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Program: test
using GLib;
class Maman.Foo : Object {
const float[] FLOAT_TESTS = {
float.EPSILON, 0.0F, 1.0F,
-float.INFINITY,
float.INFINITY,
float.NAN
};
const double[] DOUBLE_TESTS = {
double.EPSILON, 0.0, 1.0,
-double.INFINITY,
double.INFINITY,
double.NAN
};
static void main (string[] args) {
stdout.printf (
"float: range=%s...%s\n" +
" digits=%s(%s), exp=%s..%s(%s..%s)\n" +
" epsilon=%s, infinity=%s/%s, nan=%s\n",
float.MIN.to_string (),
float.MAX.to_string (),
float.MANT_DIG.to_string (),
float.DIG.to_string (),
float.MIN_EXP.to_string (),
float.MAX_EXP.to_string (),
float.MIN_10_EXP.to_string (),
float.MAX_10_EXP.to_string (),
float.EPSILON.to_string (),
float.INFINITY.to_string (),
(-float.INFINITY).to_string (),
float.NAN.to_string ());
for (int i = 0; i < 6; i++) { // XXX use foreach
float value = FLOAT_TESTS[i];
int infinity = value.is_infinity ();
stdout.printf (
"float(%g): nan=%s, finite=%s, normal=%s, infinity=%s\n",
value,
value.is_nan () ? "true" : "false",
value.is_finite () ? "true" : "false",
value.is_normal () ? "true" : "false",
infinity > 0 ? "positive" :
infinity < 0 ? "negative" : "none");
}
stdout.printf (
"double: range=%s...%s\n" +
" digits=%s(%s), exp=%s..%s(%s..%s)\n" +
" epsilon=%s, infinity=%s/%s, nan=%s\n",
double.MIN.to_string (),
double.MAX.to_string (),
double.MANT_DIG.to_string (),
double.DIG.to_string (),
double.MIN_EXP.to_string (),
double.MAX_EXP.to_string (),
double.MIN_10_EXP.to_string (),
double.MAX_10_EXP.to_string (),
double.EPSILON.to_string (),
double.INFINITY.to_string (),
(-double.INFINITY).to_string (),
double.NAN.to_string ());
for (int i = 0; i < 6; i++) { // XXX use foreach
double value = DOUBLE_TESTS[i];
int infinity = value.is_infinity ();
stdout.printf(
"double(%g): nan=%s, finite=%s, normal=%s, infinity=%s\n",
value,
value.is_nan () ? "true" : "false",
value.is_finite () ? "true" : "false",
value.is_normal () ? "true" : "false",
infinity > 0 ? "positive" :
infinity < 0 ? "negative" : "none");
}
}
}
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