regress/lib/libc/stdlib/posix_memalign/posix_memalign.c

   1 /*      $NetBSD: posix_memalign.c,v 1.1 2008/02/03 22:56:14 christos Exp $      */
   2
   3 /*-
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: posix_memalign.c,v 1.1 2008/02/03 22:56:14 christos Exp $");
  33
  34 #include <stdint.h>
  35 #include <stdlib.h>
  36 #include <err.h>
  37
  38 size_t size[] = {
  39         1, 2, 3, 4, 10, 100, 16384
  40 };
  41 size_t align[] = {
  42         512, 1024, 16, 32, 64, 4, 2048
  43 };
  44
  45 int
  46 main(int argc, char *argv[])
  47 {
  48         size_t i;
  49         void *p;
  50
  51         for (i = 0; i < __arraycount(size); i++) {
  52                 if (posix_memalign(&p, align[i], size[i]) != 0)
  53                         err(1, "a=%zu, s=%zu", align[i], size[i]);
  54                 if (((intptr_t)p) & (align[i] - 1))
  55                         errx(1, "p=%p a=%zu, s=%zu", p, align[i], size[i]);
  56         }
  57
  58         /* This can fail */
  59         if (posix_memalign(&p, 32768, 16) == 0)
  60                 if (((intptr_t)p) & (32768 - 1))
  61                         errx(1, "p=%p a=%zu, s=%zu", p, align[i], size[i]);
  62         return 0;
  63 }