R> DOCTEST_COMPARISON_RETURN_TYPE le(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) { return lhs <= rhs; }
+    template <typename L, typename R> DOCTEST_COMPARISON_RETURN_TYPE ge(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) { return lhs >= rhs; }
+// clang-format on
+
+#ifndef DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+#define DOCTEST_CMP_EQ(l, r) l == r
+#define DOCTEST_CMP_NE(l, r) l != r
+#define DOCTEST_CMP_GT(l, r) l > r
+#define DOCTEST_CMP_LT(l, r) l < r
+#define DOCTEST_CMP_GE(l, r) l >= r
+#define DOCTEST_CMP_LE(l, r) l <= r
+#else // DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+#define DOCTEST_CMP_EQ(l, r) eq(l, r)
+#define DOCTEST_CMP_NE(l, r) ne(l, r)
+#define DOCTEST_CMP_GT(l, r) gt(l, r)
+#define DOCTEST_CMP_LT(l, r) lt(l, r)
+#define DOCTEST_CMP_GE(l, r) ge(l, r)
+#define DOCTEST_CMP_LE(l, r) le(l, r)
+#endif // DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+
+#define DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(op, op_str, op_macro)                              \
+    template <typename R>                                                                          \
+    DOCTEST_NOINLINE Result operator op(const DOCTEST_REF_WRAP(R) rhs) {                           \
+        bool res = op_macro(lhs, rhs);                                                             \
+        if(m_assert_type & assertType::is_false)                                                   \
+            res = !res;                                                                            \
+        if(!res || doctest::detail::getTestsContextState()->success)                               \
+            return Result(res, stringifyBinaryExpr(lhs, op_str, rhs));                             \
+        return Result(res);                                                                        \
+    }
+
+#define DOCTEST_FORBIT_EXPRESSION(op)                                                              \
+    template <typename R>                                                                          \
+    Expression_lhs& operator op(const R&) {                                                        \
+        DOCTEST_STATIC_ASSERT(deferred_false<R>::value,                                            \
+                              Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison);         \
+        return *this;                                                                              \
+    }
+
+    template <typename L>
+    // cppcheck-suppress copyCtorAndEqOperator
+    struct Expression_lhs
+    {
+        L                lhs;
+        assertType::Enum m_assert_type;
+
+        explicit Expression_lhs(L in, assertType::Enum assert_type)
+                : lhs(in)
+                , m_assert_type(assert_type) {}
+
+        Expression_lhs(const Expression_lhs& other)
+                : lhs(other.lhs) {}
+
+        DOCTEST_NOINLINE operator Result() {
+            bool res = !!lhs;
+            if(m_assert_type & assertType::is_false) //!OCLINT bitwise operator in conditional
+                res = !res;
+
+            if(!res || getTestsContextState()->success)
+                return Result(res, toString(lhs));
+            return Result(res);
+        }
+
+        // clang-format off
+        DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(==, " == ", DOCTEST_CMP_EQ) //!OCLINT bitwise operator in conditional
+        DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(!=, " != ", DOCTEST_CMP_NE) //!OCLINT bitwise operator in conditional
+        DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(>, " >  ", DOCTEST_CMP_GT) //!OCLINT bitwise operator in conditional
+        DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(<, " <  ", DOCTEST_CMP_LT) //!OCLINT bitwise operator in conditional
+        DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(>=, " >= ", DOCTEST_CMP_GE) //!OCLINT bitwise operator in conditional
+        DOCTEST_DO_BINARY_EXPRESSION_COMPARISON(<=, " <= ", DOCTEST_CMP_LE) //!OCLINT bitwise operator in conditional
+        // clang-format on
+
+        // forbidding some expressions based on this table: http://en.cppreference.com/w/cpp/language/operator_precedence
+        DOCTEST_FORBIT_EXPRESSION(&)
+        DOCTEST_FORBIT_EXPRESSION (^)
+        DOCTEST_FORBIT_EXPRESSION(|)
+        DOCTEST_FORBIT_EXPRESSION(&&)
+        DOCTEST_FORBIT_EXPRESSION(||)
+        DOCTEST_FORBIT_EXPRESSION(=)
+        DOCTEST_FORBIT_EXPRESSION(+=)
+        DOCTEST_FORBIT_EXPRESSION(-=)
+        DOCTEST_FORBIT_EXPRESSION(*=)
+        DOCTEST_FORBIT_EXPRESSION(/=)
+        DOCTEST_FORBIT_EXPRESSION(%=)
+        DOCTEST_FORBIT_EXPRESSION(<<=)
+        DOCTEST_FORBIT_EXPRESSION(>>=)
+        DOCTEST_FORBIT_EXPRESSION(&=)
+        DOCTEST_FORBIT_EXPRESSION(^=)
+        DOCTEST_FORBIT_EXPRESSION(|=)
+        // these 2 are unfortunate because they should be allowed - they have higher precedence over the comparisons, but the
+        // ExpressionDecomposer class uses the left shift operator to capture the left operand of the binary expression...
+        DOCTEST_FORBIT_EXPRESSION(<<)
+        DOCTEST_FORBIT_EXPRESSION(>>)
+    };
+
+#ifndef DOCTEST_CONFIG_NO_COMPARISON_WARNING_SUPPRESSION
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif // __clang__
+
+#if defined(__GNUC__) && !defined(__clang__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic pop
+#endif // > gcc 4.6
+#endif // __GNUC__
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif // _MSC_VER
+
+#endif // DOCTEST_CONFIG_NO_COMPARISON_WARNING_SUPPRESSION
+
+    struct ExpressionDecomposer
+    {
+        assertType::Enum m_assert_type;
+
+        ExpressionDecomposer(assertType::Enum assert_type)
+                : m_assert_type(assert_type) {}
+
+        // The right operator for capturing expressions is "<=" instead of "<<" (based on the operator precedence table)
+        // but then there will be warnings from GCC about "-Wparentheses" and since "_Pragma()" is problematic this will stay for now...
+        // https://github.com/philsquared/Catch/issues/870
+        // https://github.com/philsquared/Catch/issues/565
+        template <typename L>
+        Expression_lhs<const DOCTEST_REF_WRAP(L)> operator<<(const DOCTEST_REF_WRAP(L) operand) {
+            return Expression_lhs<const DOCTEST_REF_WRAP(L)>(operand, m_assert_type);
+        }
+    };
+
+    struct DOCTEST_INTERFACE TestCase
+    {
+        // not used for determining uniqueness
+        funcType m_test;    // a function pointer to the test case
+        String m_full_name; // contains the name (only for templated test cases!) + the template type
+        const char* m_name;       // name of the test case
+        const char* m_type;       // for templated test cases - gets appended to the real name
+        const char* m_test_suite; // the test suite in which the test was added
+        const char* m_description;
+        bool        m_skip;
+        bool        m_may_fail;
+        bool        m_should_fail;
+        int         m_expected_failures;
+        double      m_timeout;
+
+        // fields by which uniqueness of test cases shall be determined
+        const char* m_file; // the file in which the test was registered
+        unsigned    m_line; // the line where the test was registered
+        int m_template_id; // an ID used to distinguish between the different versions of a templated test case
+
+        TestCase(funcType test, const char* file, unsigned line, const TestSuite& test_suite,
+                 const char* type = "", int template_id = -1);
+
+        // for gcc 4.7
+        DOCTEST_NOINLINE ~TestCase() {}
+
+        TestCase& operator*(const char* in);
+
+        template <typename T>
+        TestCase& operator*(const T& in) {
+            in.fill(*this);
+            return *this;
+        }
+
+        TestCase(const TestCase& other) { *this = other; }
+
+        TestCase& operator=(const TestCase& other);
+
+        bool operator<(const TestCase& other) const;
+    };
+
+    // forward declarations of functions used by the macros
+    DOCTEST_INTERFACE int regTest(const TestCase& tc);
+    DOCTEST_INTERFACE int setTestSuite(const TestSuite& ts);
+
+    DOCTEST_INTERFACE void addFailedAssert(assertType::Enum assert_type);
+
+    DOCTEST_INTERFACE void logTestStart(const TestCase& tc);
+    DOCTEST_INTERFACE void logTestEnd();
+
+    DOCTEST_INTERFACE void logTestException(const String& what, bool crash = false);
+
+    DOCTEST_INTERFACE void logAssert(bool passed, const char* decomposition, bool threw,
+                                     const String& exception, const char* expr,
+                                     assertType::Enum assert_type, const char* file, int line);
+
+    DOCTEST_INTERFACE void logAssertThrows(bool threw, const char* expr,
+                                           assertType::Enum assert_type, const char* file,
+                                           int line);
+
+    DOCTEST_INTERFACE void logAssertThrowsAs(bool threw, bool threw_as, const char* as,
+                                             const String& exception, const char* expr,
+                                             assertType::Enum assert_type, const char* file,
+                                             int line);
+
+    DOCTEST_INTERFACE void logAssertNothrow(bool threw, const String& exception, const char* expr,
+                                            assertType::Enum assert_type, const char* file,
+                                            int line);
+
+    DOCTEST_INTERFACE bool isDebuggerActive();
+    DOCTEST_INTERFACE void writeToDebugConsole(const String&);
+
+    namespace binaryAssertComparison
+    {
+        enum Enum
+        {
+            eq = 0,
+            ne,
+            gt,
+            lt,
+            ge,
+            le
+        };
+    } // namespace binaryAssertComparison
+
+    // clang-format off
+    template <int, class L, class R> struct RelationalComparator     { bool operator()(const DOCTEST_REF_WRAP(L),     const DOCTEST_REF_WRAP(R)    ) const { return false;        } };
+    template <class L, class R> struct RelationalComparator<0, L, R> { bool operator()(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) const { return eq(lhs, rhs); } };
+    template <class L, class R> struct RelationalComparator<1, L, R> { bool operator()(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) const { return ne(lhs, rhs); } };
+    template <class L, class R> struct RelationalComparator<2, L, R> { bool operator()(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) const { return gt(lhs, rhs); } };
+    template <class L, class R> struct RelationalComparator<3, L, R> { bool operator()(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) const { return lt(lhs, rhs); } };
+    template <class L, class R> struct RelationalComparator<4, L, R> { bool operator()(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) const { return ge(lhs, rhs); } };
+    template <class L, class R> struct RelationalComparator<5, L, R> { bool operator()(const DOCTEST_REF_WRAP(L) lhs, const DOCTEST_REF_WRAP(R) rhs) const { return le(lhs, rhs); } };
+    // clang-format on
+
+    struct DOCTEST_INTERFACE ResultBuilder
+    {
+        assertType::Enum m_assert_type;
+        const char*      m_file;
+        int              m_line;
+        const char*      m_expr;
+        const char*      m_exception_type;
+
+        Result m_result;
+        bool   m_threw;
+        bool   m_threw_as;
+        bool   m_failed;
+        String m_exception;
+
+        ResultBuilder(assertType::Enum assert_type, const char* file, int line, const char* expr,
+                      const char* exception_type = "");
+
+        ~ResultBuilder();
+
+        void setResult(const Result& res) { m_result = res; }
+
+        template <int         comparison, typename L, typename R>
+        DOCTEST_NOINLINE void binary_assert(const DOCTEST_REF_WRAP(L) lhs,
+                                            const DOCTEST_REF_WRAP(R) rhs) {
+            m_result.m_passed = RelationalComparator<comparison, L, R>()(lhs, rhs);
+            if(!m_result.m_passed || getTestsContextState()->success)
+                m_result.m_decomposition = stringifyBinaryExpr(lhs, ", ", rhs);
+        }
+
+        template <typename L>
+        DOCTEST_NOINLINE void unary_assert(const DOCTEST_REF_WRAP(L) val) {
+            m_result.m_passed = !!val;
+
+            if(m_assert_type & assertType::is_false) //!OCLINT bitwise operator in conditional
+                m_result.m_passed = !m_result.m_passed;
+
+            if(!m_result.m_passed || getTestsContextState()->success)
+                m_result.m_decomposition = toString(val);
+        }
+
+        void unexpectedExceptionOccurred();
+
+        bool log();
+        void react() const;
+    };
+
+    namespace assertAction
+    {
+        enum Enum
+        {
+            nothing     = 0,
+            dbgbreak    = 1,
+            shouldthrow = 2
+        };
+    } // namespace assertAction
+
+    template <int        comparison, typename L, typename R>
+    DOCTEST_NOINLINE int fast_binary_assert(assertType::Enum assert_type, const char* file,
+                                            int line, const char* expr,
+                                            const DOCTEST_REF_WRAP(L) lhs,
+                                            const DOCTEST_REF_WRAP(R) rhs) {
+        ResultBuilder rb(assert_type, file, line, expr);
+
+        rb.m_result.m_passed = RelationalComparator<comparison, L, R>()(lhs, rhs);
+
+        if(!rb.m_result.m_passed || getTestsContextState()->success)
+            rb.m_result.m_decomposition = stringifyBinaryExpr(lhs, ", ", rhs);
+
+        int res = 0;
+
+        if(rb.log())
+            res |= assertAction::dbgbreak;
+
+        if(rb.m_failed && checkIfShouldThrow(assert_type))
+            res |= assertAction::shouldthrow;
+
+#ifdef DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+        // #########################################################################################
+        // IF THE DEBUGGER BREAKS HERE - GO 1 LEVEL UP IN THE CALLSTACK TO SEE THE FAILING ASSERTION
+        // THIS IS THE EFFECT OF HAVING 'DOCTEST_CONFIG_SUPER_FAST_ASSERTS' DEFINED
+        // #########################################################################################
+        if(res & assertAction::dbgbreak)
+            DOCTEST_BREAK_INTO_DEBUGGER();
+        fastAssertThrowIfFlagSet(res);
+#endif // DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+
+        return res;
+    }
+
+    template <typename L>
+    DOCTEST_NOINLINE int fast_unary_assert(assertType::Enum assert_type, const char* file, int line,
+                                           const char* val_str, const DOCTEST_REF_WRAP(L) val) {
+        ResultBuilder rb(assert_type, file, line, val_str);
+
+        rb.m_result.m_passed = !!val;
+
+        if(assert_type & assertType::is_false) //!OCLINT bitwise operator in conditional
+            rb.m_result.m_passed = !rb.m_result.m_passed;
+
+        if(!rb.m_result.m_passed || getTestsContextState()->success)
+            rb.m_result.m_decomposition = toString(val);
+
+        int res = 0;
+
+        if(rb.log())
+            res |= assertAction::dbgbreak;
+
+        if(rb.m_failed && checkIfShouldThrow(assert_type))
+            res |= assertAction::shouldthrow;
+
+#ifdef DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+        // #########################################################################################
+        // IF THE DEBUGGER BREAKS HERE - GO 1 LEVEL UP IN THE CALLSTACK TO SEE THE FAILING ASSERTION
+        // THIS IS THE EFFECT OF HAVING 'DOCTEST_CONFIG_SUPER_FAST_ASSERTS' DEFINED
+        // #########################################################################################
+        if(res & assertAction::dbgbreak)
+            DOCTEST_BREAK_INTO_DEBUGGER();
+        fastAssertThrowIfFlagSet(res);
+#endif // DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+
+        return res;
+    }
+
+    struct DOCTEST_INTERFACE IExceptionTranslator //!OCLINT destructor of virtual class
+    {
+        virtual ~IExceptionTranslator();
+        virtual bool translate(String&) const = 0;
+    };
+
+    template <typename T>
+    class ExceptionTranslator : public IExceptionTranslator //!OCLINT destructor of virtual class
+    {
+    public:
+        explicit ExceptionTranslator(String (*translateFunction)(T))
+                : m_translateFunction(translateFunction) {}
+
+        bool translate(String& res) const {
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+            try {
+                throw;
+                // cppcheck-suppress catchExceptionByValue
+            } catch(T ex) {                    // NOLINT
+                res = m_translateFunction(ex); //!OCLINT parameter reassignment
+                return true;
+            } catch(...) {} //!OCLINT -  empty catch statement
+#endif                      // DOCTEST_CONFIG_NO_EXCEPTIONS
+            ((void)res);    // to silence -Wunused-parameter
+            return false;
+        }
+
+    protected:
+        String (*m_translateFunction)(T);
+    };
+
+    DOCTEST_INTERFACE void registerExceptionTranslatorImpl(
+            const IExceptionTranslator* translateFunction);
+
+    // FIX FOR VISUAL STUDIO VERSIONS PRIOR TO 2015 - they failed to compile the call to operator<< with
+    // std::ostream passed as a reference noting that there is a use of an undefined type (which there isn't)
+    DOCTEST_INTERFACE void writeStringToStream(std::ostream* stream, const String& str);
+
+    template <bool C>
+    struct StringStreamBase
+    {
+        template <typename T>
+        static void convert(std::ostream* stream, const T& in) {
+            writeStringToStream(stream, toString(in));
+        }
+
+        // always treat char* as a string in this context - no matter
+        // if DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING is defined
+        static void convert(std::ostream* stream, const char* in) {
+            writeStringToStream(stream, String(in));
+        }
+    };
+
+    template <>
+    struct StringStreamBase<true>
+    {
+        template <typename T>
+        static void convert(std::ostream* stream, const T& in) {
+            *stream << in;
+        }
+    };
+
+    template <typename T>
+    struct StringStream : StringStreamBase<has_insertion_operator<T>::value>
+    {};
+
+    template <typename T>
+    void toStream(std::ostream* stream, const T& value) {
+        StringStream<T>::convert(stream, value);
+    }
+
+    struct IContextScope //!OCLINT destructor of virtual class
+    { virtual void build(std::ostream*) = 0; };
+
+    DOCTEST_INTERFACE void addToContexts(IContextScope* ptr);
+    DOCTEST_INTERFACE void popFromContexts();
+    DOCTEST_INTERFACE void useContextIfExceptionOccurred(IContextScope* ptr);
+
+    // cppcheck-suppress copyCtorAndEqOperator
+    class ContextBuilder
+    {
+        friend class ContextScope;
+
+        struct ICapture //!OCLINT destructor of virtual class
+        { virtual void toStream(std::ostream*) const = 0; };
+
+        template <typename T>
+        struct Capture : ICapture //!OCLINT destructor of virtual class
+        {
+            const T* capture;
+
+            explicit Capture(const T* in)
+                    : capture(in) {}
+            virtual void toStream(std::ostream* stream) const { // override
+                doctest::detail::toStream(stream, *capture);
+            }
+        };
+
+        struct Chunk
+        {
+            char buf[sizeof(Capture<char>)]; // place to construct a Capture<T>
+        };
+
+        struct Node
+        {
+            Chunk chunk;
+            Node* next;
+        };
+
+        Chunk stackChunks[DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK];
+        int   numCaptures;
+        Node* head;
+        Node* tail;
+
+        void build(std::ostream* stream) const {
+            int curr = 0;
+            // iterate over small buffer
+            while(curr < numCaptures && curr < DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK)
+                reinterpret_cast<const ICapture*>(stackChunks[curr++].buf)->toStream(stream);
+            // iterate over list
+            Node* curr_elem = head;
+            while(curr < numCaptures) {
+                reinterpret_cast<const ICapture*>(curr_elem->chunk.buf)->toStream(stream);
+                curr_elem = curr_elem->next;
+                ++curr;
+            }
+        }
+
+        // steal the contents of the other - acting as a move constructor...
+        DOCTEST_NOINLINE ContextBuilder(ContextBuilder& other)
+                : numCaptures(other.numCaptures)
+                , head(other.head)
+                , tail(other.tail) {
+            other.numCaptures = 0;
+            other.head        = 0;
+            other.tail        = 0;
+            my_memcpy(stackChunks, other.stackChunks,
+                      unsigned(int(sizeof(Chunk)) * DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK));
+        }
+
+    public:
+        // cppcheck-suppress uninitMemberVar
+        DOCTEST_NOINLINE ContextBuilder() // NOLINT
+                : numCaptures(0)
+                , head(0)
+                , tail(0) {}
+
+        template <typename T>
+        DOCTEST_NOINLINE ContextBuilder& operator<<(T& in) {
+            Capture<T> temp(&in);
+
+            // construct either on stack or on heap
+            // copy the bytes for the whole object - including the vtable because we cant construct
+            // the object directly in the buffer using placement new - need the <new> header...
