C语言：写一个函数模拟实现strcpy()

#include<stdio.h>
#include<assert.h>
char* my_strcpy(char* dest, const char* src) {
	assert(src);
	assert(dest);
	char* ret = dest;
	while (*src) {
		*dest++ = *src++;
	}
	*dest = *src;
	return ret;
}
int main() {
	char arr1[] = "abcdef";
	char arr2[20] = { 0 };
	my_strcpy(arr2, arr1);
	printf("%s\n", arr2);
	return 0;
}

运行结果