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Implement feature test macros using a script. Summary: This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a. The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++. When a new feature test macro is added or needed, the table should be updated and the script re-run. Reviewers: mclow.lists, jfb, serge-sans-paille Reviewed By: mclow.lists Subscribers: arphaman, jfb, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D56750 llvm-svn: 351286
2019-01-16 01:37:43 +00:00
.. _FeatureTestMacroTable:
==========================
Feature Test Macro Support
==========================
.. contents::
:local:
Overview
========
This file documents the feature test macros currently supported by libc++.
.. _feature-status:
Status
======
.. table:: Current Status
[libc++][doc] Fixes FeatureTestMacroTable.html. `utils/generate_feature_test_macro_components.py` uses the wrong indentation. `:name: feature-status-table :widths: auto` is rendered as text instead of being used by Sphinx to render the table properly. This fixes the identation in the souce and updates the generated output. Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D112251
2021-10-21 20:06:30 +02:00
:name: feature-status-table
:widths: auto
[libc++] [P1612] Add missing feature-test macro __cpp_lib_endian. Thanks to Marek Kurdej for the patch. Differential Revision: https://reviews.llvm.org/D70221
2019-11-14 08:54:23 -05:00
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
=================================================== =================
Macro Name Value
=================================================== =================
[libc++] NFC: Remove trailing whitespace from the feature test macro table
2020-09-22 08:38:57 -04:00
**C++ 14**
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
---------------------------------------------------------------------
``__cpp_lib_chrono_udls`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_complex_udls`` ``201309L``
--------------------------------------------------- -----------------
``__cpp_lib_exchange_function`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_generic_associative_lookup`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_integer_sequence`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_integral_constant_callable`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_is_final`` ``201402L``
--------------------------------------------------- -----------------
``__cpp_lib_is_null_pointer`` ``201309L``
--------------------------------------------------- -----------------
``__cpp_lib_make_reverse_iterator`` ``201402L``
--------------------------------------------------- -----------------
``__cpp_lib_make_unique`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_null_iterators`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_quoted_string_io`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_result_of_sfinae`` ``201210L``
--------------------------------------------------- -----------------
``__cpp_lib_robust_nonmodifying_seq_ops`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_shared_timed_mutex`` ``201402L``
--------------------------------------------------- -----------------
``__cpp_lib_string_udls`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_transformation_trait_aliases`` ``201304L``
--------------------------------------------------- -----------------
``__cpp_lib_transparent_operators`` ``201210L``
--------------------------------------------------- -----------------
``__cpp_lib_tuple_element_t`` ``201402L``
--------------------------------------------------- -----------------
``__cpp_lib_tuples_by_type`` ``201304L``
--------------------------------------------------- -----------------
[libc++] NFC: Remove trailing whitespace from the feature test macro table
2020-09-22 08:38:57 -04:00
**C++ 17**
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
---------------------------------------------------------------------
``__cpp_lib_addressof_constexpr`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_allocator_traits_is_always_equal`` ``201411L``
--------------------------------------------------- -----------------
``__cpp_lib_any`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_apply`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_array_constexpr`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_as_const`` ``201510L``
--------------------------------------------------- -----------------
``__cpp_lib_atomic_is_always_lock_free`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_bool_constant`` ``201505L``
--------------------------------------------------- -----------------
``__cpp_lib_boyer_moore_searcher`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_byte`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_chrono`` ``201611L``
--------------------------------------------------- -----------------
``__cpp_lib_clamp`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_enable_shared_from_this`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_execution`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_filesystem`` ``201703L``
--------------------------------------------------- -----------------
``__cpp_lib_gcd_lcm`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_hardware_interference_size`` ``201703L``
--------------------------------------------------- -----------------
``__cpp_lib_has_unique_object_representations`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_hypot`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_incomplete_container_elements`` ``201505L``
--------------------------------------------------- -----------------
``__cpp_lib_invoke`` ``201411L``
--------------------------------------------------- -----------------
``__cpp_lib_is_aggregate`` ``201703L``
--------------------------------------------------- -----------------
``__cpp_lib_is_invocable`` ``201703L``
--------------------------------------------------- -----------------