+            if(numCaptures < DOCTEST_CONFIG_NUM_CAPTURES_ON_STACK) {
+                my_memcpy(stackChunks[numCaptures].buf, &temp, sizeof(Chunk));
+            } else {
+                Node* curr = new Node;
+                curr->next = 0;
+                if(tail) {
+                    tail->next = curr;
+                    tail       = curr;
+                } else {
+                    head = tail = curr;
+                }
+
+                my_memcpy(tail->chunk.buf, &temp, sizeof(Chunk));
+            }
+            ++numCaptures;
+            return *this;
+        }
+
+        DOCTEST_NOINLINE ~ContextBuilder() {
+            // free the linked list - the ones on the stack are left as-is
+            // no destructors are called at all - there is no need
+            while(head) {
+                Node* next = head->next;
+                delete head;
+                head = next;
+            }
+        }
+
+#ifdef DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+        template <typename T>
+        ContextBuilder& operator<<(const T&&) {
+            DOCTEST_STATIC_ASSERT(
+                    deferred_false<T>::value,
+                    Cannot_pass_temporaries_or_rvalues_to_the_streaming_operator_because_it_caches_pointers_to_the_passed_objects_for_lazy_evaluation);
+            return *this;
+        }
+#endif // DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+    };
+
+    class ContextScope : public IContextScope //!OCLINT destructor of virtual class
+    {
+        ContextBuilder contextBuilder;
+        bool           built;
+
+    public:
+        DOCTEST_NOINLINE explicit ContextScope(ContextBuilder& temp)
+                : contextBuilder(temp)
+                , built(false) {
+            addToContexts(this);
+        }
+
+        DOCTEST_NOINLINE ~ContextScope() {
+            if(!built)
+                useContextIfExceptionOccurred(this);
+            popFromContexts();
+        }
+
+        void build(std::ostream* stream) {
+            built = true;
+            contextBuilder.build(stream);
+        }
+    };
+
+    class DOCTEST_INTERFACE MessageBuilder
+    {
+        std::ostream*                     m_stream;
+        const char*                       m_file;
+        int                               m_line;
+        doctest::detail::assertType::Enum m_severity;
+
+    public:
+        MessageBuilder(const char* file, int line, doctest::detail::assertType::Enum severity);
+        ~MessageBuilder();
+
+        template <typename T>
+        MessageBuilder& operator<<(const T& in) {
+            doctest::detail::toStream(m_stream, in);
+            return *this;
+        }
+
+        bool log();
+        void react();
+    };
+} // namespace detail
+
+struct test_suite
+{
+    const char* data;
+    test_suite(const char* in)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_test_suite = data; }
+    void fill(detail::TestSuite& state) const { state.m_test_suite = data; }
+};
+
+struct description
+{
+    const char* data;
+    description(const char* in)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_description = data; }
+    void fill(detail::TestSuite& state) const { state.m_description = data; }
+};
+
+struct skip
+{
+    bool data;
+    skip(bool in = true)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_skip = data; }
+    void fill(detail::TestSuite& state) const { state.m_skip = data; }
+};
+
+struct timeout
+{
+    double data;
+    timeout(double in)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_timeout = data; }
+    void fill(detail::TestSuite& state) const { state.m_timeout = data; }
+};
+
+struct may_fail
+{
+    bool data;
+    may_fail(bool in = true)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_may_fail = data; }
+    void fill(detail::TestSuite& state) const { state.m_may_fail = data; }
+};
+
+struct should_fail
+{
+    bool data;
+    should_fail(bool in = true)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_should_fail = data; }
+    void fill(detail::TestSuite& state) const { state.m_should_fail = data; }
+};
+
+struct expected_failures
+{
+    int data;
+    expected_failures(int in)
+            : data(in) {}
+    void fill(detail::TestCase& state) const { state.m_expected_failures = data; }
+    void fill(detail::TestSuite& state) const { state.m_expected_failures = data; }
+};
+
+#endif // DOCTEST_CONFIG_DISABLE
+
+#ifndef DOCTEST_CONFIG_DISABLE
+template <typename T>
+int registerExceptionTranslator(String (*translateFunction)(T)) {
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wexit-time-destructors"
+#endif // __clang__
+    static detail::ExceptionTranslator<T> exceptionTranslator(translateFunction);
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif // __clang__
+    detail::registerExceptionTranslatorImpl(&exceptionTranslator);
+    return 0;
+}
+
+#else  // DOCTEST_CONFIG_DISABLE
+template <typename T>
+int registerExceptionTranslator(String (*)(T)) {
+    return 0;
+}
+#endif // DOCTEST_CONFIG_DISABLE
+
+DOCTEST_INTERFACE bool isRunningInTest();
+
+// cppcheck-suppress noCopyConstructor
+class DOCTEST_INTERFACE Context
+{
+#if !defined(DOCTEST_CONFIG_DISABLE)
+    detail::ContextState* p;
+
+    void parseArgs(int argc, const char* const* argv, bool withDefaults = false);
+
+#endif // DOCTEST_CONFIG_DISABLE
+
+public:
+    explicit Context(int argc = 0, const char* const* argv = 0);
+
+    ~Context();
+
+    void applyCommandLine(int argc, const char* const* argv);
+
+    void addFilter(const char* filter, const char* value);
+    void clearFilters();
+    void setOption(const char* option, int value);
+    void setOption(const char* option, const char* value);
+
+    bool shouldExit();
+
+    int run();
+};
+
+} // namespace doctest
+
+// if registering is not disabled
+#if !defined(DOCTEST_CONFIG_DISABLE)
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_EXPAND_VA_ARGS(...) __VA_ARGS__
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_EXPAND_VA_ARGS
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_STRIP_PARENS(x) x
+#define DOCTEST_HANDLE_BRACED_VA_ARGS(expr) DOCTEST_STRIP_PARENS(DOCTEST_EXPAND_VA_ARGS expr)
+
+// registers the test by initializing a dummy var with a function
+#define DOCTEST_REGISTER_FUNCTION(f, decorators)                                                   \
+    DOCTEST_GLOBAL_NO_WARNINGS(DOCTEST_ANONYMOUS(_DOCTEST_ANON_VAR_)) = doctest::detail::regTest(  \
+            doctest::detail::TestCase(f, __FILE__, __LINE__,                                       \
+                                      doctest_detail_test_suite_ns::getCurrentTestSuite()) *       \
+            decorators);                                                                           \
+    DOCTEST_GLOBAL_NO_WARNINGS_END()
+
+#define DOCTEST_IMPLEMENT_FIXTURE(der, base, func, decorators)                                     \
+    namespace                                                                                      \
+    {                                                                                              \
+        struct der : base                                                                          \
+        { void f(); };                                                                             \
+        static void func() {                                                                       \
+            der v;                                                                                 \
+            v.f();                                                                                 \
+        }                                                                                          \
+        DOCTEST_REGISTER_FUNCTION(func, decorators)                                                \
+    }                                                                                              \
+    inline DOCTEST_NOINLINE void der::f()
+
+#define DOCTEST_CREATE_AND_REGISTER_FUNCTION(f, decorators)                                        \
+    static void f();                                                                               \
+    DOCTEST_REGISTER_FUNCTION(f, decorators)                                                       \
+    static void f()
+
+// for registering tests
+#define DOCTEST_TEST_CASE(decorators)                                                              \
+    DOCTEST_CREATE_AND_REGISTER_FUNCTION(DOCTEST_ANONYMOUS(_DOCTEST_ANON_FUNC_), decorators)
+
+// for registering tests with a fixture
+#define DOCTEST_TEST_CASE_FIXTURE(c, decorators)                                                   \
+    DOCTEST_IMPLEMENT_FIXTURE(DOCTEST_ANONYMOUS(_DOCTEST_ANON_CLASS_), c,                          \
+                              DOCTEST_ANONYMOUS(_DOCTEST_ANON_FUNC_), decorators)
+
+// for converting types to strings without the <typeinfo> header and demangling
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TYPE_TO_STRING_IMPL(...)                                                           \
+    template <>                                                                                    \
+    inline const char* type_to_string<__VA_ARGS__>() {                                             \
+        return "<" #__VA_ARGS__ ">";                                                               \
+    }
+#define DOCTEST_TYPE_TO_STRING(...)                                                                \
+    namespace doctest                                                                              \
+    {                                                                                              \
+        namespace detail                                                                           \
+        { DOCTEST_TYPE_TO_STRING_IMPL(__VA_ARGS__) }                                               \
+    }                                                                                              \
+    typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TYPE_TO_STRING_IMPL(x)                                                             \
+    template <>                                                                                    \
+    inline const char* type_to_string<x>() {                                                       \
+        return "<" #x ">";                                                                         \
+    }
+#define DOCTEST_TYPE_TO_STRING(x)                                                                  \
+    namespace doctest                                                                              \
+    {                                                                                              \
+        namespace detail                                                                           \
+        { DOCTEST_TYPE_TO_STRING_IMPL(x) }                                                         \
+    }                                                                                              \
+    typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+// for typed tests
+#define DOCTEST_TEST_CASE_TEMPLATE_IMPL(decorators, T, types, anon)                                \
+    template <typename T>                                                                          \
+    inline void anon();                                                                            \
+    struct DOCTEST_CAT(anon, FUNCTOR)                                                              \
+    {                                                                                              \
+        template <int Index, typename Type>                                                        \
+        void          operator()() {                                                               \
+            doctest::detail::regTest(                                                              \
+                    doctest::detail::TestCase(anon<Type>, __FILE__, __LINE__,                      \
+                                              doctest_detail_test_suite_ns::getCurrentTestSuite(), \
+                                              doctest::detail::type_to_string<Type>(), Index) *    \
+                    decorators);                                                                   \
+        }                                                                                          \
+    };                                                                                             \
+    inline int DOCTEST_CAT(anon, REG_FUNC)() {                                                     \
+        DOCTEST_CAT(anon, FUNCTOR) registrar;                                                      \
+        doctest::detail::ForEachType<DOCTEST_HANDLE_BRACED_VA_ARGS(types)::Result,                 \
+                                     DOCTEST_CAT(anon, FUNCTOR)>                                   \
+                doIt(registrar);                                                                   \
+        return 0;                                                                                  \
+    }                                                                                              \
+    DOCTEST_GLOBAL_NO_WARNINGS(DOCTEST_CAT(anon, DUMMY)) = DOCTEST_CAT(anon, REG_FUNC)();          \
+    DOCTEST_GLOBAL_NO_WARNINGS_END()                                                               \
+    template <typename T>                                                                          \
+    inline void anon()
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TEST_CASE_TEMPLATE(decorators, T, ...)                                             \
+    DOCTEST_TEST_CASE_TEMPLATE_IMPL(decorators, T, (__VA_ARGS__),                                  \
+                                    DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_))
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TEST_CASE_TEMPLATE(decorators, T, types)                                           \
+    DOCTEST_TEST_CASE_TEMPLATE_IMPL(decorators, T, types, DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_))
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_TEST_CASE_TEMPLATE_DEFINE_IMPL(decorators, T, id, anon)                            \
+    template <typename T>                                                                          \
+    inline void anon();                                                                            \
+    struct DOCTEST_CAT(id, _FUNCTOR)                                                               \
+    {                                                                                              \
+        int m_line;                                                                                \
+        DOCTEST_CAT(id, _FUNCTOR)                                                                  \
+        (int line)                                                                                 \
+                : m_line(line) {}                                                                  \
+        template <int Index, typename Type>                                                        \
+        void          operator()() {                                                               \
+            doctest::detail::regTest(                                                              \
+                    doctest::detail::TestCase(anon<Type>, __FILE__, __LINE__,                      \
+                                              doctest_detail_test_suite_ns::getCurrentTestSuite(), \
+                                              doctest::detail::type_to_string<Type>(),             \
+                                              m_line * 1000 + Index) *                             \
+                    decorators);                                                                   \
+        }                                                                                          \
+    };                                                                                             \
+    template <typename T>                                                                          \
+    inline void anon()
+
+#define DOCTEST_TEST_CASE_TEMPLATE_DEFINE(decorators, T, id)                                       \
+    DOCTEST_TEST_CASE_TEMPLATE_DEFINE_IMPL(decorators, T, id, DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_))
+
+#define DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE_IMPL(id, types, anon)                               \
+    static int DOCTEST_CAT(anon, REG_FUNC)() {                                                     \
+        DOCTEST_CAT(id, _FUNCTOR) registrar(__LINE__);                                             \
+        doctest::detail::ForEachType<DOCTEST_HANDLE_BRACED_VA_ARGS(types)::Result,                 \
+                                     DOCTEST_CAT(id, _FUNCTOR)>                                    \
+                doIt(registrar);                                                                   \
+        return 0;                                                                                  \
+    }                                                                                              \
+    DOCTEST_GLOBAL_NO_WARNINGS(DOCTEST_CAT(anon, DUMMY)) = DOCTEST_CAT(anon, REG_FUNC)();          \
+    DOCTEST_GLOBAL_NO_WARNINGS_END() typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE(id, ...)                                            \
+    DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE_IMPL(id, (__VA_ARGS__),                                 \
+                                                DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_))
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE(id, types)                                          \
+    DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE_IMPL(id, types, DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_))
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+// for subcases
+#if defined(__GNUC__)
+#define DOCTEST_SUBCASE(name)                                                                      \
+    if(const doctest::detail::Subcase & DOCTEST_ANONYMOUS(_DOCTEST_ANON_SUBCASE_)                  \
+                                                __attribute__((unused)) =                          \
+               doctest::detail::Subcase(name, __FILE__, __LINE__))
+#else // __GNUC__
+#define DOCTEST_SUBCASE(name)                                                                      \
+    if(const doctest::detail::Subcase & DOCTEST_ANONYMOUS(_DOCTEST_ANON_SUBCASE_) =                \
+               doctest::detail::Subcase(name, __FILE__, __LINE__))
+#endif // __GNUC__
+
+// for grouping tests in test suites by using code blocks
+#define DOCTEST_TEST_SUITE_IMPL(decorators, ns_name)                                               \
+    namespace ns_name                                                                              \
+    {                                                                                              \
+        namespace doctest_detail_test_suite_ns                                                     \
+        {                                                                                          \
+            inline DOCTEST_NOINLINE doctest::detail::TestSuite& getCurrentTestSuite() {            \
+                static doctest::detail::TestSuite data;                                            \
+                static bool                       inited = false;                                  \
+                if(!inited) {                                                                      \
+                    data* decorators;                                                              \
+                    inited = true;                                                                 \
+                }                                                                                  \
+                return data;                                                                       \
+            }                                                                                      \
+        }                                                                                          \
+    }                                                                                              \
+    namespace ns_name
+
+#define DOCTEST_TEST_SUITE(decorators)                                                             \
+    DOCTEST_TEST_SUITE_IMPL(decorators, DOCTEST_ANONYMOUS(_DOCTEST_ANON_SUITE_))
+
+// for starting a testsuite block
+#define DOCTEST_TEST_SUITE_BEGIN(decorators)                                                       \
+    DOCTEST_GLOBAL_NO_WARNINGS(DOCTEST_ANONYMOUS(_DOCTEST_ANON_VAR_)) =                            \
+            doctest::detail::setTestSuite(doctest::detail::TestSuite() * decorators);              \
+    DOCTEST_GLOBAL_NO_WARNINGS_END()                                                               \
+    typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+
+// for ending a testsuite block
+#define DOCTEST_TEST_SUITE_END                                                                     \
+    DOCTEST_GLOBAL_NO_WARNINGS(DOCTEST_ANONYMOUS(_DOCTEST_ANON_VAR_)) =                            \
+            doctest::detail::setTestSuite(doctest::detail::TestSuite() * "");                      \
+    DOCTEST_GLOBAL_NO_WARNINGS_END()                                                               \
+    typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+
+// for registering exception translators
+#define DOCTEST_REGISTER_EXCEPTION_TRANSLATOR_IMPL(translatorName, signature)                      \
+    static doctest::String translatorName(signature);                                              \
+    DOCTEST_GLOBAL_NO_WARNINGS(DOCTEST_ANONYMOUS(_DOCTEST_ANON_TRANSLATOR_)) =                     \
+            doctest::registerExceptionTranslator(translatorName);                                  \
+    DOCTEST_GLOBAL_NO_WARNINGS_END()                                                               \
+    static doctest::String translatorName(signature)
+
+#define DOCTEST_REGISTER_EXCEPTION_TRANSLATOR(signature)                                           \
+    DOCTEST_REGISTER_EXCEPTION_TRANSLATOR_IMPL(DOCTEST_ANONYMOUS(_DOCTEST_ANON_TRANSLATOR_),       \
+                                               signature)
+
+// for logging
+#define DOCTEST_INFO(x)                                                                            \
+    doctest::detail::ContextScope DOCTEST_ANONYMOUS(_DOCTEST_CAPTURE_)(                            \
+            doctest::detail::ContextBuilder() << x)
+#define DOCTEST_CAPTURE(x) DOCTEST_INFO(#x " := " << x)
+
+#define DOCTEST_ADD_AT_IMPL(type, file, line, mb, x)                                               \
+    do {                                                                                           \
+        doctest::detail::MessageBuilder mb(file, line, doctest::detail::assertType::type);         \
+        mb << x;                                                                                   \
+        if(mb.log())                                                                               \
+            DOCTEST_BREAK_INTO_DEBUGGER();                                                         \
+        mb.react();                                                                                \
+    } while((void)0, 0)
+
+// clang-format off
+#define DOCTEST_ADD_MESSAGE_AT(file, line, x) DOCTEST_ADD_AT_IMPL(is_warn, file, line, DOCTEST_ANONYMOUS(_DOCTEST_MESSAGE_), x)
+#define DOCTEST_ADD_FAIL_CHECK_AT(file, line, x) DOCTEST_ADD_AT_IMPL(is_check, file, line, DOCTEST_ANONYMOUS(_DOCTEST_MESSAGE_), x)
+#define DOCTEST_ADD_FAIL_AT(file, line, x) DOCTEST_ADD_AT_IMPL(is_require, file, line, DOCTEST_ANONYMOUS(_DOCTEST_MESSAGE_), x)
+// clang-format on
+
+#define DOCTEST_MESSAGE(x) DOCTEST_ADD_MESSAGE_AT(__FILE__, __LINE__, x)
+#define DOCTEST_FAIL_CHECK(x) DOCTEST_ADD_FAIL_CHECK_AT(__FILE__, __LINE__, x)
+#define DOCTEST_FAIL(x) DOCTEST_ADD_FAIL_AT(__FILE__, __LINE__, x)
+
+#if __cplusplus >= 201402L || (defined(_MSC_VER) && _MSC_VER >= 1910)
+template <class T, T x>
+constexpr T to_lvalue = x;
+#define DOCTEST_TO_LVALUE(...) to_lvalue<decltype(__VA_ARGS__), __VA_ARGS__>
+#else
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TO_LVALUE(...) TO_LVALUE_CAN_BE_USED_ONLY_IN_CPP14_MODE_OR_WITH_VS_2017_OR_NEWER
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TO_LVALUE(x) TO_LVALUE_CAN_BE_USED_ONLY_IN_CPP14_MODE_OR_WITH_VS_2017_OR_NEWER
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#endif // TO_LVALUE hack for logging macros like INFO()
+
+// common code in asserts - for convenience
+#define DOCTEST_ASSERT_LOG_AND_REACT(rb)                                                           \
+    if(rb.log())                                                                                   \
+        DOCTEST_BREAK_INTO_DEBUGGER();                                                             \
+    rb.react()
+
+#ifdef DOCTEST_CONFIG_NO_TRY_CATCH_IN_ASSERTS
+#define DOCTEST_WRAP_IN_TRY(x) x;
+#else // DOCTEST_CONFIG_NO_TRY_CATCH_IN_ASSERTS
+#define DOCTEST_WRAP_IN_TRY(x)                                                                     \
+    try {                                                                                          \
+        x;                                                                                         \
+    } catch(...) { _DOCTEST_RB.unexpectedExceptionOccurred(); }
+#endif // DOCTEST_CONFIG_NO_TRY_CATCH_IN_ASSERTS
+
+#define DOCTEST_ASSERT_IMPLEMENT_3(expr, assert_type)                                              \
+    doctest::detail::ResultBuilder _DOCTEST_RB(                                                    \
+            doctest::detail::assertType::assert_type, __FILE__, __LINE__,                          \
