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/// return wrappers for unexpected NULL pointers
#ifndef SANITY_HPP
#define SANITY_HPP
# ifndef __cplusplus
# error "Please compile in C++ mode"
# endif // __cplusplus
# if __GNUC__ < 4
# error "Your compiler is absolutely ancient. You have no chance ..."
# endif // __GNUC__ < 4
/// Convert type assumptions to use the standard types here
# include <cstdint>
/// size_t, NULL
# include <cstddef>
# if __GNUC__ == 4
// clang identifies as GCC 4.2, but is mostly okay.
// Until a bug-free release of it happens, though, I won't recommend it.
// (patched) clang 3.1 would be the requirement
# if __GNUC_MINOR__ < 6 && !defined(__clang__)
# error "Please upgrade to at least GCC 4.6"
# endif // __GNUC_MINOR__ < 6 && !defined(__clang__)
// temporary workaround for library issues
// since __GLIBCXX__ is hard to use
# if __GNUC_MINOR__ == 6
# define WORKAROUND_GCC46_COMPILER
# endif // __GNUC_MINOR__ == 6
# ifdef __GLIBCXX__
// versions of libstdc++ from gcc
// 4.6.0, 4.6.1, 4.6.2, 4.6.3
# if __GLIBCXX__ == 20110325 \
|| __GLIBCXX__ == 20110627 \
|| __GLIBCXX__ == 20111026 \
|| __GLIBCXX__ == 20120301 \
|| __GLIBCXX__ == 20121127 // prerelease in Debian wheezy
# define WORKAROUND_GCC46_LIBRARY
# endif // __GLIBCXX__ == ...
# endif // defined __GLIBCXX__
# if defined(WORKAROUND_GCC46_COMPILER) \
&& !defined(WORKAROUND_GCC46_LIBRARY)
# error "Unknown gcc 4.6.x release"
# endif // compiler and not library
# endif // __GNUC__ == 4
# ifndef __i386__
// Known platform dependencies:
// endianness for the [RW]FIFO.* macros
// possibly, some signal-handling
# error "Unsupported platform"
# endif // not __i386__
# ifdef __x86_64__
// I'm working on it - I know there are some pointer-size assumptions.
# error "Sorry, this code is believed not to be 64-bit safe"
# error "please compile with -m32"
# endif // __x86_64__
#endif // SANITY_HPP
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