``__cpp_lib_is_swappable`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_launder`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_logical_traits`` ``201510L``
--------------------------------------------------- -----------------
``__cpp_lib_make_from_tuple`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_map_try_emplace`` ``201411L``
--------------------------------------------------- -----------------
``__cpp_lib_math_special_functions`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_memory_resource`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_node_extract`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_nonmember_container_access`` ``201411L``
--------------------------------------------------- -----------------
``__cpp_lib_not_fn`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_optional`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_parallel_algorithm`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_raw_memory_algorithms`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_sample`` ``201603L``
--------------------------------------------------- -----------------
``__cpp_lib_scoped_lock`` ``201703L``
--------------------------------------------------- -----------------
``__cpp_lib_shared_mutex`` ``201505L``
--------------------------------------------------- -----------------
``__cpp_lib_shared_ptr_arrays`` ``201611L``
--------------------------------------------------- -----------------
``__cpp_lib_shared_ptr_weak_type`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_string_view`` ``201606L``
--------------------------------------------------- -----------------
``__cpp_lib_to_chars`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_transparent_operators`` ``201510L``
--------------------------------------------------- -----------------
``__cpp_lib_type_trait_variable_templates`` ``201510L``
--------------------------------------------------- -----------------
``__cpp_lib_uncaught_exceptions`` ``201411L``
--------------------------------------------------- -----------------
``__cpp_lib_unordered_map_try_emplace`` ``201411L``
--------------------------------------------------- -----------------
``__cpp_lib_variant`` ``202102L``
--------------------------------------------------- -----------------
``__cpp_lib_void_t`` ``201411L``
--------------------------------------------------- -----------------
[libc++] Use c++20 instead of c++2a consistently. * The only exception is that the flag -std=c++2a is still used not to break compatibility with older compilers (clang <= 9, gcc <= 9). * Bump _LIBCPP_STD_VER for C++20 to 20 and use 21 for the future standard (C++2b). That's a preparation step to add c++2b support to libc++. Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D93383
2021-01-07 12:29:04 +01:00
**C++ 20**
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
---------------------------------------------------------------------
``__cpp_lib_array_constexpr`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_assume_aligned`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_atomic_flag_test`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_atomic_float`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_atomic_lock_free_type_aliases`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_atomic_ref`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_atomic_shared_ptr`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_atomic_value_initialization`` ``201911L``
--------------------------------------------------- -----------------
``__cpp_lib_atomic_wait`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_barrier`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_bind_front`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_bit_cast`` ``201806L``
--------------------------------------------------- -----------------
[libc++] Marks __cpp_lib_bitops as implemented. This FTM was introduced in P0553R4 Bit operations Which has been implemented since libc++ 9. This was noticed while working on D153192. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153225
2023-06-18 12:35:44 +02:00
``__cpp_lib_bitops`` ``201907L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_bounded_array_traits`` ``201902L``
--------------------------------------------------- -----------------
``__cpp_lib_char8_t`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_concepts`` ``202002L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_algorithms`` ``201806L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_complex`` ``201711L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_dynamic_alloc`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_functional`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_iterator`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_memory`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_numeric`` ``201911L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_string`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_string_view`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_tuple`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_utility`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_vector`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_coroutine`` ``201902L``
--------------------------------------------------- -----------------
``__cpp_lib_destroying_delete`` ``201806L``
--------------------------------------------------- -----------------
``__cpp_lib_endian`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_erase_if`` ``202002L``
--------------------------------------------------- -----------------
``__cpp_lib_execution`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_format`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][format] Fixes formatting code units as integers. (#73396) This paper was voted in as a DR, so it's retroactively enabled back to C++20; the C++ version that introduced std::format. Implements: - P2909R4 Fix formatting of code units as integers (Dude, where’s my ``char``?)
