tests/rand-test.c

   1 #undef G_DISABLE_ASSERT
   2 #undef G_LOG_DOMAIN
   3
   4 #include <glib.h>
   5
   6 const gint32 first_numbers[] =
   7 {
   8   0x7a7a7a7a,
   9   0xfdcc2d54,
  10   0x3a279ceb,
  11   0xc4d39c33,
  12   0xf31895cd,
  13   0x46ca0afc,
  14   0x3f5484ff,
  15   0x54bc9557,
  16   0xed2c24b1,
  17   0x84062503,
  18   0x8f6404b3,
  19   0x599a94b3,
  20   0xe46d03d5,
  21   0x310beb78,
  22   0x7bee5d08,
  23   0x760d09be,
  24   0x59b6e163,
  25   0xbf6d16ec,
  26   0xcca5fb54,
  27   0x5de7259b,
  28   0x1696330c,
  29 };
  30
  31 const gint length = sizeof (first_numbers) / sizeof (first_numbers[0]);
  32
  33 int main()
  34 {
  35   guint n;
  36
  37   GRand* rand = g_rand_new_with_seed (first_numbers[0]);
  38
  39   for (n = 1; n < length; n++)
  40     g_assert (first_numbers[n] == g_rand_int (rand));
  41
  42   for (n = 1; n < 100000; n++)
  43     {
  44       gint32 i;
  45       gdouble d;
  46       gboolean b;
  47
  48       i = g_rand_int_range (rand, 8,16);
  49       g_assert (i >= 8 && i < 16);
  50
  51       i = g_random_int_range (8,16);
  52       g_assert (i >= 8 && i < 16);
  53
  54       d = g_rand_double (rand);
  55       g_assert (d >= 0 && d < 1);
  56
  57       d = g_random_double ();
  58       g_assert (d >= 0 && d < 1);
  59
  60       d = g_rand_double_range (rand, -8, 32);
  61       g_assert (d >= -8 && d < 32);
  62
  63       d = g_random_double_range (-8, 32);
  64       g_assert (d >= -8 && d < 32);
  65
  66       b = g_random_boolean ();
  67       g_assert (b == TRUE || b  == FALSE);
  68
  69       b = g_rand_boolean (rand);
  70       g_assert (b == TRUE || b  == FALSE);
  71     }
  72
  73   g_rand_free (rand);
  74
  75   return 0;
  76 }
  77