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Annotation of 41BSD/lib/libpc/NIL.c, revision 1.1.1.1

1.1       root        1: /* Copyright (c) 1979 Regents of the University of California */
                      2: 
                      3: static char sccsid[] = "@(#)NIL.c 1.1 10/29/80";
                      4: 
                      5: #include "h00vars.h"
                      6: #include "h01errs.h"
                      7: 
                      8: char *
                      9: NIL(ptr)
                     10: 
                     11:        char    *ptr;           /* pointer to struct */
                     12: {
                     13:        if (ptr > _maxptr || ptr < _minptr) {
                     14:                ERROR(ENILPTR, 0);
                     15:                return;
                     16:        }
                     17:        return ptr;
                     18: }

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