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From: "Arsen Arsenović" <arsen@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r13-7015] libstdc++: Harmonize <version> and other headers Date: Wed, 5 Apr 2023 17:43:27 +0000 (GMT) [thread overview] Message-ID: <20230405174327.4214C3858D32@sourceware.org> (raw) https://gcc.gnu.org/g:9d63ce7c4c0a993c419dceb823e71cba5da99e24 commit r13-7015-g9d63ce7c4c0a993c419dceb823e71cba5da99e24 Author: Arsen Arsenović <arsen@aarsen.me> Date: Wed Mar 8 12:04:11 2023 +0100 libstdc++: Harmonize <version> and other headers Due to recent, large changes in libstdc++, the feature test macros declared in <version> got out of sync with the other headers that possibly declare them. libstdc++-v3/ChangeLog: * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory): Synchronize the definition block with... * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): ... this one here. Also define the 202202L value, rather than leaving it up to purely unique_ptr.h, so that the value is synchronized across all headers. (__gnu_debug::_Safe_iterator_base): Move into new conditional block. * include/std/memory (__cpp_lib_atomic_value_initialization): Define on freestanding under the same conditions as in atomic_base.h. * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops): Also define on freestanding. (__cpp_lib_to_chars): Ditto. (__cpp_lib_gcd): Ditto. (__cpp_lib_gcd_lcm): Ditto. (__cpp_lib_raw_memory_algorithms): Ditto. (__cpp_lib_array_constexpr): Ditto. (__cpp_lib_nonmember_container_access): Ditto. (__cpp_lib_clamp): Ditto. (__cpp_lib_constexpr_char_traits): Ditto. (__cpp_lib_constexpr_string): Ditto. (__cpp_lib_sample): Ditto. (__cpp_lib_lcm): Ditto. (__cpp_lib_constexpr_iterator): Ditto. (__cpp_lib_constexpr_char_traits): Ditto. (__cpp_lib_interpolate): Ditto. (__cpp_lib_constexpr_utility): Ditto. (__cpp_lib_shift): Ditto. (__cpp_lib_ranges): Ditto. (__cpp_lib_move_iterator_concept): Ditto. (__cpp_lib_constexpr_numeric): Ditto. (__cpp_lib_constexpr_functional): Ditto. (__cpp_lib_constexpr_algorithms): Ditto. (__cpp_lib_constexpr_tuple): Ditto. (__cpp_lib_constexpr_memory): Ditto. Diff: --- libstdc++-v3/include/bits/ptr_traits.h | 11 +++-- libstdc++-v3/include/bits/unique_ptr.h | 11 ++--- libstdc++-v3/include/std/memory | 6 +++ libstdc++-v3/include/std/version | 85 +++++++++++++++++++--------------- 4 files changed, 65 insertions(+), 48 deletions(-) diff --git a/libstdc++-v3/include/bits/ptr_traits.h b/libstdc++-v3/include/bits/ptr_traits.h index dc42a743c96..8a919ec1090 100644 --- a/libstdc++-v3/include/bits/ptr_traits.h +++ b/libstdc++-v3/include/bits/ptr_traits.h @@ -34,12 +34,15 @@ #include <bits/move.h> +/* Duplicate definition with unique_ptr.h. */ +#if __cplusplus > 202002L && defined(__cpp_constexpr_dynamic_alloc) +# define __cpp_lib_constexpr_memory 202202L +#elif __cplusplus > 201703L +# define __cpp_lib_constexpr_memory 201811L +#endif + #if __cplusplus > 201703L #include <concepts> -# ifndef __cpp_lib_constexpr_memory -// Defined to a newer value in bits/unique_ptr.h for C++23 -# define __cpp_lib_constexpr_memory 201811L -# endif namespace __gnu_debug { struct _Safe_iterator_base; } #endif diff --git a/libstdc++-v3/include/bits/unique_ptr.h b/libstdc++-v3/include/bits/unique_ptr.h index c8daff41865..f0c6d2383b4 100644 --- a/libstdc++-v3/include/bits/unique_ptr.h +++ b/libstdc++-v3/include/bits/unique_ptr.h @@ -43,12 +43,11 @@ # endif #endif -#if __cplusplus > 202002L && __cpp_constexpr_dynamic_alloc -# if __cpp_lib_constexpr_memory < 202202L -// Defined with older value in bits/ptr_traits.h for C++20 -# undef __cpp_lib_constexpr_memory -# define __cpp_lib_constexpr_memory 202202L -# endif +/* Duplicate definition with ptr_traits.h. */ +#if __cplusplus > 202002L && defined(__cpp_constexpr_dynamic_alloc) +# define __cpp_lib_constexpr_memory 202202L +#elif __cplusplus > 201703L +# define __cpp_lib_constexpr_memory 201811L #endif namespace std _GLIBCXX_VISIBILITY(default) diff --git a/libstdc++-v3/include/std/memory b/libstdc++-v3/include/std/memory index 341f9857730..85c36d67ee1 100644 --- a/libstdc++-v3/include/std/memory +++ b/libstdc++-v3/include/std/memory @@ -91,6 +91,12 @@ # include <bits/uses_allocator_args.h> #endif +/* As a hack, we declare __cpp_lib_atomic_value_initialization here even though + we don't include the bit that actually declares it, for consistency. */ +#if !defined(__cpp_lib_atomic_value_initialization) && __cplusplus >= 202002L +# define __cpp_lib_atomic_value_initialization 201911L +#endif + #if __cplusplus >= 201103L && __cplusplus <= 202002L && _GLIBCXX_HOSTED namespace std _GLIBCXX_VISIBILITY(default) { diff --git a/libstdc++-v3/include/std/version b/libstdc++-v3/include/std/version index a19c39c6cdd..cdd24248c57 100644 --- a/libstdc++-v3/include/std/version +++ b/libstdc++-v3/include/std/version @@ -81,18 +81,23 @@ #ifndef _GLIBCXX_DEBUG // PR libstdc++/70303 # define __cpp_lib_null_iterators 201304L #endif +#define __cpp_lib_robust_nonmodifying_seq_ops 201304L #define __cpp_lib_transformation_trait_aliases 201304L #define __cpp_lib_transparent_operators 201510L #define __cpp_lib_tuple_element_t 201402L #define __cpp_lib_tuples_by_type 201304L +#if _GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 \ + && __SIZE_WIDTH__ >= 32 +# define __cpp_lib_to_chars 201611L +#endif + #if _GLIBCXX_HOSTED # define __cpp_lib_chrono_udls 201304L # define __cpp_lib_complex_udls 201309L # define __cpp_lib_generic_associative_lookup 201304L # define __cpp_lib_make_unique 201304L # define __cpp_lib_quoted_string_io 201304L -# define __cpp_lib_robust_nonmodifying_seq_ops 201304L # ifdef _GLIBCXX_HAS_GTHREADS # define __cpp_lib_shared_timed_mutex 201402L # endif @@ -108,6 +113,9 @@ #define __cpp_lib_atomic_is_always_lock_free 201603L #define __cpp_lib_bool_constant 201505L #define __cpp_lib_byte 201603L +#define __cpp_lib_clamp 201603L +#define __cpp_lib_gcd 201606L +#define __cpp_lib_gcd_lcm 201606L #ifdef _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP # define __cpp_lib_has_unique_object_representations 201606L #endif @@ -123,12 +131,16 @@ #ifdef _GLIBCXX_HAVE_BUILTIN_LAUNDER # define __cpp_lib_launder 