C++ (Cpp) my_random_float2 Beispiele

Beispiel #1

Datei: test_rand2.c Projekt: jackfan108/SoftwareSystems

main (int argc, char *argv[])
{
  int i;
  float f;
  double d;
  double t0, t1;
  int iters = 1000;
  int seed = 17;

  srandom (seed);

  for (i=0; i<iters; i++) {
    f = my_random_float2();
    //d = my_random_double();
    printf ("%f\n", f);
  }
}

Beispiel #2

Datei: test_rand.c Projekt: acejang1994/SoftwareSystems

main (int argc, char *argv[])
{
  int i;
  float f;
  double t0, t1;
  int iters = 1000000000;
  int seed = 17;

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = dummy();
  }
  t1 = get_seconds();
  printf ("dummy \t %f ms\n", t1 - t0);
    

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = dummy();
  }
  t1 = get_seconds();
  printf ("dummy \t %f ms\n", t1 - t0);
   

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = dummy2();
  }
  t1 = get_seconds();
  printf ("dummy2 \t %f ms\n", t1 - t0);    
    

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = dummy2();
  }
  t1 = get_seconds();
  printf ("dummy2 \t %f ms\n", t1 - t0);    
    

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = my_random_float2();
  }
  t1 = get_seconds();
  printf ("mine \t %f ms\n", t1 - t0);
   

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = my_random_float2();
  }
  t1 = get_seconds();
  printf ("mine \t %f ms\n", t1 - t0);
    

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = random_float();
  }
  t1 = get_seconds();
  printf ("theirs \t %f ms\n", t1 - t0);
    

  srandom (seed);
  t0 = get_seconds();
  for (i=0; i<iters; i++) {
    f = random_float();
  }
  t1 = get_seconds();
  printf ("theirs \t %f ms\n", t1 - t0);    
}