12345678910111213141516171819202122232425262728293031323334 |
- // 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_CONCEPT_DEF_DWA200651_HPP
- # define BOOST_CONCEPT_DETAIL_CONCEPT_DEF_DWA200651_HPP
- # include <boost/preprocessor/seq/for_each_i.hpp>
- # include <boost/preprocessor/seq/enum.hpp>
- # include <boost/preprocessor/comma_if.hpp>
- # include <boost/preprocessor/cat.hpp>
- #endif // BOOST_CONCEPT_DETAIL_CONCEPT_DEF_DWA200651_HPP
- // BOOST_concept(SomeName, (p1)(p2)...(pN))
- //
- // Expands to "template <class p1, class p2, ...class pN> struct SomeName"
- //
- // Also defines an equivalent SomeNameConcept for backward compatibility.
- // Maybe in the next release we can kill off the "Concept" suffix for good.
- # define BOOST_concept(name, params) \
- template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) > \
- struct name; /* forward declaration */ \
- \
- template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) > \
- struct BOOST_PP_CAT(name,Concept) \
- : name< BOOST_PP_SEQ_ENUM(params) > \
- { \
- }; \
- \
- template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) > \
- struct name
-
- // Helper for BOOST_concept, above.
- # define BOOST_CONCEPT_typename(r, ignored, index, t) \
- BOOST_PP_COMMA_IF(index) typename t
|