| /*============================================================================= |
| Copyright (c) 2012 Nathan Ridge |
| |
| 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_SUPPORT_AS_CONST_HPP |
| #define BOOST_FUSION_SUPPORT_AS_CONST_HPP |
| |
| #include <boost/config.hpp> |
| #include <boost/fusion/support/config.hpp> |
| |
| namespace boost { namespace fusion { namespace extension |
| { |
| // A customization point that allows certain wrappers around |
| // Fusion sequence elements (e.g. adt_attribute_proxy) to be |
| // unwrapped in contexts where the element only needs to be |
| // read. The library wraps accesses to Fusion elements in |
| // such contexts with calls to this function. Users can |
| // specialize this function for their own wrappers. |
| template <typename T> |
| BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| inline const T& as_const(const T& obj) BOOST_NOEXCEPT |
| { |
| return obj; |
| } |
| |
| }}} |
| |
| #endif |