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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <sys/types.h> 32 33 /* 34 * This file tests for 8 bytes alignment on all allocations. 35 * 36 * cc -O -o align align.c -lmtmalloc 37 */ 38 39 #define N 100 /* big enough to hold results */ 40 41 main(int argc, char ** argv) 42 { 43 int i = 0; 44 char *bar[N]; 45 46 while (i < 20) { 47 bar[i] = malloc(1<<i); 48 if ((uintptr_t)bar[i] & 7) { 49 fprintf(stderr, "Address %p is not 8 byte aligned\n", 50 bar[i]); 51 fprintf(stderr, "Allocation size %d\n", 1<<i); 52 } 53 i++; 54 } 55 56 i = 0; 57 while (i < 20) { 58 free(bar[i]); 59 i++; 60 } 61 } 62