BSD 4 release

[unix-history] / usr / src / lib / libpc / DISPOSE.c

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)DISPOSE.c 1.1 10/29/80";

#include        "h00vars.h"
#include        "h01errs.h"

DISPOSE(var, size)
       register char   **var;  /* pointer to pointer being deallocated */
       int             size;   /* sizeof(bletch) */
{
       if (*var == 0 || *var + size > _maxptr || *var < _minptr) {
               ERROR(ENILPTR,0);
               return;
       }
       free(*var);
       if (*var == _minptr)
               _minptr += size;
       if (*var + size == _maxptr)
               _maxptr -= size;
       *var = (char *)(0);
}