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Annotation of 43BSDReno/contrib/isode-beta/psap/seq_add.c, revision 1.1

1.1     ! root        1: /* seq_add.c - add an element to a sequence */
        !             2: 
        !             3: #ifndef        lint
        !             4: static char *rcsid = "$Header: /f/osi/psap/RCS/seq_add.c,v 7.0 89/11/23 22:13:35 mrose Rel $";
        !             5: #endif
        !             6: 
        !             7: /* 
        !             8:  * $Header: /f/osi/psap/RCS/seq_add.c,v 7.0 89/11/23 22:13:35 mrose Rel $
        !             9:  *
        !            10:  *
        !            11:  * $Log:       seq_add.c,v $
        !            12:  * Revision 7.0  89/11/23  22:13:35  mrose
        !            13:  * Release 6.0
        !            14:  * 
        !            15:  */
        !            16: 
        !            17: /*
        !            18:  *                               NOTICE
        !            19:  *
        !            20:  *    Acquisition, use, and distribution of this module and related
        !            21:  *    materials are subject to the restrictions of a license agreement.
        !            22:  *    Consult the Preface in the User's Manual for the full terms of
        !            23:  *    this agreement.
        !            24:  *
        !            25:  */
        !            26: 
        !            27: 
        !            28: /* LINTLIBRARY */
        !            29: 
        !            30: #include <stdio.h>
        !            31: #include "psap.h"
        !            32: 
        !            33: /*  */
        !            34: 
        !            35: int    seq_add (pe, r, i)
        !            36: register PE    pe,
        !            37:                r;
        !            38: register int   i;
        !            39: {
        !            40:     register PE           *p,
        !            41:                    q;
        !            42: 
        !            43:     if (r == NULLPE)
        !            44:        return pe_seterr (pe, PE_ERR_NMEM, NOTOK);
        !            45: 
        !            46:     if (i < 0)
        !            47:        i = pe -> pe_cardinal;
        !            48:     for (p = &pe -> pe_cons; q = *p; p = &q -> pe_next)
        !            49:        if (q -> pe_offset == i) {
        !            50:            r -> pe_next = q -> pe_next;
        !            51:            pe_free (q);
        !            52:            break;
        !            53:        }
        !            54:        else
        !            55:            if (q -> pe_offset > i) {
        !            56:                r -> pe_next = q;
        !            57:                break;
        !            58:            }
        !            59: 
        !            60:     *p = r;
        !            61:     if ((r -> pe_offset = i) >= pe -> pe_cardinal)
        !            62:        pe -> pe_cardinal = i + 1;
        !            63: 
        !            64:     return OK;
        !            65: }

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