https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92059
--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Thu Oct 24 14:13:25 2019 New Revision: 277396 URL: https://gcc.gnu.org/viewcvs?rev=277396&root=gcc&view=rev Log: PR libstdc++/92059 fix several bugs in tr2::dynamic_bitset Backport from mainline 2019-10-11 Jonathan Wakely <jwak...@redhat.com> PR libstdc++/92059 * include/tr2/dynamic_bitset (__dynamic_bitset_base): Define all special member functions as defaulted. Add noexcept to most members. (__dynamic_bitset_base(size_t, unsigned long long, const _Alloc&)): Mask off unwanted bits in the __val parameter. Avoid undefined left shifts. (__dynamic_bitset_base::_M_assign): Remove. (__dynamic_bitset_base::_M_do_reset): Use std::fill. (__dynamic_bitset_base::_M_are_all_aux): Avoid integer promotion when block_type has lower rank than int. (dynamic_bitset): Add noexcept to most members. Use injected-class-name in return types and parameter types. (dynamic_bitset::_M_Nb): Add default member initializer. (dynamic_bitset(), dynamic_bitset(const dynamic_bitset&)): Define as defaulted. (dynamic_bitset(dynamic_bitset&&)): Clear source object after move. (dynamic_bitset::operator=(const dynamic_bitset&)): Define as defaulted. (dynamic_bitset::operator=(dynamic_bitset&&)): Add noexcept-specifier. Define without using swap, to propagate allocator correctly. (dynamic_bitset(const char*, const _Alloc&)): Use strlen. (dynamic_bitset::_M_do_sanitize, dynamic_bitset::_M_do_fill): Use casts to avoid unwanted integer promotions. (dynamic_bitset::_M_copy_from_ptr): Rearrange template parameters and add default template arguments and default argument to simplify usage. (dynamic_bitset::_M_copy_from_string): Adjust call to _M_copy_from_ptr. (operator==(const dynamic_bitset&, const dynamic_bitset&)) (operator<(const dynamic_bitset&, const dynamic_bitset&)): Use _M_Nb. * include/tr2/dynamic_bitset.tcc (dynamic_bitset::_M_copy_from_ptr): Adjust template parameters to match declaration. * testsuite/tr2/dynamic_bitset/cmp.cc: New test. * testsuite/tr2/dynamic_bitset/cons.cc: New test. * testsuite/tr2/dynamic_bitset/copy.cc: New test. * testsuite/tr2/dynamic_bitset/move.cc: New test. * testsuite/tr2/dynamic_bitset/pr92059.cc: New test. Added: branches/gcc-8-branch/libstdc++-v3/testsuite/tr2/dynamic_bitset/cmp.cc branches/gcc-8-branch/libstdc++-v3/testsuite/tr2/dynamic_bitset/cons.cc branches/gcc-8-branch/libstdc++-v3/testsuite/tr2/dynamic_bitset/copy.cc branches/gcc-8-branch/libstdc++-v3/testsuite/tr2/dynamic_bitset/move.cc branches/gcc-8-branch/libstdc++-v3/testsuite/tr2/dynamic_bitset/pr92059.cc Modified: branches/gcc-8-branch/libstdc++-v3/ChangeLog branches/gcc-8-branch/libstdc++-v3/include/tr2/dynamic_bitset branches/gcc-8-branch/libstdc++-v3/include/tr2/dynamic_bitset.tcc