+            DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)));                                   \
+    DOCTEST_WRAP_IN_TRY(_DOCTEST_RB.setResult(                                                     \
+            doctest::detail::ExpressionDecomposer(doctest::detail::assertType::assert_type)        \
+            << DOCTEST_HANDLE_BRACED_VA_ARGS(expr)))                                               \
+    DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB)
+
+#if defined(__clang__)
+#define DOCTEST_ASSERT_IMPLEMENT_2(expr, assert_type)                                              \
+    _Pragma("clang diagnostic push")                                                               \
+            _Pragma("clang diagnostic ignored \"-Woverloaded-shift-op-parentheses\"")              \
+                    DOCTEST_ASSERT_IMPLEMENT_3(expr, assert_type);                                 \
+    _Pragma("clang diagnostic pop")
+#else // __clang__
+#define DOCTEST_ASSERT_IMPLEMENT_2(expr, assert_type) DOCTEST_ASSERT_IMPLEMENT_3(expr, assert_type);
+#endif // __clang__
+
+#define DOCTEST_ASSERT_IMPLEMENT_1(expr, assert_type)                                              \
+    do {                                                                                           \
+        DOCTEST_ASSERT_IMPLEMENT_2(expr, assert_type);                                             \
+    } while((void)0, 0)
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN(...) DOCTEST_ASSERT_IMPLEMENT_1((__VA_ARGS__), DT_WARN)
+#define DOCTEST_CHECK(...) DOCTEST_ASSERT_IMPLEMENT_1((__VA_ARGS__), DT_CHECK)
+#define DOCTEST_REQUIRE(...) DOCTEST_ASSERT_IMPLEMENT_1((__VA_ARGS__), DT_REQUIRE)
+#define DOCTEST_WARN_FALSE(...) DOCTEST_ASSERT_IMPLEMENT_1((__VA_ARGS__), DT_WARN_FALSE)
+#define DOCTEST_CHECK_FALSE(...) DOCTEST_ASSERT_IMPLEMENT_1((__VA_ARGS__), DT_CHECK_FALSE)
+#define DOCTEST_REQUIRE_FALSE(...) DOCTEST_ASSERT_IMPLEMENT_1((__VA_ARGS__), DT_REQUIRE_FALSE)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN(expr) DOCTEST_ASSERT_IMPLEMENT_1(expr, DT_WARN)
+#define DOCTEST_CHECK(expr) DOCTEST_ASSERT_IMPLEMENT_1(expr, DT_CHECK)
+#define DOCTEST_REQUIRE(expr) DOCTEST_ASSERT_IMPLEMENT_1(expr, DT_REQUIRE)
+#define DOCTEST_WARN_FALSE(expr) DOCTEST_ASSERT_IMPLEMENT_1(expr, DT_WARN_FALSE)
+#define DOCTEST_CHECK_FALSE(expr) DOCTEST_ASSERT_IMPLEMENT_1(expr, DT_CHECK_FALSE)
+#define DOCTEST_REQUIRE_FALSE(expr) DOCTEST_ASSERT_IMPLEMENT_1(expr, DT_REQUIRE_FALSE)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+// clang-format off
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2((cond), DT_WARN); } while((void)0, 0)
+#define DOCTEST_CHECK_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2((cond), DT_CHECK); } while((void)0, 0)
+#define DOCTEST_REQUIRE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2((cond), DT_REQUIRE); } while((void)0, 0)
+#define DOCTEST_WARN_FALSE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2((cond), DT_WARN_FALSE); } while((void)0, 0)
+#define DOCTEST_CHECK_FALSE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2((cond), DT_CHECK_FALSE); } while((void)0, 0)
+#define DOCTEST_REQUIRE_FALSE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2((cond), DT_REQUIRE_FALSE); } while((void)0, 0)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2(cond, DT_WARN); } while((void)0, 0)
+#define DOCTEST_CHECK_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2(cond, DT_CHECK); } while((void)0, 0)
+#define DOCTEST_REQUIRE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2(cond, DT_REQUIRE); } while((void)0, 0)
+#define DOCTEST_WARN_FALSE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2(cond, DT_WARN_FALSE); } while((void)0, 0)
+#define DOCTEST_CHECK_FALSE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2(cond, DT_CHECK_FALSE); } while((void)0, 0)
+#define DOCTEST_REQUIRE_FALSE_MESSAGE(cond, msg) do { DOCTEST_INFO(msg); DOCTEST_ASSERT_IMPLEMENT_2(cond, DT_REQUIRE_FALSE); } while((void)0, 0)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+// clang-format on
+
+#define DOCTEST_ASSERT_THROWS(expr, assert_type)                                                   \
+    do {                                                                                           \
+        if(!doctest::detail::getTestsContextState()->no_throw) {                                   \
+            doctest::detail::ResultBuilder _DOCTEST_RB(doctest::detail::assertType::assert_type,   \
+                                                       __FILE__, __LINE__, #expr);                 \
+            try {                                                                                  \
+                expr;                                                                              \
+            } catch(...) { _DOCTEST_RB.m_threw = true; }                                           \
+            DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB);                                             \
+        }                                                                                          \
+    } while((void)0, 0)
+
+#define DOCTEST_ASSERT_THROWS_AS(expr, as, assert_type)                                            \
+    do {                                                                                           \
+        if(!doctest::detail::getTestsContextState()->no_throw) {                                   \
+            doctest::detail::ResultBuilder _DOCTEST_RB(                                            \
+                    doctest::detail::assertType::assert_type, __FILE__, __LINE__, #expr,           \
+                    DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(as)));                             \
+            try {                                                                                  \
+                expr;                                                                              \
+            } catch(DOCTEST_HANDLE_BRACED_VA_ARGS(as)) {                                           \
+                _DOCTEST_RB.m_threw    = true;                                                     \
+                _DOCTEST_RB.m_threw_as = true;                                                     \
+            } catch(...) { _DOCTEST_RB.unexpectedExceptionOccurred(); }                            \
+            DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB);                                             \
+        }                                                                                          \
+    } while((void)0, 0)
+
+#define DOCTEST_ASSERT_NOTHROW(expr, assert_type)                                                  \
+    do {                                                                                           \
+        if(!doctest::detail::getTestsContextState()->no_throw) {                                   \
+            doctest::detail::ResultBuilder _DOCTEST_RB(doctest::detail::assertType::assert_type,   \
+                                                       __FILE__, __LINE__, #expr);                 \
+            try {                                                                                  \
+                expr;                                                                              \
+            } catch(...) { _DOCTEST_RB.unexpectedExceptionOccurred(); }                            \
+            DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB);                                             \
+        }                                                                                          \
+    } while((void)0, 0)
+
+#define DOCTEST_WARN_THROWS(expr) DOCTEST_ASSERT_THROWS(expr, DT_WARN_THROWS)
+#define DOCTEST_CHECK_THROWS(expr) DOCTEST_ASSERT_THROWS(expr, DT_CHECK_THROWS)
+#define DOCTEST_REQUIRE_THROWS(expr) DOCTEST_ASSERT_THROWS(expr, DT_REQUIRE_THROWS)
+
+// clang-format off
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_THROWS_AS(expr, ...) DOCTEST_ASSERT_THROWS_AS(expr, (__VA_ARGS__), DT_WARN_THROWS_AS)
+#define DOCTEST_CHECK_THROWS_AS(expr, ...) DOCTEST_ASSERT_THROWS_AS(expr, (__VA_ARGS__), DT_CHECK_THROWS_AS)
+#define DOCTEST_REQUIRE_THROWS_AS(expr, ...) DOCTEST_ASSERT_THROWS_AS(expr, (__VA_ARGS__), DT_REQUIRE_THROWS_AS)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_THROWS_AS(expr, ex) DOCTEST_ASSERT_THROWS_AS(expr, ex, DT_WARN_THROWS_AS)
+#define DOCTEST_CHECK_THROWS_AS(expr, ex) DOCTEST_ASSERT_THROWS_AS(expr, ex, DT_CHECK_THROWS_AS)
+#define DOCTEST_REQUIRE_THROWS_AS(expr, ex) DOCTEST_ASSERT_THROWS_AS(expr, ex, DT_REQUIRE_THROWS_AS)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+// clang-format on
+
+#define DOCTEST_WARN_NOTHROW(expr) DOCTEST_ASSERT_NOTHROW(expr, DT_WARN_NOTHROW)
+#define DOCTEST_CHECK_NOTHROW(expr) DOCTEST_ASSERT_NOTHROW(expr, DT_CHECK_NOTHROW)
+#define DOCTEST_REQUIRE_NOTHROW(expr) DOCTEST_ASSERT_NOTHROW(expr, DT_REQUIRE_NOTHROW)
+
+// clang-format off
+#define DOCTEST_WARN_THROWS_MESSAGE(expr, msg) do { DOCTEST_INFO(msg); DOCTEST_WARN_THROWS(expr); } while((void)0, 0)
+#define DOCTEST_CHECK_THROWS_MESSAGE(expr, msg) do { DOCTEST_INFO(msg); DOCTEST_CHECK_THROWS(expr); } while((void)0, 0)
+#define DOCTEST_REQUIRE_THROWS_MESSAGE(expr, msg) do { DOCTEST_INFO(msg); DOCTEST_REQUIRE_THROWS(expr); } while((void)0, 0)
+#define DOCTEST_WARN_THROWS_AS_MESSAGE(expr, ex, msg) do { DOCTEST_INFO(msg); DOCTEST_WARN_THROWS_AS(expr, ex); } while((void)0, 0)
+#define DOCTEST_CHECK_THROWS_AS_MESSAGE(expr, ex, msg) do { DOCTEST_INFO(msg); DOCTEST_CHECK_THROWS_AS(expr, ex); } while((void)0, 0)
+#define DOCTEST_REQUIRE_THROWS_AS_MESSAGE(expr, ex, msg) do { DOCTEST_INFO(msg); DOCTEST_REQUIRE_THROWS_AS(expr, ex); } while((void)0, 0)
+#define DOCTEST_WARN_NOTHROW_MESSAGE(expr, msg) do { DOCTEST_INFO(msg); DOCTEST_WARN_NOTHROW(expr); } while((void)0, 0)
+#define DOCTEST_CHECK_NOTHROW_MESSAGE(expr, msg) do { DOCTEST_INFO(msg); DOCTEST_CHECK_NOTHROW(expr); } while((void)0, 0)
+#define DOCTEST_REQUIRE_NOTHROW_MESSAGE(expr, msg) do { DOCTEST_INFO(msg); DOCTEST_REQUIRE_NOTHROW(expr); } while((void)0, 0)
+// clang-format on
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_BINARY_ASSERT(assert_type, expr, comp)                                             \
+    do {                                                                                           \
+        doctest::detail::ResultBuilder _DOCTEST_RB(                                                \
+                doctest::detail::assertType::assert_type, __FILE__, __LINE__,                      \
+                DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)));                               \
+        DOCTEST_WRAP_IN_TRY(                                                                       \
+                _DOCTEST_RB.binary_assert<doctest::detail::binaryAssertComparison::comp>(          \
+                        DOCTEST_HANDLE_BRACED_VA_ARGS(expr)))                                      \
+        DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB);                                                 \
+    } while((void)0, 0)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_BINARY_ASSERT(assert_type, lhs, rhs, comp)                                         \
+    do {                                                                                           \
+        doctest::detail::ResultBuilder _DOCTEST_RB(doctest::detail::assertType::assert_type,       \
+                                                   __FILE__, __LINE__, #lhs ", " #rhs);            \
+        DOCTEST_WRAP_IN_TRY(                                                                       \
+                _DOCTEST_RB.binary_assert<doctest::detail::binaryAssertComparison::comp>(lhs,      \
+                                                                                         rhs))     \
+        DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB);                                                 \
+    } while((void)0, 0)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_UNARY_ASSERT(assert_type, expr)                                                    \
+    do {                                                                                           \
+        doctest::detail::ResultBuilder _DOCTEST_RB(                                                \
+                doctest::detail::assertType::assert_type, __FILE__, __LINE__,                      \
+                DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)));                               \
+        DOCTEST_WRAP_IN_TRY(_DOCTEST_RB.unary_assert(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)))         \
+        DOCTEST_ASSERT_LOG_AND_REACT(_DOCTEST_RB);                                                 \
+    } while((void)0, 0)
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_EQ(...) DOCTEST_BINARY_ASSERT(DT_WARN_EQ, (__VA_ARGS__), eq)
+#define DOCTEST_CHECK_EQ(...) DOCTEST_BINARY_ASSERT(DT_CHECK_EQ, (__VA_ARGS__), eq)
+#define DOCTEST_REQUIRE_EQ(...) DOCTEST_BINARY_ASSERT(DT_REQUIRE_EQ, (__VA_ARGS__), eq)
+#define DOCTEST_WARN_NE(...) DOCTEST_BINARY_ASSERT(DT_WARN_NE, (__VA_ARGS__), ne)
+#define DOCTEST_CHECK_NE(...) DOCTEST_BINARY_ASSERT(DT_CHECK_NE, (__VA_ARGS__), ne)
+#define DOCTEST_REQUIRE_NE(...) DOCTEST_BINARY_ASSERT(DT_REQUIRE_NE, (__VA_ARGS__), ne)
+#define DOCTEST_WARN_GT(...) DOCTEST_BINARY_ASSERT(DT_WARN_GT, (__VA_ARGS__), gt)
+#define DOCTEST_CHECK_GT(...) DOCTEST_BINARY_ASSERT(DT_CHECK_GT, (__VA_ARGS__), gt)
+#define DOCTEST_REQUIRE_GT(...) DOCTEST_BINARY_ASSERT(DT_REQUIRE_GT, (__VA_ARGS__), gt)
+#define DOCTEST_WARN_LT(...) DOCTEST_BINARY_ASSERT(DT_WARN_LT, (__VA_ARGS__), lt)
+#define DOCTEST_CHECK_LT(...) DOCTEST_BINARY_ASSERT(DT_CHECK_LT, (__VA_ARGS__), lt)
+#define DOCTEST_REQUIRE_LT(...) DOCTEST_BINARY_ASSERT(DT_REQUIRE_LT, (__VA_ARGS__), lt)
+#define DOCTEST_WARN_GE(...) DOCTEST_BINARY_ASSERT(DT_WARN_GE, (__VA_ARGS__), ge)
+#define DOCTEST_CHECK_GE(...) DOCTEST_BINARY_ASSERT(DT_CHECK_GE, (__VA_ARGS__), ge)
+#define DOCTEST_REQUIRE_GE(...) DOCTEST_BINARY_ASSERT(DT_REQUIRE_GE, (__VA_ARGS__), ge)
+#define DOCTEST_WARN_LE(...) DOCTEST_BINARY_ASSERT(DT_WARN_LE, (__VA_ARGS__), le)
+#define DOCTEST_CHECK_LE(...) DOCTEST_BINARY_ASSERT(DT_CHECK_LE, (__VA_ARGS__), le)
+#define DOCTEST_REQUIRE_LE(...) DOCTEST_BINARY_ASSERT(DT_REQUIRE_LE, (__VA_ARGS__), le)
+
+#define DOCTEST_WARN_UNARY(...) DOCTEST_UNARY_ASSERT(DT_WARN_UNARY, (__VA_ARGS__))
+#define DOCTEST_CHECK_UNARY(...) DOCTEST_UNARY_ASSERT(DT_CHECK_UNARY, (__VA_ARGS__))
+#define DOCTEST_REQUIRE_UNARY(...) DOCTEST_UNARY_ASSERT(DT_REQUIRE_UNARY, (__VA_ARGS__))
+#define DOCTEST_WARN_UNARY_FALSE(...) DOCTEST_UNARY_ASSERT(DT_WARN_UNARY_FALSE, (__VA_ARGS__))
+#define DOCTEST_CHECK_UNARY_FALSE(...) DOCTEST_UNARY_ASSERT(DT_CHECK_UNARY_FALSE, (__VA_ARGS__))
+#define DOCTEST_REQUIRE_UNARY_FALSE(...) DOCTEST_UNARY_ASSERT(DT_REQUIRE_UNARY_FALSE, (__VA_ARGS__))
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_EQ(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_WARN_EQ, lhs, rhs, eq)
+#define DOCTEST_CHECK_EQ(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_CHECK_EQ, lhs, rhs, eq)
+#define DOCTEST_REQUIRE_EQ(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_REQUIRE_EQ, lhs, rhs, eq)
+#define DOCTEST_WARN_NE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_WARN_NE, lhs, rhs, ne)
+#define DOCTEST_CHECK_NE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_CHECK_NE, lhs, rhs, ne)
+#define DOCTEST_REQUIRE_NE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_REQUIRE_NE, lhs, rhs, ne)
+#define DOCTEST_WARN_GT(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_WARN_GT, lhs, rhs, gt)
+#define DOCTEST_CHECK_GT(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_CHECK_GT, lhs, rhs, gt)
+#define DOCTEST_REQUIRE_GT(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_REQUIRE_GT, lhs, rhs, gt)
+#define DOCTEST_WARN_LT(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_WARN_LT, lhs, rhs, lt)
+#define DOCTEST_CHECK_LT(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_CHECK_LT, lhs, rhs, lt)
+#define DOCTEST_REQUIRE_LT(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_REQUIRE_LT, lhs, rhs, lt)
+#define DOCTEST_WARN_GE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_WARN_GE, lhs, rhs, ge)
+#define DOCTEST_CHECK_GE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_CHECK_GE, lhs, rhs, ge)
+#define DOCTEST_REQUIRE_GE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_REQUIRE_GE, lhs, rhs, ge)
+#define DOCTEST_WARN_LE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_WARN_LE, lhs, rhs, le)
+#define DOCTEST_CHECK_LE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_CHECK_LE, lhs, rhs, le)
+#define DOCTEST_REQUIRE_LE(lhs, rhs) DOCTEST_BINARY_ASSERT(DT_REQUIRE_LE, lhs, rhs, le)
+
+#define DOCTEST_WARN_UNARY(v) DOCTEST_UNARY_ASSERT(DT_WARN_UNARY, v)
+#define DOCTEST_CHECK_UNARY(v) DOCTEST_UNARY_ASSERT(DT_CHECK_UNARY, v)
+#define DOCTEST_REQUIRE_UNARY(v) DOCTEST_UNARY_ASSERT(DT_REQUIRE_UNARY, v)
+#define DOCTEST_WARN_UNARY_FALSE(v) DOCTEST_UNARY_ASSERT(DT_WARN_UNARY_FALSE, v)
+#define DOCTEST_CHECK_UNARY_FALSE(v) DOCTEST_UNARY_ASSERT(DT_CHECK_UNARY_FALSE, v)
+#define DOCTEST_REQUIRE_UNARY_FALSE(v) DOCTEST_UNARY_ASSERT(DT_REQUIRE_UNARY_FALSE, v)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#ifndef DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_FAST_BINARY_ASSERT(assert_type, expr, comparison)                                  \
+    do {                                                                                           \
+        int _DOCTEST_FAST_RES = doctest::detail::fast_binary_assert<                               \
+                doctest::detail::binaryAssertComparison::comparison>(                              \
+                doctest::detail::assertType::assert_type, __FILE__, __LINE__,                      \
+                DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)),                                \
+                DOCTEST_HANDLE_BRACED_VA_ARGS(expr));                                              \
+        if(_DOCTEST_FAST_RES & doctest::detail::assertAction::dbgbreak)                            \
+            DOCTEST_BREAK_INTO_DEBUGGER();                                                         \
+        doctest::detail::fastAssertThrowIfFlagSet(_DOCTEST_FAST_RES);                              \
+    } while((void)0, 0)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_FAST_BINARY_ASSERT(assert_type, lhs, rhs, comparison)                              \
+    do {                                                                                           \
+        int _DOCTEST_FAST_RES = doctest::detail::fast_binary_assert<                               \
+                doctest::detail::binaryAssertComparison::comparison>(                              \
+                doctest::detail::assertType::assert_type, __FILE__, __LINE__, #lhs ", " #rhs, lhs, \
+                rhs);                                                                              \
+        if(_DOCTEST_FAST_RES & doctest::detail::assertAction::dbgbreak)                            \
+            DOCTEST_BREAK_INTO_DEBUGGER();                                                         \
+        doctest::detail::fastAssertThrowIfFlagSet(_DOCTEST_FAST_RES);                              \
+    } while((void)0, 0)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_FAST_UNARY_ASSERT(assert_type, expr)                                               \
+    do {                                                                                           \
+        int _DOCTEST_FAST_RES = doctest::detail::fast_unary_assert(                                \
+                doctest::detail::assertType::assert_type, __FILE__, __LINE__,                      \
+                DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)),                                \
+                DOCTEST_HANDLE_BRACED_VA_ARGS(expr));                                              \
+        if(_DOCTEST_FAST_RES & doctest::detail::assertAction::dbgbreak)                            \
+            DOCTEST_BREAK_INTO_DEBUGGER();                                                         \
+        doctest::detail::fastAssertThrowIfFlagSet(_DOCTEST_FAST_RES);                              \
+    } while((void)0, 0)
+
+#else // DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_FAST_BINARY_ASSERT(assert_type, expr, comparison)                                  \
+    doctest::detail::fast_binary_assert<doctest::detail::binaryAssertComparison::comparison>(      \
+            doctest::detail::assertType::assert_type, __FILE__, __LINE__,                          \
+            DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)),                                    \
+            DOCTEST_HANDLE_BRACED_VA_ARGS(expr))
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_FAST_BINARY_ASSERT(assert_type, lhs, rhs, comparison)                              \
+    doctest::detail::fast_binary_assert<doctest::detail::binaryAssertComparison::comparison>(      \
+            doctest::detail::assertType::assert_type, __FILE__, __LINE__, #lhs ", " #rhs, lhs,     \
+            rhs)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_FAST_UNARY_ASSERT(assert_type, expr)                                               \
+    doctest::detail::fast_unary_assert(doctest::detail::assertType::assert_type, __FILE__,         \
+                                       __LINE__,                                                   \
+                                       DOCTEST_TOSTR(DOCTEST_HANDLE_BRACED_VA_ARGS(expr)),         \
+                                       DOCTEST_HANDLE_BRACED_VA_ARGS(expr))
+
+#endif // DOCTEST_CONFIG_SUPER_FAST_ASSERTS
+
+// clang-format off
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_FAST_WARN_EQ(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_EQ, (__VA_ARGS__), eq)
+#define DOCTEST_FAST_CHECK_EQ(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_EQ, (__VA_ARGS__), eq)
+#define DOCTEST_FAST_REQUIRE_EQ(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_EQ, (__VA_ARGS__), eq)
+#define DOCTEST_FAST_WARN_NE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_NE, (__VA_ARGS__), ne)
+#define DOCTEST_FAST_CHECK_NE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_NE, (__VA_ARGS__), ne)
+#define DOCTEST_FAST_REQUIRE_NE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_NE, (__VA_ARGS__), ne)
+#define DOCTEST_FAST_WARN_GT(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_GT, (__VA_ARGS__), gt)
+#define DOCTEST_FAST_CHECK_GT(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_GT, (__VA_ARGS__), gt)
+#define DOCTEST_FAST_REQUIRE_GT(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_GT, (__VA_ARGS__), gt)
+#define DOCTEST_FAST_WARN_LT(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_LT, (__VA_ARGS__), lt)
+#define DOCTEST_FAST_CHECK_LT(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_LT, (__VA_ARGS__), lt)
+#define DOCTEST_FAST_REQUIRE_LT(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_LT, (__VA_ARGS__), lt)
+#define DOCTEST_FAST_WARN_GE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_GE, (__VA_ARGS__), ge)
+#define DOCTEST_FAST_CHECK_GE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_GE, (__VA_ARGS__), ge)
+#define DOCTEST_FAST_REQUIRE_GE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_GE, (__VA_ARGS__), ge)
+#define DOCTEST_FAST_WARN_LE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_LE, (__VA_ARGS__), le)
+#define DOCTEST_FAST_CHECK_LE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_LE, (__VA_ARGS__), le)
+#define DOCTEST_FAST_REQUIRE_LE(...) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_LE, (__VA_ARGS__), le)
+
+#define DOCTEST_FAST_WARN_UNARY(...) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_WARN_UNARY, (__VA_ARGS__))
+#define DOCTEST_FAST_CHECK_UNARY(...) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_CHECK_UNARY, (__VA_ARGS__))
+#define DOCTEST_FAST_REQUIRE_UNARY(...) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_REQUIRE_UNARY, (__VA_ARGS__))
+#define DOCTEST_FAST_WARN_UNARY_FALSE(...) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_WARN_UNARY_FALSE, (__VA_ARGS__))
+#define DOCTEST_FAST_CHECK_UNARY_FALSE(...) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_CHECK_UNARY_FALSE, (__VA_ARGS__))
+#define DOCTEST_FAST_REQUIRE_UNARY_FALSE(...) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_REQUIRE_UNARY_FALSE, (__VA_ARGS__))
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_FAST_WARN_EQ(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_EQ, l, r, eq)
+#define DOCTEST_FAST_CHECK_EQ(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_EQ, l, r, eq)
+#define DOCTEST_FAST_REQUIRE_EQ(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_EQ, l, r, eq)
+#define DOCTEST_FAST_WARN_NE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_NE, l, r, ne)
+#define DOCTEST_FAST_CHECK_NE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_NE, l, r, ne)
+#define DOCTEST_FAST_REQUIRE_NE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_NE, l, r, ne)
+#define DOCTEST_FAST_WARN_GT(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_GT, l, r, gt)
+#define DOCTEST_FAST_CHECK_GT(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_GT, l, r, gt)
+#define DOCTEST_FAST_REQUIRE_GT(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_GT, l, r, gt)
+#define DOCTEST_FAST_WARN_LT(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_LT, l, r, lt)
+#define DOCTEST_FAST_CHECK_LT(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_LT, l, r, lt)
+#define DOCTEST_FAST_REQUIRE_LT(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_LT, l, r, lt)
+#define DOCTEST_FAST_WARN_GE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_GE, l, r, ge)
+#define DOCTEST_FAST_CHECK_GE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_GE, l, r, ge)
+#define DOCTEST_FAST_REQUIRE_GE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_GE, l, r, ge)
+#define DOCTEST_FAST_WARN_LE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_WARN_LE, l, r, le)
