char* m_strcat(char* dst, char* src);

/*
char* m_strcat(char* dst, char* src);

@author arhaiyun

*/

#include"stdafx.h"
#include<assert.h>
#include<iostream>
using namespace std;

char* m_strcat(char* dst, const char* src)
{
	assert(dst != NULL && src != NULL);
	char* cp = dst;
	
	while(*cp != '\0')
	{
		cp++;
	}
	
	while((*cp++ = *src++) != '\0')
		;
	return dst;	
}

int main(int argc, char* argv[])
{
	char* src = " world";
	char dst[13] = "Hello";
	
	cout<<m_strcat(dst, src)<<endl;
	
	system("pause");
	return 0;
}