std::memset
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| Déclaré dans l'en-tête <cstring>
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| void* memset( void* dest, int ch, std::size_t count ); |
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Convertit la valeur de
ch unsigned char et le copie dans chacun des personnages count première de l'objet pointé par dest. Si l'objet n'est pas trivialement-copiable (par exemple, un scalaire, un tableau ou une structure C-compatible), le comportement est indéfini. Si count est supérieure à la taille de l'objet pointé par dest, le comportement n'est pas défini .Original:
Converts the value
ch to unsigned char and copies it into each of the first count characters of the object pointed to by dest. If the object is not trivially-copyable (e.g., scalar, array, or a C-compatible struct), the behavior is undefined. If count is greater than the size of the object pointed to by dest, 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.
Sommaire |
[modifier] Paramètres
| dest | - | pointeur vers l'objet à remplir
Original: pointer to the object to fill The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| ch | - | remplir octet
Original: fill byte The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| count | - | nombre d'octets à remplir
Original: number of bytes to fill 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() { int a[20]; std::memset(a, 0, sizeof(a)); std::cout << "a[0] = " << a[0] << '\n'; }
Résultat :
a[0] = 0
[modifier] Voir aussi
| 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) | |
| assigne une valeur à un nombre d'éléments Original: assigns a value to a number of elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique) | |
| (C++11) |
checks if a type is trivially copyable (classe générique) |
| C documentation for memset
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