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Annotation of 42BSD/lib/libc/vax/gen/strncat.c, revision 1.1

1.1     ! root        1: /* @(#)strncat.c       4.1 (Berkeley) 12/21/80 */
        !             2: /*
        !             3:  * Concatenate s2 on the end of s1.  S1's space must be large enough.
        !             4:  * At most n characters are moved.
        !             5:  * Return s1.
        !             6:  */
        !             7: 
        !             8: char *
        !             9: strncat(s1, s2, n)
        !            10: register char *s1, *s2;
        !            11: register n;
        !            12: {
        !            13:        register char *os1;
        !            14: 
        !            15:        os1 = s1;
        !            16:        while (*s1++)
        !            17:                ;
        !            18:        --s1;
        !            19:        while (*s1++ = *s2++)
        !            20:                if (--n < 0) {
        !            21:                        *--s1 = '\0';
        !            22:                        break;
        !            23:                }
        !            24:        return(os1);
        !            25: }

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