201606L #endif +#define __cpp_lib_lcm 201606L #define __cpp_lib_logical_traits 201510L #define __cpp_lib_make_from_tuple 201606L +#define __cpp_lib_nonmember_container_access 201411L #define __cpp_lib_not_fn 201603L #if __cplusplus == 201703L // N.B. updated value in C++20 # define __cpp_lib_optional 201606L #endif +#define __cpp_lib_raw_memory_algorithms 201606L +#define __cpp_lib_sample 201603L #define __cpp_lib_type_trait_variable_templates 201510L #define __cpp_lib_uncaught_exceptions 201411L #if !(__cpp_concepts >= 202002L && __cpp_constexpr >= 201811L) @@ -136,27 +148,23 @@ # define __cpp_lib_variant 202102L #endif #define __cpp_lib_void_t 201411L - -#if _GLIBCXX_HOSTED #if __cplusplus == 201703L // N.B. updated value in C++20 # define __cpp_lib_array_constexpr 201803L #endif -#define __cpp_lib_boyer_moore_searcher 201603L -#define __cpp_lib_chrono 201611L -#define __cpp_lib_clamp 201603L #if __cplusplus == 201703L // N.B. updated value in C++20 # if _GLIBCXX_HAVE_IS_CONSTANT_EVALUATED # define __cpp_lib_constexpr_char_traits 201611L # define __cpp_lib_constexpr_string 201611L # endif #endif + +#if _GLIBCXX_HOSTED +#define __cpp_lib_boyer_moore_searcher 201603L +#define __cpp_lib_chrono 201611L #define __cpp_lib_enable_shared_from_this 201603L #define __cpp_lib_execution 201902L // FIXME: should be 201603L #define __cpp_lib_filesystem 201703L -#define __cpp_lib_gcd 201606L -#define __cpp_lib_gcd_lcm 201606L #define __cpp_lib_hypot 201603L -#define __cpp_lib_lcm 201606L #define __cpp_lib_map_try_emplace 201411L #define __cpp_lib_math_special_functions 201603L #ifdef _GLIBCXX_HAS_GTHREADS @@ -165,20 +173,13 @@ # define __cpp_lib_memory_resource 1 #endif #define __cpp_lib_node_extract 201606L -#define __cpp_lib_nonmember_container_access 201411L #define __cpp_lib_parallel_algorithm 201603L -#define __cpp_lib_raw_memory_algorithms 201606L -#define __cpp_lib_sample 201603L #ifdef _GLIBCXX_HAS_GTHREADS # define __cpp_lib_scoped_lock 201703L # define __cpp_lib_shared_mutex 201505L #endif #define __cpp_lib_shared_ptr_weak_type 201606L #define __cpp_lib_string_view 201803L -#if _GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 \ - && __SIZE_WIDTH__ >= 32 -# define __cpp_lib_to_chars 201611L -#endif #define __cpp_lib_unordered_map_try_emplace 201411L #endif @@ -224,7 +225,9 @@ #if __cpp_lib_concepts # define __cpp_lib_make_obj_using_allocator 201811L #endif -#define __cpp_lib_optional 202106L +#if __cplusplus <= 202002L // N.B. updated value in C++23 +# define __cpp_lib_optional 202106L +#endif #define __cpp_lib_remove_cvref 201711L #if __has_builtin(__builtin_source_location) # define __cpp_lib_source_location 201907L @@ -243,9 +246,27 @@ #if __cpp_concepts >= 202002L && __cpp_constexpr >= 201811L # define __cpp_lib_variant 202106L #endif +#define __cpp_lib_constexpr_algorithms 201806L +#define __cpp_lib_constexpr_functional 201907L +#if __cplusplus <= 202002L // N.B. updated value in C++23 +# define __cpp_lib_constexpr_memory 201811L +#endif // C++20 +#define __cpp_lib_constexpr_numeric 201911L +#define __cpp_lib_constexpr_tuple 