47 lines
1.4 KiB
Plaintext
47 lines
1.4 KiB
Plaintext
|
/*=============================================================================
|
||
|
|
Copyright (c) 2001-2011 Joel de Guzman
|
||
|
|
Copyright (c) 2006 Dan Marsden
|
||
|
|
|
||
|
|
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)
|
||
|
|
==============================================================================*/
|
||
|
|
#if !defined (BOOST_FUSION_PAIR_TIE_20060812_2058)
|
||
|
|
#define BOOST_FUSION_PAIR_TIE_20060812_2058
|
||
|
|
|
||
|
|
#include <boost/fusion/support/config.hpp>
|
||
|
|
#include <boost/type_traits/is_const.hpp>
|
||
|
|
#include <boost/utility/enable_if.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace fusion {
|
||
|
|
|
||
|
|
template<typename Key, typename T>
|
||
|
|
struct pair;
|
||
|
|
|
||
|
|
namespace result_of
|
||
|
|
{
|
||
|
|
template<typename Key, typename T>
|
||
|
|
struct pair_tie
|
||
|
|
{
|
||
|
|
typedef fusion::pair<Key, T&> type;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename Key, typename T>
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
typename disable_if<is_const<T>, typename result_of::pair_tie<Key, T>::type>::type
|
||
|
|
pair_tie(T& t)
|
||
|
|
{
|
||
|
|
return typename result_of::pair_tie<Key, T>::type(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename Key, typename T>
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
typename result_of::pair_tie<Key, T const>::type
|
||
|
|
pair_tie(T const& t)
|
||
|
|
{
|
||
|
|
return typename result_of::pair_tie<Key, T const>::type(t);
|
||
|
|
}
|
||
|
|
}}
|
||
|
|
|
||
|
|
#endif
|