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

Revision as of 13:05, 19 June 2021

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_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_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`	202002L	`<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_typeinfo`	202106L	`<typeinfo>`
`__cpp_lib_constexpr_utility`	201811L	`<utility>`
`__cpp_lib_constexpr_vector`	201907L	`<vector>`
`__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_filesystem`	201703L	`<filesystem>`
`__cpp_lib_format`	202106L	`<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`	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_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_memory_resource`	201603L	`<memory_resource>`
`__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`	202106L	`<optional>`
`__cpp_lib_out_ptr`	202106L	`<memory>`
`__cpp_lib_parallel_algorithm`	201603L	`<algorithm>` `<numeric>`
`__cpp_lib_polymorphic_allocator`	201902L	`<memory_resource>`
`__cpp_lib_quoted_string_io`	201304L	`<iomanip>`
`__cpp_lib_ranges`	202106L	`<algorithm>` `<functional>` `<iterator>` `<memory>` `<ranges>`
`__cpp_lib_ranges_starts_ends_with`	202106L	`<algorithm>`
`__cpp_lib_raw_memory_algorithms`	201606L	`<memory>`
`__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`	201806L	`<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_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_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_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_unwrap_ref`	201811L	`<type_traits>`
`__cpp_lib_variant`	202106L	`<variant>`
`__cpp_lib_void_t`	201411L	`<type_traits>`

@@ Line 12: / Line 12: @@
 |  {{tt|__cpp_lib_addressof_constexpr}}
 | 201603L
+| {{header|memory}}
+|-
+|  {{tt|__cpp_lib_allocate_at_least}}
+| 202106L
 | {{header|memory}}
 |-
@@ Line 17: / Line 21: @@
 | 201411L
 | {{header|memory}} {{header|scoped_allocator}} {{header|string}} {{header|deque}} {{header|forward_list}} {{header|list}} {{header|vector}} {{header|map}} {{header|set}} {{header|unordered_map}} {{header|unordered_set}}
+|-
+|  {{tt|__cpp_lib_adaptor_iterator_pair_constructor}}
+| 202106L
+| {{header|stack}} {{header|queue}}
 |-
 |  {{tt|__cpp_lib_any}}
@@ Line 165: / Line 173: @@
 | 201811L
 | {{header|tuple}}
+|-
+|  {{tt|__cpp_lib_constexpr_typeinfo}}
+| 202106L
+| {{header|typeinfo}}
 |-
 |  {{tt|__cpp_lib_constexpr_utility}}
@@ Line 207: / Line 219: @@
 |-
 |  {{tt|__cpp_lib_format}}
-| 201907L
+| 202106L
 | {{header|format}}
 |-
@@ Line 260: / Line 272: @@
 |  {{tt|__cpp_lib_invoke}}
 | 201411L
+| {{header|functional}}
+|-
+|  {{tt|__cpp_lib_invoke_r}}
+| 202106L
 | {{header|functional}}
 |-
@@ Line 367: / Line 383: @@
 |-
 |  {{tt|__cpp_lib_optional}}
-| 201606L
+| 202106L
 | {{header|optional}}
+|-
+|  {{tt|__cpp_lib_out_ptr}}
+| 202106L
+| {{header|memory}}
 |-
 |  {{tt|__cpp_lib_parallel_algorithm}}
@@ Line 383: / Line 403: @@
 |-
 |  {{tt|__cpp_lib_ranges}}
-| 201911L
+| 202106L
 | {{header|algorithm}} {{header|functional}} {{header|iterator}} {{header|memory}} {{header|ranges}}
+|-
+|  {{tt|__cpp_lib_ranges_starts_ends_with}}
+| 202106L
+| {{header|algorithm}}
 |-
 |  {{tt|__cpp_lib_raw_memory_algorithms}}
@@ Line 445: / Line 469: @@
 | 202002L
 | {{header|span}}
+|-
+|  {{tt|__cpp_lib_spanstream}}
+| 202106L
+| {{header|spanstream}}
 |-
 |  {{tt|__cpp_lib_ssize}}
@@ Line 535: / Line 563: @@
 |-
 |  {{tt|__cpp_lib_variant}}
-| 202102L
+| 202106L
 | {{header|variant}}
 |-
@@ Line 542: / Line 570: @@
 | {{header|type_traits}}
 |}
+<!-- Entries count: 140 -->
 ===See also===

Compiler support
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Language
Standard library
Standard library headers
Named requirements
Feature test macros (C++20)
Language support library
Concepts library (C++20)
Metaprogramming library (C++11)
Diagnostics library
General utilities library
Strings library
Containers library
Iterators library
Ranges library (C++20)
Algorithms library
Numerics library
Localizations library
Input/output library
Filesystem library (C++17)
Regular expressions library (C++11)
Concurrency support library (C++11)
Execution support library (C++26)
Technical specifications
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Difference between revisions of "cpp/utility/feature test"

Revision as of 13:05, 19 June 2021

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