std::memset
Da cppreference.com
 | This page has been machine-translated from the English version of the wiki using Google Translate. The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here. |
Definido no cabeçalho <cstring> | ||
void* memset(void* dest, int ch, std::size_t count ); | ||
Converte o valor para
chunsignedchar e copia-lo em cada um dos personagens count primeira do objeto apontado por dest. Se o objeto não é trivialmente-copiável (por exemplo, escalar, matriz, ou uma estrutura compatível com C), o comportamento é indefinido. Se count é maior do que o tamanho do objeto apontado por dest, o comportamento é indefinido.Original:
Converts the value
ch to unsignedchar 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.
Índice |
[editar]Parâmetros
| dest | - | ponteiro para o objeto para preencher 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 | - | encher byte 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 | - | número de bytes para preencher 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. |
[editar]Valor de retorno
dest
[editar]Exemplo
#include <iostream>#include <cstring> int main(){int a[20]; std::memset(a, 0, sizeof(a));std::cout<<"a[0] = "<< a[0]<<'\n';}
Saída:
a[0] = 0
[editar]Veja também
copia um buffer para outro 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. (função) | |
atribui um valor a um certo número de elementos 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. (modelo de função) | |
(C++11) | checks if a type is trivially copyable (modelo de classe) |
Documentação C para memset | |
