diff options
Diffstat (limited to 'libstdc++-v3/include')
25 files changed, 818 insertions, 187 deletions
diff --git a/libstdc++-v3/include/bits/max_size_type.h b/libstdc++-v3/include/bits/max_size_type.h index 73a6d14..30c5b12 100644 --- a/libstdc++-v3/include/bits/max_size_type.h +++ b/libstdc++-v3/include/bits/max_size_type.h @@ -38,6 +38,7 @@ #include <ext/numeric_traits.h> #include <bit> // __bit_width #include <numbers> +#include <limits> // __glibcxx_integral_traps // This header implements unsigned and signed integer-class types (as per // [iterator.concept.winc]) that are one bit wider than the widest supported @@ -775,10 +776,27 @@ namespace ranges static constexpr bool is_signed = false; static constexpr bool is_integer = true; static constexpr bool is_exact = true; + static constexpr bool is_bounded = true; + static constexpr bool is_modulo = true; + static constexpr bool traps = __glibcxx_integral_traps; + static constexpr int radix = 2; static constexpr int digits = __gnu_cxx::__int_traits<_Sp::__rep>::__digits + 1; static constexpr int digits10 = static_cast<int>(digits * numbers::ln2 / numbers::ln10); + static constexpr int max_digits10 = 0; + static constexpr int min_exponent = 0; + static constexpr int min_exponent10 = 0; + static constexpr int max_exponent = 0; + static constexpr int max_exponent10 = 0; + static constexpr bool is_iec559 = false; + static constexpr bool has_infinity = false; + static constexpr bool has_quiet_NaN = false; + static constexpr bool has_signaling_NaN = false; + static constexpr bool has_denorm_loss = false; + static constexpr bool tinyness_before = false; + static constexpr float_denorm_style has_denorm = denorm_absent; + static constexpr float_round_style round_style = round_toward_zero; static constexpr _Sp min() noexcept @@ -791,6 +809,30 @@ namespace ranges static constexpr _Sp lowest() noexcept { return min(); } + + static constexpr _Sp + denorm_min() noexcept + { return 0; } + + static constexpr _Sp + epsilon() noexcept + { return 0; } + + static constexpr _Sp + round_error() noexcept + { return 0; } + + static constexpr _Sp + infinity() noexcept + { return 0; } + + static constexpr _Sp + quiet_NaN() noexcept + { return 0; } + + static constexpr _Sp + signaling_NaN() noexcept + { return 0; } }; template<> @@ -802,9 +844,26 @@ namespace ranges static constexpr bool is_signed = true; static constexpr bool is_integer = true; static constexpr bool is_exact = true; + static constexpr bool is_bounded = true; + static constexpr bool is_modulo = false; + static constexpr bool traps = __glibcxx_integral_traps; + static constexpr int radix = 2; static constexpr int digits = numeric_limits<_Sp>::digits - 1; static constexpr int digits10 = static_cast<int>(digits * numbers::ln2 / numbers::ln10); + static constexpr int max_digits10 = 0; + static constexpr int min_exponent = 0; + static constexpr int min_exponent10 = 0; + static constexpr int max_exponent = 0; + static constexpr int max_exponent10 = 0; + static constexpr bool is_iec559 = false; + static constexpr bool has_infinity = false; + static constexpr bool has_quiet_NaN = false; + static constexpr bool has_signaling_NaN = false; + static constexpr bool has_denorm_loss = false; + static constexpr bool tinyness_before = false; + static constexpr float_denorm_style has_denorm = denorm_absent; + static constexpr float_round_style round_style = round_toward_zero; static constexpr _Dp min() noexcept @@ -817,6 +876,30 @@ namespace ranges static constexpr _Dp lowest() noexcept { return min(); } + + static constexpr _Dp + denorm_min() noexcept + { return 0; } + + static constexpr _Dp + epsilon() noexcept + { return 0; } + + static constexpr _Dp + round_error() noexcept + { return 0; } + + static constexpr _Dp + infinity() noexcept + { return 0; } + + static constexpr _Dp + quiet_NaN() noexcept + { return 0; } + + static constexpr _Dp + signaling_NaN() noexcept + { return 0; } }; template<> diff --git a/libstdc++-v3/include/bits/shared_ptr.h b/libstdc++-v3/include/bits/shared_ptr.h index a196a0f..f2b4601 100644 --- a/libstdc++-v3/include/bits/shared_ptr.h +++ b/libstdc++-v3/include/bits/shared_ptr.h @@ -909,6 +909,64 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION : public _Sp_owner_less<weak_ptr<_Tp>, shared_ptr<_Tp>> { }; +#ifdef __glibcxx_smart_ptr_owner_equality // >= C++26 + + /** + * @brief Provides ownership-based hashing. + * @headerfile memory + * @since C++26 + */ + struct owner_hash + { + template<typename _Tp> + size_t + operator()(const shared_ptr<_Tp>& __s) const noexcept + { return __s.owner_hash(); } + + template<typename _Tp> + size_t + operator()(const weak_ptr<_Tp>& __s) const noexcept + { return __s.owner_hash(); } + + using is_transparent = void; + }; + + /** + * @brief Provides ownership-based mixed equality comparisons of + * shared and weak pointers. + * @headerfile memory + * @since C++26 + */ + struct owner_equal + { + template<typename _Tp1, typename _Tp2> + bool + operator()(const shared_ptr<_Tp1>& __lhs, + const shared_ptr<_Tp2>& __rhs) const noexcept + { return __lhs.owner_equal(__rhs); } + + template<typename _Tp1, typename _Tp2> + bool + operator()(const shared_ptr<_Tp1>& __lhs, + const weak_ptr<_Tp2>& __rhs) const noexcept + { return __lhs.owner_equal(__rhs); } + + template<typename _Tp1, typename _Tp2> + bool + operator()(const weak_ptr<_Tp1>& __lhs, + const shared_ptr<_Tp2>& __rhs) const noexcept + { return __lhs.owner_equal(__rhs); } + + template<typename _Tp1, typename _Tp2> + bool + operator()(const weak_ptr<_Tp1>& __lhs, + const weak_ptr<_Tp2>& __rhs) const noexcept + { return __lhs.owner_equal(__rhs); } + + using is_transparent = void; + }; +#endif + /** * @brief Base class allowing use of the member function `shared_from_this`. * @headerfile memory diff --git a/libstdc++-v3/include/bits/shared_ptr_base.h b/libstdc++-v3/include/bits/shared_ptr_base.h index b4be1b4..fb868e7 100644 --- a/libstdc++-v3/include/bits/shared_ptr_base.h +++ b/libstdc++-v3/include/bits/shared_ptr_base.h @@ -1122,6 +1122,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _M_less(const __weak_count<_Lp>& __rhs) const noexcept { return std::less<_Sp_counted_base<_Lp>*>()(this->_M_pi, __rhs._M_pi); } +#ifdef __glibcxx_smart_ptr_owner_equality // >= C++26 + size_t + _M_owner_hash() const noexcept + { return std::hash<_Sp_counted_base<_Lp>*>()(this->_M_pi); } +#endif + // Friend function injected into enclosing namespace and found by ADL friend inline bool operator==(const __shared_count& __a, const __shared_count& __b) noexcept @@ -1225,6 +1231,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _M_less(const __shared_count<_Lp>& __rhs) const noexcept { return std::less<_Sp_counted_base<_Lp>*>()(this->_M_pi, __rhs._M_pi); } +#ifdef __glibcxx_smart_ptr_owner_equality // >= C++26 + size_t + _M_owner_hash() const noexcept + { return std::hash<_Sp_counted_base<_Lp>*>()(this->_M_pi); } +#endif + // Friend function injected into enclosing namespace and found by ADL friend inline bool operator==(const __weak_count& __a, const __weak_count& __b) noexcept @@ -1715,6 +1727,20 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return _M_refcount._M_less(__rhs._M_refcount); } /// @} +#ifdef __glibcxx_smart_ptr_owner_equality // >= C++26 + size_t owner_hash() const noexcept { return _M_refcount._M_owner_hash(); } + + template<typename _Tp1> + bool + owner_equal(__shared_ptr<_Tp1, _Lp> const& __rhs) const noexcept + { return _M_refcount == __rhs._M_refcount; } + + template<typename _Tp1> + bool + owner_equal(__weak_ptr<_Tp1, _Lp> const& __rhs) const noexcept + { return _M_refcount == __rhs._M_refcount; } +#endif + protected: // This constructor is non-standard, it is used by allocate_shared. template<typename _Alloc, typename... _Args> @@ -2098,6 +2124,20 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION owner_before(const __weak_ptr<_Tp1, _Lp>& __rhs) const noexcept { return _M_refcount._M_less(__rhs._M_refcount); } +#ifdef __glibcxx_smart_ptr_owner_equality // >= C++26 + size_t owner_hash() const noexcept { return _M_refcount._M_owner_hash(); } + + template<typename _Tp1> + bool + owner_equal(const __shared_ptr<_Tp1, _Lp> & __rhs) const noexcept + { return _M_refcount == __rhs._M_refcount; } + + template<typename _Tp1> + bool + owner_equal(const __weak_ptr<_Tp1, _Lp> & __rhs) const noexcept + { return _M_refcount == __rhs._M_refcount; } +#endif + void reset() noexcept { __weak_ptr().swap(*this); } diff --git a/libstdc++-v3/include/bits/stl_iterator.h b/libstdc++-v3/include/bits/stl_iterator.h index a7188f4..75e794f 100644 --- a/libstdc++-v3/include/bits/stl_iterator.h +++ b/libstdc++-v3/include/bits/stl_iterator.h @@ -1211,7 +1211,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #else // Forward iterator requirements template<typename _Iter> - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1220,7 +1220,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _GLIBCXX_NOEXCEPT { return __lhs.base() == __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1229,7 +1229,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return __lhs.base() == __rhs.base(); } template<typename _Iter> - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1238,7 +1238,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _GLIBCXX_NOEXCEPT { return __lhs.base() != __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1248,15 +1248,16 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Random access iterator requirements template<typename _Iter> + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD _GLIBCXX_CONSTEXPR + _GLIBCXX_CONSTEXPR inline bool operator<(const __normal_iterator& __lhs, const __normal_iterator<_Iter, _Container>& __rhs) _GLIBCXX_NOEXCEPT { return __lhs.base() < __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX20_CONSTEXPR bool @@ -1265,15 +1266,16 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return __lhs.base() < __rhs.base(); } template<typename _Iter> + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD _GLIBCXX_CONSTEXPR + _GLIBCXX_CONSTEXPR bool operator>(const __normal_iterator& __lhs, const __normal_iterator<_Iter, _Container>& __rhs) _GLIBCXX_NOEXCEPT { return __lhs.base() > __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1282,7 +1284,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return __lhs.base() > __rhs.base(); } template<typename _Iter> - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1291,7 +1293,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _GLIBCXX_NOEXCEPT { return __lhs.base() <= __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1300,7 +1302,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return __lhs.base() <= __rhs.base(); } template<typename _Iter> - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1309,7 +1311,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _GLIBCXX_NOEXCEPT { return __lhs.base() >= __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR bool @@ -1341,7 +1343,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #endif { return __lhs.base() - __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR difference_type @@ -1349,7 +1351,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _GLIBCXX_NOEXCEPT { return __lhs.base() - __rhs.base(); } - __attribute__((__always_inline__)) _GLIBCXX_NODISCARD + _GLIBCXX_NODISCARD __attribute__((__always_inline__)) friend _GLIBCXX_CONSTEXPR __normal_iterator diff --git a/libstdc++-v3/include/bits/version.def b/libstdc++-v3/include/bits/version.def index 64f8190..31385b5 100644 --- a/libstdc++-v3/include/bits/version.def +++ b/libstdc++-v3/include/bits/version.def @@ -1007,9 +1007,8 @@ ftms = { ftms = { name = mdspan; - no_stdname = true; // FIXME: remove values = { - v = 1; // FIXME: 202207 + v = 202207; cxxmin = 23; }; }; @@ -2008,6 +2007,15 @@ ftms = { }; ftms = { + name = smart_ptr_owner_equality; + values = { + v = 202306; + cxxmin = 26; + hosted = yes; + }; +}; + +ftms = { name = sstream_from_string_view; values = { v = 202306; diff --git a/libstdc++-v3/include/bits/version.h b/libstdc++-v3/include/bits/version.h index 744246a..aa53f29 100644 --- a/libstdc++-v3/include/bits/version.h +++ b/libstdc++-v3/include/bits/version.h @@ -1126,8 +1126,9 @@ #if !defined(__cpp_lib_mdspan) # if (__cplusplus >= 202100L) -# define __glibcxx_mdspan 1L +# define __glibcxx_mdspan 202207L # if defined(__glibcxx_want_all) || defined(__glibcxx_want_mdspan) +# define __cpp_lib_mdspan 202207L # endif # endif #endif /* !defined(__cpp_lib_mdspan) && defined(__glibcxx_want_mdspan) */ @@ -2248,6 +2249,16 @@ #endif /* !defined(__cpp_lib_polymorphic) && defined(__glibcxx_want_polymorphic) */ #undef __glibcxx_want_polymorphic +#if !defined(__cpp_lib_smart_ptr_owner_equality) +# if (__cplusplus > 202302L) && _GLIBCXX_HOSTED +# define __glibcxx_smart_ptr_owner_equality 202306L +# if defined(__glibcxx_want_all) || defined(__glibcxx_want_smart_ptr_owner_equality) +# define __cpp_lib_smart_ptr_owner_equality 202306L +# endif +# endif +#endif /* !defined(__cpp_lib_smart_ptr_owner_equality) && defined(__glibcxx_want_smart_ptr_owner_equality) */ +#undef __glibcxx_want_smart_ptr_owner_equality + #if !defined(__cpp_lib_sstream_from_string_view) # if (__cplusplus > 202302L) && _GLIBCXX_HOSTED # define __glibcxx_sstream_from_string_view 202306L diff --git a/libstdc++-v3/include/debug/deque b/libstdc++-v3/include/debug/deque index 59d60b2..ed69eb8 100644 --- a/libstdc++-v3/include/debug/deque +++ b/libstdc++-v3/include/debug/deque @@ -650,7 +650,8 @@ namespace __debug else if (__first.base() == _Base::begin() || __last.base() == _Base::end()) { - this->_M_detach_singular(); + const deque* __this = this; + __this->_M_detach_singular(); for (_Base_const_iterator __position = __first.base(); __position != __last.base(); ++__position) { @@ -663,7 +664,7 @@ namespace __debug } __catch(...) { - this->_M_revalidate_singular(); + __this->_M_revalidate_singular(); __throw_exception_again; } } diff --git a/libstdc++-v3/include/debug/formatter.h b/libstdc++-v3/include/debug/formatter.h index d80e8a7..8aa84ad 100644 --- a/libstdc++-v3/include/debug/formatter.h +++ b/libstdc++-v3/include/debug/formatter.h @@ -96,7 +96,7 @@ namespace __gnu_debug template<typename _Iterator, typename _Sequence, typename _Category> class _Safe_iterator; - template<typename _Iterator, typename _Sequence> + template<typename _Iterator, typename _UContainer> class _Safe_local_iterator; template<typename _Sequence> @@ -316,8 +316,8 @@ namespace __gnu_debug } } - template<typename _Iterator, typename _Sequence> - _Parameter(_Safe_local_iterator<_Iterator, _Sequence> const& __it, + template<typename _Iterator, typename _UContainer> + _Parameter(_Safe_local_iterator<_Iterator, _UContainer> const& __it, const char* __name, _Is_iterator) : _M_kind(__iterator), _M_variant() { @@ -326,8 +326,8 @@ namespace __gnu_debug _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(_Iterator); _M_variant._M_iterator._M_constness = __it._S_constant() ? __const_iterator : __mutable_iterator; - _M_variant._M_iterator._M_sequence = __it._M_get_sequence(); - _M_variant._M_iterator._M_seq_type = _GLIBCXX_TYPEID(_Sequence); + _M_variant._M_iterator._M_sequence = __it._M_get_ucontainer(); + _M_variant._M_iterator._M_seq_type = _GLIBCXX_TYPEID(_UContainer); if (__it._M_singular()) { diff --git a/libstdc++-v3/include/debug/forward_list b/libstdc++-v3/include/debug/forward_list index 60a2542..9da7dda 100644 --- a/libstdc++-v3/include/debug/forward_list +++ b/libstdc++-v3/include/debug/forward_list @@ -58,44 +58,44 @@ namespace __gnu_debug class _Safe_forward_list : public _Safe_sequence<_SafeSequence> { - _SafeSequence& - _M_this() noexcept - { return *static_cast<_SafeSequence*>(this); } + const _SafeSequence* + _M_this() const noexcept + { return static_cast<const _SafeSequence*>(this); } static void - _M_swap_aux(_Safe_sequence_base& __lhs, + _S_swap_aux(const _Safe_forward_list& __lhs, _Safe_iterator_base*& __lhs_iterators, - _Safe_sequence_base& __rhs, + const _Safe_forward_list& __rhs, _Safe_iterator_base*& __rhs_iterators); - void _M_swap_single(_Safe_sequence_base&) noexcept; + void _M_swap_single(const _Safe_forward_list&) const noexcept; protected: void - _M_invalidate_all() + _M_invalidate_all() const { - using _Base_const_iterator = __decltype(_M_this()._M_base().cend()); + using _Base_const_iterator = __decltype(_M_this()->_M_base().cend()); this->_M_invalidate_if([this](_Base_const_iterator __it) { - return __it != _M_this()._M_base().cbefore_begin() - && __it != _M_this()._M_base().cend(); }); + return __it != _M_this()->_M_base().cbefore_begin() + && __it != _M_this()->_M_base().cend(); }); } - void _M_swap(_Safe_sequence_base&) noexcept; + void + _M_swap(const _Safe_forward_list&) const noexcept; }; template<typename _SafeSequence> void _Safe_forward_list<_SafeSequence>:: - _M_swap_aux(_Safe_sequence_base& __lhs, + _S_swap_aux(const _Safe_forward_list& __lhs, _Safe_iterator_base*& __lhs_iterators, - _Safe_sequence_base& __rhs, + const _Safe_forward_list& __rhs, _Safe_iterator_base*& __rhs_iterators) { using const_iterator = typename _SafeSequence::const_iterator; _Safe_iterator_base* __bbegin_its = 0; _Safe_iterator_base* __last_bbegin = 0; - _SafeSequence& __rseq = static_cast<_SafeSequence&>(__rhs); for (_Safe_iterator_base* __iter = __lhs_iterators; __iter;) { @@ -104,7 +104,7 @@ namespace __gnu_debug const_iterator* __victim = static_cast<const_iterator*>(__victim_base); __iter = __iter->_M_next; - if (__victim->base() == __rseq._M_base().cbefore_begin()) + if (__victim->base() == __rhs._M_this()->_M_base().cbefore_begin()) { __victim->_M_unlink(); if (__lhs_iterators == __victim_base) @@ -136,21 +136,21 @@ namespace __gnu_debug template<typename _SafeSequence> void _Safe_forward_list<_SafeSequence>:: - _M_swap_single(_Safe_sequence_base& __other) noexcept + _M_swap_single(const _Safe_forward_list& __other) const noexcept { - std::swap(_M_this()._M_iterators, __other._M_iterators); - std::swap(_M_this()._M_const_iterators, __other._M_const_iterators); + std::swap(_M_this()->_M_iterators, __other._M_iterators); + std::swap(_M_this()->_M_const_iterators, __other._M_const_iterators); // Useless, always 1 on forward_list - //std::swap(_M_this()_M_version, __other._M_version); - _Safe_iterator_base* __this_its = _M_this()._M_iterators; - _M_swap_aux(__other, __other._M_iterators, - _M_this(), _M_this()._M_iterators); - _Safe_iterator_base* __this_const_its = _M_this()._M_const_iterators; - _M_swap_aux(__other, __other._M_const_iterators, - _M_this(), _M_this()._M_const_iterators); - _M_swap_aux(_M_this(), __this_its, + //std::swap(_M_this()->_M_version, __other._M_version); + _Safe_iterator_base* __this_its = _M_this()->_M_iterators; + _S_swap_aux(__other, __other._M_iterators, + *_M_this(), _M_this()->_M_iterators); + _Safe_iterator_base* __this_const_its = _M_this()->_M_const_iterators; + _S_swap_aux(__other, __other._M_const_iterators, + *_M_this(), _M_this()->_M_const_iterators); + _S_swap_aux(*_M_this(), __this_its, __other, __other._M_iterators); - _M_swap_aux(_M_this(), __this_const_its, + _S_swap_aux(*_M_this(), __this_const_its, __other, __other._M_const_iterators); } @@ -159,13 +159,12 @@ namespace __gnu_debug template<typename _SafeSequence> void _Safe_forward_list<_SafeSequence>:: - _M_swap(_Safe_sequence_base& __other) noexcept + _M_swap(const _Safe_forward_list& __other) const noexcept { // We need to lock both sequences to swap using namespace __gnu_cxx; - __mutex *__this_mutex = &_M_this()._M_get_mutex(); - __mutex *__other_mutex = - &static_cast<_SafeSequence&>(__other)._M_get_mutex(); + __mutex *__this_mutex = &_M_this()->_M_get_mutex(); + __mutex *__other_mutex = &__other._M_get_mutex(); if (__this_mutex == __other_mutex) { __scoped_lock __lock(*__this_mutex); @@ -565,7 +564,8 @@ namespace __debug void resize(size_type __sz) { - this->_M_detach_singular(); + const forward_list* __this = this; + __this->_M_detach_singular(); // if __sz < size(), invalidate all iterators in [begin+__sz, end() _Base_iterator __victim = _Base::begin(); @@ -585,7 +585,7 @@ namespace __debug } __catch(...) { - this->_M_revalidate_singular(); + __this->_M_revalidate_singular(); __throw_exception_again; } } @@ -593,7 +593,8 @@ namespace __debug void resize(size_type __sz, const value_type& __val) { - this->_M_detach_singular(); + const forward_list* __this = this; + __this->_M_detach_singular(); // if __sz < size(), invalidate all iterators in [begin+__sz, end()) _Base_iterator __victim = _Base::begin(); @@ -613,7 +614,7 @@ namespace __debug } __catch(...) { - this->_M_revalidate_singular(); + __this->_M_revalidate_singular(); __throw_exception_again; } } diff --git a/libstdc++-v3/include/debug/list b/libstdc++-v3/include/debug/list index a9d974c..c502c7c 100644 --- a/libstdc++-v3/include/debug/list +++ b/libstdc++-v3/include/debug/list @@ -321,7 +321,8 @@ namespace __debug void resize(size_type __sz) { - this->_M_detach_singular(); + const list* __this = this; + __this->_M_detach_singular(); // if __sz < size(), invalidate all iterators in [begin + __sz, end()) _Base_iterator __victim = _Base::begin(); @@ -338,7 +339,7 @@ namespace __debug } __catch(...) { - this->_M_revalidate_singular(); + __this->_M_revalidate_singular(); __throw_exception_again; } } @@ -346,7 +347,8 @@ namespace __debug void resize(size_type __sz, const _Tp& __c) { - this->_M_detach_singular(); + const list* __this = this; + __this->_M_detach_singular(); // if __sz < size(), invalidate all iterators in [begin + __sz, end()) _Base_iterator __victim = _Base::begin(); @@ -363,7 +365,7 @@ namespace __debug } __catch(...) { - this->_M_revalidate_singular(); + __this->_M_revalidate_singular(); __throw_exception_again; } } @@ -371,7 +373,8 @@ namespace __debug void resize(size_type __sz, _Tp __c = _Tp()) { - this->_M_detach_singular(); + const list* __this = this; + __this->_M_detach_singular(); // if __sz < size(), invalidate all iterators in [begin + __sz, end()) _Base_iterator __victim = _Base::begin(); @@ -388,7 +391,7 @@ namespace __debug } __catch(...) { - this->_M_revalidate_singular(); + __this->_M_revalidate_singular(); __throw_exception_again; } } diff --git a/libstdc++-v3/include/debug/safe_base.h b/libstdc++-v3/include/debug/safe_base.h index cf3f170..4462297 100644 --- a/libstdc++-v3/include/debug/safe_base.h +++ b/libstdc++-v3/include/debug/safe_base.h @@ -53,8 +53,10 @@ namespace __gnu_debug public: /** The sequence this iterator references; may be NULL to indicate - a singular iterator. */ - _Safe_sequence_base* _M_sequence; + * a singular iterator. Stored as pointer-to-const because sequence + * could be declared as const. + */ + const _Safe_sequence_base* _M_sequence; /** The version number of this iterator. The sentinel value 0 is * used to indicate an invalidated iterator (i.e., one that is @@ -92,7 +94,7 @@ namespace __gnu_debug : _M_sequence(0), _M_version(0), _M_prior(0), _M_next(0) { if (!std::__is_constant_evaluated()) - this->_M_attach(const_cast<_Safe_sequence_base*>(__seq), __constant); + this->_M_attach(__seq, __constant); } /** Initializes the iterator to reference the same sequence that @@ -115,7 +117,7 @@ namespace __gnu_debug /** For use in _Safe_iterator. */ __gnu_cxx::__mutex& - _M_get_mutex() throw (); + _M_get_mutex() _GLIBCXX_USE_NOEXCEPT; /** Attaches this iterator to the given sequence, detaching it * from whatever sequence it was attached to originally. If the @@ -123,11 +125,12 @@ namespace __gnu_debug * unattached. */ void - _M_attach(_Safe_sequence_base* __seq, bool __constant); + _M_attach(const _Safe_sequence_base* __seq, bool __constant); /** Likewise, but not thread-safe. */ void - _M_attach_single(_Safe_sequence_base* __seq, bool __constant) throw (); + _M_attach_single(const _Safe_sequence_base* __seq, + bool __constant) _GLIBCXX_USE_NOEXCEPT; /** Detach the iterator for whatever sequence it is attached to, * if any. @@ -135,10 +138,23 @@ namespace __gnu_debug void _M_detach(); +#if !