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[unix-history] / usr / src / lib / libc / string / strncmp.c

#ifndef lint
static char sccsid[] = "@(#)strncmp.c   5.1 (Berkeley) %G%";
#endif not lint

/*
* Compare strings (at most n bytes):  s1>s2: >0  s1==s2: 0  s1<s2: <0
*/

strncmp(s1, s2, n)
register char *s1, *s2;
register n;
{

       while (--n >= 0 && *s1 == *s2++)
               if (*s1++ == '\0')
                       return(0);
       return(n<0 ? 0 : *s1 - *--s2);
}