root/usr/src/lib/libmtmalloc/tests/wideload.c
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
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 */
/*
 * Copyright (c) 1998 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <limits.h>

/*
 * This file tests for large (2GB and greater) allocations.
 *
 * cc -O -o wideload wideload.c -lmtmalloc
 */

main(int argc, char ** argv)
{
        char * foo;
        char * bar;
        size_t request = LONG_MAX;

        foo = malloc(0); /* prime the pump */

        foo = (char *)sbrk(0);
        printf ("Before big malloc brk is %p request %d\n", foo, request);
        foo = malloc(request + 100);
        bar = (char *)sbrk(0);
        printf ("After big malloc brk is %p\n", bar);
}