+#define DOCTEST_FAST_CHECK_LE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_CHECK_LE, l, r, le)
+#define DOCTEST_FAST_REQUIRE_LE(l, r) DOCTEST_FAST_BINARY_ASSERT(DT_FAST_REQUIRE_LE, l, r, le)
+
+#define DOCTEST_FAST_WARN_UNARY(v) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_WARN_UNARY, v)
+#define DOCTEST_FAST_CHECK_UNARY(v) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_CHECK_UNARY, v)
+#define DOCTEST_FAST_REQUIRE_UNARY(v) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_REQUIRE_UNARY, v)
+#define DOCTEST_FAST_WARN_UNARY_FALSE(v) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_WARN_UNARY_FALSE, v)
+#define DOCTEST_FAST_CHECK_UNARY_FALSE(v) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_CHECK_UNARY_FALSE, v)
+#define DOCTEST_FAST_REQUIRE_UNARY_FALSE(v) DOCTEST_FAST_UNARY_ASSERT(DT_FAST_REQUIRE_UNARY_FALSE, v)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+// clang-format on
+
+#ifdef DOCTEST_CONFIG_NO_EXCEPTIONS
+
+#undef DOCTEST_WARN_THROWS
+#undef DOCTEST_CHECK_THROWS
+#undef DOCTEST_REQUIRE_THROWS
+#undef DOCTEST_WARN_THROWS_AS
+#undef DOCTEST_CHECK_THROWS_AS
+#undef DOCTEST_REQUIRE_THROWS_AS
+#undef DOCTEST_WARN_NOTHROW
+#undef DOCTEST_CHECK_NOTHROW
+#undef DOCTEST_REQUIRE_NOTHROW
+
+#undef DOCTEST_WARN_THROWS_MESSAGE
+#undef DOCTEST_CHECK_THROWS_MESSAGE
+#undef DOCTEST_REQUIRE_THROWS_MESSAGE
+#undef DOCTEST_WARN_THROWS_AS_MESSAGE
+#undef DOCTEST_CHECK_THROWS_AS_MESSAGE
+#undef DOCTEST_REQUIRE_THROWS_AS_MESSAGE
+#undef DOCTEST_WARN_NOTHROW_MESSAGE
+#undef DOCTEST_CHECK_NOTHROW_MESSAGE
+#undef DOCTEST_REQUIRE_NOTHROW_MESSAGE
+
+#ifdef DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS
+
+#define DOCTEST_WARN_THROWS(expr) ((void)0)
+#define DOCTEST_CHECK_THROWS(expr) ((void)0)
+#define DOCTEST_REQUIRE_THROWS(expr) ((void)0)
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_THROWS_AS(expr, ...) ((void)0)
+#define DOCTEST_CHECK_THROWS_AS(expr, ...) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_AS(expr, ...) ((void)0)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_THROWS_AS(expr, ex) ((void)0)
+#define DOCTEST_CHECK_THROWS_AS(expr, ex) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_AS(expr, ex) ((void)0)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_NOTHROW(expr) ((void)0)
+#define DOCTEST_CHECK_NOTHROW(expr) ((void)0)
+#define DOCTEST_REQUIRE_NOTHROW(expr) ((void)0)
+
+#define DOCTEST_WARN_THROWS_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_CHECK_THROWS_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_WARN_THROWS_AS_MESSAGE(expr, ex, msg) ((void)0)
+#define DOCTEST_CHECK_THROWS_AS_MESSAGE(expr, ex, msg) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_AS_MESSAGE(expr, ex, msg) ((void)0)
+#define DOCTEST_WARN_NOTHROW_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_CHECK_NOTHROW_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_REQUIRE_NOTHROW_MESSAGE(expr, msg) ((void)0)
+
+#else // DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS
+
+#undef DOCTEST_REQUIRE
+#undef DOCTEST_REQUIRE_FALSE
+#undef DOCTEST_REQUIRE_MESSAGE
+#undef DOCTEST_REQUIRE_FALSE_MESSAGE
+#undef DOCTEST_REQUIRE_EQ
+#undef DOCTEST_REQUIRE_NE
+#undef DOCTEST_REQUIRE_GT
+#undef DOCTEST_REQUIRE_LT
+#undef DOCTEST_REQUIRE_GE
+#undef DOCTEST_REQUIRE_LE
+#undef DOCTEST_REQUIRE_UNARY
+#undef DOCTEST_REQUIRE_UNARY_FALSE
+#undef DOCTEST_FAST_REQUIRE_EQ
+#undef DOCTEST_FAST_REQUIRE_NE
+#undef DOCTEST_FAST_REQUIRE_GT
+#undef DOCTEST_FAST_REQUIRE_LT
+#undef DOCTEST_FAST_REQUIRE_GE
+#undef DOCTEST_FAST_REQUIRE_LE
+#undef DOCTEST_FAST_REQUIRE_UNARY
+#undef DOCTEST_FAST_REQUIRE_UNARY_FALSE
+
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS
+
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+
+// =================================================================================================
+// == WHAT FOLLOWS IS VERSIONS OF THE MACROS THAT DO NOT DO ANY REGISTERING!                      ==
+// == THIS CAN BE ENABLED BY DEFINING DOCTEST_CONFIG_DISABLE GLOBALLY!                            ==
+// =================================================================================================
+#else // DOCTEST_CONFIG_DISABLE
+
+#define DOCTEST_IMPLEMENT_FIXTURE(der, base, func, name)                                           \
+    namespace                                                                                      \
+    {                                                                                              \
+        template <typename T>                                                                      \
+        struct der : base                                                                          \
+        { void f(); };                                                                             \
+    }                                                                                              \
+    template <typename T>                                                                          \
+    inline void der<T>::f()
+
+#define DOCTEST_CREATE_AND_REGISTER_FUNCTION(f, name)                                              \
+    template <typename T>                                                                          \
+    static inline void f()
+
+// for registering tests
+#define DOCTEST_TEST_CASE(name)                                                                    \
+    DOCTEST_CREATE_AND_REGISTER_FUNCTION(DOCTEST_ANONYMOUS(_DOCTEST_ANON_FUNC_), name)
+
+// for registering tests with a fixture
+#define DOCTEST_TEST_CASE_FIXTURE(x, name)                                                         \
+    DOCTEST_IMPLEMENT_FIXTURE(DOCTEST_ANONYMOUS(_DOCTEST_ANON_CLASS_), x,                          \
+                              DOCTEST_ANONYMOUS(_DOCTEST_ANON_FUNC_), name)
+
+// for converting types to strings without the <typeinfo> header and demangling
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TYPE_TO_STRING(...) typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+#define DOCTEST_TYPE_TO_STRING_IMPL(...)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_TYPE_TO_STRING(x) typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+#define DOCTEST_TYPE_TO_STRING_IMPL(x)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+// for typed tests
+#define DOCTEST_TEST_CASE_TEMPLATE(name, type, types)                                              \
+    template <typename type>                                                                       \
+    inline void DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_)()
+
+#define DOCTEST_TEST_CASE_TEMPLATE_DEFINE(name, type, id)                                          \
+    template <typename type>                                                                       \
+    inline void DOCTEST_ANONYMOUS(_DOCTEST_ANON_TMP_)()
+
+#define DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE(id, types)                                          \
+    typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+
+// for subcases
+#define DOCTEST_SUBCASE(name)
+
+// for a testsuite block
+#define DOCTEST_TEST_SUITE(name) namespace
+
+// for starting a testsuite block
+#define DOCTEST_TEST_SUITE_BEGIN(name) typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+
+// for ending a testsuite block
+#define DOCTEST_TEST_SUITE_END typedef int DOCTEST_ANONYMOUS(_DOCTEST_ANON_FOR_SEMICOLON_)
+
+#define DOCTEST_REGISTER_EXCEPTION_TRANSLATOR(signature)                                           \
+    template <typename T>                                                                          \
+    static inline doctest::String DOCTEST_ANONYMOUS(_DOCTEST_ANON_TRANSLATOR_)(signature)
+
+#define DOCTEST_INFO(x) ((void)0)
+#define DOCTEST_CAPTURE(x) ((void)0)
+#define DOCTEST_ADD_MESSAGE_AT(file, line, x) ((void)0)
+#define DOCTEST_ADD_FAIL_CHECK_AT(file, line, x) ((void)0)
+#define DOCTEST_ADD_FAIL_AT(file, line, x) ((void)0)
+#define DOCTEST_MESSAGE(x) ((void)0)
+#define DOCTEST_FAIL_CHECK(x) ((void)0)
+#define DOCTEST_FAIL(x) ((void)0)
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN(...) ((void)0)
+#define DOCTEST_CHECK(...) ((void)0)
+#define DOCTEST_REQUIRE(...) ((void)0)
+#define DOCTEST_WARN_FALSE(...) ((void)0)
+#define DOCTEST_CHECK_FALSE(...) ((void)0)
+#define DOCTEST_REQUIRE_FALSE(...) ((void)0)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN(expr) ((void)0)
+#define DOCTEST_CHECK(expr) ((void)0)
+#define DOCTEST_REQUIRE(expr) ((void)0)
+#define DOCTEST_WARN_FALSE(expr) ((void)0)
+#define DOCTEST_CHECK_FALSE(expr) ((void)0)
+#define DOCTEST_REQUIRE_FALSE(expr) ((void)0)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_WARN_MESSAGE(cond, msg) ((void)0)
+#define DOCTEST_CHECK_MESSAGE(cond, msg) ((void)0)
+#define DOCTEST_REQUIRE_MESSAGE(cond, msg) ((void)0)
+#define DOCTEST_WARN_FALSE_MESSAGE(cond, msg) ((void)0)
+#define DOCTEST_CHECK_FALSE_MESSAGE(cond, msg) ((void)0)
+#define DOCTEST_REQUIRE_FALSE_MESSAGE(cond, msg) ((void)0)
+
+#define DOCTEST_WARN_THROWS(expr) ((void)0)
+#define DOCTEST_CHECK_THROWS(expr) ((void)0)
+#define DOCTEST_REQUIRE_THROWS(expr) ((void)0)
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_THROWS_AS(expr, ...) ((void)0)
+#define DOCTEST_CHECK_THROWS_AS(expr, ...) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_AS(expr, ...) ((void)0)
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_THROWS_AS(expr, ex) ((void)0)
+#define DOCTEST_CHECK_THROWS_AS(expr, ex) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_AS(expr, ex) ((void)0)
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+#define DOCTEST_WARN_NOTHROW(expr) ((void)0)
+#define DOCTEST_CHECK_NOTHROW(expr) ((void)0)
+#define DOCTEST_REQUIRE_NOTHROW(expr) ((void)0)
+
+#define DOCTEST_WARN_THROWS_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_CHECK_THROWS_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_WARN_THROWS_AS_MESSAGE(expr, ex, msg) ((void)0)
+#define DOCTEST_CHECK_THROWS_AS_MESSAGE(expr, ex, msg) ((void)0)
+#define DOCTEST_REQUIRE_THROWS_AS_MESSAGE(expr, ex, msg) ((void)0)
+#define DOCTEST_WARN_NOTHROW_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_CHECK_NOTHROW_MESSAGE(expr, msg) ((void)0)
+#define DOCTEST_REQUIRE_NOTHROW_MESSAGE(expr, msg) ((void)0)
+
+#ifdef DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_WARN_EQ(...) ((void)0)
+#define DOCTEST_CHECK_EQ(...) ((void)0)
+#define DOCTEST_REQUIRE_EQ(...) ((void)0)
+#define DOCTEST_WARN_NE(...) ((void)0)
+#define DOCTEST_CHECK_NE(...) ((void)0)
+#define DOCTEST_REQUIRE_NE(...) ((void)0)
+#define DOCTEST_WARN_GT(...) ((void)0)
+#define DOCTEST_CHECK_GT(...) ((void)0)
+#define DOCTEST_REQUIRE_GT(...) ((void)0)
+#define DOCTEST_WARN_LT(...) ((void)0)
+#define DOCTEST_CHECK_LT(...) ((void)0)
+#define DOCTEST_REQUIRE_LT(...) ((void)0)
+#define DOCTEST_WARN_GE(...) ((void)0)
+#define DOCTEST_CHECK_GE(...) ((void)0)
+#define DOCTEST_REQUIRE_GE(...) ((void)0)
+#define DOCTEST_WARN_LE(...) ((void)0)
+#define DOCTEST_CHECK_LE(...) ((void)0)
+#define DOCTEST_REQUIRE_LE(...) ((void)0)
+
+#define DOCTEST_WARN_UNARY(...) ((void)0)
+#define DOCTEST_CHECK_UNARY(...) ((void)0)
+#define DOCTEST_REQUIRE_UNARY(...) ((void)0)
+#define DOCTEST_WARN_UNARY_FALSE(...) ((void)0)
+#define DOCTEST_CHECK_UNARY_FALSE(...) ((void)0)
+#define DOCTEST_REQUIRE_UNARY_FALSE(...) ((void)0)
+
+#define DOCTEST_FAST_WARN_EQ(...) ((void)0)
+#define DOCTEST_FAST_CHECK_EQ(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_EQ(...) ((void)0)
+#define DOCTEST_FAST_WARN_NE(...) ((void)0)
+#define DOCTEST_FAST_CHECK_NE(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_NE(...) ((void)0)
+#define DOCTEST_FAST_WARN_GT(...) ((void)0)
+#define DOCTEST_FAST_CHECK_GT(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_GT(...) ((void)0)
+#define DOCTEST_FAST_WARN_LT(...) ((void)0)
+#define DOCTEST_FAST_CHECK_LT(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_LT(...) ((void)0)
+#define DOCTEST_FAST_WARN_GE(...) ((void)0)
+#define DOCTEST_FAST_CHECK_GE(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_GE(...) ((void)0)
+#define DOCTEST_FAST_WARN_LE(...) ((void)0)
+#define DOCTEST_FAST_CHECK_LE(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_LE(...) ((void)0)
+
+#define DOCTEST_FAST_WARN_UNARY(...) ((void)0)
+#define DOCTEST_FAST_CHECK_UNARY(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_UNARY(...) ((void)0)
+#define DOCTEST_FAST_WARN_UNARY_FALSE(...) ((void)0)
+#define DOCTEST_FAST_CHECK_UNARY_FALSE(...) ((void)0)
+#define DOCTEST_FAST_REQUIRE_UNARY_FALSE(...) ((void)0)
+
+#else // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#define DOCTEST_WARN_EQ(lhs, rhs) ((void)0)
+#define DOCTEST_CHECK_EQ(lhs, rhs) ((void)0)
+#define DOCTEST_REQUIRE_EQ(lhs, rhs) ((void)0)
+#define DOCTEST_WARN_NE(lhs, rhs) ((void)0)
+#define DOCTEST_CHECK_NE(lhs, rhs) ((void)0)
+#define DOCTEST_REQUIRE_NE(lhs, rhs) ((void)0)
+#define DOCTEST_WARN_GT(lhs, rhs) ((void)0)
+#define DOCTEST_CHECK_GT(lhs, rhs) ((void)0)
+#define DOCTEST_REQUIRE_GT(lhs, rhs) ((void)0)
+#define DOCTEST_WARN_LT(lhs, rhs) ((void)0)
+#define DOCTEST_CHECK_LT(lhs, rhs) ((void)0)
+#define DOCTEST_REQUIRE_LT(lhs, rhs) ((void)0)
+#define DOCTEST_WARN_GE(lhs, rhs) ((void)0)
+#define DOCTEST_CHECK_GE(lhs, rhs) ((void)0)
+#define DOCTEST_REQUIRE_GE(lhs, rhs) ((void)0)
+#define DOCTEST_WARN_LE(lhs, rhs) ((void)0)
+#define DOCTEST_CHECK_LE(lhs, rhs) ((void)0)
+#define DOCTEST_REQUIRE_LE(lhs, rhs) ((void)0)
+
+#define DOCTEST_WARN_UNARY(val) ((void)0)
+#define DOCTEST_CHECK_UNARY(val) ((void)0)
+#define DOCTEST_REQUIRE_UNARY(val) ((void)0)
+#define DOCTEST_WARN_UNARY_FALSE(val) ((void)0)
+#define DOCTEST_CHECK_UNARY_FALSE(val) ((void)0)
+#define DOCTEST_REQUIRE_UNARY_FALSE(val) ((void)0)
+
+#define DOCTEST_FAST_WARN_EQ(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_CHECK_EQ(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_REQUIRE_EQ(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_WARN_NE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_CHECK_NE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_REQUIRE_NE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_WARN_GT(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_CHECK_GT(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_REQUIRE_GT(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_WARN_LT(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_CHECK_LT(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_REQUIRE_LT(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_WARN_GE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_CHECK_GE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_REQUIRE_GE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_WARN_LE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_CHECK_LE(lhs, rhs) ((void)0)
+#define DOCTEST_FAST_REQUIRE_LE(lhs, rhs) ((void)0)
+
+#define DOCTEST_FAST_WARN_UNARY(val) ((void)0)
+#define DOCTEST_FAST_CHECK_UNARY(val) ((void)0)
+#define DOCTEST_FAST_REQUIRE_UNARY(val) ((void)0)
+#define DOCTEST_FAST_WARN_UNARY_FALSE(val) ((void)0)
+#define DOCTEST_FAST_CHECK_UNARY_FALSE(val) ((void)0)
+#define DOCTEST_FAST_REQUIRE_UNARY_FALSE(val) ((void)0)
+
+#endif // DOCTEST_CONFIG_WITH_VARIADIC_MACROS
+
+#endif // DOCTEST_CONFIG_DISABLE
+
+// BDD style macros
+// clang-format off
+#define DOCTEST_SCENARIO(name)  TEST_CASE("  Scenario: " name)
+#define DOCTEST_GIVEN(name)     SUBCASE("   Given: " name)
+#define DOCTEST_WHEN(name)      SUBCASE("    When: " name)
+#define DOCTEST_AND_WHEN(name)  SUBCASE("And when: " name)
+#define DOCTEST_THEN(name)      SUBCASE("    Then: " name)
+#define DOCTEST_AND_THEN(name)  SUBCASE("     And: " name)
+// clang-format on
+
+// == SHORT VERSIONS OF THE MACROS
+#if !defined(DOCTEST_CONFIG_NO_SHORT_MACRO_NAMES)
+
+#define TEST_CASE DOCTEST_TEST_CASE
+#define TEST_CASE_FIXTURE DOCTEST_TEST_CASE_FIXTURE
+#define TYPE_TO_STRING DOCTEST_TYPE_TO_STRING
+#define TEST_CASE_TEMPLATE DOCTEST_TEST_CASE_TEMPLATE
+#define TEST_CASE_TEMPLATE_DEFINE DOCTEST_TEST_CASE_TEMPLATE_DEFINE
+#define TEST_CASE_TEMPLATE_INSTANTIATE DOCTEST_TEST_CASE_TEMPLATE_INSTANTIATE
+#define SUBCASE DOCTEST_SUBCASE
+#define TEST_SUITE DOCTEST_TEST_SUITE
+#define TEST_SUITE_BEGIN DOCTEST_TEST_SUITE_BEGIN
+#define TEST_SUITE_END DOCTEST_TEST_SUITE_END
+#define REGISTER_EXCEPTION_TRANSLATOR DOCTEST_REGISTER_EXCEPTION_TRANSLATOR
+#define INFO DOCTEST_INFO
+#define CAPTURE DOCTEST_CAPTURE
+#define ADD_MESSAGE_AT DOCTEST_ADD_MESSAGE_AT
+#define ADD_FAIL_CHECK_AT DOCTEST_ADD_FAIL_CHECK_AT
+#define ADD_FAIL_AT DOCTEST_ADD_FAIL_AT
+#define MESSAGE DOCTEST_MESSAGE
+#define FAIL_CHECK DOCTEST_FAIL_CHECK
+#define FAIL DOCTEST_FAIL
+#define TO_LVALUE DOCTEST_TO_LVALUE
+
+#define WARN DOCTEST_WARN
+#define WARN_FALSE DOCTEST_WARN_FALSE
+#define WARN_THROWS DOCTEST_WARN_THROWS
+#define WARN_THROWS_AS DOCTEST_WARN_THROWS_AS
+#define WARN_NOTHROW DOCTEST_WARN_NOTHROW
+#define CHECK DOCTEST_CHECK
+#define CHECK_FALSE DOCTEST_CHECK_FALSE
+#define CHECK_THROWS DOCTEST_CHECK_THROWS
+#define CHECK_THROWS_AS DOCTEST_CHECK_THROWS_AS
+#define CHECK_NOTHROW DOCTEST_CHECK_NOTHROW
+#define REQUIRE DOCTEST_REQUIRE
+#define REQUIRE_FALSE DOCTEST_REQUIRE_FALSE
+#define REQUIRE_THROWS DOCTEST_REQUIRE_THROWS
+#define REQUIRE_THROWS_AS DOCTEST_REQUIRE_THROWS_AS
+#define REQUIRE_NOTHROW DOCTEST_REQUIRE_NOTHROW
+
+#define WARN_MESSAGE DOCTEST_WARN_MESSAGE
+#define WARN_FALSE_MESSAGE DOCTEST_WARN_FALSE_MESSAGE
+#define WARN_THROWS_MESSAGE DOCTEST_WARN_THROWS_MESSAGE
+#define WARN_THROWS_AS_MESSAGE DOCTEST_WARN_THROWS_AS_MESSAGE
+#define WARN_NOTHROW_MESSAGE DOCTEST_WARN_NOTHROW_MESSAGE
+#define CHECK_MESSAGE DOCTEST_CHECK_MESSAGE
+#define CHECK_FALSE_MESSAGE DOCTEST_CHECK_FALSE_MESSAGE
+#define CHECK_THROWS_MESSAGE DOCTEST_CHECK_THROWS_MESSAGE
+#define CHECK_THROWS_AS_MESSAGE DOCTEST_CHECK_THROWS_AS_MESSAGE
+#define CHECK_NOTHROW_MESSAGE DOCTEST_CHECK_NOTHROW_MESSAGE
+#define REQUIRE_MESSAGE DOCTEST_REQUIRE_MESSAGE
+#define REQUIRE_FALSE_MESSAGE DOCTEST_REQUIRE_FALSE_MESSAGE
+#define REQUIRE_THROWS_MESSAGE DOCTEST_REQUIRE_THROWS_MESSAGE
+#define REQUIRE_THROWS_AS_MESSAGE DOCTEST_REQUIRE_THROWS_AS_MESSAGE
+#define REQUIRE_NOTHROW_MESSAGE DOCTEST_REQUIRE_NOTHROW_MESSAGE
+
+#define SCENARIO DOCTEST_SCENARIO
+#define GIVEN DOCTEST_GIVEN
+#define WHEN DOCTEST_WHEN
+#define AND_WHEN DOCTEST_AND_WHEN
+#define THEN DOCTEST_THEN
+#define AND_THEN DOCTEST_AND_THEN
+
+#define WARN_EQ DOCTEST_WARN_EQ
+#define CHECK_EQ DOCTEST_CHECK_EQ
+#define REQUIRE_EQ DOCTEST_REQUIRE_EQ
+#define WARN_NE DOCTEST_WARN_NE
+#define CHECK_NE DOCTEST_CHECK_NE
+#define REQUIRE_NE DOCTEST_REQUIRE_NE
+#define WARN_GT DOCTEST_WARN_GT
+#define CHECK_GT DOCTEST_CHECK_GT
+#define REQUIRE_GT DOCTEST_REQUIRE_GT
+#define WARN_LT DOCTEST_WARN_LT
+#define CHECK_LT DOCTEST_CHECK_LT
+#define REQUIRE_LT DOCTEST_REQUIRE_LT
+#define WARN_GE DOCTEST_WARN_GE
+#define CHECK_GE DOCTEST_CHECK_GE
+#define REQUIRE_GE DOCTEST_REQUIRE_GE
+#define WARN_LE DOCTEST_WARN_LE
+#define CHECK_LE DOCTEST_CHECK_LE
+#define REQUIRE_LE DOCTEST_REQUIRE_LE
+#define WARN_UNARY DOCTEST_WARN_UNARY
+#define CHECK_UNARY DOCTEST_CHECK_UNARY
+#define REQUIRE_UNARY DOCTEST_REQUIRE_UNARY
+#define WARN_UNARY_FALSE DOCTEST_WARN_UNARY_FALSE
+#define CHECK_UNARY_FALSE DOCTEST_CHECK_UNARY_FALSE
+#define REQUIRE_UNARY_FALSE DOCTEST_REQUIRE_UNARY_FALSE
+
+#define FAST_WARN_EQ DOCTEST_FAST_WARN_EQ
+#define FAST_CHECK_EQ DOCTEST_FAST_CHECK_EQ
+#define FAST_REQUIRE_EQ DOCTEST_FAST_REQUIRE_EQ
+#define FAST_WARN_NE DOCTEST_FAST_WARN_NE
+#define FAST_CHECK_NE DOCTEST_FAST_CHECK_NE
+#define FAST_REQUIRE_NE DOCTEST_FAST_REQUIRE_NE
+#define FAST_WARN_GT DOCTEST_FAST_WARN_GT
+#define FAST_CHECK_GT DOCTEST_FAST_CHECK_GT
+#define FAST_REQUIRE_GT DOCTEST_FAST_REQUIRE_GT
+#define FAST_WARN_LT DOCTEST_FAST_WARN_LT
+#define FAST_CHECK_LT DOCTEST_FAST_CHECK_LT
+#define FAST_REQUIRE_LT DOCTEST_FAST_REQUIRE_LT
+#define FAST_WARN_GE DOCTEST_FAST_WARN_GE
+#define FAST_CHECK_GE DOCTEST_FAST_CHECK_GE
+#define FAST_REQUIRE_GE DOCTEST_FAST_REQUIRE_GE
+#define FAST_WARN_LE DOCTEST_FAST_WARN_LE
+#define FAST_CHECK_LE DOCTEST_FAST_CHECK_LE
+#define FAST_REQUIRE_LE DOCTEST_FAST_REQUIRE_LE
+#define FAST_WARN_UNARY DOCTEST_FAST_WARN_UNARY
+#define FAST_CHECK_UNARY DOCTEST_FAST_CHECK_UNARY
+#define FAST_REQUIRE_UNARY DOCTEST_FAST_REQUIRE_UNARY
+#define FAST_WARN_UNARY_FALSE DOCTEST_FAST_WARN_UNARY_FALSE
+#define FAST_CHECK_UNARY_FALSE DOCTEST_FAST_CHECK_UNARY_FALSE
+#define FAST_REQUIRE_UNARY_FALSE DOCTEST_FAST_REQUIRE_UNARY_FALSE
+
+#endif // DOCTEST_CONFIG_NO_SHORT_MACRO_NAMES
+
+// this is here to clear the 'current test suite' for the current translation unit - at the top
+DOCTEST_TEST_SUITE_END();
+
+// add stringification for primitive/fundamental types
+namespace doctest
+{
+namespace detail
+{
+    DOCTEST_TYPE_TO_STRING_IMPL(bool)
+    DOCTEST_TYPE_TO_STRING_IMPL(float)
+    DOCTEST_TYPE_TO_STRING_IMPL(double)
+    DOCTEST_TYPE_TO_STRING_IMPL(long double)
+    DOCTEST_TYPE_TO_STRING_IMPL(char)
+    DOCTEST_TYPE_TO_STRING_IMPL(signed char)
+    DOCTEST_TYPE_TO_STRING_IMPL(unsigned char)
+    DOCTEST_TYPE_TO_STRING_IMPL(wchar_t)
+    DOCTEST_TYPE_TO_STRING_IMPL(short int)
+    DOCTEST_TYPE_TO_STRING_IMPL(unsigned short int)
+    DOCTEST_TYPE_TO_STRING_IMPL(int)
+    DOCTEST_TYPE_TO_STRING_IMPL(unsigned int)
+    DOCTEST_TYPE_TO_STRING_IMPL(long int)
+    DOCTEST_TYPE_TO_STRING_IMPL(unsigned long int)
+#ifdef DOCTEST_CONFIG_WITH_LONG_LONG
+    DOCTEST_TYPE_TO_STRING_IMPL(long long int)
+    DOCTEST_TYPE_TO_STRING_IMPL(unsigned long long int)
+#endif // DOCTEST_CONFIG_WITH_LONG_LONG
+} // namespace detail
+} // namespace doctest
+
+#endif // DOCTEST_LIBRARY_INCLUDED
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif // __clang__
+
+#if defined(__GNUC__) && !defined(__clang__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic pop
+#endif // > gcc 4.6
+#endif // __GNUC__
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif // _MSC_VER
+
+#ifndef DOCTEST_SINGLE_HEADER
+#define DOCTEST_SINGLE_HEADER
+#endif // DOCTEST_SINGLE_HEADER
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-pragmas"
+#pragma clang diagnostic ignored "-Wpadded"
+#pragma clang diagnostic ignored "-Wglobal-constructors"
+#pragma clang diagnostic ignored "-Wexit-time-destructors"
+#pragma clang diagnostic ignored "-Wmissing-prototypes"
+#pragma clang diagnostic ignored "-Wsign-conversion"
+#pragma clang diagnostic ignored "-Wshorten-64-to-32"
+#pragma clang diagnostic ignored "-Wmissing-variable-declarations"
+#pragma clang diagnostic ignored "-Wswitch"
+#pragma clang diagnostic ignored "-Wswitch-enum"
+#pragma clang diagnostic ignored "-Wcovered-switch-default"
+#pragma clang diagnostic ignored "-Wmissing-noreturn"
+#pragma clang diagnostic ignored "-Wunused-local-typedef"
+#pragma clang diagnostic ignored "-Wdisabled-macro-expansion"
+#pragma clang diagnostic ignored "-Wmissing-braces"
+#pragma clang diagnostic ignored "-Wmissing-field-initializers"
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
+#pragma clang diagnostic ignored "-Wc++11-long-long"
+#endif // __clang__
+
+#if defined(__GNUC__) && !defined(__clang__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic push
+#endif // > gcc 4.6
+#pragma GCC diagnostic ignored "-Wunknown-pragmas"
+#pragma GCC diagnostic ignored "-Wconversion"
+#pragma GCC diagnostic ignored "-Weffc++"
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#pragma GCC diagnostic ignored "-Wstrict-overflow"
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+#pragma GCC diagnostic ignored "-Wmissing-braces"
+#pragma GCC diagnostic ignored "-Wmissing-declarations"
+#pragma GCC diagnostic ignored "-Winline"
+#pragma GCC diagnostic ignored "-Wswitch"
+#pragma GCC diagnostic ignored "-Wswitch-enum"
+#pragma GCC diagnostic ignored "-Wswitch-default"
+#pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations"
+#pragma GCC diagnostic ignored "-Wlong-long"
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
+#endif // > gcc 4.6
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 7)
+#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
+#endif // > gcc 4.7
+#if __GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ > 3)
+#pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif // > gcc 5.3
+#endif // __GNUC__
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4996) // The compiler encountered a deprecated declaration
+#pragma warning(disable : 4267) // 'var' : conversion from 'size_t' to 'type', possible loss of data
+#pragma warning(disable : 4706) // assignment within conditional expression
+#pragma warning(disable : 4512) // 'class' : assignment operator could not be generated
+#pragma warning(disable : 4127) // conditional expression is constant
+#pragma warning(disable : 4530) // C++ exception handler used, but unwind semantics are not enabled
+#pragma warning(disable : 4577) // 'noexcept' used with no exception handling mode specified
+#endif                          // _MSC_VER
+
+#if defined(DOCTEST_CONFIG_IMPLEMENT) || !defined(DOCTEST_SINGLE_HEADER)
+#ifndef DOCTEST_LIBRARY_IMPLEMENTATION
+#define DOCTEST_LIBRARY_IMPLEMENTATION
+
+#ifndef DOCTEST_SINGLE_HEADER
+#include "doctest_fwd.h"
+#endif // DOCTEST_SINGLE_HEADER
+
+#if defined(__clang__) && defined(DOCTEST_NO_CPP11_COMPAT)
+#pragma clang diagnostic ignored "-Wc++98-compat"
+#pragma clang diagnostic ignored "-Wc++98-compat-pedantic"
+#endif // __clang__ && DOCTEST_NO_CPP11_COMPAT
+
+// snprintf() not in the C++98 standard
+#ifdef _MSC_VER
+#define DOCTEST_SNPRINTF _snprintf
+#else
+#define DOCTEST_SNPRINTF std::snprintf
+#endif
+
+#define DOCTEST_LOG_START()                                                                        \
+    do {                                                                                           \
+        if(!contextState->hasLoggedCurrentTestStart) {                                             \
+            doctest::detail::logTestStart(*contextState->currentTest);                             \
+            contextState->hasLoggedCurrentTestStart = true;                                        \
+        }                                                                                          \
+    } while(false)
+
+// required includes - will go only in one translation unit!
