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fixing the issue for empty_sequence's as well

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This commit is contained in:
Bruno Dutra
2015-03-21 22:04:52 -03:00
parent c8fe35643d
commit eaa3f26c9c
2 changed files with 5 additions and 1 deletions
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3
include/boost/mpl/empty_sequence.hpp
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@@ -23,7 +23,8 @@ namespace boost { namespace mpl {
struct empty_sequence struct empty_sequence
{ {
struct tag; struct tag;
typedef empty_sequence type;
struct begin { typedef random_access_iterator_tag category; }; struct begin { typedef random_access_iterator_tag category; };
typedef begin end; typedef begin end;
}; };

3
test/empty_sequence.cpp
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@@ -17,6 +17,7 @@
#include <boost/mpl/distance.hpp> #include <boost/mpl/distance.hpp>
#include <boost/mpl/advance.hpp> #include <boost/mpl/advance.hpp>
#include <boost/mpl/begin_end.hpp> #include <boost/mpl/begin_end.hpp>
#include <boost/mpl/equal.hpp>
#include <boost/mpl/aux_/test.hpp> #include <boost/mpl/aux_/test.hpp>
#include <boost/type_traits/is_same.hpp> #include <boost/type_traits/is_same.hpp>
@@ -33,4 +34,6 @@ MPL_TEST_CASE()
typedef advance_c<begin,0>::type advanced; typedef advance_c<begin,0>::type advanced;
MPL_ASSERT(( is_same<advanced,end> )); MPL_ASSERT(( is_same<advanced,end> ));
MPL_ASSERT(( equal< empty_sequence, empty_sequence::type > ));
} }