Files
boost_fusion/include/boost/fusion/adapted/adt/detail/extension.hpp
Kohei Takahashi 2114bfca6c More constexpr and noexcept support.
Note 1: Forwarding functions are specified as a C++14 constexpr since
std::forward is not a constexpr within C++11.

Note 2: Though I'm not sure why it doesn't compile, some declarations
are specified as a C++14 constexpr or non-constexpr.

Note 3: Boost.Tuple adaptation and TR1-based tuple implementations are
not constexpr.
2015-03-03 02:21:02 +09:00

42 lines
1.4 KiB
C++

/*=============================================================================
Copyright (c) 2001-2009 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
Copyright (c) 2010 Christopher Schmidt
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)
==============================================================================*/
#ifndef BOOST_FUSION_ADAPTED_ADT_DETAIL_EXTENSION_HPP
#define BOOST_FUSION_ADAPTED_ADT_DETAIL_EXTENSION_HPP
#include <boost/fusion/support/config.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/fusion/support/as_const.hpp>
#include <boost/fusion/adapted/struct/detail/extension.hpp>
namespace boost { namespace fusion
{
namespace detail
{
template <typename T, typename Dummy>
struct get_identity
: remove_const<typename remove_reference<T>::type>
{};
}
namespace extension
{
// Overload as_const() to unwrap adt_attribute_proxy.
template <typename T, int N, bool Const>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
typename adt_attribute_proxy<T, N, Const>::type as_const(const adt_attribute_proxy<T, N, Const>& proxy)
{
return proxy.get();
}
}
}}
#endif