common/include/test-isaligned.c

   1 /* nbdkit
   2  * Copyright Red Hat
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
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   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * * Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * * Neither the name of Red Hat nor the names of its contributors may be
  16  * used to endorse or promote products derived from this software without
  17  * specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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  27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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  29  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <config.h>
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #undef NDEBUG /* Keep test strong even for nbdkit built without assertions */
  40 #include <assert.h>
  41
  42 #include "isaligned.h"
  43
  44 int
  45 main (void)
  46 {
  47   uint64_t i;
  48
  49   for (i = 1; i <= 0x80000000; i <<= 1) {
  50     assert (IS_ALIGNED (0, i));
  51     assert (IS_ALIGNED (i, i));
  52     assert (IS_ALIGNED (i*2, i));
  53     assert (IS_ALIGNED (i*3, i));
  54     assert (IS_ALIGNED (i*4, i));
  55     if (i > 1) {
  56       assert (! IS_ALIGNED (i-1, i));
  57       assert (! IS_ALIGNED (i/2, i));
  58     }
  59   }
  60
  61   exit (EXIT_SUCCESS);
  62 }