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Difference between revisions of "cpp/utility/feature test"

From cppreference.com
< cpp‎ | utility
m (+15 FTMs, and some data-values were bumped, — by eel.is/c++draft 2022/08/18 update)
m (→‎Notes: (trying to) mention that FTM-values on this page are strictly the most recent ones (not initial or intermediate).)
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{{title|Library feature-test macros {{mark c++20}}}}
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{{title|Library feature-test macros {{mark since c++20}}}}
 
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<!-- Entries count: 177 -->
 
<!-- Entries count: 177 -->
 +
Total number of entries: 177.
 +
 +
===Notes===
 +
Each value in "Value" column follows the pattern: {{c|"yyyymmL"}}, where {{c|"yyyy"}} is a year, and {{c|"mm"}} is a month when the corresponding feature-set was accepted for standardization. Some values where increased since the time of their introduction, if capabilities of given feature where extended. The table above contains only the most recent values (that is, taken from the latest C++ language draft standard). A full set of values, including the initial and intermediate ones, can be found in [[cpp/feature_test#Library_features|this table]].
  
 
===See also===
 
===See also===
 
{{dsc begin}}
 
{{dsc begin}}
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{{dsc | [[cpp/feature_test|'''Feature testing''']] {{mark c++20}} | A set of preprocessor macros to test the corresponding to C++ language and library features }}
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{{dsc | [[cpp/feature_test|'''Feature testing''']] {{mark c++20}} | A set of preprocessor macros to test the corresponding to C++ language and library features}}
 
{{dsc end}}
 
{{dsc end}}
  
 
{{langlinks|es|ja|ru|zh}}
 
{{langlinks|es|ja|ru|zh}}

Revision as of 08:24, 29 August 2022

 
C++
 
Utilities library
General utilities
Relational operators (deprecated in C++20)
 

Each of following macros is defined if the header <version> or one of the corresponding headers specified in the table is included.

