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Annotation of 43BSD/contrib/icon/lib/limit.c, revision 1.1

1.1     ! root        1: #include "../h/rt.h"
        !             2: 
        !             3: /*
        !             4:  * limit - explicit limitation initialization.
        !             5:  */
        !             6: 
        !             7: limit(nargs, arg0)
        !             8: int nargs;
        !             9: struct descrip arg0;
        !            10:    {
        !            11:    DclSave
        !            12:    long l;
        !            13: 
        !            14:    SetBound;
        !            15: 
        !            16:    /*
        !            17:     * The limit is both passed and returned in arg0.  The limit must
        !            18:     *  be an integer.  If the limit is 0, the expression being evaluated
        !            19:     *  fails.  If the limit is < 0, it is an error.  Note that the
        !            20:     *  result produced by limit is ultimately picked up by the lsusp
        !            21:     *  function.
        !            22:     */
        !            23:    switch (cvint(&arg0, &l)) {
        !            24:       case T_INTEGER:  mkint(l, &arg0); break;
        !            25: #ifdef LONGS
        !            26:       case T_LONGINT:  runerr(205, &arg0);
        !            27: #endif LONGS
        !            28:       default:         runerr(101, &arg0);
        !            29:       }
        !            30: 
        !            31:    if (l < 0)
        !            32:       runerr(205, &arg0);
        !            33:    if (l == 0)
        !            34:       fail();
        !            35:    ClearBound;
        !            36:    }

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