Imported Upstream version 1.49.0upstream/1.49.0

1 files changed, 145 insertions, 0 deletions

diff --git a/boost/interprocess/detail/type_traits.hpp b/boost/interprocess/detail/type_traits.hpp
new file mode 100644
index 0000000000..2cfa0be291
--- /dev/null
+++ b/boost/interprocess/detail/type_traits.hpp
@@ -0,0 +1,145 @@
+//////////////////////////////////////////////////////////////////////////////
+// (C) Copyright John Maddock 2000.
+// (C) Copyright Ion Gaztanaga 2005-2011.
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/interprocess for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTERPROCESS_DETAIL_TYPE_TRAITS_HPP
+#define BOOST_INTERPROCESS_DETAIL_TYPE_TRAITS_HPP
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+#  pragma once
+#endif
+
+#include <boost/interprocess/detail/config_begin.hpp>
+
+namespace boost {
+namespace interprocess { 
+namespace ipcdetail {
+
+struct nat{};
+
+template<class T>
+struct remove_reference
+{
+   typedef T type;
+};
+
+template<class T>
+struct remove_reference<T&>
+{
+   typedef T type;
+};
+
+template<class T>
+struct is_reference
+{
+   static const bool value = false;
+};
+
+template<class T>
+struct is_reference<T&>
+{
+   static const bool value = true;
+};
+
+template<class T>
+struct is_pointer
+{
+   static const bool value = false;
+};
+
+template<class T>
+struct is_pointer<T*>
+{
+   static const bool value = true;
+};
+
+template <typename T>
+struct add_reference
+{
+    typedef T& type;
+};
+
+template<class T>
+struct add_reference<T&>
+{
+    typedef T& type;
+};
+
+template<>
+struct add_reference<void>
+{
+    typedef nat &type;
+};
+
+template<>
+struct add_reference<const void>
+{
+    typedef const nat &type;
+};
+
+template <class T>
+struct add_const_reference
+{  typedef const T &type;   };
+
+template <class T>
+struct add_const_reference<T&>
+{  typedef T& type;   };
+
+template<class T>
+struct remove_const
+{
+   typedef T type;
+};
+
+template<class T>
+struct remove_const<const T>
+{
+   typedef T type;
+};
+
+template<class T>
+struct remove_volatile
+{
+   typedef T type;
+};
+
+template<class T>
+struct remove_volatile<volatile T>
+{
+   typedef T type;
+};
+
+template <typename T, typename U>
+struct is_same
+{
+   typedef char yes_type;
+   struct no_type
+   {
+      char padding[8];
+   };
+
+   template <typename V>
+   static yes_type is_same_tester(V*, V*);
+   static no_type is_same_tester(...);
+
+   static T *t;
+   static U *u;
+
+   static const bool value = sizeof(yes_type) == sizeof(is_same_tester(t,u));
+};
+
+} // namespace ipcdetail
+}  //namespace interprocess { 
+}  //namespace boost {
+
+#include <boost/interprocess/detail/config_end.hpp>
+
+#endif   //#ifndef BOOST_INTERPROCESS_DETAIL_TYPE_TRAITS_HPP