Macro name Value Header
__cpp_lib_addressof_constexpr 201603L <memory>
__cpp_lib_algorithm_iterator_requirements 202207L <algorithm> <numeric> <memory>
__cpp_lib_allocate_at_least 202106L <memory>
__cpp_lib_allocator_traits_is_always_equal 201411L <memory> <scoped_allocator> <string> <deque> <forward_list> <list> <vector> <map> <set> <unordered_map> <unordered_set>
__cpp_lib_adaptor_iterator_pair_constructor 202106L <stack> <queue>
__cpp_lib_any 201606L <any>
__cpp_lib_apply 201603L <tuple>
__cpp_lib_array_constexpr 201811L <iterator> <array>
__cpp_lib_as_const 201510L <utility>
__cpp_lib_associative_heterogeneous_erasure 202110L <map> <set> <unordered_map> <unordered_set>
__cpp_lib_assume_aligned 201811L <memory>
__cpp_lib_atomic_flag_test 201907L <atomic>
__cpp_lib_atomic_float 201711L <atomic>
__cpp_lib_atomic_is_always_lock_free 201603L <atomic>
__cpp_lib_atomic_lock_free_type_aliases 201907L <atomic>
__cpp_lib_atomic_ref 201806L <atomic>
__cpp_lib_atomic_shared_ptr 201711L <memory>
__cpp_lib_atomic_value_initialization 201911L <atomic> <memory>
__cpp_lib_atomic_wait 201907L <atomic>
__cpp_lib_barrier 201907L <barrier>
__cpp_lib_bind_back 202202L <functional>
__cpp_lib_bind_front 201907L <functional>
__cpp_lib_bit_cast 201806L <bit>
__cpp_lib_bitops 201907L <bit>
__cpp_lib_bool_constant 201505L <type_traits>
__cpp_lib_bounded_array_traits 201902L <type_traits>
__cpp_lib_boyer_moore_searcher 201603L <functional>
__cpp_lib_byte 201603L <cstddef>
__cpp_lib_byteswap 202110L <bit>
__cpp_lib_char8_t 201907L <atomic> <filesystem> <istream> <limits> <locale> <ostream> <string> <string_view>
__cpp_lib_chrono 201907L <chrono>
__cpp_lib_chrono_udls 201304L <chrono>
__cpp_lib_clamp 201603L <algorithm>
__cpp_lib_complex_udls 201309L <complex>
__cpp_lib_concepts 202207L <concepts> <compare>
__cpp_lib_constexpr_algorithms 201806L <algorithm>
__cpp_lib_constexpr_bitset 202202L <bitset>
__cpp_lib_constexpr_charconv 202207L <charconv>
__cpp_lib_constexpr_cmath 202202L <cmath> <cstdlib>
__cpp_lib_constexpr_complex 201711L <complex>
__cpp_lib_constexpr_dynamic_alloc 201907L <memory>
__cpp_lib_constexpr_functional 201907L <functional>
__cpp_lib_constexpr_iterator 201811L <iterator>
__cpp_lib_constexpr_memory 202202L <memory>
__cpp_lib_constexpr_numeric 201911L <numeric>
__cpp_lib_constexpr_string 201907L <string>
__cpp_lib_constexpr_string_view 201811L <string_view>
__cpp_lib_constexpr_tuple 201811L <tuple>
__cpp_lib_constexpr_typeinfo 202106L <typeinfo>
__cpp_lib_constexpr_utility 201811L <utility>
__cpp_lib_constexpr_vector 201907L <vector>
__cpp_lib_containers_ranges 202202L <vector> <list> <forward_list> <map> <set> <unordered_map> <unordered_set> <deque> <queue> <stack> <string>
__cpp_lib_coroutine 201902L <coroutine>
__cpp_lib_destroying_delete 201806L <new>
__cpp_lib_enable_shared_from_this 201603L <memory>
__cpp_lib_endian 201907L <bit>
__cpp_lib_erase_if 202002L <string> <deque> <forward_list> <list> <vector> <map> <set> <unordered_map> <unordered_set>
__cpp_lib_exchange_function 201304L <utility>
__cpp_lib_execution 201902L <execution>
__cpp_lib_expected 202202L <expected>
__cpp_lib_filesystem 201703L <filesystem>
__cpp_lib_find_last 202207L <algorithm>
__cpp_lib_flat_map 202207L <flat_map>
__cpp_lib_format 202207L <format>
__cpp_lib_forward_like 202207L <utility>
__cpp_lib_gcd_lcm 201606L <numeric>
__cpp_lib_generator 202207L <generator>
__cpp_lib_generic_associative_lookup 201304L <map> <set>
__cpp_lib_generic_unordered_lookup 201811L <unordered_map> <unordered_set>
__cpp_lib_hardware_interference_size 201703L <new>
__cpp_lib_has_unique_object_representations 201606L <type_traits>
__cpp_lib_hypot 201603L <cmath>
__cpp_lib_incomplete_container_elements 201505L <forward_list> <list> <vector>
__cpp_lib_int_pow2 202002L <bit>
__cpp_lib_integer_comparison_functions 202002L <utility>
__cpp_lib_integer_sequence 201304L <utility>
__cpp_lib_integral_constant_callable 201304L <type_traits>
__cpp_lib_interpolate 201902L <cmath> <numeric>
__cpp_lib_invoke 201411L <functional>
__cpp_lib_invoke_r 202106L <functional>
__cpp_lib_ios_noreplace 202207L <ios>
__cpp_lib_is_aggregate 201703L <type_traits>
__cpp_lib_is_constant_evaluated 201811L <type_traits>
__cpp_lib_is_final 201402L <type_traits>
__cpp_lib_is_invocable 201703L <type_traits>
__cpp_lib_is_layout_compatible 201907L <type_traits>
__cpp_lib_is_nothrow_convertible 201806L <type_traits>
__cpp_lib_is_null_pointer 201309L <type_traits>
__cpp_lib_is_pointer_interconvertible 201907L <type_traits>
__cpp_lib_is_scoped_enum 202011L <type_traits>
__cpp_lib_is_swappable 201603L <type_traits>
__cpp_lib_jthread 201911L <stop_token> <thread>
__cpp_lib_latch 201907L <latch>
__cpp_lib_launder 201606L <new>
