Заголовок стандартной библиотеки <stdbit.h> (C++26)

Этот заголовок изначально входил в стандартную библиотеку C (<stdbit.h>).

Этот заголовок является частью библиотеки общих утилит; в частности, он предоставляет несколько функций и шаблонов функций для доступа к отдельным битам и последовательностям битов, а также для управления ими.

Не указано, предоставляет ли <stdbit.h> какие-либо объявления в пространстве имён std.

Функции

Обзор

// all freestanding

#define __STDC_VERSION_STDBIT_H__ 202311L

#define __STDC_ENDIAN_BIG__    /* see description */
#define __STDC_ENDIAN_LITTLE__ /* see description */
#define __STDC_ENDIAN_NATIVE__ /* see description */

unsigned int stdc_leading_zeros_uc(unsigned char value);
unsigned int stdc_leading_zeros_us(unsigned short value);
unsigned int stdc_leading_zeros_ui(unsigned int value);
unsigned int stdc_leading_zeros_ul(unsigned long int value);
unsigned int stdc_leading_zeros_ull(unsigned long long int value);
template<class T> /* see description */ stdc_leading_zeros(T value);

unsigned int stdc_leading_ones_uc(unsigned char value);
unsigned int stdc_leading_ones_us(unsigned short value);
unsigned int stdc_leading_ones_ui(unsigned int value);
unsigned int stdc_leading_ones_ul(unsigned long int value);
unsigned int stdc_leading_ones_ull(unsigned long long int value);
template<class T> /* see description */ stdc_leading_ones(T value);

unsigned int stdc_trailing_zeros_uc(unsigned char value);
unsigned int stdc_trailing_zeros_us(unsigned short value);
unsigned int stdc_trailing_zeros_ui(unsigned int value);
unsigned int stdc_trailing_zeros_ul(unsigned long int value);
unsigned int stdc_trailing_zeros_ull(unsigned long long int value);
template<class T> /* see description */ stdc_trailing_zeros(T value);

unsigned int stdc_trailing_ones_uc(unsigned char value);
unsigned int stdc_trailing_ones_us(unsigned short value);
unsigned int stdc_trailing_ones_ui(unsigned int value);
unsigned int stdc_trailing_ones_ul(unsigned long int value);
unsigned int stdc_trailing_ones_ull(unsigned long long int value);
template<class T> /* see description */ stdc_trailing_ones(T value);

unsigned int stdc_first_leading_zero_uc(unsigned char value);
unsigned int stdc_first_leading_zero_us(unsigned short value);
unsigned int stdc_first_leading_zero_ui(unsigned int value);
unsigned int stdc_first_leading_zero_ul(unsigned long int value);
unsigned int stdc_first_leading_zero_ull(unsigned long long int value);
template<class T> /* see description */ stdc_first_leading_zero(T value);

unsigned int stdc_first_leading_one_uc(unsigned char value);
unsigned int stdc_first_leading_one_us(unsigned short value);
unsigned int stdc_first_leading_one_ui(unsigned int value);
unsigned int stdc_first_leading_one_ul(unsigned long int value);
unsigned int stdc_first_leading_one_ull(unsigned long long int value);
template<class T> /* see description */ stdc_first_leading_one(T value);

unsigned int stdc_first_trailing_zero_uc(unsigned char value);
unsigned int stdc_first_trailing_zero_us(unsigned short value);
unsigned int stdc_first_trailing_zero_ui(unsigned int value);
unsigned int stdc_first_trailing_zero_ul(unsigned long int value);
unsigned int stdc_first_trailing_zero_ull(unsigned long long int value);
template<class T> /* see description */ stdc_first_trailing_zero(T value);

unsigned int stdc_first_trailing_one_uc(unsigned char value);
unsigned int stdc_first_trailing_one_us(unsigned short value);
unsigned int stdc_first_trailing_one_ui(unsigned int value);
unsigned int stdc_first_trailing_one_ul(unsigned long int value);
unsigned int stdc_first_trailing_one_ull(unsigned long long int value);
template<class T> /* see description */ stdc_first_trailing_one(T value);

unsigned int stdc_count_zeros_uc(unsigned char value);
unsigned int stdc_count_zeros_us(unsigned short value);
unsigned int stdc_count_zeros_ui(unsigned int value);
unsigned int stdc_count_zeros_ul(unsigned long int value);
unsigned int stdc_count_zeros_ull(unsigned long long int value);
template<class T> /* see description */ stdc_count_zeros(T value);

unsigned int stdc_count_ones_uc(unsigned char value);
unsigned int stdc_count_ones_us(unsigned short value);
unsigned int stdc_count_ones_ui(unsigned int value);
unsigned int stdc_count_ones_ul(unsigned long int value);
unsigned int stdc_count_ones_ull(unsigned long long int value);
template<class T> /* see description */ stdc_count_ones(T value);

bool stdc_has_single_bit_uc(unsigned char value);
bool stdc_has_single_bit_us(unsigned short value);
bool stdc_has_single_bit_ui(unsigned int value);
bool stdc_has_single_bit_ul(unsigned long int value);
bool stdc_has_single_bit_ull(unsigned long long int value);
template<class T> bool stdc_has_single_bit(T value);

unsigned int stdc_bit_width_uc(unsigned char value);
unsigned int stdc_bit_width_us(unsigned short value);
unsigned int stdc_bit_width_ui(unsigned int value);
unsigned int stdc_bit_width_ul(unsigned long int value);
unsigned int stdc_bit_width_ull(unsigned long long int value);
template<class T> /* see description */ stdc_bit_width(T value);

unsigned char stdc_bit_floor_uc(unsigned char value);
unsigned short stdc_bit_floor_us(unsigned short value);
unsigned int stdc_bit_floor_ui(unsigned int value);
unsigned long int stdc_bit_floor_ul(unsigned long int value);
unsigned long long int stdc_bit_floor_ull(unsigned long long int value);
template<class T> T stdc_bit_floor(T value);

unsigned char stdc_bit_ceil_uc(unsigned char value);
unsigned short stdc_bit_ceil_us(unsigned short value);
unsigned int stdc_bit_ceil_ui(unsigned int value);
unsigned long int stdc_bit_ceil_ul(unsigned long int value);
unsigned long long int stdc_bit_ceil_ull(unsigned long long int value);
template<class T> T stdc_bit_ceil(T value);