201811L +#define __cpp_lib_array_constexpr 201811L +#ifdef __cpp_lib_is_constant_evaluated +# define __cpp_lib_constexpr_char_traits 201811L +#endif +#define __cpp_lib_constexpr_iterator 201811L +#define __cpp_lib_constexpr_utility 201811L +#define __cpp_lib_interpolate 201902L +#if __cpp_lib_concepts +# define __cpp_lib_move_iterator_concept 202207L +# define __cpp_lib_ranges 202110L +#endif +#define __cpp_lib_shift 201806L #if _GLIBCXX_HOSTED -#define __cpp_lib_array_constexpr 201811L #define __cpp_lib_atomic_shared_ptr 201711L #if defined _GLIBCXX_HAS_GTHREADS || defined _GLIBCXX_HAVE_LINUX_FUTEX # define __cpp_lib_atomic_wait 201907L @@ -256,16 +277,9 @@ // #undef __cpp_lib_chrono // #define __cpp_lib_chrono 201907L // FIXME: #define __cpp_lib_execution 201902L -#define __cpp_lib_constexpr_algorithms 201806L -#ifdef __cpp_lib_is_constant_evaluated -# define __cpp_lib_constexpr_char_traits 201811L -#endif #define __cpp_lib_constexpr_complex 201711L #define __cpp_lib_constexpr_dynamic_alloc 201907L -#define __cpp_lib_constexpr_functional 201907L -#define __cpp_lib_constexpr_iterator 201811L -#define __cpp_lib_constexpr_memory 201811L -#define __cpp_lib_constexpr_numeric 201911L +#define __cpp_lib_constexpr_tuple 201811L #ifdef __cpp_lib_is_constant_evaluated # if _GLIBCXX_USE_CXX11_ABI # define __cpp_lib_constexpr_string 201907L @@ -273,13 +287,10 @@ # define __cpp_lib_constexpr_string 201811L # endif #endif -#define __cpp_lib_constexpr_tuple 201811L -#define __cpp_lib_constexpr_utility 201811L #define __cpp_lib_constexpr_vector 201907L #define __cpp_lib_erase_if 202002L #define __cpp_lib_format 202106L #define __cpp_lib_generic_unordered_lookup 201811L -#define __cpp_lib_interpolate 201902L #ifdef _GLIBCXX_HAS_GTHREADS # define __cpp_lib_jthread 201911L #endif @@ -288,15 +299,10 @@ #endif #define __cpp_lib_list_remove_return_type 201806L #define __cpp_lib_polymorphic_allocator 201902L -#if __cpp_lib_concepts -# define __cpp_lib_ranges 202110L -# define __cpp_lib_move_iterator_concept 202207L -#endif #if __cpp_lib_atomic_wait || _GLIBCXX_HAVE_POSIX_SEMAPHORE # define __cpp_lib_semaphore 201907L #endif #define __cpp_lib_shared_ptr_arrays 201707L -#define __cpp_lib_shift 201806L #define __cpp_lib_smart_ptr_for_overwrite 202002L # if _GLIBCXX_USE_CXX11_ABI // Only supported with cxx11-abi @@ -330,14 +336,17 @@ #define __cpp_lib_ranges_stride 202207L #define __cpp_lib_ranges_cartesian_product 202207L #define __cpp_lib_ranges_as_rvalue 202207L - -#if _GLIBCXX_HOSTED -#define __cpp_lib_adaptor_iterator_pair_constructor 202106L #if __cpp_constexpr_dynamic_alloc -# define __cpp_lib_constexpr_bitset 202202L +# if _GLIBCXX_HOSTED +# define __cpp_lib_constexpr_bitset 202202L +# endif # undef __cpp_lib_constexpr_memory # define __cpp_lib_constexpr_memory 202202L #endif +#define __cpp_lib_stdatomic_h 202011L + +#if _GLIBCXX_HOSTED +#define __cpp_lib_adaptor_iterator_pair_constructor 202106L #define __cpp_lib_ios_noreplace 202207L #define __cpp_lib_move_only_function 202110L #if __cpp_lib_span
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