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authorpaolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>2011-05-23 00:05:24 +0000
committerpaolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>2011-05-23 00:05:24 +0000
commitb6a7b75a18ccc9016f920c3c29b0ce71d28e4f24 (patch)
tree1d62082ba3adf689c24eec5ec21b2555eb5f0c96 /libstdc++-v3/include/std/functional
parentdd71e0582e188fc84908e8b34a8152dad26e1352 (diff)
downloadppe42-gcc-b6a7b75a18ccc9016f920c3c29b0ce71d28e4f24.tar.gz
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2011-05-22 Jonathan Wakely <jwakely.gcc@gmail.com>
* testsuite/20_util/bind/cv_quals_2.cc: New. 2011-05-22 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/49058 * include/std/functional (_Bind<_Functor(_Bound_args...)>:: operator()(_Args&&...)): Don't cv qualify _Functor directly in the default template argument, SFINAE doesn't apply when the functor has no arguments. * testsuite/20_util/bind/49058_1.cc: New. * testsuite/20_util/bind/49058_2.cc: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174048 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/include/std/functional')
-rw-r--r--libstdc++-v3/include/std/functional9
1 files changed, 6 insertions, 3 deletions
diff --git a/libstdc++-v3/include/std/functional b/libstdc++-v3/include/std/functional
index 40cf87030b5..0126510ce24 100644
--- a/libstdc++-v3/include/std/functional
+++ b/libstdc++-v3/include/std/functional
@@ -1210,7 +1210,8 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
// Call as const
template<typename... _Args, typename _Result
- = decltype( std::declval<const _Functor>()(
+ = decltype( std::declval<typename enable_if<(sizeof...(_Args) >= 0),
+ typename add_const<_Functor>::type>::type>()(
_Mu<_Bound_args>()( std::declval<const _Bound_args&>(),
std::declval<tuple<_Args...>&>() )... ) )>
_Result
@@ -1223,7 +1224,8 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
// Call as volatile
template<typename... _Args, typename _Result
- = decltype( std::declval<volatile _Functor>()(
+ = decltype( std::declval<typename enable_if<(sizeof...(_Args) >= 0),
+ typename add_volatile<_Functor>::type>::type>()(
_Mu<_Bound_args>()( std::declval<volatile _Bound_args&>(),
std::declval<tuple<_Args...>&>() )... ) )>
_Result
@@ -1236,7 +1238,8 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
// Call as const volatile
template<typename... _Args, typename _Result
- = decltype( std::declval<const volatile _Functor>()(
+ = decltype( std::declval<typename enable_if<(sizeof...(_Args) >= 0),
+ typename add_cv<_Functor>::type>::type>()(
_Mu<_Bound_args>()( std::declval<const volatile _Bound_args&>(),
std::declval<tuple<_Args...>&>() )... ) )>
_Result
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