+#include <ctime>
+#include <cmath>
+// borland (Embarcadero) compiler requires math.h and not cmath - https://github.com/onqtam/doctest/pull/37
+#ifdef __BORLANDC__
+#include <math.h>
+#endif // __BORLANDC__
+#include <new>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <limits>
+#include <utility>
+#include <sstream>
+#include <iomanip>
+#include <vector>
+#include <set>
+#include <exception>
+#include <stdexcept>
+#include <csignal>
+#include <cfloat>
+#ifndef _MSC_VER
+#include <stdint.h>
+#endif // _MSC_VER
+
+namespace doctest
+{
+namespace detail
+{
+    // lowers ascii letters
+    char tolower(const char c) { return (c >= 'A' && c <= 'Z') ? static_cast<char>(c + 32) : c; }
+
+    template <typename T>
+    T my_max(const T& lhs, const T& rhs) {
+        return lhs > rhs ? lhs : rhs;
+    }
+
+    // case insensitive strcmp
+    int stricmp(char const* a, char const* b) {
+        for(;; a++, b++) {
+            int d = tolower(*a) - tolower(*b);
+            if(d != 0 || !*a)
+                return d;
+        }
+    }
+
+    void my_memcpy(void* dest, const void* src, unsigned num) {
+        const char* csrc  = static_cast<const char*>(src);
+        char*       cdest = static_cast<char*>(dest);
+        for(unsigned i = 0; i < num; ++i)
+            cdest[i]   = csrc[i];
+    }
+
+    // not using std::strlen() because of valgrind errors when optimizations are turned on
+    // 'Invalid read of size 4' when the test suite len (with '\0') is not a multiple of 4
+    // for details see http://stackoverflow.com/questions/35671155
+    unsigned my_strlen(const char* in) {
+        const char* temp = in;
+        while(temp && *temp)
+            ++temp;
+        return unsigned(temp - in);
+    }
+
+    template <typename T>
+    String fpToString(T value, int precision) {
+        std::ostringstream oss;
+        oss << std::setprecision(precision) << std::fixed << value;
+        std::string d = oss.str();
+        size_t      i = d.find_last_not_of('0');
+        if(i != std::string::npos && i != d.size() - 1) {
+            if(d[i] == '.')
+                i++;
+            d = d.substr(0, i + 1);
+        }
+        return d.c_str();
+    }
+
+    struct Endianness
+    {
+        enum Arch
+        {
+            Big,
+            Little
+        };
+
+        static Arch which() {
+            union _
+            {
+                int  asInt;
+                char asChar[sizeof(int)];
+            } u;
+
+            u.asInt = 1;                                            // NOLINT
+            return (u.asChar[sizeof(int) - 1] == 1) ? Big : Little; // NOLINT
+        }
+    };
+
+    String rawMemoryToString(const void* object, unsigned size) {
+        // Reverse order for little endian architectures
+        int i = 0, end = static_cast<int>(size), inc = 1;
+        if(Endianness::which() == Endianness::Little) {
+            i   = end - 1;
+            end = inc = -1;
+        }
+
+        unsigned char const* bytes = static_cast<unsigned char const*>(object);
+        std::ostringstream   os;
+        os << "0x" << std::setfill('0') << std::hex;
+        for(; i != end; i += inc)
+            os << std::setw(2) << static_cast<unsigned>(bytes[i]);
+        return os.str().c_str();
+    }
+
+    std::ostream* createStream() { return new std::ostringstream(); }
+    String getStreamResult(std::ostream* in) {
+        return static_cast<std::ostringstream*>(in)->str().c_str(); // NOLINT
+    }
+    void freeStream(std::ostream* in) { delete in; }
+
+#ifndef DOCTEST_CONFIG_DISABLE
+
+    // this holds both parameters for the command line and runtime data for tests
+    struct ContextState : TestAccessibleContextState //!OCLINT too many fields
+    {
+        // == parameters from the command line
+
+        std::vector<std::vector<String> > filters;
+
+        String   order_by;  // how tests should be ordered
+        unsigned rand_seed; // the seed for rand ordering
+
+        unsigned first; // the first (matching) test to be executed
+        unsigned last;  // the last (matching) test to be executed
+
+        int  abort_after;           // stop tests after this many failed assertions
+        int  subcase_filter_levels; // apply the subcase filters for the first N levels
+        bool case_sensitive;        // if filtering should be case sensitive
+        bool exit;         // if the program should be exited after the tests are ran/whatever
+        bool duration;     // print the time duration of each test case
+        bool no_exitcode;  // if the framework should return 0 as the exitcode
+        bool no_run;       // to not run the tests at all (can be done with an "*" exclude)
+        bool no_version;   // to not print the version of the framework
+        bool no_colors;    // if output to the console should be colorized
+        bool force_colors; // forces the use of colors even when a tty cannot be detected
+        bool no_breaks;    // to not break into the debugger
+        bool no_skip;      // don't skip test cases which are marked to be skipped
+        bool no_path_in_filenames; // if the path to files should be removed from the output
+        bool no_line_numbers;      // if source code line numbers should be omitted from the output
+        bool no_skipped_summary;   // don't print "skipped" in the summary !!! UNDOCUMENTED !!!
+
+        bool help;             // to print the help
+        bool version;          // to print the version
+        bool count;            // if only the count of matching tests is to be retreived
+        bool list_test_cases;  // to list all tests matching the filters
+        bool list_test_suites; // to list all suites matching the filters
+
+        // == data for the tests being ran
+
+        unsigned        numTestsPassingFilters;
+        unsigned        numTestSuitesPassingFilters;
+        unsigned        numFailed;
+        const TestCase* currentTest;
+        bool            hasLoggedCurrentTestStart;
+        int             numAssertionsForCurrentTestcase;
+        int             numAssertions;
+        int             numFailedAssertionsForCurrentTestcase;
+        int             numFailedAssertions;
+        bool            hasCurrentTestFailed;
+
+        std::vector<IContextScope*> contexts;            // for logging with INFO() and friends
+        std::vector<std::string>    exceptionalContexts; // logging from INFO() due to an exception
+
+        // stuff for subcases
+        std::set<SubcaseSignature> subcasesPassed;
+        std::set<int>              subcasesEnteredLevels;
+        std::vector<Subcase>       subcasesStack;
+        int                        subcasesCurrentLevel;
+        bool                       subcasesHasSkipped;
+
+        void resetRunData() {
+            numTestsPassingFilters                = 0;
+            numTestSuitesPassingFilters           = 0;
+            numFailed                             = 0;
+            numAssertions                         = 0;
+            numFailedAssertions                   = 0;
+            numFailedAssertionsForCurrentTestcase = 0;
+        }
+
+        // cppcheck-suppress uninitMemberVar
+        ContextState()
+                : filters(8) // 8 different filters total
+        {
+            resetRunData();
+        }
+    };
+
+    ContextState* contextState = 0;
+#endif // DOCTEST_CONFIG_DISABLE
+} // namespace detail
+
+void String::copy(const String& other) {
+    if(other.isOnStack()) {
+        detail::my_memcpy(buf, other.buf, len);
+    } else {
+        setOnHeap();
+        data.size     = other.data.size;
+        data.capacity = data.size + 1;
+        data.ptr      = new char[data.capacity];
+        detail::my_memcpy(data.ptr, other.data.ptr, data.size + 1);
+    }
+}
+
+String::String(const char* in) {
+    unsigned in_len = detail::my_strlen(in);
+    if(in_len <= last) {
+        detail::my_memcpy(buf, in, in_len + 1);
+        setLast(last - in_len);
+    } else {
+        setOnHeap();
+        data.size     = in_len;
+        data.capacity = data.size + 1;
+        data.ptr      = new char[data.capacity];
+        detail::my_memcpy(data.ptr, in, in_len + 1);
+    }
+}
+
+String& String::operator+=(const String& other) {
+    unsigned my_old_size = size();
+    unsigned other_size  = other.size();
+    unsigned total_size  = my_old_size + other_size;
+    if(isOnStack()) {
+        if(total_size < len) {
+            // append to the current stack space
+            detail::my_memcpy(buf + my_old_size, other.c_str(), other_size + 1);
+            setLast(last - total_size);
+        } else {
+            // alloc new chunk
+            char* temp = new char[total_size + 1];
+            // copy current data to new location before writing in the union
+            detail::my_memcpy(temp, buf, my_old_size); // skip the +1 ('\0') for speed
+            // update data in union
+            setOnHeap();
+            data.size     = total_size;
+            data.capacity = data.size + 1;
+            data.ptr      = temp;
+            // transfer the rest of the data
+            detail::my_memcpy(data.ptr + my_old_size, other.c_str(), other_size + 1);
+        }
+    } else {
+        if(data.capacity > total_size) {
+            // append to the current heap block
+            data.size = total_size;
+            detail::my_memcpy(data.ptr + my_old_size, other.c_str(), other_size + 1);
+        } else {
+            // resize
+            data.capacity *= 2;
+            if(data.capacity <= total_size)
+                data.capacity = total_size + 1;
+            // alloc new chunk
+            char* temp = new char[data.capacity];
+            // copy current data to new location before releasing it
+            detail::my_memcpy(temp, data.ptr, my_old_size); // skip the +1 ('\0') for speed
+            // release old chunk
+            delete[] data.ptr;
+            // update the rest of the union members
+            data.size = total_size;
+            data.ptr  = temp;
+            // transfer the rest of the data
+            detail::my_memcpy(data.ptr + my_old_size, other.c_str(), other_size + 1);
+        }
+    }
+
+    return *this;
+}
+
+#ifdef DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+String::String(String&& other) {
+    detail::my_memcpy(buf, other.buf, len);
+    other.buf[0] = '\0';
+    other.setLast();
+}
+
+String& String::operator=(String&& other) {
+    if(!isOnStack())
+        delete[] data.ptr;
+    detail::my_memcpy(buf, other.buf, len);
+    other.buf[0] = '\0';
+    other.setLast();
+    return *this;
+}
+#endif // DOCTEST_CONFIG_WITH_RVALUE_REFERENCES
+
+int String::compare(const char* other, bool no_case) const {
+    if(no_case)
+        return detail::stricmp(c_str(), other);
+    return std::strcmp(c_str(), other);
+}
+
+int String::compare(const String& other, bool no_case) const {
+    return compare(other.c_str(), no_case);
+}
+
+std::ostream& operator<<(std::ostream& stream, const String& in) {
+    stream << in.c_str();
+    return stream;
+}
+
+Approx::Approx(double value)
+        : m_epsilon(static_cast<double>(std::numeric_limits<float>::epsilon()) * 100)
+        , m_scale(1.0)
+        , m_value(value) {}
+
+bool operator==(double lhs, Approx const& rhs) {
+    // Thanks to Richard Harris for his help refining this formula
+    return std::fabs(lhs - rhs.m_value) <
+           rhs.m_epsilon * (rhs.m_scale + detail::my_max(std::fabs(lhs), std::fabs(rhs.m_value)));
+}
+
+String Approx::toString() const { return String("Approx( ") + doctest::toString(m_value) + " )"; }
+
+#ifdef DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+String toString(char* in) { return toString(static_cast<const char*>(in)); }
+String toString(const char* in) { return String("\"") + (in ? in : "{null string}") + "\""; }
+#endif // DOCTEST_CONFIG_TREAT_CHAR_STAR_AS_STRING
+String toString(bool in) { return in ? "true" : "false"; }
+String toString(float in) { return detail::fpToString(in, 5) + "f"; }
+String toString(double in) { return detail::fpToString(in, 10); }
+String toString(double long in) { return detail::fpToString(in, 15); }
+
+String toString(char in) {
+    char buf[64];
+    std::sprintf(buf, "%d", in);
+    return buf;
+}
+
+String toString(char signed in) {
+    char buf[64];
+    std::sprintf(buf, "%d", in);
+    return buf;
+}
+
+String toString(char unsigned in) {
+    char buf[64];
+    std::sprintf(buf, "%ud", in);
+    return buf;
+}
+
+String toString(int short in) {
+    char buf[64];
+    std::sprintf(buf, "%d", in);
+    return buf;
+}
+
+String toString(int short unsigned in) {
+    char buf[64];
+    std::sprintf(buf, "%u", in);
+    return buf;
+}
+
+String toString(int in) {
+    char buf[64];
+    std::sprintf(buf, "%d", in);
+    return buf;
+}
+
+String toString(int unsigned in) {
+    char buf[64];
+    std::sprintf(buf, "%u", in);
+    return buf;
+}
+
+String toString(int long in) {
+    char buf[64];
+    std::sprintf(buf, "%ld", in);
+    return buf;
+}
+
+String toString(int long unsigned in) {
+    char buf[64];
+    std::sprintf(buf, "%lu", in);
+    return buf;
+}
+
+#ifdef DOCTEST_CONFIG_WITH_LONG_LONG
+String toString(int long long in) {
+    char buf[64];
+    std::sprintf(buf, "%lld", in);
+    return buf;
+}
+String toString(int long long unsigned in) {
+    char buf[64];
+    std::sprintf(buf, "%llu", in);
+    return buf;
+}
+#endif // DOCTEST_CONFIG_WITH_LONG_LONG
+
+#ifdef DOCTEST_CONFIG_WITH_NULLPTR
+String toString(std::nullptr_t) { return "nullptr"; }
+#endif // DOCTEST_CONFIG_WITH_NULLPTR
+
+} // namespace doctest
+
+#ifdef DOCTEST_CONFIG_DISABLE
+namespace doctest
+{
+bool isRunningInTest() { return false; }
+Context::Context(int, const char* const*) {}
+Context::~Context() {}
+void Context::applyCommandLine(int, const char* const*) {}
+void Context::addFilter(const char*, const char*) {}
+void Context::clearFilters() {}
+void Context::setOption(const char*, int) {}
+void Context::setOption(const char*, const char*) {}
+bool Context::shouldExit() { return false; }
+int  Context::run() { return 0; }
+} // namespace doctest
+#else // DOCTEST_CONFIG_DISABLE
+
+#if !defined(DOCTEST_CONFIG_COLORS_NONE)
+#if !defined(DOCTEST_CONFIG_COLORS_WINDOWS) && !defined(DOCTEST_CONFIG_COLORS_ANSI)
+#ifdef DOCTEST_PLATFORM_WINDOWS
+#define DOCTEST_CONFIG_COLORS_WINDOWS
+#else // linux
+#define DOCTEST_CONFIG_COLORS_ANSI
+#endif // platform
+#endif // DOCTEST_CONFIG_COLORS_WINDOWS && DOCTEST_CONFIG_COLORS_ANSI
+#endif // DOCTEST_CONFIG_COLORS_NONE
+
+#define DOCTEST_PRINTF_COLORED(buffer, color)                                                      \
+    do {                                                                                           \
+        doctest::detail::Color col(color);                                                         \
+        std::printf("%s", buffer);                                                                 \
+    } while((void)0, 0)
+
+// the buffer size used for snprintf() calls
+#if !defined(DOCTEST_SNPRINTF_BUFFER_LENGTH)
+#define DOCTEST_SNPRINTF_BUFFER_LENGTH 1024
+#endif // DOCTEST_SNPRINTF_BUFFER_LENGTH
+
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#if defined(_MSC_VER) && _MSC_VER >= 1700
+#define DOCTEST_WINDOWS_SAL_IN_OPT _In_opt_
+#else // _MSC_VER
+#define DOCTEST_WINDOWS_SAL_IN_OPT
+#endif // _MSC_VER
+extern "C" __declspec(dllimport) void __stdcall OutputDebugStringA(
+        DOCTEST_WINDOWS_SAL_IN_OPT const char*);
+extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
+#endif // _MSC_VER || __MINGW32__
+
+#ifdef DOCTEST_CONFIG_COLORS_ANSI
+#include <unistd.h>
+#endif // DOCTEST_CONFIG_COLORS_ANSI
+
+#ifdef _WIN32
+
+// defines for a leaner windows.h
+#ifndef WIN32_MEAN_AND_LEAN
+#define WIN32_MEAN_AND_LEAN
+#endif // WIN32_MEAN_AND_LEAN
+#ifndef VC_EXTRA_LEAN
+#define VC_EXTRA_LEAN
+#endif // VC_EXTRA_LEAN
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif // NOMINMAX
+
+// not sure what AfxWin.h is for - here I do what Catch does
+#ifdef __AFXDLL
+#include <AfxWin.h>
+#else
+#include <windows.h>
+#endif
+#include <io.h>
+
+#else // _WIN32
+
+#include <sys/time.h>
+
+#endif // _WIN32
+
+namespace doctest_detail_test_suite_ns
+{
+// holds the current test suite
+doctest::detail::TestSuite& getCurrentTestSuite() {
+    static doctest::detail::TestSuite data;
+    return data;
+}
+} // namespace doctest_detail_test_suite_ns
+
+namespace doctest
+{
+namespace detail
+{
+    TestCase::TestCase(funcType test, const char* file, unsigned line, const TestSuite& test_suite,
+                       const char* type, int template_id)
+            : m_test(test)
+            , m_name(0)
+            , m_type(type)
+            , m_test_suite(test_suite.m_test_suite)
+            , m_description(test_suite.m_description)
+            , m_skip(test_suite.m_skip)
+            , m_may_fail(test_suite.m_may_fail)
+            , m_should_fail(test_suite.m_should_fail)
+            , m_expected_failures(test_suite.m_expected_failures)
+            , m_timeout(test_suite.m_timeout)
+            , m_file(file)
+            , m_line(line)
+            , m_template_id(template_id) {}
+
+    TestCase& TestCase::operator*(const char* in) {
+        m_name = in;
+        // make a new name with an appended type for templated test case
+        if(m_template_id != -1) {
+            m_full_name = String(m_name) + m_type;
+            // redirect the name to point to the newly constructed full name
+            m_name = m_full_name.c_str();
+        }
+        return *this;
+    }
+
+    TestCase& TestCase::operator=(const TestCase& other) {
+        m_test              = other.m_test;
+        m_full_name         = other.m_full_name;
+        m_name              = other.m_name;
+        m_type              = other.m_type;
+        m_test_suite        = other.m_test_suite;
+        m_description       = other.m_description;
+        m_skip              = other.m_skip;
+        m_may_fail          = other.m_may_fail;
+        m_should_fail       = other.m_should_fail;
+        m_expected_failures = other.m_expected_failures;
+        m_timeout           = other.m_timeout;
+        m_file              = other.m_file;
+        m_line              = other.m_line;
+        m_template_id       = other.m_template_id;
+
+        if(m_template_id != -1)
+            m_name = m_full_name.c_str();
+        return *this;
+    }
+
+    bool TestCase::operator<(const TestCase& other) const {
+        if(m_line != other.m_line)
+            return m_line < other.m_line;
+        int file_cmp = std::strcmp(m_file, other.m_file);
+        if(file_cmp != 0)
+            return file_cmp < 0;
+        return m_template_id < other.m_template_id;
+    }
+
+    const char* getAssertString(assertType::Enum val) {
+        switch(val) { //!OCLINT missing default in switch statements
+            // clang-format off
+            case assertType::DT_WARN                    : return "WARN";
+            case assertType::DT_CHECK                   : return "CHECK";
+            case assertType::DT_REQUIRE                 : return "REQUIRE";
+
+            case assertType::DT_WARN_FALSE              : return "WARN_FALSE";
+            case assertType::DT_CHECK_FALSE             : return "CHECK_FALSE";
+            case assertType::DT_REQUIRE_FALSE           : return "REQUIRE_FALSE";
+
+            case assertType::DT_WARN_THROWS             : return "WARN_THROWS";
+            case assertType::DT_CHECK_THROWS            : return "CHECK_THROWS";
+            case assertType::DT_REQUIRE_THROWS          : return "REQUIRE_THROWS";
+
+            case assertType::DT_WARN_THROWS_AS          : return "WARN_THROWS_AS";
+            case assertType::DT_CHECK_THROWS_AS         : return "CHECK_THROWS_AS";
+            case assertType::DT_REQUIRE_THROWS_AS       : return "REQUIRE_THROWS_AS";
+
+            case assertType::DT_WARN_NOTHROW            : return "WARN_NOTHROW";
+            case assertType::DT_CHECK_NOTHROW           : return "CHECK_NOTHROW";
+            case assertType::DT_REQUIRE_NOTHROW         : return "REQUIRE_NOTHROW";
+
+            case assertType::DT_WARN_EQ                 : return "WARN_EQ";
+            case assertType::DT_CHECK_EQ                : return "CHECK_EQ";
+            case assertType::DT_REQUIRE_EQ              : return "REQUIRE_EQ";
+            case assertType::DT_WARN_NE                 : return "WARN_NE";
+            case assertType::DT_CHECK_NE                : return "CHECK_NE";
+            case assertType::DT_REQUIRE_NE              : return "REQUIRE_NE";
+            case assertType::DT_WARN_GT                 : return "WARN_GT";
+            case assertType::DT_CHECK_GT                : return "CHECK_GT";
+            case assertType::DT_REQUIRE_GT              : return "REQUIRE_GT";
+            case assertType::DT_WARN_LT                 : return "WARN_LT";
+            case assertType::DT_CHECK_LT                : return "CHECK_LT";
+            case assertType::DT_REQUIRE_LT              : return "REQUIRE_LT";
+            case assertType::DT_WARN_GE                 : return "WARN_GE";
+            case assertType::DT_CHECK_GE                : return "CHECK_GE";
+            case assertType::DT_REQUIRE_GE              : return "REQUIRE_GE";
+            case assertType::DT_WARN_LE                 : return "WARN_LE";
+            case assertType::DT_CHECK_LE                : return "CHECK_LE";
+            case assertType::DT_REQUIRE_LE              : return "REQUIRE_LE";
+
+            case assertType::DT_WARN_UNARY              : return "WARN_UNARY";
+            case assertType::DT_CHECK_UNARY             : return "CHECK_UNARY";
+            case assertType::DT_REQUIRE_UNARY           : return "REQUIRE_UNARY";
+            case assertType::DT_WARN_UNARY_FALSE        : return "WARN_UNARY_FALSE";
+            case assertType::DT_CHECK_UNARY_FALSE       : return "CHECK_UNARY_FALSE";
+            case assertType::DT_REQUIRE_UNARY_FALSE     : return "REQUIRE_UNARY_FALSE";
+
+            case assertType::DT_FAST_WARN_EQ            : return "FAST_WARN_EQ";
+            case assertType::DT_FAST_CHECK_EQ           : return "FAST_CHECK_EQ";
+            case assertType::DT_FAST_REQUIRE_EQ         : return "FAST_REQUIRE_EQ";
+            case assertType::DT_FAST_WARN_NE            : return "FAST_WARN_NE";
+            case assertType::DT_FAST_CHECK_NE           : return "FAST_CHECK_NE";
+            case assertType::DT_FAST_REQUIRE_NE         : return "FAST_REQUIRE_NE";
+            case assertType::DT_FAST_WARN_GT            : return "FAST_WARN_GT";
+            case assertType::DT_FAST_CHECK_GT           : return "FAST_CHECK_GT";
+            case assertType::DT_FAST_REQUIRE_GT         : return "FAST_REQUIRE_GT";
+            case assertType::DT_FAST_WARN_LT            : return "FAST_WARN_LT";
+            case assertType::DT_FAST_CHECK_LT           : return "FAST_CHECK_LT";
+            case assertType::DT_FAST_REQUIRE_LT         : return "FAST_REQUIRE_LT";
+            case assertType::DT_FAST_WARN_GE            : return "FAST_WARN_GE";
+            case assertType::DT_FAST_CHECK_GE           : return "FAST_CHECK_GE";
+            case assertType::DT_FAST_REQUIRE_GE         : return "FAST_REQUIRE_GE";
+            case assertType::DT_FAST_WARN_LE            : return "FAST_WARN_LE";