_GLIBCXX_INLINE_VERSION + private: + /***************************************************************/ + /** Not-const method preserved for abi backward compatibility. */ + void + _M_attach(_Safe_sequence_base* __seq, bool __constant); + + void + _M_attach_single(_Safe_sequence_base* __seq, + bool __constant) _GLIBCXX_USE_NOEXCEPT; + /***************************************************************/ +#endif + public: /** Likewise, but not thread-safe. */ void - _M_detach_single() throw (); + _M_detach_single() _GLIBCXX_USE_NOEXCEPT; /** Determines if we are attached to the given sequence. */ bool @@ -147,13 +163,13 @@ namespace __gnu_debug /** Is this iterator singular? */ _GLIBCXX_PURE bool - _M_singular() const throw (); + _M_singular() const _GLIBCXX_USE_NOEXCEPT; /** Can we compare this iterator to the given iterator @p __x? Returns true if both iterators are nonsingular and reference the same sequence. */ _GLIBCXX_PURE bool - _M_can_compare(const _Safe_iterator_base& __x) const throw (); + _M_can_compare(const _Safe_iterator_base& __x) const _GLIBCXX_USE_NOEXCEPT; /** Invalidate the iterator, making it singular. */ void @@ -162,11 +178,11 @@ namespace __gnu_debug /** Reset all member variables */ void - _M_reset() throw (); + _M_reset() _GLIBCXX_USE_NOEXCEPT; /** Unlink itself */ void - _M_unlink() throw () + _M_unlink() _GLIBCXX_USE_NOEXCEPT { if (_M_prior) _M_prior->_M_next = _M_next; @@ -246,14 +262,14 @@ namespace __gnu_debug /** Detach all iterators, leaving them singular. */ void - _M_detach_all(); + _M_detach_all() const; /** Detach all singular iterators. * @post for all iterators i attached to this sequence, * i->_M_version == _M_version. */ void - _M_detach_singular(); + _M_detach_singular() const; /** Revalidates all attached singular iterators. This method may * be used to validate iterators that were invalidated before @@ -261,7 +277,7 @@ namespace __gnu_debug * valid again). */ void - _M_revalidate_singular(); + _M_revalidate_singular() const; /** Swap this sequence with the given sequence. This operation * also swaps ownership of the iterators, so that when the @@ -269,11 +285,11 @@ namespace __gnu_debug * one container now reference the other container. */ void - _M_swap(_Safe_sequence_base& __x) _GLIBCXX_USE_NOEXCEPT; + _M_swap(const _Safe_sequence_base& __x) const _GLIBCXX_USE_NOEXCEPT; /** For use in _Safe_sequence. */ __gnu_cxx::__mutex& - _M_get_mutex() throw (); + _M_get_mutex() const _GLIBCXX_USE_NOEXCEPT; /** Invalidates all iterators. */ void @@ -281,21 +297,42 @@ namespace __gnu_debug { if (++_M_version == 0) _M_version = 1; } private: +#if !_GLIBCXX_INLINE_VERSION + /***************************************************************/ + /** Not-const method preserved for abi backward compatibility. */ + void + _M_detach_all(); + + void + _M_detach_singular(); + + void + _M_revalidate_singular(); + + void + _M_swap(_Safe_sequence_base& __x) _GLIBCXX_USE_NOEXCEPT; + + __gnu_cxx::__mutex& + _M_get_mutex() _GLIBCXX_USE_NOEXCEPT; + /***************************************************************/ +#endif + /** Attach an iterator to this sequence. */ void - _M_attach(_Safe_iterator_base* __it, bool __constant); + _M_attach(_Safe_iterator_base* __it, bool __constant) const; /** Likewise but not thread safe. */ void - _M_attach_single(_Safe_iterator_base* __it, bool __constant) throw (); + _M_attach_single(_Safe_iterator_base* __it, + bool __constant) const _GLIBCXX_USE_NOEXCEPT; /** Detach an iterator from this sequence */ void - _M_detach(_Safe_iterator_base* __it); + _M_detach(_Safe_iterator_base* __it) const; /** Likewise but not thread safe. */ void - _M_detach_single(_Safe_iterator_base* __it) throw (); + _M_detach_single(_Safe_iterator_base* __it) const _GLIBCXX_USE_NOEXCEPT; }; } // namespace __gnu_debug diff --git a/libstdc++-v3/include/debug/safe_container.h b/libstdc++-v3/include/debug/safe_container.h index cb1e69a..3341806 100644 --- a/libstdc++-v3/include/debug/safe_container.h +++ b/libstdc++-v3/include/debug/safe_container.h @@ -44,9 +44,9 @@ namespace __gnu_debug typedef _SafeBase<_SafeContainer> _Base; _GLIBCXX20_CONSTEXPR - _SafeContainer& - _M_cont() _GLIBCXX_NOEXCEPT - { return *static_cast<_SafeContainer*>(this); } + const _SafeContainer& + _M_cont() const _GLIBCXX_NOEXCEPT + { return *static_cast<const _SafeContainer*>(this); } protected: #if __cplusplus >= 201103L @@ -56,6 +56,11 @@ namespace __gnu_debug private: _GLIBCXX20_CONSTEXPR + void + _M_swap_base(const _Safe_container& __x) const noexcept + { _Base::_M_swap(__x); } + + _GLIBCXX20_CONSTEXPR _Safe_container(_Safe_container&& __x, const _Alloc&, std::true_type) : _Safe_container(std::move(__x)) { } @@ -67,7 +72,7 @@ namespace __gnu_debug if (!std::__is_constant_evaluated()) { if (__x._M_cont().get_allocator() == __a) - _Base::_M_swap(__x); + _M_swap_base(__x); else __x._M_invalidate_all(); } @@ -115,12 +120,12 @@ namespace __gnu_debug bool __xfer_memory = _Alloc_traits::_S_propagate_on_move_assign() || _M_cont().get_allocator() == __x._M_cont().get_allocator(); if (__xfer_memory) - _Base::_M_swap(__x); + _M_swap_base(__x); else this->_M_invalidate_all(); } else - _Base::_M_swap(__x); + _M_swap_base(__x); __x._M_invalidate_all(); return *this; @@ -128,7 +133,7 @@ namespace __gnu_debug _GLIBCXX20_CONSTEXPR void - _M_swap(_Safe_container& __x) noexcept + _M_swap(const _Safe_container& __x) const noexcept { if (_IsCxx11AllocatorAware) { @@ -139,8 +144,12 @@ namespace __gnu_debug __x._M_cont()._M_base()); } - _Base::_M_swap(__x); + _M_swap_base(__x); } +#else + void + _M_swap(const _Safe_container& __x) const throw() + { _Base::_M_swap(__x); } #endif }; diff --git a/libstdc++-v3/include/debug/safe_iterator.h b/libstdc++-v3/include/debug/safe_iterator.h index 7c56338..e0b1b46 100644 --- a/libstdc++-v3/include/debug/safe_iterator.h +++ b/libstdc++-v3/include/debug/safe_iterator.h @@ -224,7 +224,7 @@ namespace __gnu_debug _M_message(__msg_init_copy_singular) ._M_iterator(*this, "this") ._M_iterator(__x, "other")); - _Safe_sequence_base* __seq = __x._M_sequence; + const _Safe_sequence_base* __seq = __x._M_sequence; __x._M_detach(); std::swap(base(), __x.base()); _M_attach(__seq); @@ -445,12 +445,12 @@ namespace __gnu_debug /** Attach iterator to the given sequence. */ void - _M_attach(_Safe_sequence_base* __seq) + _M_attach(const _Safe_sequence_base* __seq) { _Safe_base::_M_attach(__seq, _S_constant()); } /** Likewise, but not thread-safe. */ void - _M_attach_single(_Safe_sequence_base* __seq) + _M_attach_single(const _Safe_sequence_base* __seq) { _Safe_base::_M_attach_single(__seq, _S_constant()); } /// Is the iterator dereferenceable? @@ -500,7 +500,13 @@ namespace __gnu_debug typename __gnu_cxx::__conditional_type< _IsConstant::__value, const _Sequence*, _Sequence*>::__type _M_get_sequence() const - { return static_cast<_Sequence*>(_M_sequence); } + { + // Looks like not const-correct, but if _IsConstant the constness + // is restored when returning the sequence pointer and if not + // _IsConstant we are allowed to remove constness. + return static_cast<_Sequence*> + (const_cast<_Safe_sequence_base*>(_M_sequence)); + } // Get distance to __rhs. typename _Distance_traits<_Iterator>::__type diff --git a/libstdc++-v3/include/debug/safe_local_iterator.h b/libstdc++-v3/include/debug/safe_local_iterator.h index c84f4f1..47b3a80 100644 --- a/libstdc++-v3/include/debug/safe_local_iterator.h +++ b/libstdc++-v3/include/debug/safe_local_iterator.h @@ -52,15 +52,15 @@ namespace __gnu_debug /** \brief Safe iterator wrapper. * * The class template %_Safe_local_iterator is a wrapper around an - * iterator that tracks the iterator's movement among sequences and - * checks that operations performed on the "safe" iterator are + * iterator that tracks the iterator's movement among unordered containers + * and checks that operations performed on the "safe" iterator are * legal. In additional to the basic iterator operations (which are * validated, and then passed to the underlying iterator), * %_Safe_local_iterator has member functions for iterator invalidation, - * attaching/detaching the iterator from sequences, and querying + * attaching/detaching the iterator from unordered containers, and querying * the iterator's state. */ - template<typename _Iterator, typename _Sequence> + template<typename _Iterator, typename _UContainer> class _Safe_local_iterator : private _Iterator , public _Safe_local_iterator_base @@ -68,28 +68,27 @@ namespace __gnu_debug typedef _Iterator _Iter_base; typedef _Safe_local_iterator_base _Safe_base; - typedef typename _Sequence::size_type size_type; + typedef typename _UContainer::size_type size_type; typedef std::iterator_traits<_Iterator> _Traits; - typedef std::__are_same< - typename _Sequence::_Base::const_local_iterator, - _Iterator> _IsConstant; + using _IsConstant = std::__are_same< + typename _UContainer::_Base::const_local_iterator, _Iterator>; - typedef typename __gnu_cxx::__conditional_type<_IsConstant::__value, - typename _Sequence::_Base::local_iterator, - typename _Sequence::_Base::const_local_iterator>::__type - _OtherIterator; + using _OtherIterator = std::__conditional_t< + _IsConstant::__value, + typename _UContainer::_Base::local_iterator, + typename _UContainer::_Base::const_local_iterator>; typedef _Safe_local_iterator _Self; - typedef _Safe_local_iterator<_OtherIterator, _Sequence> _OtherSelf; + typedef _Safe_local_iterator<_OtherIterator, _UContainer> _OtherSelf; struct _Unchecked { }; _Safe_local_iterator(const _Safe_local_iterator& __x, _Unchecked) noexcept : _Iter_base(__x.base()) - { _M_attach(__x._M_sequence); } + { _M_attach(__x._M_safe_container()); } public: typedef _Iterator iterator_type; @@ -104,12 +103,13 @@ namespace __gnu_debug /** * @brief Safe iterator construction from an unsafe iterator and - * its sequence. + * its unordered container. * - * @pre @p seq is not NULL + * @pre @p cont is not NULL * @post this is not singular */ - _Safe_local_iterator(_Iterator __i, const _Safe_sequence_base* __cont) + _Safe_local_iterator(_Iterator __i, + const _Safe_unordered_container_base* __cont) : _Iter_base(__i), _Safe_base(__cont, _S_constant()) { } @@ -126,7 +126,7 @@ namespace __gnu_debug _M_message(__msg_init_copy_singular) ._M_iterator(*this, "this") ._M_iterator(__x, "other")); - _M_attach(__x._M_sequence); + _M_attach(__x._M_safe_container()); } /** @@ -141,7 +141,7 @@ namespace __gnu_debug _M_message(__msg_init_copy_singular) ._M_iterator(*this, "this") ._M_iterator(__x, "other")); - auto __cont = __x._M_sequence; + auto __cont = __x._M_safe_container(); __x._M_detach(); std::swap(base(), __x.base()); _M_attach(__cont); @@ -156,7 +156,7 @@ namespace __gnu_debug const _Safe_local_iterator<_MutableIterator, typename __gnu_cxx::__enable_if<_IsConstant::__value && std::__are_same<_MutableIterator, _OtherIterator>::__value, - _Sequence>::__type>& __x) noexcept + _UContainer>::__type>& __x) noexcept : _Iter_base(__x.base()) { // _GLIBCXX_RESOLVE_LIB_DEFECTS @@ -166,7 +166,7 @@ namespace __gnu_debug _M_message(__msg_init_const_singular) ._M_iterator(*this, "this") ._M_iterator(__x, "other")); - _M_attach(__x._M_sequence); + _M_attach(__x._M_safe_container()); } /** @@ -193,7 +193,7 @@ namespace __gnu_debug { _M_detach(); base() = __x.base(); - _M_attach(__x._M_sequence); + _M_attach(__x._M_safe_container()); } return *this; @@ -225,7 +225,7 @@ namespace __gnu_debug { _M_detach(); base() = __x.base(); - _M_attach(__x._M_sequence); + _M_attach(__x._M_safe_container()); } __x._M_detach(); @@ -318,15 +318,15 @@ namespace __gnu_debug */ operator _Iterator() const { return *this; } - /** Attach iterator to the given sequence. */ + /** Attach iterator to the given unordered container. */ void - _M_attach(_Safe_sequence_base* __seq) - { _Safe_base::_M_attach(__seq, _S_constant()); } + _M_attach(const _Safe_unordered_container_base* __cont) + { _Safe_base::_M_attach(__cont, _S_constant()); } /** Likewise, but not thread-safe. */ void - _M_attach_single(_Safe_sequence_base* __seq) - { _Safe_base::_M_attach_single(__seq, _S_constant()); } + _M_attach_single(const _Safe_unordered_container_base* __cont) + { _Safe_base::_M_attach_single(__cont, _S_constant()); } /// Is the iterator dereferenceable? bool @@ -353,25 +353,31 @@ namespace __gnu_debug typename _Distance_traits<_Iterator>::__type _M_get_distance_to(const _Safe_local_iterator& __rhs) const; - // The sequence this iterator references. - typename __gnu_cxx::__conditional_type< - _IsConstant::__value, const _Sequence*, _Sequence*>::__type - _M_get_sequence() const - { return static_cast<_Sequence*>(_M_sequence); } + // The unordered container this iterator references. + std::__conditional_t< + _IsConstant::__value, const _UContainer*, _UContainer*> + _M_get_ucontainer() const + { + // Looks like not const-correct, but if _IsConstant the constness + // is restored when returning the container pointer and if not + // _IsConstant we are allowed to remove constness. + return static_cast<_UContainer*> + (const_cast<_Safe_unordered_container_base*>(_M_safe_container())); + } - /// Is this iterator equal to the sequence's begin(bucket) iterator? + /// Is this iterator equal to the container's begin(bucket) iterator? bool _M_is_begin() const - { return base() == _M_get_sequence()->_M_base().begin(bucket()); } + { return base() == _M_get_ucontainer()->_M_base().begin(bucket()); } - /// Is this iterator equal to the sequence's end(bucket) iterator? + /// Is this iterator equal to the container's end(bucket) iterator? bool _M_is_end() const - { return base() == _M_get_sequence()->_M_base().end(bucket()); } + { return base() == _M_get_ucontainer()->_M_base().end(bucket()); } /// Is this iterator part of the same bucket as the other one? template<typename _Other> bool _M_in_same_bucket(const _Safe_local_iterator<_Other, - _Sequence>& __other) const + _UContainer>& __other) const { return bucket() == __other.bucket(); } friend inline bool @@ -404,31 +410,31 @@ namespace __gnu_debug }; /** Safe local iterators know how to check if they form a valid range. */ - template<typename _Iterator, typename _Sequence> + template<typename _Iterator, typename _UContainer> inline bool - __valid_range(const _Safe_local_iterator<_Iterator, _Sequence>& __first, - const _Safe_local_iterator<_Iterator, _Sequence>& __last, + __valid_range(const _Safe_local_iterator<_Iterator, _UContainer>& __first, + const _Safe_local_iterator<_Iterator, _UContainer>& __last, typename _Distance_traits<_Iterator>::__type& __dist_info) { return __first._M_valid_range(__last, __dist_info); } - template<typename _Iterator, typename _Sequence> + template<typename _Iterator, typename _UContainer> inline bool - __valid_range(const _Safe_local_iterator<_Iterator, _Sequence>& __first, - const _Safe_local_iterator<_Iterator, _Sequence>& __last) + __valid_range(const _Safe_local_iterator<_Iterator, _UContainer>& __first, + const _Safe_local_iterator<_Iterator, _UContainer>& __last) { typename _Distance_traits<_Iterator>::__type __dist_info; return __first._M_valid_range(__last, __dist_info); } #if __cplusplus < 201103L - template<typename _Iterator, typename _Sequence> - struct _Unsafe_type<_Safe_local_iterator<_Iterator, _Sequence> > + template<typename _Iterator, typename _UContainer> + struct _Unsafe_type<_Safe_local_iterator<_Iterator, _UContainer> > { typedef _Iterator _Type; }; #endif - template<typename _Iterator, typename _Sequence> + template<typename _Iterator, typename _UContainer> inline _Iterator - __unsafe(const _Safe_local_iterator<_Iterator, _Sequence>& __it) + __unsafe(const _Safe_local_iterator<_Iterator, _UContainer>& __it) { return __it.base(); } } // namespace __gnu_debug diff --git a/libstdc++-v3/include/debug/safe_local_iterator.tcc b/libstdc++-v3/include/debug/safe_local_iterator.tcc index 71e5320..10fec3f 100644 --- a/libstdc++-v3/include/debug/safe_local_iterator.tcc +++ b/libstdc++-v3/include/debug/safe_local_iterator.tcc @@ -44,7 +44,7 @@ namespace __gnu_debug if (__rhs._M_is_end()) return { - _M_get_sequence()->bucket_size(bucket()), + _M_get_ucontainer()->bucket_size(bucket()), __dp_exact }; @@ -56,7 +56,7 @@ namespace __gnu_debug if (__rhs._M_is_begin()) return { - -_M_get_sequence()->bucket_size(bucket()), + -_M_get_ucontainer()->bucket_size(bucket()), __dp_exact }; diff --git a/libstdc++-v3/include/debug/safe_sequence.h b/libstdc++-v3/include/debug/safe_sequence.h index 6b35afa..e10474a 100644 --- a/libstdc++-v3/include/debug/safe_sequence.h +++ b/libstdc++-v3/include/debug/safe_sequence.h @@ -114,7 +114,7 @@ namespace __gnu_debug in the safe ones. */ template<typename _Predicate> void - _M_invalidate_if(_Predicate __pred); + _M_invalidate_if(_Predicate __pred) const; /** Transfers all iterators @c x that reference @c from sequence, are not singular, and for which @c __pred(x) returns @c @@ -122,7 +122,8 @@ namespace __gnu_debug in the safe ones. */ template<typename _Predicate> void - _M_transfer_from_if(_Safe_sequence& __from, _Predicate __pred); + _M_transfer_from_if(const _Safe_sequence& __from, + _Predicate __pred) const; }; /// Like _Safe_sequence but with a special _M_invalidate_all implementation @@ -133,12 +134,12 @@ namespace __gnu_debug { protected: void - _M_invalidate_all() + _M_invalidate_all() const { typedef typename _Sequence::const_iterator _Const_iterator; typedef typename _Const_iterator::iterator_type _Base_const_iterator; typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal; - const _Sequence& __seq = *static_cast<_Sequence*>(this); + const _Sequence& __seq = *static_cast<const _Sequence*>(this); this->_M_invalidate_if(_Not_equal(__seq._M_base().end())); } }; diff --git a/libstdc++-v3/include/debug/safe_sequence.tcc b/libstdc++-v3/include/debug/safe_sequence.tcc index 336bf2a..053361d 100644 --- a/libstdc++-v3/include/debug/safe_sequence.tcc +++ b/libstdc++-v3/include/debug/safe_sequence.tcc @@ -35,7 +35,7 @@ namespace __gnu_debug template<typename _Predicate> void _Safe_sequence<_Sequence>:: - _M_invalidate_if(_Predicate __pred) + _M_invalidate_if(_Predicate __pred) const { typedef typename _Sequence::iterator iterator; typedef typename _Sequence::const_iterator const_iterator; @@ -66,7 +66,7 @@ namespace __gnu_debug template<typename _Predicate> void _Safe_sequence<_Sequence>:: - _M_transfer_from_if(_Safe_sequence& __from, _Predicate __pred) + _M_transfer_from_if(const _Safe_sequence& __from, _Predicate __pred) const { if (this == std::__addressof(__from)) return; @@ -104,7 +104,7 @@ namespace __gnu_debug } for (_Safe_iterator_base* __iter2 = __from._M_const_iterators; - __iter2;) + __iter2;) { _Safe_iterator_base* __victim_base = __iter2; const_iterator* __victim = diff --git a/libstdc++-v3/include/debug/safe_unordered_base.h b/libstdc++-v3/include/debug/safe_unordered_base.h index 1547f5b..55cf581 100644 --- a/libstdc++-v3/include/debug/safe_unordered_base.h +++ b/libstdc++-v3/include/debug/safe_unordered_base.h @@ -49,6 +49,10 @@ namespace __gnu_debug */ class _Safe_local_iterator_base : public _Safe_iterator_base { + public: + const _Safe_unordered_container_base* + _M_safe_container() const noexcept; + protected: /** Initializes the iterator and makes it singular. */ _Safe_local_iterator_base() @@ -61,32 +65,32 @@ namespace __gnu_debug * singular. Otherwise, the iterator will reference @p __seq and * be nonsingular. */ - _Safe_local_iterator_base(const _Safe_sequence_base* __seq, bool __constant) - { this->_M_attach(const_cast<_Safe_sequence_base*>(__seq), __constant); } + _Safe_local_iterator_base(const _Safe_unordered_container_base* __seq, + bool __constant) + { _M_attach(__seq, __constant); } /** Initializes the iterator to reference the same container that @p __x does. @p __constant is true if this is a constant iterator, and false if it is mutable. */ _Safe_local_iterator_base(const _Safe_local_iterator_base& __x, bool __constant) - { this->_M_attach(__x._M_sequence, __constant); } + { this->_M_attach(__x._M_safe_container(), __constant); } ~_Safe_local_iterator_base() { this->_M_detach(); } - _Safe_unordered_container_base* - _M_get_container() const noexcept; - /** Attaches this iterator to the given container, detaching it * from whatever container it was attached to originally. If the * new container is the NULL pointer, the iterator is left * unattached. */ void - _M_attach(_Safe_sequence_base* __seq, bool __constant); + _M_attach(const _Safe_unordered_container_base* __cont, + bool __constant); /** Likewise, but not thread-safe. */ void - _M_attach_single(_Safe_sequence_base* __seq, bool __constant) throw (); + _M_attach_single(const _Safe_unordered_container_base* __cont, + bool __constant) noexcept; /** Detach the iterator for whatever container it is attached to, * if any. @@ -96,7 +100,19 @@ namespace __gnu_debug /** Likewise, but not thread-safe. */ void - _M_detach_single() throw (); + _M_detach_single() noexcept; + +#if !_GLIBCXX_INLINE_VERSION + private: + /***************************************************************/ + /** Not-const method preserved for abi backward compatibility. */ + void + _M_attach(_Safe_sequence_base* __seq, bool __constant); + + void + _M_attach_single(_Safe_sequence_base* __seq, bool __constant) noexcept; + /***************************************************************/ +#endif }; /** @@ -124,10 +140,10 @@ namespace __gnu_debug public: /// The list of mutable local iterators that reference this container - _Safe_iterator_base* _M_local_iterators; + mutable _Safe_iterator_base* _M_local_iterators; /// The list of constant local iterators that reference this container - _Safe_iterator_base* _M_const_local_iterators; + mutable _Safe_iterator_base* _M_const_local_iterators; protected: // Initialize with a version number of 1 and no iterators @@ -153,7 +169,7 @@ namespace __gnu_debug /** Detach all iterators, leaving them singular. */ void - _M_detach_all(); + _M_detach_all() const; /** Swap this container with the given container. This operation * also swaps ownership of the iterators, so that when the @@ -161,25 +177,42 @@ namespace __gnu_debug * one container now reference the other container. */ void - _M_swap(_Safe_unordered_container_base& __x) noexcept; + _M_swap(const _Safe_unordered_container_base& __x) const noexcept; private: +#if !_GLIBCXX_INLINE_VERSION + /***************************************************************/ + /** Not-const method preserved for abi backward compatibility. */ + void + _M_detach_all(); + + void + _M_swap(_Safe_unordered_container_base& __x) noexcept; + /***************************************************************/ +#endif + /** Attach an iterator to this container. */ void - _M_attach_local(_Safe_iterator_base* __it, bool __constant); + _M_attach_local(_Safe_iterator_base* __it, bool __constant) const; /** Likewise but not thread safe. */ void - _M_attach_local_single(_Safe_iterator_base* __it, bool __constant) throw (); + _M_attach_local_single(_Safe_iterator_base* __it, + bool __constant) const noexcept; /** Detach an iterator from this container */ void - _M_detach_local(_Safe_iterator_base* __it); + _M_detach_local(_Safe_iterator_base* __it) const; /** Likewise but not thread safe. */ void - _M_detach_local_single(_Safe_iterator_base* __it) throw (); + _M_detach_local_single(_Safe_iterator_base* __it) const noexcept; }; + + inline const _Safe_unordered_container_base* + _Safe_local_iterator_base:: + _M_safe_container() const noexcept + { return static_cast<const _Safe_unordered_container_base*>(_M_sequence); } } // namespace __gnu_debug #endif diff --git a/libstdc++-v3/include/debug/safe_unordered_container.h b/libstdc++-v3/include/debug/safe_unordered_container.h index 2ba27db..b67b7e0 100644 --- a/libstdc++-v3/include/debug/safe_unordered_container.h +++ b/libstdc++-v3/include/debug/safe_unordered_container.h @@ -62,6 +62,10 @@ namespace __gnu_debug _M_cont() noexcept { return *static_cast<_Container*>(this); } + const _Safe_unordered_container* + _M_self() const + { return this; } + protected: void _M_invalidate_locals() diff --git a/libstdc++-v3/include/debug/safe_unordered_container.tcc b/libstdc++-v3/include/debug/safe_unordered_container.tcc index 6819389..0732e63 100644 --- a/libstdc++-v3/include/debug/safe_unordered_container.tcc +++ b/libstdc++-v3/include/debug/safe_unordered_container.tcc @@ -40,7 +40,7 @@ namespace __gnu_debug typedef typename _Container::iterator iterator; typedef typename _Container::const_iterator const_iterator; - __gnu_cxx::__scoped_lock sentry(this->_M_get_mutex()); + __gnu_cxx::__scoped_lock sentry(_M_self()->_M_get_mutex()); for (_Safe_iterator_base* __iter = _M_iterators; __iter;) { iterator* __victim = static_cast<iterator*>(__iter); @@ -72,7 +72,7 @@ namespace __gnu_debug typedef typename _Container::local_iterator local_iterator; typedef typename _Container::const_local_iterator const_local_iterator; - __gnu_cxx::__scoped_lock sentry(this->_M_get_mutex()); + __gnu_cxx::__scoped_lock sentry(_M_self()->_M_get_mutex()); for (_Safe_iterator_base* __iter = _M_local_iterators; __iter;) { local_iterator* __victim = static_cast<local_iterator*>(__iter); diff --git a/libstdc++-v3/include/std/format b/libstdc++-v3/include/std/format index 5749aa1..d584b81 100644 --- a/libstdc++-v3/include/std/format +++ b/libstdc++-v3/include/std/format @@ -6030,13 +6030,13 @@ namespace __format constexpr void set_separator(basic_string_view<_CharT> __sep) noexcept - requires (!_S_range_format_is_string) + requires (format_kind<_Rg> == range_format::sequence) { _M_under.set_separator(__sep); } constexpr void set_brackets(basic_string_view<_CharT> __open, basic_string_view<_CharT> __close) noexcept - requires (!