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Added legibility.

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[SVN r33895]
This commit is contained in:
Dave Abrahams
2006-05-01 19:45:04 +00:00
parent 79017f985a
commit ba2a75c1f9
1 changed files with 17 additions and 11 deletions
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28
include/boost/concept/detail/concept_def.hpp
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@@ -3,9 +3,10 @@
// 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/comma_if.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))
@@ -14,16 +15,21 @@
//
// 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 decl */ \
\
template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) > \
struct BOOST_PP_CAT(name,Concept) \
: name< BOOST_PP_SEQ_ENUM(params) > \
{ \
BOOST_PP_CAT(name,Concept)(); /* ctor needed to satisfy gcc-3.4.4 */ \
}; \
\
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
# define BOOST_concept(name, params) \
template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename, ~, params) > \
struct name; \
template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename, ~, params) > \
struct BOOST_PP_CAT(name,Concept) : name< BOOST_PP_SEQ_ENUM(params) > \
{ BOOST_PP_CAT(name,Concept)(); }; /* ctor needed to satisfy gcc-3.4.4 */ \
template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename, ~, params) > \
struct name