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| author | Jonathan Wakely <jwakely@redhat.com> | 2016-10-10 17:15:52 +0100 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2016-10-10 17:15:52 +0100 |
| commit | 40962ac03a869cf7e07e0672c0a649371896277b (patch) | |
| tree | 0ae0104d0d1b18413144651fb5833993248fb3f5 /libstdc++-v3 | |
| parent | 2d6744f47576c61fa914057cc7d60e40b74eda95 (diff) | |
| download | gcc-40962ac03a869cf7e07e0672c0a649371896277b.zip gcc-40962ac03a869cf7e07e0672c0a649371896277b.tar.gz gcc-40962ac03a869cf7e07e0672c0a649371896277b.tar.bz2 | |
Minor simplification to std::_Bind_result helpers
* include/std/functional (_Bind_result::__enable_if_void): Use alias
template instead of class template.
(_Bind_result::__disable_if_void): Likewise.
(_Bind_result::__call): Adjust uses of __enable_if_void and
__disable_if_void.
From-SVN: r240940
Diffstat (limited to 'libstdc++-v3')
| -rw-r--r-- | libstdc++-v3/ChangeLog | 6 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/functional | 48 |
2 files changed, 28 insertions, 26 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 34b7d05..afa10f4 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,5 +1,11 @@ 2016-10-10 Jonathan Wakely <jwakely@redhat.com> + * include/std/functional (_Bind_result::__enable_if_void): Use alias + template instead of class template. + (_Bind_result::__disable_if_void): Likewise. + (_Bind_result::__call): Adjust uses of __enable_if_void and + __disable_if_void. + * doc/xml/manual/intro.xml: Document DR 2296 status. * doc/xml/manual/status_cxx2017.xml: Update status. * include/bits/move.h (__addressof): Add _GLIBCXX_CONSTEXPR and diff --git a/libstdc++-v3/include/std/functional b/libstdc++-v3/include/std/functional index 1c7523e..2587392 100644 --- a/libstdc++-v3/include/std/functional +++ b/libstdc++-v3/include/std/functional @@ -1000,15 +1000,17 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // sfinae types template<typename _Res> - struct __enable_if_void : enable_if<is_void<_Res>::value, int> { }; + using __enable_if_void + = typename enable_if<is_void<_Res>{}>::type; + template<typename _Res> - struct __disable_if_void : enable_if<!is_void<_Res>::value, int> { }; + using __disable_if_void + = typename enable_if<!is_void<_Res>{}, _Result>::type; // Call unqualified template<typename _Res, typename... _Args, std::size_t... _Indexes> - _Result - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __disable_if_void<_Res>::type = 0) + __disable_if_void<_Res> + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) { return _M_f(_Mu<_Bound_args>() (std::get<_Indexes>(_M_bound_args), __args)...); @@ -1016,9 +1018,8 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call unqualified, return void template<typename _Res, typename... _Args, std::size_t... _Indexes> - void - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __enable_if_void<_Res>::type = 0) + __enable_if_void<_Res> + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) { _M_f(_Mu<_Bound_args>() (std::get<_Indexes>(_M_bound_args), __args)...); @@ -1026,9 +1027,8 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call as const template<typename _Res, typename... _Args, std::size_t... _Indexes> - _Result - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __disable_if_void<_Res>::type = 0) const + __disable_if_void<_Res> + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const { return _M_f(_Mu<_Bound_args>() (std::get<_Indexes>(_M_bound_args), __args)...); @@ -1036,9 +1036,8 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call as const, return void template<typename _Res, typename... _Args, std::size_t... _Indexes> - void - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __enable_if_void<_Res>::type = 0) const + __enable_if_void<_Res> + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const { _M_f(_Mu<_Bound_args>() (std::get<_Indexes>(_M_bound_args), __args)...); @@ -1046,9 +1045,8 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call as volatile template<typename _Res, typename... _Args, std::size_t... _Indexes> - _Result - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __disable_if_void<_Res>::type = 0) volatile + __disable_if_void<_Res> + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) volatile { return _M_f(_Mu<_Bound_args>() (__volget<_Indexes>(_M_bound_args), __args)...); @@ -1056,9 +1054,8 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call as volatile, return void template<typename _Res, typename... _Args, std::size_t... _Indexes> - void - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __enable_if_void<_Res>::type = 0) volatile + __enable_if_void<_Res> + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) volatile { _M_f(_Mu<_Bound_args>() (__volget<_Indexes>(_M_bound_args), __args)...); @@ -1066,9 +1063,9 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call as const volatile template<typename _Res, typename... _Args, std::size_t... _Indexes> - _Result - __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>, - typename __disable_if_void<_Res>::type = 0) const volatile + __disable_if_void<_Res> + __call(tuple<_Args...>&& __args, + _Index_tuple<_Indexes...>) const volatile { return _M_f(_Mu<_Bound_args>() (__volget<_Indexes>(_M_bound_args), __args)...); @@ -1076,10 +1073,9 @@ _GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) // Call as const volatile, return void template<typename _Res, typename... _Args, std::size_t... _Indexes> - void + __enable_if_void<_Res> __call(tuple<_Args...>&& __args, - _Index_tuple<_Indexes...>, - typename __enable_if_void<_Res>::type = 0) const volatile + _Index_tuple<_Indexes...>) const volatile { _M_f(_Mu<_Bound_args>() (__volget<_Indexes>(_M_bound_args), __args)...); |