1 files changed, 110 insertions, 0 deletions
diff --git a/src/ints/wrap.hpp b/src/ints/wrap.hpp
new file mode 100644
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--- /dev/null
+++ b/src/ints/wrap.hpp
@@ -0,0 +1,110 @@
+#pragma once
+//    wrap.hpp - basic integer wrapper classes
+//
+//    Copyright © 2014 Ben Longbons <b.r.longbons@gmail.com>
+//
+//    This file is part of The Mana World (Athena server)
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "fwd.hpp"
+
+#include <cstdint>
+
+#include <type_traits>
+
+
+namespace tmwa
+{
+namespace ints
+{
+    namespace wrapped
+    {
+        template<class R>
+        struct Wrapped
+        {
+            typedef R wrapped_type;
+            R _value;
+        protected:
+            constexpr
+            Wrapped(uint32_t v=0)
+            : _value(v)
+            {}
+        public:
+            explicit
+            operator bool () const { return _value; }
+            bool operator !() const { return !_value; }
+        };
+
+        template<class W, typename=typename W::wrapped_type>
+        bool operator == (W l, W r)
+        {
+            return l._value == r._value;
+        }
+        template<class W, typename=typename W::wrapped_type>
+        bool operator != (W l, W r)
+        {
+            return l._value != r._value;
+        }
+        template<class W, typename=typename W::wrapped_type>
+        bool operator < (W l, W r)
+        {
+            return l._value < r._value;
+        }
+
+        template<class T>
+        constexpr
+        typename T::wrapped_type unwrap(typename std::enable_if<true, T>::type w)
+        {
+            return w._value;
+        }
+        template<class T>
+        constexpr
+        T wrap(typename T::wrapped_type v)
+        {
+            struct Sub : T
+            {
+                constexpr
+                Sub(typename T::wrapped_type v2)
+                : T(v2)
+                {}
+            };
+            return Sub(v);
+        }
+
+        template<class W>
+        constexpr
+        W next(W w)
+        {
+            return wrap<W>(unwrap<W>(w) + 1);
+        }
+        template<class W>
+        constexpr
+        W prev(W w)
+        {
+            return wrap<W>(unwrap<W>(w) - 1);
+        }
+
+        template<class R>
+        R convert_for_printf(Wrapped<R> w)
+        {
+            return w._value;
+        }
+    } // namespace wrapped
+} // namespace ints
+
+using ints::wrapped::Wrapped;
+using ints::wrapped::unwrap;
+using ints::wrapped::wrap;
+} // namespace tmwa