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Contents
// Copyright David Abrahams 2006. 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_CONCEPT_DETAIL_GENERAL_DWA2006429_HPP
# define BOOST_CONCEPT_DETAIL_GENERAL_DWA2006429_HPP
# include <boost/preprocessor/cat.hpp>
# ifdef BOOST_OLD_CONCEPT_SUPPORT
# include <boost/concept/detail/has_constraints.hpp>
# include <boost/mpl/if.hpp>
# endif
// This implementation works on Comeau and GCC, all the way back to
// 2.95
namespace boost { namespace concept {
template <class ModelFn>
struct requirement_;
namespace detail
{
template <void(*)()> struct instantiate {};
}
template <class Model>
struct requirement
{
static void failed() { ((Model*)0)->~Model(); }
};
# ifdef BOOST_OLD_CONCEPT_SUPPORT
template <class Model>
struct constraint
{
static void failed() { ((Model*)0)->constraints(); }
};
template <class Model>
struct requirement_<void(*)(Model)>
: mpl::if_<
concept::not_satisfied<Model>
, constraint<Model>
, requirement<Model>
>::type
{};
# else
// For GCC-2.x, these can't have exactly the same name
template <class Model>
struct requirement_<void(*)(Model)>
: requirement<Model>
{};
# endif
# define BOOST_CONCEPT_ASSERT_FN( ModelFnPtr ) \
typedef ::boost::concept::detail::instantiate< \
&::boost::concept::requirement_<ModelFnPtr>::failed> \
BOOST_PP_CAT(boost_concept_check,__LINE__)
}}
#endif // BOOST_CONCEPT_DETAIL_GENERAL_DWA2006429_HPP
Version data entries
35 entries across 35 versions & 5 rubygems