_S_range_format_is_string) + requires (format_kind<_Rg> == range_format::sequence) { _M_under.set_brackets(__open, __close); } // We deviate from standard, that declares this as template accepting diff --git a/libstdc++-v3/include/std/mdspan b/libstdc++-v3/include/std/mdspan index 4a06fb2..5d16de5 100644 --- a/libstdc++-v3/include/std/mdspan +++ b/libstdc++-v3/include/std/mdspan @@ -111,9 +111,22 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION } template<size_t _OtherRank, typename _GetOtherExtent> + static constexpr bool + _S_is_compatible_extents(_GetOtherExtent __get_extent) noexcept + { + if constexpr (_OtherRank == _S_rank) + for (size_t __i = 0; __i < _S_rank; ++__i) + if (_Extents[__i] != dynamic_extent + && !cmp_equal(_Extents[__i], _S_int_cast(__get_extent(__i)))) + return false; + return true; + } + + template<size_t _OtherRank, typename _GetOtherExtent> constexpr void _M_init_dynamic_extents(_GetOtherExtent __get_extent) noexcept { + __glibcxx_assert(_S_is_compatible_extents<_OtherRank>(__get_extent)); for (size_t __i = 0; __i < _S_rank_dynamic; ++__i) { size_t __di = __i; @@ -385,13 +398,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION __rev_prod(const _Extents& __exts, size_t __r) noexcept { return __exts_prod(__exts, __r + 1, __exts.rank()); } + template<typename _Extents> + constexpr typename _Extents::index_type + __size(const _Extents& __exts) noexcept + { return __fwd_prod(__exts, __exts.rank()); } + template<typename _IndexType, size_t... _Counts> auto __build_dextents_type(integer_sequence<size_t, _Counts...>) -> extents<_IndexType, ((void) _Counts, dynamic_extent)...>; - - template<typename _Tp> - consteval size_t - __dynamic_extent() { return dynamic_extent; } } template<typename _IndexType, size_t _Rank> @@ -401,7 +415,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template<typename... _Integrals> requires (is_convertible_v<_Integrals, size_t> && ...) explicit extents(_Integrals...) -> - extents<size_t, __mdspan::__dynamic_extent<_Integrals>()...>; + extents<size_t, __detail::__maybe_static_ext<_Integrals>...>; struct layout_left { @@ -441,6 +455,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _IndexType __mult = 1; auto __update = [&, __pos = 0u](_IndexType __idx) mutable { + _GLIBCXX_DEBUG_ASSERT(cmp_less(__idx, __exts.extent(__pos))); __res += __idx * __mult; __mult *= __exts.extent(__pos); ++__pos; @@ -577,7 +592,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION constexpr index_type required_span_size() const noexcept - { return __mdspan::__fwd_prod(_M_extents, extents_type::rank()); } + { return __mdspan::__size(_M_extents); } template<__mdspan::__valid_index_type<index_type>... _Indices> requires (sizeof...(_Indices) == extents_type::rank()) @@ -651,6 +666,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION auto __update = [&, __pos = __exts.rank()](_IndexType) mutable { --__pos; + _GLIBCXX_DEBUG_ASSERT(cmp_less(__ind_arr[__pos], + __exts.extent(__pos))); __res += __ind_arr[__pos] * __mult; __mult *= __exts.extent(__pos); }; @@ -714,7 +731,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION constexpr index_type required_span_size() const noexcept - { return __mdspan::__fwd_prod(_M_extents, extents_type::rank()); } + { return __mdspan::__size(_M_extents); } template<__mdspan::__valid_index_type<index_type>... _Indices> requires (sizeof...(_Indices) == extents_type::rank()) @@ -822,6 +839,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { auto __update = [&, __pos = 0u](_IndexType __idx) mutable { + _GLIBCXX_DEBUG_ASSERT(cmp_less(__idx, + __m.extents().extent(__pos))); __res += __idx * __m.stride(__pos++); }; (__update(__indices), ...); @@ -968,8 +987,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { if constexpr (!is_always_exhaustive()) { - constexpr auto __rank = extents_type::rank(); - auto __size = __mdspan::__fwd_prod(_M_extents, __rank); + auto __size = __mdspan::__size(_M_extents); if(__size > 0) return __size == required_span_size(); } @@ -1035,6 +1053,291 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return __p + __i; } }; + namespace __mdspan + { + template<typename _Extents, typename _IndexType, size_t _Nm> + constexpr bool + __is_multi_index(const _Extents& __exts, span<_IndexType, _Nm> __indices) + { + static_assert(__exts.rank() == _Nm); + for (size_t __i = 0; __i < __exts.rank(); ++__i) + if (__indices[__i] >= __exts.extent(__i)) + return false; + return true; + } + } + + template<typename _ElementType, typename _Extents, + typename _LayoutPolicy = layout_right, + typename _AccessorPolicy = default_accessor<_ElementType>> + class mdspan + { + static_assert(!is_array_v<_ElementType>, + "ElementType must not be an array type"); + static_assert(!is_abstract_v<_ElementType>, + "ElementType must not be an abstract class type"); + static_assert(__mdspan::__is_extents<_Extents>, + "Extents must be a specialization of std::extents"); + static_assert(is_same_v<_ElementType, + typename _AccessorPolicy::element_type>); + + public: + using extents_type = _Extents; + using layout_type = _LayoutPolicy; + using accessor_type = _AccessorPolicy; + using mapping_type = typename layout_type::template mapping<extents_type>; + using element_type = _ElementType; + using value_type = remove_cv_t<element_type>; + using index_type = typename extents_type::index_type; + using size_type = typename extents_type::size_type; + using rank_type = typename extents_type::rank_type; + using data_handle_type = typename accessor_type::data_handle_type; + using reference = typename accessor_type::reference; + + static constexpr rank_type + rank() noexcept { return extents_type::rank(); } + + static constexpr rank_type + rank_dynamic() noexcept { return extents_type::rank_dynamic(); } + + static constexpr size_t + static_extent(rank_type __r) noexcept + { return extents_type::static_extent(__r); } + + constexpr index_type + extent(rank_type __r) const noexcept { return extents().extent(__r); } + + constexpr + mdspan() + requires (rank_dynamic() > 0) + && is_default_constructible_v<data_handle_type> + && is_default_constructible_v<mapping_type> + && is_default_constructible_v<accessor_type> + : _M_accessor(), _M_mapping(), _M_handle() + { } + + constexpr + mdspan(const mdspan& __other) = default; + + constexpr + mdspan(mdspan&& __other) = default; + + template<__mdspan::__valid_index_type<index_type>... _OIndexTypes> + requires (sizeof...(_OIndexTypes) == rank() + || sizeof...(_OIndexTypes) == rank_dynamic()) + && is_constructible_v<mapping_type, extents_type> + && is_default_constructible_v<accessor_type> + constexpr explicit + mdspan(data_handle_type __handle, _OIndexTypes... __exts) + : _M_accessor(), + _M_mapping(_Extents(static_cast<index_type>(std::move(__exts))...)), + _M_handle(std::move(__handle)) + { } + + template<__mdspan::__valid_index_type<index_type> _OIndexType, + size_t _Nm> + requires (_Nm == rank() || _Nm == rank_dynamic()) + && is_constructible_v<mapping_type, extents_type> + && is_default_constructible_v<accessor_type> + constexpr explicit(_Nm != rank_dynamic()) + mdspan(data_handle_type __handle, span<_OIndexType, _Nm> __exts) + : _M_accessor(), _M_mapping(extents_type(__exts)), + _M_handle(std::move(__handle)) + { } + + template<__mdspan::__valid_index_type<index_type> _OIndexType, + size_t _Nm> + requires (_Nm == rank() || _Nm == rank_dynamic()) + && is_constructible_v<mapping_type, extents_type> + && is_default_constructible_v<accessor_type> + constexpr explicit(_Nm != rank_dynamic()) + mdspan(data_handle_type __handle, const array<_OIndexType, _Nm>& __exts) + : _M_accessor(), _M_mapping(extents_type(__exts)), + _M_handle(std::move(__handle)) + { } + + constexpr + mdspan(data_handle_type __handle, const extents_type& __exts) + requires is_constructible_v<mapping_type, const extents_type&> + && is_default_constructible_v<accessor_type> + : _M_accessor(), _M_mapping(__exts), _M_handle(std::move(__handle)) + { } + + constexpr + mdspan(data_handle_type __handle, const mapping_type& __mapping) + requires is_default_constructible_v<accessor_type> + : _M_accessor(), _M_mapping(__mapping), _M_handle(std::move(__handle)) + { } + + constexpr + mdspan(data_handle_type __handle, const mapping_type& __mapping, + const accessor_type& __accessor) + : _M_accessor(__accessor), _M_mapping(__mapping), + _M_handle(std::move(__handle)) + { } + + template<typename _OElementType, typename _OExtents, typename _OLayout, + typename _OAccessor> + requires is_constructible_v<mapping_type, + const typename _OLayout::mapping<_OExtents>&> + && is_constructible_v<accessor_type, const _OAccessor&> + constexpr explicit(!is_convertible_v< + const typename _OLayout::mapping<_OExtents>&, mapping_type> + || !is_convertible_v<const _OAccessor&, accessor_type>) + mdspan(const mdspan<_OElementType, _OExtents, _OLayout, _OAccessor>& + __other) + : _M_accessor(__other.accessor()), _M_mapping(__other.mapping()), + _M_handle(__other.data_handle()) + { + static_assert(is_constructible_v<data_handle_type, + const typename _OAccessor::data_handle_type&>); + static_assert(is_constructible_v<extents_type, _OExtents>); + } + + constexpr mdspan& + operator=(const mdspan& __other) = default; + + constexpr mdspan& + operator=(mdspan&& __other) = default; + + template<__mdspan::__valid_index_type<index_type>... _OIndexTypes> + requires (sizeof...