ack/lang/cem/libcc/gen/strncat.c
1987-03-31 10:45:53 +00:00

24 lines
373 B
C

/* $Header$ */
char *strncat(s1, s2, n)
register char *s1, *s2;
int n;
{
/* Append s2 to the end of s1, but no more than n characters */
char *original = s1;
if (n <= 0) return(s1);
/* Find the end of s1. */
while (*s1 != 0) s1++;
/* Now copy s2 to the end of s1. */
while (*s1++ = *s2++) {
if (--n == 0) {
*s1 = 0;
break;
}
}
return(original);
}