2023-11-29 17:55:09 +01:00
``__cpp_lib_format_uchar`` ``202311L``
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_generic_unordered_lookup`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_int_pow2`` ``202002L``
--------------------------------------------------- -----------------
``__cpp_lib_integer_comparison_functions`` ``202002L``
--------------------------------------------------- -----------------
``__cpp_lib_interpolate`` ``201902L``
--------------------------------------------------- -----------------
``__cpp_lib_is_constant_evaluated`` ``201811L``
--------------------------------------------------- -----------------
``__cpp_lib_is_layout_compatible`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_is_nothrow_convertible`` ``201806L``
--------------------------------------------------- -----------------
``__cpp_lib_is_pointer_interconvertible`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Implement `std::condition_variable_any::wait[_for/until]` overloads that take `stop_token` - This is section 32.6.4 of P0660R10 - https://eel.is/c++draft/thread.condvarany.intwait Differential Revision: https://reviews.llvm.org/D153441
2023-06-21 17:40:07 +01:00
``__cpp_lib_jthread`` ``201911L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_latch`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_list_remove_return_type`` ``201806L``
--------------------------------------------------- -----------------
``__cpp_lib_math_constants`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_move_iterator_concept`` ``202207L``
--------------------------------------------------- -----------------
``__cpp_lib_polymorphic_allocator`` ``201902L``
--------------------------------------------------- -----------------
[libc++][ranges] Implement P2494R2 (Relaxing range adaptors to allow for move only types) Implement P2494R2 `Relaxing range adaptors to allow for move only types` https://open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2494r2.html#wording-ftm According to the words in P2494R2, I haven't add new test for `drop_while_view`, `take_while_view` and `filter_view`, because these views has the requirement that the predicate is an `indirect_unary_predicate`, which requires that the predicate is `copy_constructible`, so they still can't accept move only types as predicate. ``` [P2483R0] also suggests future work to relax the requirements on the predicate types stored by standard views. This paper does not perform this relaxation, as the copy constructibility requirement is enshrined in the indirect callable concepts ([indirectcallable.indirectinvocable]). Thus, while this paper modifies the views that currently use copyable-box for user provided predicates, it only does so to apply the rename of the exposition-only type to movable-box; it does not change any of the constraints on those views. It does, however, relax the requirements on invocables accepted by the transform family of views, because those are not constrained using the indirect callable concepts. ``` Reviewed By: #libc, var-const Differential Revision: https://reviews.llvm.org/D151629
2023-06-25 08:14:55 +08:00
``__cpp_lib_ranges`` ``202207L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_remove_cvref`` ``201711L``
--------------------------------------------------- -----------------
``__cpp_lib_semaphore`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_shared_ptr_arrays`` ``201707L``
--------------------------------------------------- -----------------
``__cpp_lib_shift`` ``201806L``
--------------------------------------------------- -----------------
``__cpp_lib_smart_ptr_for_overwrite`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_source_location`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_span`` ``202002L``
--------------------------------------------------- -----------------
``__cpp_lib_ssize`` ``201902L``
--------------------------------------------------- -----------------
``__cpp_lib_starts_ends_with`` ``201711L``
--------------------------------------------------- -----------------
``__cpp_lib_string_view`` ``201803L``
--------------------------------------------------- -----------------
Implement syncstream (p0053) This patch implements `std::basic_syncbuf` and `std::basic_osyncstream` as specified in paper p0053r7. ~~For ease of reviewing I am submitting this patch before submitting a patch for `std::basic_osyncstream`. ~~ ~~Please note, this patch is not 100% complete. I plan on adding more tests (see comments), specifically I plan on adding tests for multithreading and synchronization.~~ Edit: I decided that it would be far easier for me to keep track of this and make changes that affect both `std::basic_syncbuf` and `std::basic_osyncstream` if both were in one patch. The patch was originally written by @zoecarver Implements - P0053R7 - C++ Synchronized Buffered Ostream - LWG-3127 basic_osyncstream::rdbuf needs a const_cast - LWG-3334 basic_osyncstream move assignment and destruction calls basic_syncbuf::emit() twice - LWG-3570 basic_osyncstream::emit should be an unformatted output function - LWG-3867 Should std::basic_osyncstream's move assignment operator be noexcept? Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D67086
2023-09-05 20:10:38 +02:00
``__cpp_lib_syncbuf`` ``201803L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_three_way_comparison`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_to_address`` ``201711L``
--------------------------------------------------- -----------------
``__cpp_lib_to_array`` ``201907L``
--------------------------------------------------- -----------------
``__cpp_lib_type_identity`` ``201806L``
--------------------------------------------------- -----------------
``__cpp_lib_unwrap_ref`` ``201811L``
--------------------------------------------------- -----------------
