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Fix 11269 (https://svn.boost.org/trac/boost/ticket/11269) and add test case for it.

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This commit is contained in:
Damien Buhl (alias daminetreg)
2015-05-06 08:21:02 +02:00
parent 3b86f61f15
commit 8b1da45bfe
3 changed files with 21 additions and 11 deletions
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19
include/boost/fusion/adapted/struct/adapt_struct.hpp
View File

@ -17,6 +17,8 @@
#include <boost/preprocessor/control/if.hpp>
#include <boost/preprocessor/comparison/less.hpp>
#include <boost/preprocessor/comparison/equal.hpp>
#include <boost/preprocessor/seq/seq.hpp>
#include <boost/preprocessor/variadic/to_seq.hpp>
#include <boost/type_traits/add_reference.hpp>
#include <boost/type_traits/is_const.hpp>
#include <boost/type_traits/add_const.hpp>
@ -61,25 +63,28 @@
(1)NAME_SEQ, \
struct_tag, \
0, \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER(__VA_ARGS__), \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER( \
BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__)), \
BOOST_FUSION_ADAPT_STRUCT_C)
# define BOOST_FUSION_ADAPT_STRUCT(NAME, ...) \
# define BOOST_FUSION_ADAPT_STRUCT(...) \
BOOST_FUSION_ADAPT_STRUCT_BASE( \
(0), \
(0)(NAME), \
(0)(BOOST_PP_SEQ_HEAD(BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__))), \
struct_tag, \
0, \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER(__VA_ARGS__), \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER( \
BOOST_PP_SEQ_TAIL(BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__))), \
BOOST_FUSION_ADAPT_STRUCT_C)
# define BOOST_FUSION_ADAPT_STRUCT_AS_VIEW(NAME, ...) \
# define BOOST_FUSION_ADAPT_STRUCT_AS_VIEW(...) \
BOOST_FUSION_ADAPT_STRUCT_BASE( \
(0), \
(0)(NAME), \
(0)(BOOST_PP_SEQ_HEAD(BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__))), \
struct_tag, \
1, \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER(__VA_ARGS__), \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER( \
BOOST_PP_SEQ_TAIL(BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__))), \
BOOST_FUSION_ADAPT_STRUCT_C)
#else // BOOST_PP_VARIADICS

10
include/boost/fusion/adapted/struct/detail/adapt_base_attr_filler.hpp
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@ -49,14 +49,16 @@
# define BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER_OP(r, unused, elem) \
BOOST_PP_IF(BOOST_FUSION_PP_IS_SEQ(elem), \
BOOST_PP_CAT( BOOST_FUSION_ADAPT_STRUCT_FILLER_0 elem ,_END), \
BOOST_FUSION_ADAPT_STRUCT_WRAP_ATTR(BOOST_FUSION_ADAPT_AUTO, \
elem))
BOOST_PP_IF(BOOST_PP_IS_EMPTY(elem), \
BOOST_PP_EMPTY(), \
BOOST_FUSION_ADAPT_STRUCT_WRAP_ATTR(BOOST_FUSION_ADAPT_AUTO,elem))\
)
# define BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER(...) \
# define BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER(VA_ARGS_SEQ) \
BOOST_PP_SEQ_PUSH_FRONT( \
BOOST_PP_SEQ_FOR_EACH( \
BOOST_FUSION_ADAPT_STRUCT_ATTRIBUTES_FILLER_OP, \
unused, BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__)), \
unused, VA_ARGS_SEQ), \
(0,0))
#endif // BOOST_PP_VARIADICS

3
test/sequence/adapt_struct.cpp
View File

@ -149,6 +149,9 @@ namespace ns
#endif
struct empty_struct {};
BOOST_FUSION_ADAPT_STRUCT(empty_struct,);
int
main()
{