【C语言】字符串操作函数my_strcpy

<span style="font-size:18px;">//实现字符串操作函数strcpy#include<stdio.h>#include<assert.h>char *my_strcpy(char *dest, const char *src){char *ret = dest;assert((dest != NULL) && (src != NULL));//断言if(dest == src)return dest;while(*dest++ = *src++){NULL;}return ret;}int main(){char p[] = "abcdef";char q[] = "abcd";printf("%s\n",q);return 0;}</span>