You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
2.0 KiB
68 lines
2.0 KiB
5 years ago
|
|
||
|
|
// (C) Copyright Edward Diener 2011,2012,2013
|
||
|
|
// 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_TEMPLATE_HPP)
|
||
|
|
#define BOOST_TTI_DETAIL_TEMPLATE_HPP
|
||
|
|
|
||
|
|
#include <boost/config.hpp>
|
||
|
|
#include <boost/mpl/bool.hpp>
|
||
|
|
#include <boost/mpl/eval_if.hpp>
|
||
|
|
#include <boost/mpl/has_xxx.hpp>
|
||
|
|
#include <boost/preprocessor/cat.hpp>
|
||
|
|
#include <boost/preprocessor/debug/assert.hpp>
|
||
|
|
#include <boost/preprocessor/facilities/is_empty.hpp>
|
||
|
|
#include <boost/type_traits/is_class.hpp>
|
||
|
|
|
||
|
|
#define BOOST_TTI_DETAIL_IS_HELPER_BOOST_PP_NIL
|
||
|
|
|
||
|
|
#define BOOST_TTI_DETAIL_IS_NIL(param) \
|
||
|
|
BOOST_PP_IS_EMPTY \
|
||
|
|
( \
|
||
|
|
BOOST_PP_CAT(BOOST_TTI_DETAIL_IS_HELPER_,param) \
|
||
|
|
) \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#define BOOST_TTI_DETAIL_TRAIT_ASSERT_NOT_NIL(trait,name,params) \
|
||
|
|
BOOST_PP_ASSERT_MSG(0, "The parameter must be BOOST_PP_NIL") \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#define BOOST_TTI_DETAIL_TRAIT_CHECK_IS_NIL(trait,name,params) \
|
||
|
|
BOOST_PP_IIF \
|
||
|
|
( \
|
||
|
|
BOOST_TTI_DETAIL_IS_NIL(params), \
|
||
|
|
BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE, \
|
||
|
|
BOOST_TTI_DETAIL_TRAIT_ASSERT_NOT_NIL \
|
||
|
|
) \
|
||
|
|
(trait,name,params) \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_THT(trait,name) \
|
||
|
|
BOOST_MPL_HAS_XXX_TEMPLATE_NAMED_DEF(BOOST_PP_CAT(trait,_detail_mpl), name, false) \
|
||
|
|
template<class BOOST_TTI_DETAIL_TP_T> \
|
||
|
|
struct BOOST_PP_CAT(trait,_tht) : \
|
||
|
|
BOOST_PP_CAT(trait,_detail_mpl)<BOOST_TTI_DETAIL_TP_T> \
|
||
|
|
{ \
|
||
|
|
}; \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE(trait,name,params) \
|
||
|
|
BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_THT(trait,name) \
|
||
|
|
template<class BOOST_TTI_DETAIL_TP_T> \
|
||
|
|
struct trait \
|
||
|
|
{ \
|
||
|
|
typedef typename \
|
||
|
|
boost::mpl::eval_if \
|
||
|
|
< \
|
||
|
|
boost::is_class<BOOST_TTI_DETAIL_TP_T>, \
|
||
|
|
BOOST_PP_CAT(trait,_tht)<BOOST_TTI_DETAIL_TP_T>, \
|
||
|
|
boost::mpl::false_ \
|
||
|
|
>::type type; \
|
||
|
|
BOOST_STATIC_CONSTANT(bool,value=type::value); \
|
||
|
|
}; \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#endif // !BOOST_TTI_DETAIL_TEMPLATE_HPP
|