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
  | 
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
  | 
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
  | 
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
  | 
C++ 20  | 
__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
  | 
__cpp_lib_bitops
  | 
unimplemented  | 
__cpp_lib_bounded_array_traits
  | 
201902L
  | 
__cpp_lib_char8_t
  | 
201907L
  | 
__cpp_lib_concepts
  | 
202002L
  | 
__cpp_lib_constexpr_algorithms
  | 
201806L
  | 
__cpp_lib_constexpr_complex
  | 
unimplemented  | 
__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
  | 
unimplemented  | 
__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
  | 
202106L
  | 
__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  | 
__cpp_lib_jthread
  | 
unimplemented  | 
__cpp_lib_latch
  | 
201907L
  | 
__cpp_lib_list_remove_return_type
  | 
201806L
  | 
__cpp_lib_math_constants
  | 
201907L
  | 
__cpp_lib_polymorphic_allocator
  | 
unimplemented  | 
__cpp_lib_ranges
  | 
unimplemented  | 
__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
  | 
unimplemented  | 
__cpp_lib_span
  | 
202002L
  | 
__cpp_lib_ssize
  | 
201902L
  | 
__cpp_lib_starts_ends_with
  | 
201711L
  | 
__cpp_lib_string_view
  | 
201803L
  | 
__cpp_lib_syncbuf
  | 
unimplemented  | 
__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
  | 
C++ 2b  | 
__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_cmath
  | 
unimplemented  | 
__cpp_lib_constexpr_typeinfo
  | 
unimplemented  | 
__cpp_lib_invoke_r
  | 
unimplemented  | 
__cpp_lib_is_scoped_enum
  | 
202011L
  | 
__cpp_lib_move_only_function
  | 
unimplemented  | 
__cpp_lib_optional
  | 
202110L
  | 
__cpp_lib_out_ptr
  | 
unimplemented  | 
__cpp_lib_ranges_chunk
  | 
unimplemented  | 
__cpp_lib_ranges_chunk_by
  | 
unimplemented  | 
__cpp_lib_ranges_iota
  | 
unimplemented  | 
__cpp_lib_ranges_join_with
  | 
unimplemented  | 
__cpp_lib_ranges_slide
  | 
unimplemented  | 
__cpp_lib_ranges_starts_ends_with
  | 
unimplemented  | 
__cpp_lib_ranges_to_container
  | 
unimplemented  | 
__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_underlying
  | 
202102L
  | 
__cpp_lib_unreachable
  | 
202202L
  |