Standard library header <stdbit.h> (C23)
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Cet en-tête fait partie de la bibliothèque numérique , en particulier, il fournit des macros et des fonctions pour travailler avec l'ordre des octets et la représentation des octets et des bits des objets C.
Fonctions |
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(C23)
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compte le nombre de bits
0
consécutifs, en commençant par le bit le plus significatif
(macro fonction générique de type) |
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(C23)
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compte le nombre de bits
1
consécutifs, en commençant par le bit le plus significatif
(macro fonction générique de type) |
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(C23)
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compte le nombre de bits
0
consécutifs, en commençant à partir du bit le moins significatif
(macro fonction générique de type) |
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(C23)
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compte le nombre de bits
1
consécutifs, en commençant par le bit le moins significatif
(macro fonction générique de type) |
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(C23)
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trouve la première position du bit
0
en commençant depuis le bit le plus significatif
(macro fonction générique de type) |
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(C23)
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trouve la première position du bit
1
en partant du bit le plus significatif
(macro fonction générique de type) |
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(C23)
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trouve la première position du bit
0
en commençant par le bit le moins significatif
(macro fonction générique de type) |
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(C23)
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trouve la première position du bit
1
en partant du bit le moins significatif
(macro fonction générique de type) |
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(C23)
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compte le nombre de
0
bits dans un entier non signé
(macro fonction générique de type) |
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(C23)
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compte le nombre de
1
bits dans un entier non signé
(macro fonction générique de type) |
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(C23)
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vérifie si un nombre est une puissance entière de
2
(macro fonction générique de type) |
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(C23)
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trouve le plus petit nombre de bits nécessaire pour représenter la valeur donnée
(macro de fonction générique au type) |
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(C23)
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trouve la plus grande puissance entière de
2
inférieure ou égale à la valeur donnée
(macro fonction générique de type) |
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(C23)
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trouve la plus petite puissance entière de
2
non inférieure à la valeur donnée
(macro de fonction générique de type) |
Constantes de macro |
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indique l'ordre des octets des types scalaires
(constante macro) |
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Synopsis
#define __STDC_VERSION_STDBIT_H__ 202311L #define __STDC_ENDIAN_LITTLE__ /* défini par l'implémentation */ #define __STDC_ENDIAN_BIG__ /* défini par l'implémentation */ #define __STDC_ENDIAN_NATIVE__ /* défini par l'implémentation */ unsigned int stdc_leading_zeros_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_leading_zeros_us(unsigned short value) [[unsequenced]]; unsigned int stdc_leading_zeros_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_leading_zeros_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_leading_zeros_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_leading_zeros(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_leading_ones_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_leading_ones_us(unsigned short value) [[unsequenced]]; unsigned int stdc_leading_ones_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_leading_ones_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_leading_ones_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_leading_ones(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_trailing_zeros_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_trailing_zeros_us(unsigned short value) [[unsequenced]]; unsigned int stdc_trailing_zeros_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_trailing_zeros_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_trailing_zeros_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_trailing_zeros(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_trailing_ones_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_trailing_ones_us(unsigned short value) [[unsequenced]]; unsigned int stdc_trailing_ones_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_trailing_ones_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_trailing_ones_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_trailing_ones(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_first_leading_zero_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_first_leading_zero_us(unsigned short value) [[unsequenced]]; unsigned int stdc_first_leading_zero_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_first_leading_zero_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_first_leading_zero_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_first_leading_zero(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_first_leading_one_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_first_leading_one_us(unsigned short value) [[unsequenced]]; unsigned int stdc_first_leading_one_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_first_leading_one_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_first_leading_one_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_first_leading_one(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_first_trailing_zero_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_first_trailing_zero_us(unsigned short value) [[unsequenced]]; unsigned int stdc_first_trailing_zero_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_first_trailing_zero_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_first_trailing_zero_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_first_trailing_zero(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_first_trailing_one_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_first_trailing_one_us(unsigned short value) [[unsequenced]]; unsigned int stdc_first_trailing_one_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_first_trailing_one_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_first_trailing_one_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_first_trailing_one(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_count_zeros_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_count_zeros_us(unsigned short value) [[unsequenced]]; unsigned int stdc_count_zeros_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_count_zeros_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_count_zeros_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_count_zeros(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_count_ones_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_count_ones_us(unsigned short value) [[unsequenced]]; unsigned int stdc_count_ones_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_count_ones_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_count_ones_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_count_ones(/*generic_value_type*/ value) [[unsequenced]]; bool stdc_has_single_bit_uc(unsigned char value) [[unsequenced]]; bool stdc_has_single_bit_us(unsigned short value) [[unsequenced]]; bool stdc_has_single_bit_ui(unsigned int value) [[unsequenced]]; bool stdc_has_single_bit_ul(unsigned long int value) [[unsequenced]]; bool stdc_has_single_bit_ull(unsigned long long int value) [[unsequenced]]; bool stdc_has_single_bit(/*generic_value_type*/ value) [[unsequenced]]; unsigned int stdc_bit_width_uc(unsigned char value) [[unsequenced]]; unsigned int stdc_bit_width_us(unsigned short value) [[unsequenced]]; unsigned int stdc_bit_width_ui(unsigned int value) [[unsequenced]]; unsigned int stdc_bit_width_ul(unsigned long int value) [[unsequenced]]; unsigned int stdc_bit_width_ull(unsigned long long int value) [[unsequenced]]; /*type_de_retour_générique*/ stdc_bit_width(/*generic_value_type*/ value) [[unsequenced]]; unsigned char stdc_bit_floor_uc(unsigned char value) [[unsequenced]]; unsigned short stdc_bit_floor_us(unsigned short value) [[unsequenced]]; unsigned int stdc_bit_floor_ui(unsigned int value) [[unsequenced]]; unsigned long int stdc_bit_floor_ul(unsigned long int value) [[unsequenced]]; unsigned long long int stdc_bit_floor_ull(unsigned long long int value) [[unsequenced]]; /*generic_value_type*/ stdc_bit_floor(/*generic_value_type*/ value) [[unsequenced]]; unsigned char stdc_bit_ceil_uc(unsigned char value) [[unsequenced]]; unsigned short stdc_bit_ceil_us(unsigned short value) [[unsequenced]]; unsigned int stdc_bit_ceil_ui(unsigned int value) [[unsequenced]]; unsigned long int stdc_bit_ceil_ul(unsigned long int value) [[unsequenced]]; unsigned long long int stdc_bit_ceil_ull(unsigned long long int value) [[unsequenced]]; /*generic_value_type*/ stdc_bit_ceil(/*generic_value_type*/ value) [[unsequenced]]; unsigned char stdc_rotate_left_uc(unsigned char value, unsigned int count); unsigned short stdc_rotate_left_us(unsigned short value, unsigned int count); unsigned int stdc_rotate_left_ui(unsigned int value, unsigned int count); unsigned long stdc_rotate_left_ul(unsigned long value, unsigned int count); unsigned long long stdc_rotate_left_ull(unsigned long long value, unsigned int count); /*generic_value_type*/ stdc_rotate_left(/*generic_value_type*/ value, generic_count_type count); unsigned char stdc_rotate_right_uc(unsigned char value, unsigned int count); unsigned short stdc_rotate_right_us(unsigned short value, unsigned int count); unsigned int stdc_rotate_right_ui(unsigned int value, unsigned int count); unsigned long stdc_rotate_right_ul(unsigned long value, unsigned int count); unsigned long long stdc_rotate_right_ull(unsigned long long value, unsigned int count); /*generic_value_type*/ stdc_rotate_right(/*generic_value_type*/ value, generic_count_type count);