cppreference.com
Create account
Log in
Namespaces
Page
Discussion
Variants
Views
View
Edit
History
Actions
std::
has_single_bit
From cppreference.com
<
cpp
|
numeric
C++
Compiler support
Freestanding and hosted
Language
Standard library
Standard library headers
Named requirements
Feature test macros
(C++20)
Language support library
Concepts library
(C++20)
Diagnostics library
Memory management library
Metaprogramming library
(C++11)
General utilities library
Containers library
Iterators library
Ranges library
(C++20)
Algorithms library
Strings library
Text processing library
Numerics library
Date and time library
Input/output library
Filesystem library
(C++17)
Concurrency support library
(C++11)
Execution control library
(C++26)
Technical specifications
Symbols index
External libraries
[edit]
Utilities library
Language support
Type support
(basic types, RTTI)
Library feature-test macros
(C++20)
Program utilities
Variadic functions
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)
tuple_element
(C++11)
apply
(C++17)
make_from_tuple
(C++17)
expected
(C++23)
[edit]
Bit manipulation
bit_cast
(C++20)
byteswap
(C++23)
Integral powers of
2
has_single_bit
(C++20)
bit_ceil
(C++20)
bit_floor
(C++20)
bit_width
(C++20)
Rotating
rotl
(C++20)
rotr
(C++20)
Counting
countl_zero
(C++20)
countl_one
(C++20)