Write your strcat

#include <iostream>

using namespace std;

char *istrcat(char *dst, const char* src)

{

char *p = dst;

while(*p){

p ++;

}

while(*src){

*p++ = *src++;

}

*p = '\0';

return dst;

}

char * __cdecl strcat2 (char * dst, const char * src)

{

char * cp = dst;

while( *cp )

cp++; /* find end of dst */

while( *cp++ = *src++ ) ; /* Copy src to end of dst */

return( dst ); /* return dst */

}

int main(int argc, char* argv[])

{

char dst[100] = "hello ";

char *src = "world";

cout << istrcat(dst, src);

istrcat(dst, src);

return 0;

}