std::strncpy
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Déclaré dans l'en-tête <cstring>
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char *strncpy( char *dest, const char *src, std::size_t count ); |
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Des copies de la plupart des personnages
count
de la chaîne d'octets pointée par src
(y compris le caractère nul final) au tableau de caractères pointée par dest
. Original:
Copies at most
count
characters of the byte string pointed to by src
(including the terminating null character) to character array pointed to by dest
. The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Si
count
est atteint avant la src
chaîne entière a été copié, le tableau de caractères en résulte n'est pas terminée par NULL .Original:
If
count
is reached before the entire string src
was copied, the resulting character array is not null-terminated.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Si, après avoir copié le caractère NULL de fin de
src
, count
n'est pas atteint, d'autres caractères nuls sont écrites dest
jusqu'à ce que le total de caractères count
ont été écrit .Original:
If, after copying the terminating null character from
src
, count
is not reached, additional null characters are written to dest
until the total of count
characters have been written.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Si les cordes se chevauchent, le comportement est indéfini .
Original:
If the strings overlap, the behavior is undefined.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Sommaire |
[modifier] Paramètres
dest | - | pointeur vers le tableau de caractères à copier
Original: pointer to the character array to copy to The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
src | - | pointeur vers la chaîne d'octets à copier
Original: pointer to the byte string to copy from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
count | - | nombre maximum de caractères à copier
Original: maximum number of characters to copy The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[modifier] Retourne la valeur
dest
[modifier] Exemple
#include <iostream> #include <cstring> int main() { const char* src = "hi"; char dest[6] = {'a', 'b', 'c', 'd', 'e', 'f'};; std::strncpy(dest, src, 5); std::cout << "The contents of dest are: "; for (char c : dest) { if (c) { std::cout << c << ' '; } else { std::cout << "\\0" << ' '; } } std::cout << '\n'; }
Résultat :
The contents of dest are: h i \0 \0 \0 f
[modifier] Voir aussi
copie d'une chaîne à l'autre Original: copies one string to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
une copie du tampon à l'autre Original: copies one buffer to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
C documentation for strncpy
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