diff options
Diffstat (limited to 'libstdc++-v3/include/std')
| -rw-r--r-- | libstdc++-v3/include/std/format | 4 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/mdspan | 321 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/memory | 1 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/queue | 10 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/span | 20 |
5 files changed, 342 insertions, 14 deletions
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 &&) |