模拟实现strcpy

#include<stdio.h>
#include<windows.h>
#include<assert.h>

char * my_strcpy0(char *dest, const char *src)//优化前
{
	assert(dest&&src);
	char *ret = dest;
	while (*src != '\0')
	{
		*ret = *src;
		ret++;
		src++;
	} 
	*ret = '\0';
	return ret;
}


char * my_strcpy1(char *dest,const char *src)//优化后      const 得分点
{
	assert(dest&&src);//得分点
	char *ret = dest;
	while (*ret++ = *src++);//得分点
	return ret;//得分点
}

int main()
{
	char arr1[] = "hello world";
	char arr2[] = "hehe";
	my_strcpy1(arr1, arr2);
	printf("%s",arr1);
	system("pause");
	return 0;
}