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若包含头文件 <version> 或指定于表中的头文件之一，则定义对应的宏。

宏名 值 头文件
__cpp_lib_addressof_constexpr 201603L <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_any 201606L <any>
__cpp_lib_apply 201603L <tuple>
__cpp_lib_array_constexpr 201811L <iterator> <array>
__cpp_lib_as_const 201510L <utility>
__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_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_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 201907L <concepts>
__cpp_lib_constexpr_algorithms 201806L <algorithm>
__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 201811L <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_utility 201811L <utility>
__cpp_lib_constexpr_vector 201907L <vector>
__cpp_lib_destroying_delete 201806L <new>
__cpp_lib_enable_shared_from_this 201603L <memory>
__cpp_lib_endian 201907L <bit>
__cpp_lib_erase_if 201811L <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_filesystem 201703L <filesystem>
__cpp_lib_format 201907L <format>
__cpp_lib_gcd_lcm 201606L <numeric>
__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 201806L <bit>
__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_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_null_pointer 201309L <type_traits>
__cpp_lib_is_pointer_interconvertible 201907L <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_memory_resource 201603L <memory_resource>
__cpp_lib_node_extract 201606L <map> <set> <unordered_map> <unordered_set>
__cpp_lib_nonmember_container_access 201411L <iterator> <array> <deque> <forward_list> <list> <map> <regex> <set> <string> <unordered_map> <unordered_set> <vector>
__cpp_lib_not_fn 201603L <functional>
__cpp_lib_nothrow_convertible 201806L <type_traits>
__cpp_lib_null_iterators 201304L <iterator>
__cpp_lib_optional 201606L <optional>
__cpp_lib_parallel_algorithm 201603L <algorithm> <numeric>
__cpp_lib_polymorphic_allocator 201902L <memory>
__cpp_lib_quoted_string_io 201304L <iomanip>
__cpp_lib_ranges 201911L <algorithm> <functional> <iterator> <memory> <ranges>
__cpp_lib_raw_memory_algorithms 201606L <memory>
__cpp_lib_remove_cvref 201711L <type_traits>
__cpp_lib_result_of_sfinae 201210L <type_traits> <functional>
__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 201806L <algorithm>
__cpp_lib_smart_ptr_for_overwrite 201811L <memory>
__cpp_lib_source_location 201907L <source_location>
__cpp_lib_span 201902L <span>
__cpp_lib_ssize 201902L <iterator>
__cpp_lib_starts_ends_with 201711L <string> <string_view>
__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_transformation_trait_aliases 201304L <type_traits>
__cpp_lib_transparent_operators 201510L <memory> <functional>
__cpp_lib_tuple_element_t 201402L <tuple>
__cpp_lib_tuples_by_type 201304L <tuple> <utility>
__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_unwrap_ref 201811L <type_traits>
__cpp_lib_variant 201606L <variant>
__cpp_lib_void_t 201411L <type_traits>
来自“https://zh.cppreference.com/mwiki/index.php?title=cpp/utility/feature_test&oldid=64944”
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