C语言：模拟实现strcat()函数

#include
#include
char* my_strcat(char* dest, const char* src) {
	assert(src);
	assert(dest);
	char* ret = dest;
	while (*dest != '\0') {
		dest++;
	}
	while (*dest++ = *src++) {
		;
	}
	return ret;
}
int main() {
	char arr1[20] = "hello ";
	my_strcat(arr1, "world");
	printf("%s\n", arr1);
	return 0;
}

运行结果