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Annotation of researchv10dc/cmd/pascal/libpc/NIL.c, revision 1.1

1.1     ! root        1: /* Copyright (c) 1979 Regents of the University of California */
        !             2: 
        !             3: static char sccsid[] = "@(#)NIL.c 1.2 6/10/81";
        !             4: 
        !             5: #include "h00vars.h"
        !             6: 
        !             7: char *
        !             8: NIL(ptr)
        !             9: 
        !            10:        char    *ptr;           /* pointer to struct */
        !            11: {
        !            12:        if (ptr > _maxptr || ptr < _minptr) {
        !            13:                ERROR("Pointer value out of legal range\n", 0);
        !            14:                return;
        !            15:        }
        !            16:        return ptr;
        !            17: }

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