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(C++20)
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Utilities library
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Type support
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Library feature-test macros
(C++20)
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initializer_list
(C++11)
is_constant_evaluated
(C++20)
is_within_lifetime
(C++26)
source_location
(C++20)
Coroutine support
(C++20)
Contract support
(C++26)
Three-way comparison
three_way_comparable
three_way_comparable_with
(C++20)
(C++20)
strong_ordering
(C++20)
weak_ordering
(C++20)
partial_ordering
(C++20)
common_comparison_category
(C++20)
compare_three_way_result
(C++20)
compare_three_way
(C++20)
strong_order
(C++20)
weak_order
(C++20)
partial_order
(C++20)
compare_strong_order_fallback
(C++20)
compare_weak_order_fallback
(C++20)
compare_partial_order_fallback
(C++20)
is_eq
is_lt
is_lteq
(C++20)
(C++20)
(C++20)
is_neq
is_gt
is_gteq
(C++20)
(C++20)
(C++20)
General utilities
Function objects
Bit manipulation
(C++20)
C-style bit manipulation
(C++26)
bitset
hash
(C++11)
Relational operators
(deprecated in C++20)
rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Integer comparison functions
cmp_equal
cmp_less
cmp_less_than
(C++20)
(C++20)
(C++20)
cmp_not_equal
cmp_greater
cmp_greater_than
(C++20)
(C++20)
(C++20)
in_range
(C++20)
Swap
and
type operations
swap
ranges::swap
(C++20)
exchange
(C++14)
declval
(C++11)
to_underlying
(C++23)
forward
(C++11)
forward_like
(C++23)
move
(C++11)
move_if_noexcept
(C++11)
as_const
(C++17)
Common vocabulary types
pair
tuple
(C++11)
optional
(C++17)
any
(C++17)
variant
(C++17)
tuple_size
(C++11)