+            case assertType::DT_FAST_CHECK_LE           : return "FAST_CHECK_LE";
+            case assertType::DT_FAST_REQUIRE_LE         : return "FAST_REQUIRE_LE";
+
+            case assertType::DT_FAST_WARN_UNARY         : return "FAST_WARN_UNARY";
+            case assertType::DT_FAST_CHECK_UNARY        : return "FAST_CHECK_UNARY";
+            case assertType::DT_FAST_REQUIRE_UNARY      : return "FAST_REQUIRE_UNARY";
+            case assertType::DT_FAST_WARN_UNARY_FALSE   : return "FAST_WARN_UNARY_FALSE";
+            case assertType::DT_FAST_CHECK_UNARY_FALSE  : return "FAST_CHECK_UNARY_FALSE";
+            case assertType::DT_FAST_REQUIRE_UNARY_FALSE: return "FAST_REQUIRE_UNARY_FALSE";
+                // clang-format on
+        }
+        return "";
+    }
+
+    bool checkIfShouldThrow(assertType::Enum assert_type) {
+        if(assert_type & assertType::is_require) //!OCLINT bitwise operator in conditional
+            return true;
+
+        if((assert_type & assertType::is_check) //!OCLINT bitwise operator in conditional
+           && contextState->abort_after > 0 &&
+           contextState->numFailedAssertions >= contextState->abort_after)
+            return true;
+
+        return false;
+    }
+    void fastAssertThrowIfFlagSet(int flags) {
+        if(flags & assertAction::shouldthrow) //!OCLINT bitwise operator in conditional
+            throwException();
+    }
+    void throwException() {
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+        throw TestFailureException();
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+    }
+
+    // matching of a string against a wildcard mask (case sensitivity configurable) taken from
+    // http://www.emoticode.net/c/simple-wildcard-string-compare-globbing-function.html
+    int wildcmp(const char* str, const char* wild, bool caseSensitive) {
+        const char* cp = 0;
+        const char* mp = 0;
+
+        // rolled my own tolower() to not include more headers
+        while((*str) && (*wild != '*')) {
+            if((caseSensitive ? (*wild != *str) : (tolower(*wild) != tolower(*str))) &&
+               (*wild != '?')) {
+                return 0;
+            }
+            wild++;
+            str++;
+        }
+
+        while(*str) {
+            if(*wild == '*') {
+                if(!*++wild) {
+                    return 1;
+                }
+                mp = wild;
+                cp = str + 1;
+            } else if((caseSensitive ? (*wild == *str) : (tolower(*wild) == tolower(*str))) ||
+                      (*wild == '?')) {
+                wild++;
+                str++;
+            } else {
+                wild = mp;   //!OCLINT parameter reassignment
+                str  = cp++; //!OCLINT parameter reassignment
+            }
+        }
+
+        while(*wild == '*') {
+            wild++;
+        }
+        return !*wild;
+    }
+
+    //// C string hash function (djb2) - taken from http://www.cse.yorku.ca/~oz/hash.html
+    //unsigned hashStr(unsigned const char* str) {
+    //    unsigned long hash = 5381;
+    //    char          c;
+    //    while((c = *str++))
+    //        hash = ((hash << 5) + hash) + c; // hash * 33 + c
+    //    return hash;
+    //}
+
+    // checks if the name matches any of the filters (and can be configured what to do when empty)
+    bool matchesAny(const char* name, const std::vector<String>& filters, int matchEmpty,
+                    bool caseSensitive) {
+        if(filters.empty() && matchEmpty)
+            return true;
+        for(unsigned i = 0; i < filters.size(); ++i)
+            if(wildcmp(name, filters[i].c_str(), caseSensitive))
+                return true;
+        return false;
+    }
+
+#ifdef _WIN32
+
+    typedef unsigned long long UInt64;
+
+    UInt64 getCurrentTicks() {
+        static UInt64 hz = 0, hzo = 0;
+        if(!hz) {
+            QueryPerformanceFrequency(reinterpret_cast<LARGE_INTEGER*>(&hz));
+            QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER*>(&hzo));
+        }
+        UInt64 t;
+        QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER*>(&t));
+        return ((t - hzo) * 1000000) / hz;
+    }
+#else  // _WIN32
+
+    typedef uint64_t UInt64;
+
+    UInt64 getCurrentTicks() {
+        timeval t;
+        gettimeofday(&t, 0);
+        return static_cast<UInt64>(t.tv_sec) * 1000000 + static_cast<UInt64>(t.tv_usec);
+    }
+#endif // _WIN32
+
+    class Timer
+    {
+    public:
+        Timer()
+                : m_ticks(0) {}
+        void         start() { m_ticks = getCurrentTicks(); }
+        unsigned int getElapsedMicroseconds() const {
+            return static_cast<unsigned int>(getCurrentTicks() - m_ticks);
+        }
+        unsigned int getElapsedMilliseconds() const {
+            return static_cast<unsigned int>(getElapsedMicroseconds() / 1000);
+        }
+        double getElapsedSeconds() const { return getElapsedMicroseconds() / 1000000.0; }
+
+    private:
+        UInt64 m_ticks;
+    };
+
+    TestAccessibleContextState* getTestsContextState() { return contextState; }
+
+    bool SubcaseSignature::operator<(const SubcaseSignature& other) const {
+        if(m_line != other.m_line)
+            return m_line < other.m_line;
+        if(std::strcmp(m_file, other.m_file) != 0)
+            return std::strcmp(m_file, other.m_file) < 0;
+        return std::strcmp(m_name, other.m_name) < 0;
+    }
+
+    Subcase::Subcase(const char* name, const char* file, int line)
+            : m_signature(name, file, line)
+            , m_entered(false) {
+        ContextState* s = contextState;
+
+        // if we have already completed it
+        if(s->subcasesPassed.count(m_signature) != 0)
+            return;
+
+        // check subcase filters
+        if(s->subcasesCurrentLevel < s->subcase_filter_levels) {
+            if(!matchesAny(m_signature.m_name, s->filters[6], 1, s->case_sensitive))
+                return;
+            if(matchesAny(m_signature.m_name, s->filters[7], 0, s->case_sensitive))
+                return;
+        }
+
+        // if a Subcase on the same level has already been entered
+        if(s->subcasesEnteredLevels.count(s->subcasesCurrentLevel) != 0) {
+            s->subcasesHasSkipped = true;
+            return;
+        }
+
+        s->subcasesStack.push_back(*this);
+        if(s->hasLoggedCurrentTestStart)
+            logTestEnd();
+        s->hasLoggedCurrentTestStart = false;
+
+        s->subcasesEnteredLevels.insert(s->subcasesCurrentLevel++);
+        m_entered = true;
+    }
+
+    Subcase::Subcase(const Subcase& other)
+            : m_signature(other.m_signature.m_name, other.m_signature.m_file,
+                          other.m_signature.m_line)
+            , m_entered(other.m_entered) {}
+
+    Subcase::~Subcase() {
+        if(m_entered) {
+            ContextState* s = contextState;
+
+            s->subcasesCurrentLevel--;
+            // only mark the subcase as passed if no subcases have been skipped
+            if(s->subcasesHasSkipped == false)
+                s->subcasesPassed.insert(m_signature);
+
+            if(!s->subcasesStack.empty())
+                s->subcasesStack.pop_back();
+            if(s->hasLoggedCurrentTestStart)
+                logTestEnd();
+            s->hasLoggedCurrentTestStart = false;
+        }
+    }
+
+    Result::~Result() {}
+
+    Result& Result::operator=(const Result& other) {
+        m_passed        = other.m_passed;
+        m_decomposition = other.m_decomposition;
+
+        return *this;
+    }
+
+    // for sorting tests by file/line
+    int fileOrderComparator(const void* a, const void* b) {
+        const TestCase* lhs = *static_cast<TestCase* const*>(a);
+        const TestCase* rhs = *static_cast<TestCase* const*>(b);
+#ifdef _MSC_VER
+        // this is needed because MSVC gives different case for drive letters
+        // for __FILE__ when evaluated in a header and a source file
+        int res = stricmp(lhs->m_file, rhs->m_file);
+#else  // _MSC_VER
+        int res = std::strcmp(lhs->m_file, rhs->m_file);
+#endif // _MSC_VER
+        if(res != 0)
+            return res;
+        return static_cast<int>(lhs->m_line - rhs->m_line);
+    }
+
+    // for sorting tests by suite/file/line
+    int suiteOrderComparator(const void* a, const void* b) {
+        const TestCase* lhs = *static_cast<TestCase* const*>(a);
+        const TestCase* rhs = *static_cast<TestCase* const*>(b);
+
+        int res = std::strcmp(lhs->m_test_suite, rhs->m_test_suite);
+        if(res != 0)
+            return res;
+        return fileOrderComparator(a, b);
+    }
+
+    // for sorting tests by name/suite/file/line
+    int nameOrderComparator(const void* a, const void* b) {
+        const TestCase* lhs = *static_cast<TestCase* const*>(a);
+        const TestCase* rhs = *static_cast<TestCase* const*>(b);
+
+        int res_name = std::strcmp(lhs->m_name, rhs->m_name);
+        if(res_name != 0)
+            return res_name;
+        return suiteOrderComparator(a, b);
+    }
+
+    // sets the current test suite
+    int setTestSuite(const TestSuite& ts) {
+        doctest_detail_test_suite_ns::getCurrentTestSuite() = ts;
+        return 0;
+    }
+
+    // all the registered tests
+    std::set<TestCase>& getRegisteredTests() {
+        static std::set<TestCase> data;
+        return data;
+    }
+
+    // used by the macros for registering tests
+    int regTest(const TestCase& tc) {
+        getRegisteredTests().insert(tc);
+        return 0;
+    }
+
+    struct Color
+    {
+        enum Code
+        {
+            None = 0,
+            White,
+            Red,
+            Green,
+            Blue,
+            Cyan,
+            Yellow,
+            Grey,
+
+            Bright = 0x10,
+
+            BrightRed   = Bright | Red,
+            BrightGreen = Bright | Green,
+            LightGrey   = Bright | Grey,
+            BrightWhite = Bright | White
+        };
+        explicit Color(Code code) { use(code); }
+        ~Color() { use(None); }
+
+        static void use(Code code);
+        static void init();
+    };
+
+#ifdef DOCTEST_CONFIG_COLORS_WINDOWS
+    HANDLE g_stdoutHandle;
+    WORD   g_originalForegroundAttributes;
+    WORD   g_originalBackgroundAttributes;
+    bool   g_attrsInitted = false;
+#endif // DOCTEST_CONFIG_COLORS_WINDOWS
+
+    void Color::init() {
+#ifdef DOCTEST_CONFIG_COLORS_WINDOWS
+        if(!g_attrsInitted) {
+            g_stdoutHandle = GetStdHandle(STD_OUTPUT_HANDLE);
+            g_attrsInitted = true;
+            CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
+            GetConsoleScreenBufferInfo(g_stdoutHandle, &csbiInfo);
+            g_originalForegroundAttributes =
+                    csbiInfo.wAttributes &
+                    ~(BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY);
+            g_originalBackgroundAttributes =
+                    csbiInfo.wAttributes &
+                    ~(FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY);
+        }
+#endif // DOCTEST_CONFIG_COLORS_WINDOWS
+    }
+
+    void Color::use(Code
+#ifndef DOCTEST_CONFIG_COLORS_NONE
+                            code
+#endif // DOCTEST_CONFIG_COLORS_NONE
+                    ) {
+        const ContextState* p = contextState;
+        if(p->no_colors)
+            return;
+#ifdef DOCTEST_CONFIG_COLORS_ANSI
+        if(isatty(STDOUT_FILENO) == false && p->force_colors == false)
+            return;
+
+        const char* col = "";
+        // clang-format off
+        switch(code) { //!OCLINT missing break in switch statement / unnecessary default statement in covered switch statement
+            case Color::Red:         col = "[0;31m"; break;
+            case Color::Green:       col = "[0;32m"; break;
+            case Color::Blue:        col = "[0;34m"; break;
+            case Color::Cyan:        col = "[0;36m"; break;
+            case Color::Yellow:      col = "[0;33m"; break;
+            case Color::Grey:        col = "[1;30m"; break;
+            case Color::LightGrey:   col = "[0;37m"; break;
+            case Color::BrightRed:   col = "[1;31m"; break;
+            case Color::BrightGreen: col = "[1;32m"; break;
+            case Color::BrightWhite: col = "[1;37m"; break;
+            case Color::Bright: // invalid
+            case Color::None:
+            case Color::White:
+            default:                 col = "[0m";
+        }
+        // clang-format on
+        std::printf("\033%s", col);
+#endif // DOCTEST_CONFIG_COLORS_ANSI
+
+#ifdef DOCTEST_CONFIG_COLORS_WINDOWS
+        if(isatty(fileno(stdout)) == false && p->force_colors == false)
+            return;
+
+#define DOCTEST_SET_ATTR(x)                                                                        \
+    SetConsoleTextAttribute(g_stdoutHandle, x | g_originalBackgroundAttributes)
+
+        // clang-format off
+        switch (code) {
+            case Color::White:       DOCTEST_SET_ATTR(FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE); break;
+            case Color::Red:         DOCTEST_SET_ATTR(FOREGROUND_RED);                                      break;
+            case Color::Green:       DOCTEST_SET_ATTR(FOREGROUND_GREEN);                                    break;
+            case Color::Blue:        DOCTEST_SET_ATTR(FOREGROUND_BLUE);                                     break;
+            case Color::Cyan:        DOCTEST_SET_ATTR(FOREGROUND_BLUE | FOREGROUND_GREEN);                  break;
+            case Color::Yellow:      DOCTEST_SET_ATTR(FOREGROUND_RED | FOREGROUND_GREEN);                   break;
+            case Color::Grey:        DOCTEST_SET_ATTR(0);                                                   break;
+            case Color::LightGrey:   DOCTEST_SET_ATTR(FOREGROUND_INTENSITY);                                break;
+            case Color::BrightRed:   DOCTEST_SET_ATTR(FOREGROUND_INTENSITY | FOREGROUND_RED);               break;
+            case Color::BrightGreen: DOCTEST_SET_ATTR(FOREGROUND_INTENSITY | FOREGROUND_GREEN);             break;
+            case Color::BrightWhite: DOCTEST_SET_ATTR(FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE); break;
+            case Color::None:
+            case Color::Bright: // invalid
+            default:                 DOCTEST_SET_ATTR(g_originalForegroundAttributes);
+        }
+// clang-format on
+#undef DOCTEST_SET_ATTR
+#endif // DOCTEST_CONFIG_COLORS_WINDOWS
+    }
+
+    IExceptionTranslator::~IExceptionTranslator() {}
+
+    std::vector<const IExceptionTranslator*>& getExceptionTranslators() {
+        static std::vector<const IExceptionTranslator*> data;
+        return data;
+    }
+
+    void registerExceptionTranslatorImpl(const IExceptionTranslator* translateFunction) {
+        getExceptionTranslators().push_back(translateFunction);
+    }
+
+    String translateActiveException() {
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+        String                                    res;
+        std::vector<const IExceptionTranslator*>& translators = getExceptionTranslators();
+        for(size_t i = 0; i < translators.size(); ++i)
+            if(translators[i]->translate(res))
+                return res;
+        // clang-format off
+        try {
+            throw;
+        } catch(std::exception& ex) {
+            return ex.what();
+        } catch(std::string& msg) {
+            return msg.c_str();
+        } catch(const char* msg) {
+            return msg;
+        } catch(...) {
+            return "unknown exception";
+        }
+// clang-format on
+#else  // DOCTEST_CONFIG_NO_EXCEPTIONS
+        return "";
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+    }
+
+    void writeStringToStream(std::ostream* stream, const String& str) { *stream << str; }
+
+    void addToContexts(IContextScope* ptr) { contextState->contexts.push_back(ptr); }
+    void                              popFromContexts() { contextState->contexts.pop_back(); }
+    void useContextIfExceptionOccurred(IContextScope* ptr) {
+        if(std::uncaught_exception()) {
+            std::ostringstream stream;
+            ptr->build(&stream);
+            contextState->exceptionalContexts.push_back(stream.str());
+        }
+    }
+
+    void printSummary();
+
+#if !defined(DOCTEST_CONFIG_POSIX_SIGNALS) && !defined(DOCTEST_CONFIG_WINDOWS_SEH)
+    void reportFatal(const std::string&) {}
+    struct FatalConditionHandler
+    {
+        void reset() {}
+    };
+#else // DOCTEST_CONFIG_POSIX_SIGNALS || DOCTEST_CONFIG_WINDOWS_SEH
+
+    void reportFatal(const std::string& message) {
+        DOCTEST_LOG_START();
+
+        contextState->numAssertions += contextState->numAssertionsForCurrentTestcase;
+        logTestException(message.c_str(), true);
+        logTestEnd();
+        contextState->numFailed++;
+
+        printSummary();
+    }
+
+#ifdef DOCTEST_PLATFORM_WINDOWS
+
+    struct SignalDefs
+    {
+        DWORD       id;
+        const char* name;
+    };
+    // There is no 1-1 mapping between signals and windows exceptions.
+    // Windows can easily distinguish between SO and SigSegV,
+    // but SigInt, SigTerm, etc are handled differently.
+    SignalDefs signalDefs[] = {
+            {EXCEPTION_ILLEGAL_INSTRUCTION, "SIGILL - Illegal instruction signal"},
+            {EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow"},
+            {EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal"},
+            {EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error"},
+    };
+
+    struct FatalConditionHandler
+    {
+        static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
+            for(size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
+                if(ExceptionInfo->ExceptionRecord->ExceptionCode == signalDefs[i].id) {
+                    reportFatal(signalDefs[i].name);
+                }
+            }
+            // If its not an exception we care about, pass it along.
+            // This stops us from eating debugger breaks etc.
+            return EXCEPTION_CONTINUE_SEARCH;
+        }
+
+        FatalConditionHandler() {
+            isSet = true;
+            // 32k seems enough for doctest to handle stack overflow,
+            // but the value was found experimentally, so there is no strong guarantee
+            guaranteeSize          = 32 * 1024;
+            exceptionHandlerHandle = 0;
+            // Register as first handler in current chain
+            exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
+            // Pass in guarantee size to be filled
+            SetThreadStackGuarantee(&guaranteeSize);
+        }
+
+        static void reset() {
+            if(isSet) {
+                // Unregister handler and restore the old guarantee
+                RemoveVectoredExceptionHandler(exceptionHandlerHandle);
+                SetThreadStackGuarantee(&guaranteeSize);
+                exceptionHandlerHandle = 0;
+                isSet                  = false;
+            }
+        }
+
+        ~FatalConditionHandler() { reset(); }
+
+    private:
+        static bool  isSet;
+        static ULONG guaranteeSize;
+        static PVOID exceptionHandlerHandle;
+    };
+
+    bool  FatalConditionHandler::isSet                  = false;
+    ULONG FatalConditionHandler::guaranteeSize          = 0;
+    PVOID FatalConditionHandler::exceptionHandlerHandle = 0;
+
+#else // DOCTEST_PLATFORM_WINDOWS
+
+    struct SignalDefs
+    {
+        int         id;
+        const char* name;
+    };
+    SignalDefs signalDefs[] = {{SIGINT, "SIGINT - Terminal interrupt signal"},
+                               {SIGILL, "SIGILL - Illegal instruction signal"},
+                               {SIGFPE, "SIGFPE - Floating point error signal"},
+                               {SIGSEGV, "SIGSEGV - Segmentation violation signal"},
+                               {SIGTERM, "SIGTERM - Termination request signal"},
+                               {SIGABRT, "SIGABRT - Abort (abnormal termination) signal"}};
+
+    struct FatalConditionHandler
+    {
+        static bool             isSet;
+        static struct sigaction oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)];
+        static stack_t          oldSigStack;
+        static char             altStackMem[SIGSTKSZ];
+
+        static void handleSignal(int sig) {
+            std::string name = "<unknown signal>";
+            for(std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
+                SignalDefs& def = signalDefs[i];
+                if(sig == def.id) {
+                    name = def.name;
+                    break;
+                }
+            }
+            reset();
+            reportFatal(name);
+            raise(sig);
+        }
+
+        FatalConditionHandler() {
+            isSet = true;
+            stack_t sigStack;
+            sigStack.ss_sp    = altStackMem;
+            sigStack.ss_size  = SIGSTKSZ;
+            sigStack.ss_flags = 0;
+            sigaltstack(&sigStack, &oldSigStack);
+            struct sigaction sa = {0};
+
+            sa.sa_handler = handleSignal; // NOLINT
+            sa.sa_flags   = SA_ONSTACK;
+            for(std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
+                sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
+            }
+        }
+
+        ~FatalConditionHandler() { reset(); }
+        static void reset() {
+            if(isSet) {
+                // Set signals back to previous values -- hopefully nobody overwrote them in the meantime
+                for(std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
+                    sigaction(signalDefs[i].id, &oldSigActions[i], 0);
+                }
+                // Return the old stack
+                sigaltstack(&oldSigStack, 0);
+                isSet = false;
+            }
+        }
+    };
+
+    bool             FatalConditionHandler::isSet = false;
+    struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)] =
+            {};
+    stack_t FatalConditionHandler::oldSigStack           = {};
+    char    FatalConditionHandler::altStackMem[SIGSTKSZ] = {};
+
+#endif // DOCTEST_PLATFORM_WINDOWS
+#endif // DOCTEST_CONFIG_POSIX_SIGNALS || DOCTEST_CONFIG_WINDOWS_SEH
+
+    // depending on the current options this will remove the path of filenames
+    const char* fileForOutput(const char* file) {
+        if(contextState->no_path_in_filenames) {
+            const char* back    = std::strrchr(file, '\\');
+            const char* forward = std::strrchr(file, '/');
+            if(back || forward) {
+                if(back > forward)
+                    forward = back;
+                return forward + 1;
+            }
+        }
+        return file;
+    }
+
+    // depending on the current options this will substitute the line numbers with 0
+    int lineForOutput(int line) {
+        if(contextState->no_line_numbers)
+            return 0;
+        return line;
+    }
+
+#ifdef DOCTEST_PLATFORM_MAC
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/sysctl.h>
+    // The following function is taken directly from the following technical note:
+    // http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html
+    // Returns true if the current process is being debugged (either
+    // running under the debugger or has a debugger attached post facto).
