Standard library header <stdbit.h> (C++26)
From cppreference.net
Dieser Header war ursprünglich in der C-Standardbibliothek ( <stdbit.h> ) enthalten.
Dieser C-Kompatibilitätsheader ist Teil der allgemeinen Utility Bibliothek. Insbesondere stellt er mehrere Funktions-Templates bereit, um auf einzelne Bits und Bitsequenzen zuzugreifen, sie zu manipulieren und zu verarbeiten. Die Byte-Reihenfolge (Endianness) von skalaren Typen kann über die __STDC_ENDIAN_NATIVE__ Einrichtung überprüft werden.
Es ist nicht spezifiziert, ob <stdbit.h> Deklarationen im Namensraum std bereitstellt.
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Dieser Abschnitt ist unvollständig
Grund: Deskriptoren für Funktionen und Konstanten hinzufügen |
Funktionen |
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Übersicht
#define __STDC_VERSION_STDBIT_H__ 202311L #define __STDC_ENDIAN_BIG__ /* Beschreibung siehe */ #define __STDC_ENDIAN_LITTLE__ /* siehe Beschreibung */ #define __STDC_ENDIAN_NATIVE__ /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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> /* siehe Beschreibung */ 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);
Siehe auch
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(C++20)
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Bitmanipulationsfunktionen |