std::strncpy
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<tbody> </tbody>| Dclar dans l'en-tte <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 chane d'octets pointe par src (y compris le caractre nul final) au tableau de caractres pointe 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 chane entire a t copi, le tableau de caractres en rsulte n'est pas termine 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, aprs avoir copi le caractre NULL de fin de
src, count n'est pas atteint, d'autres caractres nuls sont crites dest jusqu' ce que le total de caractres count ont t crit .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 indfini .
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.
You can help to correct and verify the translation. Click here for instructions.
Paramtres
| dest | - | pointeur vers le tableau de caractres 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 chane d'octets 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 caractres 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. |
Retourne la valeur
dest
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';
}
Rsultat :
The contents of dest are: h i \0 \0 \0 f
Voir aussi
copie d'une chane 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 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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