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Annotation of 43BSDReno/contrib/isode-beta/psap/num2prim.c, revision 1.1

1.1     ! root        1: /* num2prim.c - integer to presentation element */
        !             2: 
        !             3: #ifndef        lint
        !             4: static char *rcsid = "$Header: /f/osi/psap/RCS/num2prim.c,v 7.0 89/11/23 22:12:45 mrose Rel $";
        !             5: #endif
        !             6: 
        !             7: /* 
        !             8:  * $Header: /f/osi/psap/RCS/num2prim.c,v 7.0 89/11/23 22:12:45 mrose Rel $
        !             9:  *
        !            10:  *
        !            11:  * $Log:       num2prim.c,v $
        !            12:  * Revision 7.0  89/11/23  22:12:45  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: PE     num2prim (i, class, id)
        !            36: register integer i;
        !            37: PElementClass  class;
        !            38: PElementID     id;
        !            39: {
        !            40:     register integer mask,
        !            41:                     sign,
        !            42:                     n;
        !            43:     register PElementData dp;
        !            44:     register PE            pe;
        !            45: 
        !            46:     if ((pe = pe_alloc (class, PE_FORM_PRIM, id)) == NULLPE)
        !            47:        return NULLPE;
        !            48: 
        !            49:     sign = i >= 0 ? i : i ^ (-1);
        !            50:     mask = 0x1ff << (((n = sizeof i) - 1) * 8 - 1);
        !            51:     while (n > 1 && (sign & mask) == 0)
        !            52:        mask >>= 8, n--;
        !            53: 
        !            54:     if ((pe -> pe_prim = PEDalloc (n)) == NULLPED) {
        !            55:        pe_free (pe);
        !            56:        return NULLPE;
        !            57:     }
        !            58: 
        !            59:     for (dp = pe -> pe_prim + (pe -> pe_len = n); n-- > 0; i >>= 8)
        !            60:        *--dp = i & 0xff;
        !            61: 
        !            62:     return pe;
        !            63: }

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