tests/test-031.vala

   1 using GLib;
   2
   3 class Maman.Foo : Object {
   4         const float[] FLOAT_TESTS = {
   5                 float.EPSILON, 0.0F, 1.0F,
   6                 -float.INFINITY,
   7                 float.INFINITY,
   8                 float.NAN
   9         };
  10
  11         const double[] DOUBLE_TESTS = {
  12                 double.EPSILON, 0.0, 1.0,
  13                 -double.INFINITY,
  14                 double.INFINITY,
  15                 double.NAN
  16         };
  17
  18         static void main (string[] args) {
  19                 stdout.printf (
  20                         "float: range=%s...%s\n" +
  21                         "       digits=%s(%s), exp=%s..%s(%s..%s)\n" +
  22                         "       epsilon=%s, infinity=%s/%s, nan=%s\n",
  23
  24                         float.MIN.to_string (),
  25                         float.MAX.to_string (),
  26
  27                         float.MANT_DIG.to_string (),
  28                         float.DIG.to_string (),
  29                         float.MIN_EXP.to_string (),
  30                         float.MAX_EXP.to_string (),
  31                         float.MIN_10_EXP.to_string (),
  32                         float.MAX_10_EXP.to_string (),
  33
  34                         float.EPSILON.to_string (),
  35                         float.INFINITY.to_string (),
  36                         (-float.INFINITY).to_string (),
  37                         float.NAN.to_string ());
  38
  39                 for (int i = 0; i < 6; i++) { // XXX use foreach
  40                         float value = FLOAT_TESTS[i];
  41                         int infinity = value.is_infinity ();
  42
  43                         stdout.printf (
  44                                 "float(%g): nan=%s, finite=%s, normal=%s, infinity=%s\n",
  45
  46                                 value,
  47                                 value.is_nan () ? "true" : "false",
  48                                 value.is_finite () ? "true" : "false",
  49                                 value.is_normal () ? "true" : "false",
  50
  51                                 infinity > 0 ? "positive" :
  52                                 infinity < 0 ? "negative" : "none");
  53                 }
  54
  55                 stdout.printf (
  56                         "double: range=%s...%s\n" +
  57                         "        digits=%s(%s), exp=%s..%s(%s..%s)\n" +
  58                         "        epsilon=%s, infinity=%s/%s, nan=%s\n",
  59
  60                         double.MIN.to_string (),
  61                         double.MAX.to_string (),
  62
  63                         double.MANT_DIG.to_string (),
  64                         double.DIG.to_string (),
  65                         double.MIN_EXP.to_string (),
  66                         double.MAX_EXP.to_string (),
  67                         double.MIN_10_EXP.to_string (),
  68                         double.MAX_10_EXP.to_string (),
  69
  70                         double.EPSILON.to_string (),
  71                         double.INFINITY.to_string (),
  72                         (-double.INFINITY).to_string (),
  73                         double.NAN.to_string ());
  74
  75                 for (int i = 0; i < 6; i++) { // XXX use foreach
  76                         double value = DOUBLE_TESTS[i];
  77                         int infinity = value.is_infinity ();
  78
  79                         stdout.printf(
  80                                 "double(%g): nan=%s, finite=%s, normal=%s, infinity=%s\n",
  81
  82                                 value,
  83                                 value.is_nan () ? "true" : "false",
  84                                 value.is_finite () ? "true" : "false",
  85                                 value.is_normal () ? "true" : "false",
  86
  87                                 infinity > 0 ? "positive" :
  88                                 infinity < 0 ? "negative" : "none");
  89                 }
  90         }
  91 }