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Standard library header <stdbit.h> (C++26)

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C++
Standard library headers

此头文件最初属于C标准库（ <stdbit.h> ）。

此C兼容头文件是 通用工具 库的组成部分，特别提供了若干函数模板用于访问、操作和处理单个位及位序列。标量类型的字节序（端序）可通过 __STDC_ENDIAN_NATIVE__ 设施进行检测。

是否在命名空间 std 中提供任何声明是未指定的。


本节内容尚不完整
原因：需补充函数与常量的描述符

目录

函数

常量

概要 

#define __STDC_VERSION_STDBIT_H__ 202311L
#define __STDC_ENDIAN_BIG__    /* 参见描述 */
#define __STDC_ENDIAN_LITTLE__ /* 见描述 */
#define __STDC_ENDIAN_NATIVE__ /* 见描述 */
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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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>
/* 查看描述 */ 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);

另请参阅

(C++20)
位操作 函数