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Annotation of 43BSD/contrib/icon/rt/defstr.c, revision 1.1

1.1     ! root        1: #include "../h/rt.h"
        !             2: 
        !             3: /*
        !             4:  * defstr - if dp is null, default to def; otherwise, convert to string.
        !             5:  *  *dp gets a descriptor for the resulting string.  buf is used as
        !             6:  *  a scratch buffer for the conversion (if necessary).
        !             7:  */
        !             8: 
        !             9: defstr(dp, buf, def)
        !            10: struct descrip *dp;
        !            11: char *buf;
        !            12: struct descrip *def;
        !            13:    {
        !            14:    DeRef(*dp)
        !            15:    if (NULLDESC(*dp)) {
        !            16:       *dp = *def;
        !            17:       return 1;
        !            18:       }
        !            19:    if (cvstr(dp, buf) == NULL)
        !            20:       runerr(103, dp);
        !            21:    return 0;
        !            22:    }

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