tests/bench-crc.c

   1 /*
   2  * Copyright (C) 2018-2025 Free Software Foundation, Inc.
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #include <config.h>
  18
  19 #include "crc.h"
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24 #include "bench.h"
  25 #include "macros.h"
  26
  27 int
  28 main (int argc, char *argv[])
  29 {
  30   if (argc != 2)
  31     {
  32       fprintf (stderr, "Usage: %s REPETITIONS\n", argv[0]);
  33       exit (1);
  34     }
  35
  36   int repeat = atoi (argv[1]);
  37
  38   struct timings_state ts;
  39   timing_start (&ts);
  40
  41   int count;
  42   for (count = 0; count < repeat; count++)
  43     {
  44       uint32_t volatile digest =
  45         crc32 ((const char *) randomb, sizeof (randomb));
  46       ASSERT (digest == 0x5299f9d2U);
  47     }
  48
  49   timing_end (&ts);
  50   timing_output (&ts);
  51
  52   return 0;
  53 }