| |
| // (C) Copyright Edward Diener 2012,2013 |
| // Use, modification and distribution are subject to 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_TTI_DETAIL_PLACEHOLDER_HPP) |
| #define BOOST_TTI_DETAIL_PLACEHOLDER_HPP |
| |
| #include <boost/mpl/lambda.hpp> |
| #include <boost/mpl/not.hpp> |
| #include <boost/type_traits/is_same.hpp> |
| |
| namespace boost |
| { |
| namespace tti |
| { |
| namespace detail |
| { |
| template <class BOOST_TTI_DETAIL_TP_T> |
| struct is_placeholder_expression : |
| boost::mpl::not_ |
| < |
| boost::is_same |
| < |
| typename boost::mpl::lambda<BOOST_TTI_DETAIL_TP_T>::type, |
| BOOST_TTI_DETAIL_TP_T |
| > |
| > |
| { |
| }; |
| } |
| } |
| } |
| |
| #endif // BOOST_TTI_DETAIL_PLACEHOLDER_HPP |
