1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1998 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <sys/types.h> 30 31 /* 32 * This file tests for 8 bytes alignment on all allocations. 33 * 34 * cc -O -o align align.c -lmtmalloc 35 */ 36 37 #define N 100 /* big enough to hold results */ 38 39 main(int argc, char ** argv) 40 { 41 int i = 0; 42 char *bar[N]; 43 44 while (i < 20) { 45 bar[i] = malloc(1<<i); 46 if ((uintptr_t)bar[i] & 7) { 47 fprintf(stderr, "Address %p is not 8 byte aligned\n", 48 bar[i]); 49 fprintf(stderr, "Allocation size %d\n", 1<<i); 50 } 51 i++; 52 } 53 54 i = 0; 55 while (i < 20) { 56 free(bar[i]); 57 i++; 58 } 59 } 60