/*

strcpy takes in two character pointers (i.e. the addresses of two
strings), and copies the second string to the location of the first.  The
function returns the address of the first string.

*/

char * strcpy(char * s1, const char * s2)
{
   int i;
   for (i = 0; s2[i] != '\0'; i++)
	s1[i] = s2[i];

   s1[i] = s2[i];	// copy the terminator
   return s1;
}


char * strcpy(char * s1, const char * s2)
{
   char* temp = s1;
   while (*s2)
	*s1++ = *s2++;

   *s1 = *s2;		// copy the terminator
   return temp;
}