https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87061
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Wed Aug 22 22:54:33 2018 New Revision: 263791 URL: https://gcc.gnu.org/viewcvs?rev=263791&root=gcc&view=rev Log: PR libstdc++/87061 remove pmr type aliases for COW strings The pmr aliases for basic_string and match_results are incompatible with the gcc4-compatible ABI because the Copy-On-Write basic_string class doesn't support C++11 allocators. PR libstdc++/87061 * include/experimental/regex [!_GLIBCXX_USE_CXX11_ABI] (experimental::pmr::match_results, experimental::pmr::cmatch) (experimental::pmr::smatch, experimental::pmr::wcmatch) (experimental::pmr::wsmatch): Do not declare for gcc4-compatible ABI, because COW strings don't support C++11 allocator model. * include/experimental/string [!_GLIBCXX_USE_CXX11_ABI] (experimental::pmr::basic_string, experimental::pmr::string) (experimental::pmr::u16string, experimental::pmr::u32string) (experimental::pmr::wstring): Likewise. * include/std/regex [!_GLIBCXX_USE_CXX11_ABI] (pmr::match_results) (pmr::cmatch, pmr::smatch, pmr::wcmatch, pmr::wsmatch): Likewise. * include/std/string [!_GLIBCXX_USE_CXX11_ABI] (pmr::basic_string) (pmr::string, pmr::u16string, pmr::u32string, pmr::wstring): Likewise. * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Require cxx11-abi. * testsuite/28_regex/match_results/pmr_typedefs.cc: Likewise. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/experimental/regex trunk/libstdc++-v3/include/experimental/string trunk/libstdc++-v3/include/std/regex trunk/libstdc++-v3/include/std/string trunk/libstdc++-v3/testsuite/21_strings/basic_string/types/pmr_typedefs.cc trunk/libstdc++-v3/testsuite/28_regex/match_results/pmr_typedefs.cc
