view lwlib/lw_realloc.c @ 583:000381ee2d5c default tip

Guard against single operand multiplication when detecting like terms This *shouldn't* happen, but it apparently does in some pathological cases so guard against a single operand multiplication to prevent a crash.
author William Astle <lost@l-w.ca>
date Mon, 04 Nov 2024 23:48:23 -0700
parents 8e25147c2aa8
children
line wrap: on
line source

/*
lw_realloc.c

Copyright © 2010 William Astle

This file is part of LWTOOLS.

LWTOOLS 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
*/

#include <stdlib.h>

#include "lw_alloc.h"

void *lw_realloc(void *P, int S)
{
	void *r;

	if (!P)
	{
		return lw_alloc(S);
	}
	
	if (!S)
	{
		lw_free(P);
		return NULL;
	}
	
	r = realloc(P, S);
	if (!r)
	{
		abort();
	}
	return r;
}