1 2#ifndef BOOST_MPL_SAME_AS_HPP_INCLUDED 3#define BOOST_MPL_SAME_AS_HPP_INCLUDED 4 5// Copyright Aleksey Gurtovoy 2000-2004 6// 7// Distributed under the Boost Software License, Version 1.0. 8// (See accompanying file LICENSE_1_0.txt or copy at 9// http://www.boost.org/LICENSE_1_0.txt) 10// 11// See http://www.boost.org/libs/mpl for documentation. 12 13// $Id: same_as.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ 14// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $ 15// $Revision: 49267 $ 16 17#include <boost/mpl/not.hpp> 18#include <boost/mpl/aux_/lambda_spec.hpp> 19#include <boost/mpl/aux_/config/forwarding.hpp> 20 21#include <boost/type_traits/is_same.hpp> 22 23namespace boost { namespace mpl { 24 25template< typename T1 > 26struct same_as 27{ 28 template< typename T2 > struct apply 29#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) 30 : is_same<T1,T2> 31 { 32#else 33 { 34 typedef typename is_same<T1,T2>::type type; 35#endif 36 }; 37}; 38 39template< typename T1 > 40struct not_same_as 41{ 42 template< typename T2 > struct apply 43#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) 44 : not_< is_same<T1,T2> > 45 { 46#else 47 { 48 typedef typename not_< is_same<T1,T2> >::type type; 49#endif 50 }; 51}; 52 53}} 54 55#endif // BOOST_MPL_SAME_AS_HPP_INCLUDED 56