[libc++] Updates C++2b to C++23. During the ISO C++ Committee meeting plenary session the C++23 Standard has been voted as technical complete. This updates the reference to c++2b to c++23 and updates the __cplusplus macro. Note since we use clang-tidy 16 a small work-around is needed. Clang knows -std=c++23 but clang-tidy not so for now force the lit compiler flag to use -std=c++2b instead of -std=c++23. Reviewed By: #libc, philnik, jloser, ldionne Differential Revision: https://reviews.llvm.org/D150795
2023-05-17 17:54:53 +02:00
**C++ 23**
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
---------------------------------------------------------------------
``__cpp_lib_adaptor_iterator_pair_constructor`` ``202106L``
--------------------------------------------------- -----------------
``__cpp_lib_allocate_at_least`` ``202106L``
--------------------------------------------------- -----------------
``__cpp_lib_associative_heterogeneous_erasure`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_bind_back`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_byteswap`` ``202110L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_bitset`` ``202207L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_charconv`` ``202207L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_cmath`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_memory`` ``202202L``
--------------------------------------------------- -----------------
``__cpp_lib_constexpr_typeinfo`` ``202106L``
--------------------------------------------------- -----------------
``__cpp_lib_expected`` ``202211L``
--------------------------------------------------- -----------------
``__cpp_lib_format_ranges`` ``202207L``
--------------------------------------------------- -----------------
``__cpp_lib_formatters`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_forward_like`` ``202207L``
--------------------------------------------------- -----------------
``__cpp_lib_invoke_r`` ``202106L``
--------------------------------------------------- -----------------
[libc++] Implement P2467R1: Support exclusive mode for fstreams This patch brings std::ios_base::noreplace from P2467R1 to libc++. This requires compiling the shared library in C++23 mode since otherwise fstream::open(...) doesn't know about the new flag. Differential Revision: https://reviews.llvm.org/D137640 Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
2023-09-18 16:32:02 -04:00
``__cpp_lib_ios_noreplace`` ``202207L``
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_is_scoped_enum`` ``202011L``
--------------------------------------------------- -----------------
[libc++] mdspan - implement layout_stride (#69650) This implements layout_stride for C++23 and with that completes the implementation of the C++23 mdspan header. The feature test macro is added, and the status pages updated. Co-authored-by: Damien L-G <dalg24@gmail.com> Differential Revision: https://reviews.llvm.org/D157171
2023-10-20 08:13:52 -06:00
``__cpp_lib_mdspan`` ``202207L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_move_only_function`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_optional`` ``202110L``
--------------------------------------------------- -----------------
``__cpp_lib_out_ptr`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][print] Adds ostream overloads. (#73262) Finishes implementation of - P2093R14 Formatted output - P2539R4 Should the output of std::print to a terminal be synchronized with the underlying stream? Differential Revision: https://reviews.llvm.org/D156609
2023-12-19 19:32:17 +01:00
``__cpp_lib_print`` ``202207L``
[libc++][print] Adds FILE functions. Drive-by fix to make sure the __retarget_buffer works correctly whan using a hint of 1. This was discovered in one of the new tests. Drive-by fixes __retarget_buffer when initialized with size 1. Implements parts of - P2093R14 Formatted output - P2539R4 Should the output of std::print to a terminal be synchronized with the underlying stream? Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D150044
2023-04-21 08:09:06 +02:00
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_ranges_as_const`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_ranges_as_rvalue`` ``202207L``
--------------------------------------------------- -----------------
``__cpp_lib_ranges_chunk`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][ranges] Implement P2443R1: `views::chunk_by` This patch implements https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2443r1.html (`views::chunk_by`). Reviewed By: #libc, var-const Differential Revision: https://reviews.llvm.org/D144767
2023-09-05 16:09:53 -07:00
``__cpp_lib_ranges_chunk_by`` ``202202L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_ranges_iota`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_ranges_join_with`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][ranges] Implement P2474R2(`views::repeat`). - Implement https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2474r2.html - Implement LWG3875(https://cplusplus.github.io/LWG/issue3875). Depends on D151629 Reviewed By: #libc, Mordante, philnik, var-const Differential Revision: https://reviews.llvm.org/D141699
2023-07-20 20:00:10 +08:00
``__cpp_lib_ranges_repeat`` ``202207L``
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_ranges_slide`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_ranges_starts_ends_with`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][ranges] Implement `ranges::to`. Differential Revision: https://reviews.llvm.org/D142335
2023-07-14 20:54:38 -07:00
``__cpp_lib_ranges_to_container`` ``202202L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_ranges_zip`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_reference_from_temporary`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_spanstream`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_stacktrace`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_stdatomic_h`` ``202011L``
--------------------------------------------------- -----------------
``__cpp_lib_string_contains`` ``202011L``