+    bool isDebuggerActive() {
+        int        mib[4];
+        kinfo_proc info;
+        size_t     size;
+        // Initialize the flags so that, if sysctl fails for some bizarre
+        // reason, we get a predictable result.
+        info.kp_proc.p_flag = 0;
+        // Initialize mib, which tells sysctl the info we want, in this case
+        // we're looking for information about a specific process ID.
+        mib[0] = CTL_KERN;
+        mib[1] = KERN_PROC;
+        mib[2] = KERN_PROC_PID;
+        mib[3] = getpid();
+        // Call sysctl.
+        size = sizeof(info);
+        if(sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, 0, 0) != 0) {
+            fprintf(stderr, "\n** Call to sysctl failed - unable to determine if debugger is "
+                            "active **\n\n");
+            return false;
+        }
+        // We're being debugged if the P_TRACED flag is set.
+        return ((info.kp_proc.p_flag & P_TRACED) != 0);
+    }
+#elif defined(_MSC_VER) || defined(__MINGW32__)
+    bool  isDebuggerActive() { return ::IsDebuggerPresent() != 0; }
+#else
+    bool isDebuggerActive() { return false; }
+#endif // Platform
+
+#ifdef DOCTEST_PLATFORM_WINDOWS
+    void myOutputDebugString(const String& text) { ::OutputDebugStringA(text.c_str()); }
+#else
+    // TODO: integration with XCode and other IDEs
+    void myOutputDebugString(const String&) {}
+#endif // Platform
+
+    const char* getSeparator() {
+        return "===============================================================================\n";
+    }
+
+    void printToDebugConsole(const String& text) {
+        if(isDebuggerActive())
+            myOutputDebugString(text.c_str());
+    }
+
+    void addFailedAssert(assertType::Enum assert_type) {
+        if((assert_type & assertType::is_warn) == 0) { //!OCLINT bitwise operator in conditional
+            contextState->numFailedAssertions++;
+            contextState->numFailedAssertionsForCurrentTestcase++;
+            contextState->hasCurrentTestFailed = true;
+        }
+    }
+
+    void logTestStart(const TestCase& tc) {
+        char loc[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(loc, DOCTEST_COUNTOF(loc), "%s(%d)\n", fileForOutput(tc.m_file),
+                         lineForOutput(tc.m_line));
+
+        char ts1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(ts1, DOCTEST_COUNTOF(ts1), "TEST SUITE: ");
+        char ts2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(ts2, DOCTEST_COUNTOF(ts2), "%s\n", tc.m_test_suite);
+        char n1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(n1, DOCTEST_COUNTOF(n1), "TEST CASE:  ");
+        char n2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(n2, DOCTEST_COUNTOF(n2), "%s\n", tc.m_name);
+        char d1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(d1, DOCTEST_COUNTOF(d1), "DESCRIPTION: ");
+        char d2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(d2, DOCTEST_COUNTOF(d2), "%s\n", tc.m_description);
+
+        // hack for BDD style of macros - to not print "TEST CASE:"
+        char scenario[] = "  Scenario:";
+        if(std::string(tc.m_name).substr(0, DOCTEST_COUNTOF(scenario) - 1) == scenario)
+            n1[0] = '\0';
+
+        DOCTEST_PRINTF_COLORED(getSeparator(), Color::Yellow);
+        DOCTEST_PRINTF_COLORED(loc, Color::LightGrey);
+
+        String forDebugConsole;
+        if(tc.m_description) {
+            DOCTEST_PRINTF_COLORED(d1, Color::Yellow);
+            DOCTEST_PRINTF_COLORED(d2, Color::None);
+            forDebugConsole += d1;
+            forDebugConsole += d2;
+        }
+        if(tc.m_test_suite[0] != '\0') {
+            DOCTEST_PRINTF_COLORED(ts1, Color::Yellow);
+            DOCTEST_PRINTF_COLORED(ts2, Color::None);
+            forDebugConsole += ts1;
+            forDebugConsole += ts2;
+        }
+        DOCTEST_PRINTF_COLORED(n1, Color::Yellow);
+        DOCTEST_PRINTF_COLORED(n2, Color::None);
+
+        String                subcaseStuff;
+        std::vector<Subcase>& subcasesStack = contextState->subcasesStack;
+        for(unsigned i = 0; i < subcasesStack.size(); ++i) {
+            if(subcasesStack[i].m_signature.m_name[0] != '\0') {
+                char subcase[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+                DOCTEST_SNPRINTF(subcase, DOCTEST_COUNTOF(loc), "  %s\n",
+                                 subcasesStack[i].m_signature.m_name);
+                DOCTEST_PRINTF_COLORED(subcase, Color::None);
+                subcaseStuff += subcase;
+            }
+        }
+
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(getSeparator()) + loc + forDebugConsole.c_str() + n1 + n2 +
+                            subcaseStuff.c_str() + "\n");
+    }
+
+    void logTestEnd() {}
+
+    void logTestException(const String& what, bool crash) {
+        char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+
+        DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), "TEST CASE FAILED!\n");
+
+        char info1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        char info2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        info1[0] = 0;
+        info2[0] = 0;
+        DOCTEST_SNPRINTF(info1, DOCTEST_COUNTOF(info1),
+                         crash ? "crashed:\n" : "threw exception:\n");
+        DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "  %s\n", what.c_str());
+
+        std::string contextStr;
+
+        if(!contextState->exceptionalContexts.empty()) {
+            contextStr += "with context:\n";
+            for(size_t i = contextState->exceptionalContexts.size(); i > 0; --i) {
+                contextStr += "  ";
+                contextStr += contextState->exceptionalContexts[i - 1];
+                contextStr += "\n";
+            }
+        }
+
+        DOCTEST_PRINTF_COLORED(msg, Color::Red);
+        DOCTEST_PRINTF_COLORED(info1, Color::None);
+        DOCTEST_PRINTF_COLORED(info2, Color::Cyan);
+        DOCTEST_PRINTF_COLORED(contextStr.c_str(), Color::None);
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(msg) + info1 + info2 + contextStr.c_str() + "\n");
+    }
+
+    String logContext() {
+        std::ostringstream           stream;
+        std::vector<IContextScope*>& contexts = contextState->contexts;
+        if(!contexts.empty())
+            stream << "with context:\n";
+        for(size_t i = 0; i < contexts.size(); ++i) {
+            stream << "  ";
+            contexts[i]->build(&stream);
+            stream << "\n";
+        }
+        return stream.str().c_str();
+    }
+
+    const char* getFailString(assertType::Enum assert_type) {
+        if(assert_type & assertType::is_warn) //!OCLINT bitwise operator in conditional
+            return "WARNING";
+        if(assert_type & assertType::is_check) //!OCLINT bitwise operator in conditional
+            return "ERROR";
+        if(assert_type & assertType::is_require) //!OCLINT bitwise operator in conditional
+            return "FATAL ERROR";
+        return "";
+    }
+
+    void logAssert(bool passed, const char* decomposition, bool threw, const String& exception,
+                   const char* expr, assertType::Enum assert_type, const char* file, int line) {
+        char loc[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(loc, DOCTEST_COUNTOF(loc), "%s(%d)", fileForOutput(file),
+                         lineForOutput(line));
+
+        char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), " %s!\n",
+                         passed ? "PASSED" : getFailString(assert_type));
+
+        char info1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(info1, DOCTEST_COUNTOF(info1), "  %s( %s )\n",
+                         getAssertString(assert_type), expr);
+
+        char info2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        char info3[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        info2[0] = 0;
+        info3[0] = 0;
+        if(threw) {
+            DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "threw exception:\n");
+            DOCTEST_SNPRINTF(info3, DOCTEST_COUNTOF(info3), "  %s\n", exception.c_str());
+        } else {
+            DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "with expansion:\n");
+            DOCTEST_SNPRINTF(info3, DOCTEST_COUNTOF(info3), "  %s( %s )\n",
+                             getAssertString(assert_type), decomposition);
+        }
+
+        bool isWarn = assert_type & assertType::is_warn;
+        DOCTEST_PRINTF_COLORED(loc, Color::LightGrey);
+        DOCTEST_PRINTF_COLORED(msg,
+                               passed ? Color::BrightGreen : isWarn ? Color::Yellow : Color::Red);
+        DOCTEST_PRINTF_COLORED(info1, Color::Cyan);
+        DOCTEST_PRINTF_COLORED(info2, Color::None);
+        DOCTEST_PRINTF_COLORED(info3, Color::Cyan);
+        String context = logContext();
+        DOCTEST_PRINTF_COLORED(context.c_str(), Color::None);
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(loc) + msg + info1 + info2 + info3 + context.c_str() + "\n");
+    }
+
+    void logAssertThrows(bool threw, const char* expr, assertType::Enum assert_type,
+                         const char* file, int line) {
+        char loc[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(loc, DOCTEST_COUNTOF(loc), "%s(%d)", fileForOutput(file),
+                         lineForOutput(line));
+
+        char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), " %s!\n",
+                         threw ? "PASSED" : getFailString(assert_type));
+
+        char info1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(info1, DOCTEST_COUNTOF(info1), "  %s( %s )\n",
+                         getAssertString(assert_type), expr);
+
+        char info2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        info2[0] = 0;
+
+        if(!threw)
+            DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "didn't throw at all\n");
+
+        bool isWarn = assert_type & assertType::is_warn;
+        DOCTEST_PRINTF_COLORED(loc, Color::LightGrey);
+        DOCTEST_PRINTF_COLORED(msg,
+                               threw ? Color::BrightGreen : isWarn ? Color::Yellow : Color::Red);
+        DOCTEST_PRINTF_COLORED(info1, Color::Cyan);
+        DOCTEST_PRINTF_COLORED(info2, Color::None);
+        String context = logContext();
+        DOCTEST_PRINTF_COLORED(context.c_str(), Color::None);
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(loc) + msg + info1 + info2 + context.c_str() + "\n");
+    }
+
+    void logAssertThrowsAs(bool threw, bool threw_as, const char* as, const String& exception,
+                           const char* expr, assertType::Enum assert_type, const char* file,
+                           int line) {
+        char loc[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(loc, DOCTEST_COUNTOF(loc), "%s(%d)", fileForOutput(file),
+                         lineForOutput(line));
+
+        char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), " %s!\n",
+                         threw_as ? "PASSED" : getFailString(assert_type));
+
+        char info1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(info1, DOCTEST_COUNTOF(info1), "  %s( %s, %s )\n",
+                         getAssertString(assert_type), expr, as);
+
+        char info2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        char info3[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        info2[0] = 0;
+        info3[0] = 0;
+
+        if(!threw) { //!OCLINT inverted logic
+            DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "didn't throw at all\n");
+        } else if(!threw_as) {
+            DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "threw a different exception:\n");
+            DOCTEST_SNPRINTF(info3, DOCTEST_COUNTOF(info3), "  %s\n", exception.c_str());
+        }
+
+        bool isWarn = assert_type & assertType::is_warn;
+        DOCTEST_PRINTF_COLORED(loc, Color::LightGrey);
+        DOCTEST_PRINTF_COLORED(msg,
+                               threw_as ? Color::BrightGreen : isWarn ? Color::Yellow : Color::Red);
+        DOCTEST_PRINTF_COLORED(info1, Color::Cyan);
+        DOCTEST_PRINTF_COLORED(info2, Color::None);
+        DOCTEST_PRINTF_COLORED(info3, Color::Cyan);
+        String context = logContext();
+        DOCTEST_PRINTF_COLORED(context.c_str(), Color::None);
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(loc) + msg + info1 + info2 + info3 + context.c_str() + "\n");
+    }
+
+    void logAssertNothrow(bool threw, const String& exception, const char* expr,
+                          assertType::Enum assert_type, const char* file, int line) {
+        char loc[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(loc, DOCTEST_COUNTOF(loc), "%s(%d)", fileForOutput(file),
+                         lineForOutput(line));
+
+        char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), " %s!\n",
+                         threw ? getFailString(assert_type) : "PASSED");
+
+        char info1[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(info1, DOCTEST_COUNTOF(info1), "  %s( %s )\n",
+                         getAssertString(assert_type), expr);
+
+        char info2[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        char info3[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        info2[0] = 0;
+        info3[0] = 0;
+        if(threw) {
+            DOCTEST_SNPRINTF(info2, DOCTEST_COUNTOF(info2), "threw exception:\n");
+            DOCTEST_SNPRINTF(info3, DOCTEST_COUNTOF(info3), "  %s\n", exception.c_str());
+        }
+
+        bool isWarn = assert_type & assertType::is_warn;
+        DOCTEST_PRINTF_COLORED(loc, Color::LightGrey);
+        DOCTEST_PRINTF_COLORED(msg,
+                               threw ? isWarn ? Color::Yellow : Color::Red : Color::BrightGreen);
+        DOCTEST_PRINTF_COLORED(info1, Color::Cyan);
+        DOCTEST_PRINTF_COLORED(info2, Color::None);
+        DOCTEST_PRINTF_COLORED(info3, Color::Cyan);
+        String context = logContext();
+        DOCTEST_PRINTF_COLORED(context.c_str(), Color::None);
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(loc) + msg + info1 + info2 + info3 + context.c_str() + "\n");
+    }
+
+    ResultBuilder::ResultBuilder(assertType::Enum assert_type, const char* file, int line,
+                                 const char* expr, const char* exception_type)
+            : m_assert_type(assert_type)
+            , m_file(file)
+            , m_line(line)
+            , m_expr(expr)
+            , m_exception_type(exception_type)
+            , m_threw(false)
+            , m_threw_as(false)
+            , m_failed(false) {
+#ifdef _MSC_VER
+        if(m_expr[0] == ' ') // this happens when variadic macros are disabled under MSVC
+            ++m_expr;
+#endif // _MSC_VER
+    }
+
+    ResultBuilder::~ResultBuilder() {}
+
+    void ResultBuilder::unexpectedExceptionOccurred() {
+        m_threw = true;
+
+        m_exception = translateActiveException();
+    }
+
+    bool ResultBuilder::log() {
+        if((m_assert_type & assertType::is_warn) == 0) //!OCLINT bitwise operator in conditional
+            contextState->numAssertionsForCurrentTestcase++;
+
+        if(m_assert_type & assertType::is_throws) { //!OCLINT bitwise operator in conditional
+            m_failed = !m_threw;
+        } else if(m_assert_type & //!OCLINT bitwise operator in conditional
+                  assertType::is_throws_as) {
+            m_failed = !m_threw_as;
+        } else if(m_assert_type & //!OCLINT bitwise operator in conditional
+                  assertType::is_nothrow) {
+            m_failed = m_threw;
+        } else {
+            m_failed = m_result;
+        }
+
+        if(m_failed || contextState->success) {
+            DOCTEST_LOG_START();
+
+            if(m_assert_type & assertType::is_throws) { //!OCLINT bitwise operator in conditional
+                logAssertThrows(m_threw, m_expr, m_assert_type, m_file, m_line);
+            } else if(m_assert_type & //!OCLINT bitwise operator in conditional
+                      assertType::is_throws_as) {
+                logAssertThrowsAs(m_threw, m_threw_as, m_exception_type, m_exception, m_expr,
+                                  m_assert_type, m_file, m_line);
+            } else if(m_assert_type & //!OCLINT bitwise operator in conditional
+                      assertType::is_nothrow) {
+                logAssertNothrow(m_threw, m_exception, m_expr, m_assert_type, m_file, m_line);
+            } else {
+                logAssert(m_result.m_passed, m_result.m_decomposition.c_str(), m_threw, m_exception,
+                          m_expr, m_assert_type, m_file, m_line);
+            }
+        }
+
+        if(m_failed)
+            addFailedAssert(m_assert_type);
+
+        return m_failed && isDebuggerActive() && !contextState->no_breaks; // break into debugger
+    }
+
+    void ResultBuilder::react() const {
+        if(m_failed && checkIfShouldThrow(m_assert_type))
+            throwException();
+    }
+
+    MessageBuilder::MessageBuilder(const char* file, int line,
+                                   doctest::detail::assertType::Enum severity)
+            : m_stream(createStream())
+            , m_file(file)
+            , m_line(line)
+            , m_severity(severity) {}
+
+    bool MessageBuilder::log() {
+        DOCTEST_LOG_START();
+
+        bool is_warn = m_severity & doctest::detail::assertType::is_warn;
+
+        // warn is just a message in this context so we dont treat it as an assert
+        if(!is_warn) {
+            contextState->numAssertionsForCurrentTestcase++;
+            addFailedAssert(m_severity);
+        }
+
+        char loc[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(loc, DOCTEST_COUNTOF(loc), "%s(%d)", fileForOutput(m_file),
+                         lineForOutput(m_line));
+        char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+        DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), " %s!\n",
+                         is_warn ? "MESSAGE" : getFailString(m_severity));
+
+        DOCTEST_PRINTF_COLORED(loc, Color::LightGrey);
+        DOCTEST_PRINTF_COLORED(msg, is_warn ? Color::Yellow : Color::Red);
+
+        String info = getStreamResult(m_stream);
+        if(info.size()) {
+            DOCTEST_PRINTF_COLORED("  ", Color::None);
+            DOCTEST_PRINTF_COLORED(info.c_str(), Color::None);
+            DOCTEST_PRINTF_COLORED("\n", Color::None);
+        }
+        String context = logContext();
+        DOCTEST_PRINTF_COLORED(context.c_str(), Color::None);
+        DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+        printToDebugConsole(String(loc) + msg + "  " + info.c_str() + "\n" + context.c_str() +
+                            "\n");
+
+        return isDebuggerActive() && !contextState->no_breaks && !is_warn; // break into debugger
+    }
+
+    void MessageBuilder::react() {
+        if(m_severity & assertType::is_require) //!OCLINT bitwise operator in conditional
+            throwException();
+    }
+
+    MessageBuilder::~MessageBuilder() { freeStream(m_stream); }
+
+    // the implementation of parseFlag()
+    bool parseFlagImpl(int argc, const char* const* argv, const char* pattern) {
+        for(int i = argc - 1; i >= 0; --i) {
+            const char* temp = std::strstr(argv[i], pattern);
+            if(temp && my_strlen(temp) == my_strlen(pattern)) {
+                // eliminate strings in which the chars before the option are not '-'
+                bool noBadCharsFound = true; //!OCLINT prefer early exits and continue
+                while(temp != argv[i]) {
+                    if(*--temp != '-') {
+                        noBadCharsFound = false;
+                        break;
+                    }
+                }
+                if(noBadCharsFound && argv[i][0] == '-')
+                    return true;
+            }
+        }
+        return false;
+    }
+
+    // locates a flag on the command line
+    bool parseFlag(int argc, const char* const* argv, const char* pattern) {
+#ifndef DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS
+        if(!parseFlagImpl(argc, argv, pattern))
+            return parseFlagImpl(argc, argv, pattern + 3); // 3 for "dt-"
+        return true;
+#else  // DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS
+        return parseFlagImpl(argc, argv, pattern);
+#endif // DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS
+    }
+
+    // the implementation of parseOption()
+    bool parseOptionImpl(int argc, const char* const* argv, const char* pattern, String& res) {
+        for(int i = argc - 1; i >= 0; --i) {
+            const char* temp = std::strstr(argv[i], pattern);
+            if(temp) { //!OCLINT prefer early exits and continue
+                // eliminate matches in which the chars before the option are not '-'
+                bool        noBadCharsFound = true;
+                const char* curr            = argv[i];
+                while(curr != temp) {
+                    if(*curr++ != '-') {
+                        noBadCharsFound = false;
+                        break;
+                    }
+                }
+                if(noBadCharsFound && argv[i][0] == '-') {
+                    temp += my_strlen(pattern);
+                    unsigned len = my_strlen(temp);
+                    if(len) {
+                        res = temp;
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    // parses an option and returns the string after the '=' character
+    bool parseOption(int argc, const char* const* argv, const char* pattern, String& res,
+                     const String& defaultVal = String()) {
+        res = defaultVal;
+#ifndef DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS
+        if(!parseOptionImpl(argc, argv, pattern, res))
+            return parseOptionImpl(argc, argv, pattern + 3, res); // 3 for "dt-"
+        return true;
+#else // DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS
+        return parseOptionImpl(argc, argv, pattern, res);
+#endif // DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS
+    }
+
+    // parses a comma separated list of words after a pattern in one of the arguments in argv
+    bool parseCommaSepArgs(int argc, const char* const* argv, const char* pattern,
+                           std::vector<String>& res) {
+        String filtersString;
+        if(parseOption(argc, argv, pattern, filtersString)) {
+            // tokenize with "," as a separator
+            // cppcheck-suppress strtokCalled
+            char* pch = std::strtok(filtersString.c_str(), ","); // modifies the string
+            while(pch != 0) {
+                if(my_strlen(pch))
+                    res.push_back(pch);
+                // uses the strtok() internal state to go to the next token
+                // cppcheck-suppress strtokCalled
+                pch = std::strtok(0, ",");
+            }
+            return true;
+        }
+        return false;
+    }
+
+    enum optionType
+    {
+        option_bool,
+        option_int
+    };
+
+    // parses an int/bool option from the command line
+    bool parseIntOption(int argc, const char* const* argv, const char* pattern, optionType type,
+                        int& res) {
+        String parsedValue;
+        if(!parseOption(argc, argv, pattern, parsedValue))
+            return false;
+
+        if(type == 0) {
+            // boolean
+            const char positive[][5] = {"1", "true", "on", "yes"};  // 5 - strlen("true") + 1
+            const char negative[][6] = {"0", "false", "off", "no"}; // 6 - strlen("false") + 1
+
+            // if the value matches any of the positive/negative possibilities
+            for(unsigned i = 0; i < 4; i++) {
+                if(parsedValue.compare(positive[i], true) == 0) {
+                    res = 1; //!OCLINT parameter reassignment
+                    return true;
+                }
+                if(parsedValue.compare(negative[i], true) == 0) {
+                    res = 0; //!OCLINT parameter reassignment
+                    return true;
+                }
+            }
+        } else {
+            // integer
+            int theInt = std::atoi(parsedValue.c_str()); // NOLINT
+            if(theInt != 0) {
+                res = theInt; //!OCLINT parameter reassignment
+                return true;
+            }
+        }
+        return false;
+    }
+
+    void printVersion() {
+        if(contextState->no_version == false) {
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+            std::printf("doctest version is \"%s\"\n", DOCTEST_VERSION_STR);
+        }
+    }
+
+    void printHelp() {
+        printVersion();
+        // clang-format off
+        DOCTEST_PRINTF_COLORED("[doctest]\n", Color::Cyan);
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("boolean values: \"1/on/yes/true\" or \"0/off/no/false\"\n");
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("filter  values: \"str1,str2,str3\" (comma separated strings)\n");
+        DOCTEST_PRINTF_COLORED("[doctest]\n", Color::Cyan);
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("filters use wildcards for matching strings\n");
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("something passes a filter if any of the strings in a filter matches\n");
+        DOCTEST_PRINTF_COLORED("[doctest]\n", Color::Cyan);
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("ALL FLAGS, OPTIONS AND FILTERS ALSO AVAILABLE WITH A \"dt-\" PREFIX!!!\n");
+        DOCTEST_PRINTF_COLORED("[doctest]\n", Color::Cyan);
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("Query flags - the program quits after them. Available:\n\n");
+        std::printf(" -?,   --help, -h                      prints this message\n");
+        std::printf(" -v,   --version                       prints the version\n");
+        std::printf(" -c,   --count                         prints the number of matching tests\n");
+        std::printf(" -ltc, --list-test-cases               lists all matching tests by name\n");
+        std::printf(" -lts, --list-test-suites              lists all matching test suites\n\n");
+        // ========================================================================================= << 79
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("The available <int>/<string> options/filters are:\n\n");
+        std::printf(" -tc,  --test-case=<filters>           filters     tests by their name\n");
+        std::printf(" -tce, --test-case-exclude=<filters>   filters OUT tests by their name\n");
+        std::printf(" -sf,  --source-file=<filters>         filters     tests by their file\n");
+        std::printf(" -sfe, --source-file-exclude=<filters> filters OUT tests by their file\n");
+        std::printf(" -ts,  --test-suite=<filters>          filters     tests by their test suite\n");
+        std::printf(" -tse, --test-suite-exclude=<filters>  filters OUT tests by their test suite\n");
+        std::printf(" -sc,  --subcase=<filters>             filters     subcases by their name\n");
+        std::printf(" -sce, --subcase-exclude=<filters>     filters OUT subcases by their name\n");
+        std::printf(" -ob,  --order-by=<string>             how the tests should be ordered\n");
+        std::printf("                                       <string> - by [file/suite/name/rand]\n");
+        std::printf(" -rs,  --rand-seed=<int>               seed for random ordering\n");
+        std::printf(" -f,   --first=<int>                   the first test passing the filters to\n");
+        std::printf("                                       execute - for range-based execution\n");
+        std::printf(" -l,   --last=<int>                    the last test passing the filters to\n");
+        std::printf("                                       execute - for range-based execution\n");
+        std::printf(" -aa,  --abort-after=<int>             stop after <int> failed assertions\n");
+        std::printf(" -scfl,--subcase-filter-levels=<int>   apply filters for the first <int> levels\n");
+        DOCTEST_PRINTF_COLORED("\n[doctest] ", Color::Cyan);
+        std::printf("Bool options - can be used like flags and true is assumed. Available:\n\n");
+        std::printf(" -s,   --success=<bool>                include successful assertions in output\n");
+        std::printf(" -cs,  --case-sensitive=<bool>         filters being treated as case sensitive\n");
+        std::printf(" -e,   --exit=<bool>                   exits after the tests finish\n");
+        std::printf(" -d,   --duration=<bool>               prints the time duration of each test\n");
+        std::printf(" -nt,  --no-throw=<bool>               skips exceptions-related assert checks\n");
+        std::printf(" -ne,  --no-exitcode=<bool>            returns (or exits) always with success\n");
+        std::printf(" -nr,  --no-run=<bool>                 skips all runtime doctest operations\n");
+        std::printf(" -nv,  --no-version=<bool>             omit the framework version in the output\n");
+        std::printf(" -nc,  --no-colors=<bool>              disables colors in output\n");
+        std::printf(" -fc,  --force-colors=<bool>           use colors even when not in a tty\n");
+        std::printf(" -nb,  --no-breaks=<bool>              disables breakpoints in debuggers\n");
+        std::printf(" -ns,  --no-skip=<bool>                don't skip test cases marked as skip\n");
+        std::printf(" -npf, --no-path-filenames=<bool>      only filenames and no paths in output\n");
+        std::printf(" -nln, --no-line-numbers=<bool>        0 instead of real line numbers in output\n");
+        // ========================================================================================= << 79
+        // clang-format on
+
+        DOCTEST_PRINTF_COLORED("\n[doctest] ", Color::Cyan);
+        std::printf("for more information visit the project documentation\n\n");
+    }
+
+    void printSummary() {
+        const ContextState* p = contextState;
+
+        DOCTEST_PRINTF_COLORED(getSeparator(), Color::Yellow);
+        if(p->count || p->list_test_cases) {
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+            std::printf("unskipped test cases passing the current filters: %u\n",
+                        p->numTestsPassingFilters);
+        } else if(p->list_test_suites) {
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+            std::printf("unskipped test cases passing the current filters: %u\n",
+                        p->numTestsPassingFilters);
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+            std::printf("test suites with unskipped test cases passing the current filters: %u\n",
+                        p->numTestSuitesPassingFilters);
+        } else {
+            bool anythingFailed = p->numFailed > 0 || p->numFailedAssertions > 0;
+
+            char buff[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "test cases: %6u",
+                             p->numTestsPassingFilters);
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), " | ");
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "%6d passed",
+                             p->numTestsPassingFilters - p->numFailed);
+            DOCTEST_PRINTF_COLORED(buff,
+                                   (p->numTestsPassingFilters == 0 || anythingFailed) ?
