| commit | c2b91adce4aaeed1ef790be724bed37710741c00 | |
| author | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 7 Jun 2017 12:35:08 +0000 (7 12:35 +0000) | ||
| committer | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 7 Jun 2017 12:35:08 +0000 (7 12:35 +0000) | ||
| tree | 0f22f2af42472dd70d75cabfe787c5fde2239805 | treesnapshot (tar.gz zip) |
| parent | 907b83ae15c469a3309f8df648afbc8ceb353471 | commitdiff |
Add C++17 deduction guide for std::basic_string (P0433R2, partial)
* include/bits/alloc_traits.h (__is_allocator, _RequireAllocator):
New trait and alias for detecting Allocator-like types.
* include/bits/basic_string.h (basic_string): Add deduction guide
from P0433.
* include/ext/alloc_traits.h (__gnu_cxx::__alloc_traits): Add template
parameter with default template argument that causes substitution
failures for types that cannot be allocators.
* testsuite/21_strings/basic_string/cons/char/deduction.cc: New.
* testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@248967 138bc75d-0d04-0410-961f-82ee72b054a4
* include/bits/alloc_traits.h (__is_allocator, _RequireAllocator):
New trait and alias for detecting Allocator-like types.
* include/bits/basic_string.h (basic_string): Add deduction guide
from P0433.
* include/ext/alloc_traits.h (__gnu_cxx::__alloc_traits): Add template
parameter with default template argument that causes substitution
failures for types that cannot be allocators.
* testsuite/21_strings/basic_string/cons/char/deduction.cc: New.
* testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@248967 138bc75d-0d04-0410-961f-82ee72b054a4