debug/repeat.c

   1 // SPDX-License-Identifier: 0BSD
   2
   3 ///////////////////////////////////////////////////////////////////////////////
   4 //
   5 /// \file       repeat.c
   6 /// \brief      Repeats given string given times
   7 ///
   8 /// This program can be useful when debugging run-length encoder in
   9 /// the Subblock filter, especially the condition when repeat count
  10 /// doesn't fit into 28-bit integer.
  11 //
  12 //  Author:     Lasse Collin
  13 //
  14 ///////////////////////////////////////////////////////////////////////////////
  15
  16 #include "sysdefs.h"
  17 #include <stdio.h>
  18
  19
  20 int
  21 main(int argc, char **argv)
  22 {
  23         if (argc != 3) {
  24                 fprintf(stderr, "Usage: %s COUNT STRING\n", argv[0]);
  25                 exit(1);
  26         }
  27
  28         unsigned long long count = strtoull(argv[1], NULL, 10);
  29         const size_t size = strlen(argv[2]);
  30
  31         while (count-- != 0)
  32                 fwrite(argv[2], 1, size, stdout);
  33
  34         return !!(ferror(stdout) || fclose(stdout));
  35 }