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std::copyable_function::
operator bool
From cppreference.com
<
cpp
|
utility
|
functional
|
copyable function
C++
Compiler support
Freestanding and hosted
Language
Standard library
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Named requirements
Feature test macros
(C++20)
Language support library
Concepts library
(C++20)
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(C++11)
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(C++20)
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[edit]
Utilities library
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(C++20)
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(C++11)
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(C++26)
source_location
(C++20)
Coroutine support
(C++20)
Contract support
(C++26)
Three-way comparison
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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)
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(C++20)
(C++20)
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rel_ops::operator<=
rel_ops::operator>=
Integer comparison functions
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(C++20)
(C++20)
(C++20)
cmp_not_equal
cmp_greater
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(C++20)
(C++20)
(C++20)
in_range
(C++20)
Swap
and
type operations
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(C++20)
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(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)
tuple_element
(C++11)
apply
(C++17)
make_from_tuple
(C++17)
expected
(C++23)
[edit]
Function objects
Function wrappers
function
(C++11)
move_only_function
(C++23)
copyable_function
(C++26)
function_ref
(C++26)
mem_fn
(C++11)
bad_function_call
(C++11)
Partial function application
bind_front
bind_back
(C++20)
(C++23)
bind
(C++11)
is_bind_expression
(C++11)
is_placeholder
(C++11)
_1, _2, _3, ...
(C++11)
Function invocation
invoke
invoke_r
(C++17)
(C++23)
Identity function object
identity
(C++20)
Reference wrappers