Feature Test Macro Support¶

Overview
Status

Overview ¶

This file documents the feature test macros currently supported by libc++.

Status ¶

Current Status :name: feature-status-table :widths: auto¶
Macro Name	Value
C++ 14
`__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`
C++ 17
`__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`	unimplemented
`__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`	unimplemented
`__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`	unimplemented
`__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`	`201606L`
`__cpp_lib_void_t`	`201411L`
C++ 2a
`__cpp_lib_atomic_ref`	unimplemented
`__cpp_lib_bind_front`	unimplemented
`__cpp_lib_bit_cast`	unimplemented
`__cpp_lib_char8_t`	`201811L`
`__cpp_lib_concepts`	unimplemented
`__cpp_lib_constexpr_misc`	unimplemented
`__cpp_lib_constexpr_swap_algorithms`	unimplemented
`__cpp_lib_destroying_delete`	`201806L`
`__cpp_lib_endian`	`201907L`
`__cpp_lib_erase_if`	`201811L`
`__cpp_lib_generic_unordered_lookup`	unimplemented
`__cpp_lib_interpolate`	`201902L`
`__cpp_lib_is_constant_evaluated`	`201811L`
`__cpp_lib_list_remove_return_type`	unimplemented
`__cpp_lib_ranges`	unimplemented
`__cpp_lib_three_way_comparison`	unimplemented