public virtual void TestSortableFloatNaN()
{
int plusInf = NumericUtils.SingleToSortableInt32(float.PositiveInfinity);
foreach (float nan in FLOAT_NANs)
{
Assert.IsTrue(float.IsNaN(nan));
uint sortable = (uint)NumericUtils.SingleToSortableInt32(nan);
Assert.IsTrue(sortable > plusInf, "Float not sorted correctly: " + nan + ", int repr: " + sortable + ", positive inf.: " + plusInf);
}
}
public virtual void TestFloats()
{
float[] vals = new float[] { float.NegativeInfinity, -2.3E25f, -1.0E15f, -1.0f, -1.0E-1f, -1.0E-2f, -0.0f, +0.0f, 1.0E-2f, 1.0E-1f, 1.0f, 1.0E15f, 2.3E25f, float.PositiveInfinity, float.NaN };
int[] intVals = new int[vals.Length];
// check forward and back conversion
for (int i = 0; i < vals.Length; i++)
{
intVals[i] = NumericUtils.SingleToSortableInt32(vals[i]);
Assert.IsTrue(vals[i].CompareTo(NumericUtils.SortableInt32ToSingle(intVals[i])) == 0, "forward and back conversion should generate same double");
}
// check sort order (prefixVals should be ascending)
for (int i = 1; i < intVals.Length; i++)
{
Assert.IsTrue(intVals[i - 1] < intVals[i], "check sort order");
}
}