[C++] string.h 헤더파일의 strcat함수 구현하기

  

#include<stdio.h>
#include<stdlib.h>
char* strcat(char *c, char *m);
void main()
{
	char *c=(char*)malloc(50);
	char *m=(char*)malloc(50);
	scanf("%s",c);
	scanf("%s",m);
	printf("%s\n",strcat(c,m));
}
char* strcat(char *c, char *m)
{
	char *re=c;
	while(*c!='\0')
	{
		c++;
	}
	while(*m!='\0')
	{
		*c++ = *m++;
	}
	*c='\0';
	return re;
	
}