1 #ifndef BOOST_CORE_IS_SAME_HPP_INCLUDED 2 #define BOOST_CORE_IS_SAME_HPP_INCLUDED 3 4 // MS compatible compilers support #pragma once 5 6 #if defined(_MSC_VER) && (_MSC_VER >= 1020) 7 # pragma once 8 #endif 9 10 // is_same<T1,T2>::value is true when T1 == T2 11 // 12 // Copyright 2014 Peter Dimov 13 // 14 // Distributed under the Boost Software License, Version 1.0. 15 // See accompanying file LICENSE_1_0.txt or copy at 16 // http://www.boost.org/LICENSE_1_0.txt 17 18 #include <boost/config.hpp> 19 20 namespace boost 21 { 22 23 namespace core 24 { 25 26 template< class T1, class T2 > struct is_same 27 { 28 BOOST_STATIC_CONSTANT( bool, value = false ); 29 }; 30 31 template< class T > struct is_same< T, T > 32 { 33 BOOST_STATIC_CONSTANT( bool, value = true ); 34 }; 35 36 } // namespace core 37 38 } // namespace boost 39 40 #endif // #ifndef BOOST_CORE_IS_SAME_HPP_INCLUDED 41