From cppreference.com
This header was originally in the C standard library (
).
This header is part of the
library, in particular, it provides several functions and function templates to access and manipulate both individual bits and bit sequences.
It is unspecified whether <stdbit.h> provides any declarations in namespace std.
Functions
Synopsis
// 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 */unsignedintstdc_leading_zeros_uc(unsignedcharvalue);unsignedintstdc_leading_zeros_us(unsignedshortvalue);unsignedintstdc_leading_zeros_ui(unsignedintvalue);unsignedintstdc_leading_zeros_ul(unsignedlongintvalue);unsignedintstdc_leading_zeros_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_leading_zeros(Tvalue);unsignedintstdc_leading_ones_uc(unsignedcharvalue);unsignedintstdc_leading_ones_us(unsignedshortvalue);unsignedintstdc_leading_ones_ui(unsignedintvalue);unsignedintstdc_leading_ones_ul(unsignedlongintvalue);unsignedintstdc_leading_ones_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_leading_ones(Tvalue);unsignedintstdc_trailing_zeros_uc(unsignedcharvalue);unsignedintstdc_trailing_zeros_us(unsignedshortvalue);unsignedintstdc_trailing_zeros_ui(unsignedintvalue);unsignedintstdc_trailing_zeros_ul(unsignedlongintvalue);unsignedintstdc_trailing_zeros_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_trailing_zeros(Tvalue);unsignedintstdc_trailing_ones_uc(unsignedcharvalue);unsignedintstdc_trailing_ones_us(unsignedshortvalue);unsignedintstdc_trailing_ones_ui(unsignedintvalue);unsignedintstdc_trailing_ones_ul(unsignedlongintvalue);unsignedintstdc_trailing_ones_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_trailing_ones(Tvalue);unsignedintstdc_first_leading_zero_uc(unsignedcharvalue);unsignedintstdc_first_leading_zero_us(unsignedshortvalue);unsignedintstdc_first_leading_zero_ui(unsignedintvalue);unsignedintstdc_first_leading_zero_ul(unsignedlongintvalue);unsignedintstdc_first_leading_zero_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_first_leading_zero(Tvalue);unsignedintstdc_first_leading_one_uc(unsignedcharvalue);unsignedintstdc_first_leading_one_us(unsignedshortvalue);unsignedintstdc_first_leading_one_ui(unsignedintvalue);unsignedintstdc_first_leading_one_ul(unsignedlongintvalue);unsignedintstdc_first_leading_one_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_first_leading_one(Tvalue);unsignedintstdc_first_trailing_zero_uc(unsignedcharvalue);unsignedintstdc_first_trailing_zero_us(unsignedshortvalue);unsignedintstdc_first_trailing_zero_ui(unsignedintvalue);unsignedintstdc_first_trailing_zero_ul(unsignedlongintvalue);unsignedintstdc_first_trailing_zero_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_first_trailing_zero(Tvalue);unsignedintstdc_first_trailing_one_uc(unsignedcharvalue);unsignedintstdc_first_trailing_one_us(unsignedshortvalue);unsignedintstdc_first_trailing_one_ui(unsignedintvalue);unsignedintstdc_first_trailing_one_ul(unsignedlongintvalue);unsignedintstdc_first_trailing_one_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_first_trailing_one(Tvalue);unsignedintstdc_count_zeros_uc(unsignedcharvalue);unsignedintstdc_count_zeros_us(unsignedshortvalue);unsignedintstdc_count_zeros_ui(unsignedintvalue);unsignedintstdc_count_zeros_ul(unsignedlongintvalue);unsignedintstdc_count_zeros_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_count_zeros(Tvalue);unsignedintstdc_count_ones_uc(unsignedcharvalue);unsignedintstdc_count_ones_us(unsignedshortvalue);unsignedintstdc_count_ones_ui(unsignedintvalue);unsignedintstdc_count_ones_ul(unsignedlongintvalue);unsignedintstdc_count_ones_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_count_ones(Tvalue);boolstdc_has_single_bit_uc(unsignedcharvalue);boolstdc_has_single_bit_us(unsignedshortvalue);boolstdc_has_single_bit_ui(unsignedintvalue);boolstdc_has_single_bit_ul(unsignedlongintvalue);boolstdc_has_single_bit_ull(unsignedlonglongintvalue);template<classT>boolstdc_has_single_bit(Tvalue);unsignedintstdc_bit_width_uc(unsignedcharvalue);unsignedintstdc_bit_width_us(unsignedshortvalue);unsignedintstdc_bit_width_ui(unsignedintvalue);unsignedintstdc_bit_width_ul(unsignedlongintvalue);unsignedintstdc_bit_width_ull(unsignedlonglongintvalue);template<classT>/* see description */stdc_bit_width(Tvalue);unsignedcharstdc_bit_floor_uc(unsignedcharvalue);unsignedshortstdc_bit_floor_us(unsignedshortvalue);unsignedintstdc_bit_floor_ui(unsignedintvalue);unsignedlongintstdc_bit_floor_ul(unsignedlongintvalue);unsignedlonglongintstdc_bit_floor_ull(unsignedlonglongintvalue);template<classT>Tstdc_bit_floor(Tvalue);unsignedcharstdc_bit_ceil_uc(unsignedcharvalue);unsignedshortstdc_bit_ceil_us(unsignedshortvalue);unsignedintstdc_bit_ceil_ui(unsignedintvalue);unsignedlongintstdc_bit_ceil_ul(unsignedlongintvalue);unsignedlonglongintstdc_bit_ceil_ull(unsignedlonglongintvalue);template<classT>Tstdc_bit_ceil(Tvalue);