--------------------------------------------------- -----------------
``__cpp_lib_string_resize_and_overwrite`` ``202110L``
--------------------------------------------------- -----------------
``__cpp_lib_to_string`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_to_underlying`` ``202102L``
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_tuple_like`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_unreachable`` ``202202L``
--------------------------------------------------- -----------------
[libc++] Adds C++26 support. Clang has been updated to support C++26, this adds the same support for libc++. At the moment C++23 and C++26 are identical. During the next plenary in June the first C++26 papers will be voted on. Note like Clang this patch uses C++26 is the internal part and C++2c in the user visible part. Depends on D150795 Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D151026
2023-05-20 12:38:57 +02:00
**C++ 26**
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
---------------------------------------------------------------------
``__cpp_lib_associative_heterogeneous_insertion`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_bind_back`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_bind_front`` ``202306L``
--------------------------------------------------- -----------------
[libc++] Adds string_view constructor overload Implements - P2697R1 Interfacing bitset with string_view Depends on D153192 Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D153201
2023-06-17 18:06:55 +02:00
``__cpp_lib_bitset`` ``202306L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_copyable_function`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_debugging`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_algorithm`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_array`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_cstring`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_expected`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_mdspan`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_optional`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_string_view`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_freestanding_variant`` *unimplemented*
--------------------------------------------------- -----------------
Reapply "[libc++][streams] P1759R6: Native handles and file streams" (#77190) Fixes build on Windows in C++26 mode. Reverted in: https://github.com/llvm/llvm-project/commit/40c07b559aa6ab4bac074c943967d3207bc07ae0 Original PR: https://github.com/llvm/llvm-project/pull/76632 --------- Co-authored-by: Zingam <zingam@outlook.com>
2024-01-07 18:01:03 +02:00
``__cpp_lib_fstream_native_handle`` ``202306L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_function_ref`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_hazard_pointer`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_linalg`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_out_ptr`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] "Implements" new SI prefixis. Like yocto, zepto, zetta, and yotta. The new prefixes quecto, ronto, ronna, and quetta can't be implemented in a intmax_t. So their implementation does nothing. Implements - P2734R0 Adding the new SI prefixes Depends on D153192 Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153200
2023-06-17 15:50:50 +02:00
``__cpp_lib_ratio`` ``202306L``
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
--------------------------------------------------- -----------------
``__cpp_lib_rcu`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_saturation_arithmetic`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_smart_ptr_owner_equality`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][span] P2821R5: `span.at()` (#74994) - Implements: [P2821R5: span.at()](https://wg21.link/P2821R5) (https://eel.is/c++draft/views.contiguous#views.span) - Cleaned up `span.operator[]` test --------- Co-authored-by: Zingam <zingam@outlook.com>
2024-01-05 11:41:22 +02:00
``__cpp_lib_span_at`` ``202311L``
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_span_initializer_list`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_sstream_from_string_view`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_submdspan`` *unimplemented*
--------------------------------------------------- -----------------
``__cpp_lib_text_encoding`` *unimplemented*
--------------------------------------------------- -----------------
[libc++][charconv] Adds operator bool. Implements - P2497R0 Testing for success or failure of <charconv> functions Depends on D153192 Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D153199
2023-06-17 13:19:58 +02:00
``__cpp_lib_to_chars`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after the Kona meeting. (#72421) This updates: - The status tables - Feature test macros (including previously missing ones) - New headers for modules
2023-11-16 10:17:19 +01:00
``__cpp_lib_tuple_like`` *unimplemented*
--------------------------------------------------- -----------------
[libc++] Update status after Varna meeting. This updates: - The status tables - Feature test macros - New headers for modules The latter avoids forgetting about modules when implementing the feature in a new header. Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D153192
2023-06-17 12:00:23 +02:00
``__cpp_lib_within_lifetime`` *unimplemented*
=================================================== =================
Implement feature test macros using a script. Summary: This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a. The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++. When a new feature test macro is added or needed, the table should be updated and the script re-run. Reviewers: mclow.lists, jfb, serge-sans-paille Reviewed By: mclow.lists Subscribers: arphaman, jfb, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D56750 llvm-svn: 351286
2019-01-16 01:37:43 +00:00
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