+                                           Color::None :
+                                           Color::Green);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), " | ");
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "%6u failed", p->numFailed);
+            DOCTEST_PRINTF_COLORED(buff, p->numFailed > 0 ? Color::Red : Color::None);
+
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), " | ");
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            if(p->no_skipped_summary == false) {
+                int numSkipped = static_cast<unsigned>(getRegisteredTests().size()) -
+                                 p->numTestsPassingFilters;
+                DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "%6d skipped", numSkipped);
+                DOCTEST_PRINTF_COLORED(buff, numSkipped == 0 ? Color::None : Color::Yellow);
+            }
+            DOCTEST_PRINTF_COLORED("\n", Color::None);
+
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "assertions: %6d", p->numAssertions);
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), " | ");
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "%6d passed",
+                             p->numAssertions - p->numFailedAssertions);
+            DOCTEST_PRINTF_COLORED(
+                    buff, (p->numAssertions == 0 || anythingFailed) ? Color::None : Color::Green);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), " | ");
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), "%6d failed", p->numFailedAssertions);
+            DOCTEST_PRINTF_COLORED(buff, p->numFailedAssertions > 0 ? Color::Red : Color::None);
+
+            DOCTEST_SNPRINTF(buff, DOCTEST_COUNTOF(buff), " |\n");
+            DOCTEST_PRINTF_COLORED(buff, Color::None);
+
+            DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+            DOCTEST_PRINTF_COLORED("Status: ", Color::None);
+            const char* result = (p->numFailed > 0) ? "FAILURE!\n" : "SUCCESS!\n";
+            DOCTEST_PRINTF_COLORED(result, p->numFailed > 0 ? Color::Red : Color::Green);
+        }
+
+        // remove any coloring
+        DOCTEST_PRINTF_COLORED("", Color::None);
+    }
+} // namespace detail
+
+bool isRunningInTest() { return detail::contextState != 0; }
+
+Context::Context(int argc, const char* const* argv)
+        : p(new detail::ContextState) {
+    parseArgs(argc, argv, true);
+}
+
+Context::~Context() { delete p; }
+
+void Context::applyCommandLine(int argc, const char* const* argv) { parseArgs(argc, argv); }
+
+// parses args
+void Context::parseArgs(int argc, const char* const* argv, bool withDefaults) {
+    using namespace detail;
+
+    // clang-format off
+    parseCommaSepArgs(argc, argv, "dt-source-file=",        p->filters[0]);
+    parseCommaSepArgs(argc, argv, "dt-sf=",                 p->filters[0]);
+    parseCommaSepArgs(argc, argv, "dt-source-file-exclude=",p->filters[1]);
+    parseCommaSepArgs(argc, argv, "dt-sfe=",                p->filters[1]);
+    parseCommaSepArgs(argc, argv, "dt-test-suite=",         p->filters[2]);
+    parseCommaSepArgs(argc, argv, "dt-ts=",                 p->filters[2]);
+    parseCommaSepArgs(argc, argv, "dt-test-suite-exclude=", p->filters[3]);
+    parseCommaSepArgs(argc, argv, "dt-tse=",                p->filters[3]);
+    parseCommaSepArgs(argc, argv, "dt-test-case=",          p->filters[4]);
+    parseCommaSepArgs(argc, argv, "dt-tc=",                 p->filters[4]);
+    parseCommaSepArgs(argc, argv, "dt-test-case-exclude=",  p->filters[5]);
+    parseCommaSepArgs(argc, argv, "dt-tce=",                p->filters[5]);
+    parseCommaSepArgs(argc, argv, "dt-subcase=",            p->filters[6]);
+    parseCommaSepArgs(argc, argv, "dt-sc=",                 p->filters[6]);
+    parseCommaSepArgs(argc, argv, "dt-subcase-exclude=",    p->filters[7]);
+    parseCommaSepArgs(argc, argv, "dt-sce=",                p->filters[7]);
+    // clang-format on
+
+    int    intRes = 0;
+    String strRes;
+
+#define DOCTEST_PARSE_AS_BOOL_OR_FLAG(name, sname, var, default)                                   \
+    if(parseIntOption(argc, argv, DOCTEST_STR_CONCAT_TOSTR(name, =), option_bool, intRes) ||       \
+       parseIntOption(argc, argv, DOCTEST_STR_CONCAT_TOSTR(sname, =), option_bool, intRes))        \
+        p->var = !!intRes;                                                                         \
+    else if(parseFlag(argc, argv, #name) || parseFlag(argc, argv, #sname))                         \
+        p->var = true;                                                                             \
+    else if(withDefaults)                                                                          \
+    p->var = default
+
+#define DOCTEST_PARSE_INT_OPTION(name, sname, var, default)                                        \
+    if(parseIntOption(argc, argv, DOCTEST_STR_CONCAT_TOSTR(name, =), option_int, intRes) ||        \
+       parseIntOption(argc, argv, DOCTEST_STR_CONCAT_TOSTR(sname, =), option_int, intRes))         \
+        p->var = intRes;                                                                           \
+    else if(withDefaults)                                                                          \
+    p->var = default
+
+#define DOCTEST_PARSE_STR_OPTION(name, sname, var, default)                                        \
+    if(parseOption(argc, argv, DOCTEST_STR_CONCAT_TOSTR(name, =), strRes, default) ||              \
+       parseOption(argc, argv, DOCTEST_STR_CONCAT_TOSTR(sname, =), strRes, default) ||             \
+       withDefaults)                                                                               \
+    p->var = strRes
+
+    // clang-format off
+    DOCTEST_PARSE_STR_OPTION(dt-order-by, dt-ob, order_by, "file");
+    DOCTEST_PARSE_INT_OPTION(dt-rand-seed, dt-rs, rand_seed, 0);
+
+    DOCTEST_PARSE_INT_OPTION(dt-first, dt-f, first, 1);
+    DOCTEST_PARSE_INT_OPTION(dt-last, dt-l, last, 0);
+
+    DOCTEST_PARSE_INT_OPTION(dt-abort-after, dt-aa, abort_after, 0);
+    DOCTEST_PARSE_INT_OPTION(dt-subcase-filter-levels, dt-scfl, subcase_filter_levels, 2000000000);
+
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-success, dt-s, success, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-case-sensitive, dt-cs, case_sensitive, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-exit, dt-e, exit, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-duration, dt-d, duration, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-throw, dt-nt, no_throw, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-exitcode, dt-ne, no_exitcode, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-run, dt-nr, no_run, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-version, dt-nv, no_version, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-colors, dt-nc, no_colors, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-force-colors, dt-fc, force_colors, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-breaks, dt-nb, no_breaks, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-skip, dt-ns, no_skip, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-path-filenames, dt-npf, no_path_in_filenames, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-line-numbers, dt-nln, no_line_numbers, false);
+    DOCTEST_PARSE_AS_BOOL_OR_FLAG(dt-no-skipped-summary, dt-nss, no_skipped_summary, false);
+// clang-format on
+
+#undef DOCTEST_PARSE_STR_OPTION
+#undef DOCTEST_PARSE_INT_OPTION
+#undef DOCTEST_PARSE_AS_BOOL_OR_FLAG
+
+    if(withDefaults) {
+        p->help             = false;
+        p->version          = false;
+        p->count            = false;
+        p->list_test_cases  = false;
+        p->list_test_suites = false;
+    }
+    if(parseFlag(argc, argv, "dt-help") || parseFlag(argc, argv, "dt-h") ||
+       parseFlag(argc, argv, "dt-?")) {
+        p->help = true;
+        p->exit = true;
+    }
+    if(parseFlag(argc, argv, "dt-version") || parseFlag(argc, argv, "dt-v")) {
+        p->version = true;
+        p->exit    = true;
+    }
+    if(parseFlag(argc, argv, "dt-count") || parseFlag(argc, argv, "dt-c")) {
+        p->count = true;
+        p->exit  = true;
+    }
+    if(parseFlag(argc, argv, "dt-list-test-cases") || parseFlag(argc, argv, "dt-ltc")) {
+        p->list_test_cases = true;
+        p->exit            = true;
+    }
+    if(parseFlag(argc, argv, "dt-list-test-suites") || parseFlag(argc, argv, "dt-lts")) {
+        p->list_test_suites = true;
+        p->exit             = true;
+    }
+}
+
+// allows the user to add procedurally to the filters from the command line
+void Context::addFilter(const char* filter, const char* value) { setOption(filter, value); }
+
+// allows the user to clear all filters from the command line
+void Context::clearFilters() {
+    for(unsigned i = 0; i < p->filters.size(); ++i)
+        p->filters[i].clear();
+}
+
+// allows the user to override procedurally the int/bool options from the command line
+void Context::setOption(const char* option, int value) {
+    setOption(option, toString(value).c_str());
+}
+
+// allows the user to override procedurally the string options from the command line
+void Context::setOption(const char* option, const char* value) {
+    String      argv   = String("-") + option + "=" + value;
+    const char* lvalue = argv.c_str();
+    parseArgs(1, &lvalue);
+}
+
+// users should query this in their main() and exit the program if true
+bool Context::shouldExit() { return p->exit; }
+
+// the main function that does all the filtering and test running
+int Context::run() {
+    using namespace detail;
+
+    Color::init();
+
+    contextState = p;
+    p->resetRunData();
+
+    // handle version, help and no_run
+    if(p->no_run || p->version || p->help) {
+        if(p->version)
+            printVersion();
+        if(p->help)
+            printHelp();
+
+        contextState = 0;
+
+        return EXIT_SUCCESS;
+    }
+
+    printVersion();
+    DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+    std::printf("run with \"--help\" for options\n");
+
+    unsigned i = 0; // counter used for loops - here for VC6
+
+    std::set<TestCase>& registeredTests = getRegisteredTests();
+
+    std::vector<const TestCase*> testArray;
+    for(std::set<TestCase>::iterator it = registeredTests.begin(); it != registeredTests.end();
+        ++it)
+        testArray.push_back(&(*it));
+
+    // sort the collected records
+    if(!testArray.empty()) {
+        if(p->order_by.compare("file", true) == 0) {
+            std::qsort(&testArray[0], testArray.size(), sizeof(TestCase*), fileOrderComparator);
+        } else if(p->order_by.compare("suite", true) == 0) {
+            std::qsort(&testArray[0], testArray.size(), sizeof(TestCase*), suiteOrderComparator);
+        } else if(p->order_by.compare("name", true) == 0) {
+            std::qsort(&testArray[0], testArray.size(), sizeof(TestCase*), nameOrderComparator);
+        } else if(p->order_by.compare("rand", true) == 0) {
+            std::srand(p->rand_seed);
+
+            // random_shuffle implementation
+            const TestCase** first = &testArray[0];
+            for(i = testArray.size() - 1; i > 0; --i) {
+                int idxToSwap = std::rand() % (i + 1); // NOLINT
+
+                const TestCase* temp = first[i];
+
+                first[i]         = first[idxToSwap];
+                first[idxToSwap] = temp;
+            }
+        }
+    }
+
+    if(p->list_test_cases) {
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("listing all test case names\n");
+        DOCTEST_PRINTF_COLORED(getSeparator(), Color::Yellow);
+    }
+
+    std::set<String> testSuitesPassingFilters;
+    if(p->list_test_suites) {
+        DOCTEST_PRINTF_COLORED("[doctest] ", Color::Cyan);
+        std::printf("listing all test suites\n");
+        DOCTEST_PRINTF_COLORED(getSeparator(), Color::Yellow);
+    }
+
+    // invoke the registered functions if they match the filter criteria (or just count them)
+    for(i = 0; i < testArray.size(); i++) {
+        const TestCase& data = *testArray[i];
+
+        if(data.m_skip && !p->no_skip)
+            continue;
+
+        if(!matchesAny(data.m_file, p->filters[0], 1, p->case_sensitive))
+            continue;
+        if(matchesAny(data.m_file, p->filters[1], 0, p->case_sensitive))
+            continue;
+        if(!matchesAny(data.m_test_suite, p->filters[2], 1, p->case_sensitive))
+            continue;
+        if(matchesAny(data.m_test_suite, p->filters[3], 0, p->case_sensitive))
+            continue;
+        if(!matchesAny(data.m_name, p->filters[4], 1, p->case_sensitive))
+            continue;
+        if(matchesAny(data.m_name, p->filters[5], 0, p->case_sensitive))
+            continue;
+
+        p->numTestsPassingFilters++;
+
+        // do not execute the test if we are to only count the number of filter passing tests
+        if(p->count)
+            continue;
+
+        // print the name of the test and don't execute it
+        if(p->list_test_cases) {
+            std::printf("%s\n", data.m_name);
+            continue;
+        }
+
+        // print the name of the test suite if not done already and don't execute it
+        if(p->list_test_suites) {
+            if((testSuitesPassingFilters.count(data.m_test_suite) == 0) &&
+               data.m_test_suite[0] != '\0') {
+                std::printf("%s\n", data.m_test_suite);
+                testSuitesPassingFilters.insert(data.m_test_suite);
+                p->numTestSuitesPassingFilters++;
+            }
+            continue;
+        }
+
+        // skip the test if it is not in the execution range
+        if((p->last < p->numTestsPassingFilters && p->first <= p->last) ||
+           (p->first > p->numTestsPassingFilters))
+            continue;
+
+        // execute the test if it passes all the filtering
+        {
+            p->currentTest = &data;
+
+            bool failed                              = false;
+            p->hasLoggedCurrentTestStart             = false;
+            p->numFailedAssertionsForCurrentTestcase = 0;
+            p->subcasesPassed.clear();
+            double duration = 0;
+            Timer  timer;
+            timer.start();
+            do {
+                // if the start has been logged from a previous iteration of this loop
+                if(p->hasLoggedCurrentTestStart)
+                    logTestEnd();
+                p->hasLoggedCurrentTestStart = false;
+
+                // if logging successful tests - force the start log
+                if(p->success)
+                    DOCTEST_LOG_START();
+
+                // reset the assertion state
+                p->numAssertionsForCurrentTestcase = 0;
+                p->hasCurrentTestFailed            = false;
+
+                // reset some of the fields for subcases (except for the set of fully passed ones)
+                p->subcasesHasSkipped   = false;
+                p->subcasesCurrentLevel = 0;
+                p->subcasesEnteredLevels.clear();
+
+                // reset stuff for logging with INFO()
+                p->exceptionalContexts.clear();
+
+// execute the test
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+                try {
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+                    FatalConditionHandler fatalConditionHandler; // Handle signals
+                    data.m_test();
+                    fatalConditionHandler.reset();
+                    if(contextState->hasCurrentTestFailed)
+                        failed = true;
+#ifndef DOCTEST_CONFIG_NO_EXCEPTIONS
+                } catch(const TestFailureException&) { failed = true; } catch(...) {
+                    DOCTEST_LOG_START();
+                    logTestException(translateActiveException());
+                    failed = true;
+                }
+#endif // DOCTEST_CONFIG_NO_EXCEPTIONS
+
+                p->numAssertions += p->numAssertionsForCurrentTestcase;
+
+                // exit this loop if enough assertions have failed
+                if(p->abort_after > 0 && p->numFailedAssertions >= p->abort_after) {
+                    p->subcasesHasSkipped = false;
+                    DOCTEST_PRINTF_COLORED("Aborting - too many failed asserts!\n", Color::Red);
+                }
+
+            } while(p->subcasesHasSkipped == true);
+
+            duration = timer.getElapsedSeconds();
+
+            if(Approx(p->currentTest->m_timeout).epsilon(DBL_EPSILON) != 0 &&
+               Approx(duration).epsilon(DBL_EPSILON) > p->currentTest->m_timeout) {
+                failed = true;
+                DOCTEST_LOG_START();
+                char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+                DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg),
+                                 "Test case exceeded time limit of %.6f!\n",
+                                 p->currentTest->m_timeout);
+                DOCTEST_PRINTF_COLORED(msg, Color::Red);
+            }
+
+            if(p->duration) {
+                char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+                DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg), "%.6f s: %s\n", duration,
+                                 p->currentTest->m_name);
+                DOCTEST_PRINTF_COLORED(msg, Color::None);
+            }
+
+            if(data.m_should_fail) {
+                DOCTEST_LOG_START();
+                if(failed) {
+                    failed = false;
+                    DOCTEST_PRINTF_COLORED("Failed as expected so marking it as not failed\n",
+                                           Color::Yellow);
+                } else {
+                    failed = true;
+                    DOCTEST_PRINTF_COLORED("Should have failed but didn't! Marking it as failed!\n",
+                                           Color::Red);
+                }
+            } else if(failed && data.m_may_fail) {
+                DOCTEST_LOG_START();
+                failed = false;
+                DOCTEST_PRINTF_COLORED("Allowed to fail so marking it as not failed\n",
+                                       Color::Yellow);
+            } else if(data.m_expected_failures > 0) {
+                DOCTEST_LOG_START();
+                char msg[DOCTEST_SNPRINTF_BUFFER_LENGTH];
+                if(p->numFailedAssertionsForCurrentTestcase == data.m_expected_failures) {
+                    failed = false;
+                    DOCTEST_SNPRINTF(
+                            msg, DOCTEST_COUNTOF(msg),
+                            "Failed exactly %d times as expected so marking it as not failed!\n",
+                            data.m_expected_failures);
+                    DOCTEST_PRINTF_COLORED(msg, Color::Yellow);
+                } else {
+                    failed = true;
+                    DOCTEST_SNPRINTF(msg, DOCTEST_COUNTOF(msg),
+                                     "Didn't fail exactly %d times so marking it as failed!\n",
+                                     data.m_expected_failures);
+                    DOCTEST_PRINTF_COLORED(msg, Color::Red);
+                }
+            }
+
+            if(p->hasLoggedCurrentTestStart)
+                logTestEnd();
+
+            if(failed) // if any subcase has failed - the whole test case has failed
+                p->numFailed++;
+
+            // stop executing tests if enough assertions have failed
+            if(p->abort_after > 0 && p->numFailedAssertions >= p->abort_after)
+                break;
+        }
+    }
+
+    printSummary();
+
+    contextState = 0;
+
+    if(p->numFailed && !p->no_exitcode)
+        return EXIT_FAILURE;
+    return EXIT_SUCCESS;
+}
+} // namespace doctest
+
+#endif // DOCTEST_CONFIG_DISABLE
+
+#ifdef DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+int main(int argc, char** argv) { return doctest::Context(argc, argv).run(); }
+#endif // DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+
+#endif // DOCTEST_LIBRARY_IMPLEMENTATION
+#endif // DOCTEST_CONFIG_IMPLEMENT
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif // __clang__
+
+#if defined(__GNUC__) && !defined(__clang__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)
+#pragma GCC diagnostic pop
+#endif // > gcc 4.6
+#endif // __GNUC__
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif // _MSC_VER
diff --git a/src/test/unittests.h b/src/test/unittests.h
index 18b371ebf..13be1b9c0 100644
--- a/src/test/unittests.h
+++ b/src/test/unittests.h
@@ -21,6 +21,32 @@
 #ifndef UNITTESTS_H
 #define UNITTESTS_H
 
+#include "localconsts.h"
+
+#ifdef UNITTESTS_CATCH
 #include "test/catch.hpp"
+#endif  // UNITTESTS_CATCH
+
+#ifdef UNITTESTS_DOCTEST
+
+#ifdef __GNUC__
+#if GCC_VERSION >= 50000
+#define PRAGMA5(str) _Pragma(#str)
+#elif defined(__clang__)
+#define PRAGMA5(str) _Pragma(#str)
+#else  // GCC_VERSION > 50000
+#define PRAGMA5(str)
+#endif  // GCC_VERSION > 50000
+#endif  // __GNUC__
+
+PRAGMA5(GCC diagnostic push)
+PRAGMA5(GCC diagnostic ignored "-Wsuggest-override")
+#include "test/doctest.h"
+PRAGMA5(GCC diagnostic pop)
+
+#undef TEST_CASE
+#define TEST_CASE(name, tags) DOCTEST_TEST_CASE(tags " " name)
+#define SECTION(name) DOCTEST_SUBCASE(name)
+#endif  // UNITTESTS_DOCTEST
 
 #endif  // UNITTESTS_H