realloc.c
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realloc.c
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	/* realloc() function that is glibc compatible.
	Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software Foundation,
	Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */

	/* written by Jim Meyering */

	#include "defines.h"

	#undef realloc

	/* Change the size of an allocated block of memory P to N bytes,
	with error checking. If N is zero, change it to 1. If P is NULL,
	use malloc. */

	void *
	rpl_realloc (void *p, size_t n)
	{
	if (n == 0)
	{
	n = 1;

	/* In theory realloc might fail, so don't rely on it to free. */
	free (p);
	p = NULL;
	}

	if (p == NULL)
	return malloc (n);
	return realloc (p, n);
	}