package/dhrystone/0001-cmdline-nruns.patch

   1 let people specify the number of runs on the command line
   2
   3 Patch by Vivi Li <vivi.li@analog.com>
   4
   5 --- a/dhry_1.c
   6 +++ b/dhry_1.c
   7 @@ -66,7 +70,7 @@
   8  /* end of variables for time measurement */
   9
  10
  11 -main ()
  12 +main(int argc, char *argv[])
  13  /*****/
  14
  15    /* main program, corresponds to procedures        */
  16 @@ -101,6 +105,13 @@
  17          /* Warning: With 16-Bit processors and Number_Of_Runs > 32000,  */
  18          /* overflow may occur for this array element.                   */
  19
  20 +  Number_Of_Runs = 0;
  21 +  if ( argc == 2 ) {
  22 +      if (atoi(argv[1]) > 0) {
  23 +          Number_Of_Runs = atoi(argv[1]);
  24 +      }
  25 +  }
  26 +
  27    printf ("\n");
  28    printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n");
  29    printf ("\n");
  30 @@ -114,13 +125,17 @@
  31      printf ("Program compiled without 'register' attribute\n");
  32      printf ("\n");
  33    }
  34 -  printf ("Please give the number of runs through the benchmark: ");
  35 -  {
  36 -    int n;
  37 -    scanf ("%d", &n);
  38 -    Number_Of_Runs = n;
  39 +
  40 +  if (!Number_Of_Runs) {
  41 +      printf ("Please give the number of runs through the benchmark: ");
  42 +      fflush (stdout);
  43 +      {
  44 +          int n;
  45 +          scanf ("%d", &n);
  46 +          Number_Of_Runs = n;
  47 +      }
  48 +      printf ("\n");
  49    }
  50 -  printf ("\n");
  51
  52    printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs);
  53