lib/realloc.c

   1 /* Work around bug on some systems where realloc (NULL, 0) fails.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 /* written by Jim Meyering */
  19
  20 #if HAVE_CONFIG_H
  21 # include <config.h>
  22 #endif
  23 #undef realloc
  24
  25 #include <sys/types.h>
  26
  27 char *malloc ();
  28 char *realloc ();
  29
  30 /* Change the size of an allocated block of memory P to N bytes,
  31    with error checking.  If N is zero, change it to 1.  If P is NULL,
  32    use malloc.  */
  33
  34 char *
  35 rpl_realloc (p, n)
  36      char *p;
  37      size_t n;
  38 {
  39   if (n == 0)
  40     n = 1;
  41   if (p == 0)
  42     return malloc (n);
  43   return realloc (p, n);
  44 }