(_OIndexTypes) == rank()) + constexpr reference + operator[](_OIndexTypes... __indices) const + { + auto __checked_call = [this](auto... __idxs) -> index_type + { + if constexpr (sizeof...(__idxs) > 0) + __glibcxx_assert(__mdspan::__is_multi_index(extents(), + span<const index_type, sizeof...(__idxs)>({__idxs...}))); + return _M_mapping(__idxs...); + }; + + auto __index = __checked_call( + static_cast<index_type>(std::move(__indices))...); + return _M_accessor.access(_M_handle, __index); + } + + template<__mdspan::__valid_index_type<index_type> _OIndexType> + constexpr reference + operator[](span<_OIndexType, rank()> __indices) const + { + auto __call = [&]<size_t... _Counts>(index_sequence<_Counts...>) + -> reference + { return (*this)[index_type(as_const(__indices[_Counts]))...]; }; + return __call(make_index_sequence<rank()>()); + } + + template<__mdspan::__valid_index_type<index_type> _OIndexType> + constexpr reference + operator[](const array<_OIndexType, rank()>& __indices) const + { return (*this)[span<const _OIndexType, rank()>(__indices)]; } + + constexpr size_type + size() const noexcept + { + __glibcxx_assert(cmp_less_equal(_M_mapping.required_span_size(), + numeric_limits<size_t>::max())); + return size_type(__mdspan::__size(extents())); + } + + [[nodiscard]] + constexpr bool + empty() const noexcept + { + return __mdspan::__empty(extents()); + } + + friend constexpr void + swap(mdspan& __x, mdspan& __y) noexcept + { + using std::swap; + swap(__x._M_mapping, __y._M_mapping); + swap(__x._M_accessor, __y._M_accessor); + swap(__x._M_handle, __y._M_handle); + } + + constexpr const extents_type& + extents() const noexcept { return _M_mapping.extents(); } + + constexpr const data_handle_type& + data_handle() const noexcept { return _M_handle; } + + constexpr const mapping_type& + mapping() const noexcept { return _M_mapping; } + + constexpr const accessor_type& + accessor() const noexcept { return _M_accessor; } + + static constexpr bool + is_always_unique() { return mapping_type::is_always_unique(); } + + static constexpr bool + is_always_exhaustive() { return mapping_type::is_always_exhaustive(); } + + static constexpr bool + is_always_strided() { return mapping_type::is_always_strided(); } + + constexpr bool + is_unique() const { return _M_mapping.is_unique(); } + + constexpr bool + is_exhaustive() const { return _M_mapping.is_exhaustive(); } + + constexpr bool + is_strided() const { return _M_mapping. is_strided(); } + + constexpr index_type + stride(rank_type __r) const { return _M_mapping.stride(__r); } + + private: + [[no_unique_address]] accessor_type _M_accessor; + [[no_unique_address]] mapping_type _M_mapping; + [[no_unique_address]] data_handle_type _M_handle; + }; + + template<typename _CArray> + requires is_array_v<_CArray> && (rank_v<_CArray> == 1) + mdspan(_CArray&) + -> mdspan<remove_all_extents_t<_CArray>, + extents<size_t, extent_v<_CArray, 0>>>; + + template<typename _Pointer> + requires is_pointer_v<remove_reference_t<_Pointer>> + mdspan(_Pointer&&) + -> mdspan<remove_pointer_t<remove_reference_t<_Pointer>>, extents<size_t>>; + + template<typename _ElementType, typename... _Integrals> + requires (is_convertible_v<_Integrals, size_t> && ...) + && (sizeof...(_Integrals) > 0) + explicit mdspan(_ElementType*, _Integrals...) + -> mdspan<_ElementType, + extents<size_t, __detail::__maybe_static_ext<_Integrals>...>>; + + template<typename _ElementType, typename _OIndexType, size_t _Nm> + mdspan(_ElementType*, span<_OIndexType, _Nm>) + -> mdspan<_ElementType, dextents<size_t, _Nm>>; + + template<typename _ElementType, typename _OIndexType, size_t _Nm> + mdspan(_ElementType*, const array<_OIndexType, _Nm>&) + -> mdspan<_ElementType, dextents<size_t, _Nm>>; + + template<typename _ElementType, typename _IndexType, size_t... _ExtentsPack> + mdspan(_ElementType*, const extents<_IndexType, _ExtentsPack...>&) + -> mdspan<_ElementType, extents<_IndexType, _ExtentsPack...>>; + + template<typename _ElementType, typename _MappingType> + mdspan(_ElementType*, const _MappingType&) + -> mdspan<_ElementType, typename _MappingType::extents_type, + typename _MappingType::layout_type>; + + template<typename _MappingType, typename _AccessorType> + mdspan(const typename _AccessorType::data_handle_type&, const _MappingType&, + const _AccessorType&) + -> mdspan<typename _AccessorType::element_type, + typename _MappingType::extents_type, + typename _MappingType::layout_type, _AccessorType>; + _GLIBCXX_END_NAMESPACE_VERSION } #endif diff --git a/libstdc++-v3/include/std/memory b/libstdc++-v3/include/std/memory index 1da03b3..763a57e 100644 --- a/libstdc++-v3/include/std/memory +++ b/libstdc++-v3/include/std/memory @@ -121,6 +121,7 @@ #define __glibcxx_want_smart_ptr_for_overwrite #define __glibcxx_want_to_address #define __glibcxx_want_transparent_operators +#define __glibcxx_want_smart_ptr_owner_equality #include <bits/version.h> #if __cplusplus >= 201103L && __cplusplus <= 202002L && _GLIBCXX_HOSTED diff --git a/libstdc++-v3/include/std/queue b/libstdc++-v3/include/std/queue index 9052589..1b76088 100644 --- a/libstdc++-v3/include/std/queue +++ b/libstdc++-v3/include/std/queue @@ -105,7 +105,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return _M_f.format(__a.c, __fc); } private: - // Standard uses formatter<ref_view<_Container>, _CharT>. + // Standard uses formatter<ref_view<_Container>, _CharT>, but range_formatter + // provides same behavior. + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3881. Incorrect formatting of container adapters backed by std::string range_formatter<_Tp, _CharT> _M_f; }; @@ -136,7 +139,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { return _M_f.format(__a.c, __fc); } private: - // Standard uses formatter<ref_view<_Container>, _CharT>. + // Standard uses formatter<ref_view<_Container>, _CharT>, but range_formatter + // provides same behavior. + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3881. Incorrect formatting of container adapters backed by std::string range_formatter<_Tp, _CharT> _M_f; }; diff --git a/libstdc++-v3/include/std/span b/libstdc++-v3/include/std/span index 49ab910..5629a71 100644 --- a/libstdc++-v3/include/std/span +++ b/libstdc++-v3/include/std/span @@ -476,6 +476,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION }; // deduction guides + namespace __detail + { + template<typename _Tp> + concept __integral_constant_like = is_integral_v<decltype(_Tp::value)> + && !is_same_v<bool, remove_const_t<decltype(_Tp::value)>> + && convertible_to<_Tp, decltype(_Tp::value)> + && equality_comparable_with<_Tp, decltype(_Tp::value)> + && bool_constant<_Tp() == _Tp::value>::value + && bool_constant<static_cast<decltype(_Tp::value)>(_Tp()) == _Tp::value> + ::value; + + template<typename _Tp> + constexpr size_t __maybe_static_ext = dynamic_extent; + + template<__integral_constant_like _Tp> + constexpr size_t __maybe_static_ext<_Tp> = {_Tp::value}; + } template<typename _Type, size_t _ArrayExtent> span(_Type(&)[_ArrayExtent]) -> span<_Type, _ArrayExtent>; @@ -489,7 +506,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template<contiguous_iterator _Iter, typename _End> span(_Iter, _End) - -> span<remove_reference_t<iter_reference_t<_Iter>>>; + -> span<remove_reference_t<iter_reference_t<_Iter>>, + __detail::__maybe_static_ext<_End>>; template<ranges::contiguous_range _Range> span(_Range &&) |