memcpy的用法

2024-11-21 21:11:44

推荐回答（1个）

回答1：

是覆盖

函数名: memcpy
功能: 从源source中拷贝n个字节到目标destin中
用法: void *memcpy(void *destin, void *source, unsigned n);
程序例:

#include
#include
int main(void)
{
char src[] = "******************************";
char dest[] = "abcdefghijlkmnopqrstuvwxyz0123456709";
char *ptr;
printf("destination before memcpy: %s\n", dest);
ptr = memcpy(dest, src, strlen(src));
if (ptr)
printf("destination after memcpy: %s\n", dest);
else
printf("memcpy failed\n");
return 0;
}