/* -------------------------- S M A T C H --------------------------- */
/*
* index = smatch(str1, str2)
* Compares str1 with str2. Returns the index of the first
* different char.
*/
int
smatch(s1, s2)
char *s1;
char *s2;
{
register char *p1, *p2;
p1 = s1;
p2 = s2;
while(*p1 && *p1 == *p2)
{
p1++;
p2++;
}
return(p1 - s1);
}