__cpp_lib_list_remove_return_type 201806L <forward_list> <list>
__cpp_lib_logical_traits 201510L <type_traits>
__cpp_lib_make_from_tuple 201606L <tuple>
__cpp_lib_make_reverse_iterator 201402L <iterator>
__cpp_lib_make_unique 201304L <memory>
__cpp_lib_map_try_emplace 201411L <map>
__cpp_lib_math_constants 201907L <numbers>
__cpp_lib_math_special_functions 201603L <cmath>
__cpp_lib_mdspan 202207L <mdspan>
__cpp_lib_memory_resource 201603L <memory_resource>
__cpp_lib_move_iterator_concept 202207L <iterator>
__cpp_lib_move_only_function 202110L <functional>
__cpp_lib_node_extract 201606L <map> <set> <unordered_map> <unordered_set>
__cpp_lib_nonmember_container_access 201411L <array> <deque> <forward_list> <iterator> <list> <map> <regex> <set> <string> <unordered_map> <unordered_set> <vector>
__cpp_lib_not_fn 201603L <functional>
__cpp_lib_null_iterators 201304L <iterator>
__cpp_lib_optional 202110L <optional>
__cpp_lib_out_ptr 202106L <memory>
__cpp_lib_parallel_algorithm 201603L <algorithm> <numeric>
__cpp_lib_polymorphic_allocator 201902L <memory_resource>
__cpp_lib_print 202207L <print> <ostream>
__cpp_lib_quoted_string_io 201304L <iomanip>
__cpp_lib_ranges 202207L <algorithm> <functional> <iterator> <memory> <ranges>
__cpp_lib_ranges_as_const 202207L <ranges>
__cpp_lib_ranges_as_rvalue 202207L <ranges>
__cpp_lib_ranges_cartesian_product 202207L <ranges>
__cpp_lib_ranges_chunk 202202L <ranges>
__cpp_lib_ranges_chunk_by 202202L <ranges>
__cpp_lib_ranges_contains 202207L <algorithm>
__cpp_lib_ranges_fold 202207L <algorithm>
__cpp_lib_ranges_iota 202202L <numeric>
__cpp_lib_ranges_join_with 202202L <ranges>
__cpp_lib_ranges_repeat 202207L <ranges>
__cpp_lib_ranges_slide 202202L <ranges>
__cpp_lib_ranges_starts_ends_with 202106L <algorithm>
__cpp_lib_ranges_stride 202207L <ranges>
__cpp_lib_ranges_to_container 202202L <ranges>
__cpp_lib_ranges_zip 202110L <ranges> <tuple> <utility>
__cpp_lib_raw_memory_algorithms 201606L <memory>
__cpp_lib_reference_from_temporary 202202L <type_traits>
__cpp_lib_remove_cvref 201711L <type_traits>
__cpp_lib_result_of_sfinae 201210L <functional> <type_traits>
__cpp_lib_robust_nonmodifying_seq_ops 201304L <algorithm>
__cpp_lib_sample 201603L <algorithm>
__cpp_lib_scoped_lock 201703L <mutex>
__cpp_lib_semaphore 201907L <semaphore>
__cpp_lib_shared_mutex 201505L <shared_mutex>
__cpp_lib_shared_ptr_arrays 201707L <memory>
__cpp_lib_shared_ptr_weak_type 201606L <memory>
__cpp_lib_shared_timed_mutex 201402L <shared_mutex>
__cpp_lib_shift 202202L <algorithm>
__cpp_lib_smart_ptr_for_overwrite 202002L <memory>
__cpp_lib_source_location 201907L <source_location>
__cpp_lib_span 202002L <span>
__cpp_lib_spanstream 202106L <spanstream>
__cpp_lib_ssize 201902L <iterator>
__cpp_lib_stacktrace 202011L <stacktrace>
__cpp_lib_start_lifetime_as 202207L <memory>
__cpp_lib_starts_ends_with 201711L <string> <string_view>
__cpp_lib_stdatomic_h 202011L <stdatomic.h>
__cpp_lib_string_contains 202011L <string> <string_view>
__cpp_lib_string_resize_and_overwrite 202110L <string>
__cpp_lib_string_udls 201304L <string>
__cpp_lib_string_view 201803L <string> <string_view>
__cpp_lib_syncbuf 201803L <syncstream>
__cpp_lib_three_way_comparison 201907L <compare>
__cpp_lib_to_address 201711L <memory>
__cpp_lib_to_array 201907L <array>
__cpp_lib_to_chars 201611L <charconv>
__cpp_lib_to_underlying 202102L <utility>
__cpp_lib_transformation_trait_aliases 201304L <type_traits>
__cpp_lib_transparent_operators 201510L <memory> <functional>
__cpp_lib_tuple_like 202207L <utility> <tuple> <map> <unordered_map>
__cpp_lib_tuple_element_t 201402L <tuple>
__cpp_lib_tuples_by_type 201304L <utility> <tuple>
__cpp_lib_type_identity 201806L <type_traits>
__cpp_lib_type_trait_variable_templates 201510L <type_traits>
__cpp_lib_uncaught_exceptions 201411L <exception>
__cpp_lib_unordered_map_try_emplace 201411L <unordered_map>
__cpp_lib_unreachable 202202L <utility>
__cpp_lib_unwrap_ref 201811L <type_traits>
__cpp_lib_variant 202106L <variant>
__cpp_lib_void_t 201411L <type_traits>

Total number of entries: 177.

Notes

Each value in "Value" column follows the pattern: "yyyymmL", where "yyyy" is a year, and "mm" is a month when the corresponding feature-set was accepted for standardization. Some values where increased since the time of their introduction, if capabilities of given feature where extended. The table above contains only the most recent values (that is, taken from the latest C++ language draft standard). A full set of values, including the initial and intermediate ones, can be found in this table.

See also

Feature testing (C++20) A set of preprocessor macros to test the corresponding to C++ language and library features
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