4.3BSD beta release manual page

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

/* @(#)strcat.c 4.1 (Berkeley) %G% */
/*
* Concatenate s2 on the end of s1.  S1's space must be large enough.
* Return s1.
*/

char *
strcat(s1, s2)
register char *s1, *s2;
{
       register char *os1;

       os1 = s1;
       while (*s1++)
               ;
       --s1;
       while (*s1++ = *s2++)
               ;
       return(os1);
}