private static void TestNumber(double value)
{
var expected = GetBytes(value);
double result = IEEEFloat.ToDouble(expected, 0);
var actual = GetBytes(result);
AreEqual(expected, actual);
}
private static void TestNumber(float value)
{
var expected = GetBytes(value);
float result = IEEEFloat.ToFloat(expected, 0);
var actual = GetBytes(result);
AreEqual(expected, actual);
}
public void TestDoublePrecision()
{
TestNumber(0.0);
//TestNumber(-0.0);
TestNumber(4.3);
TestNumber(Math.PI);
TestNumber(double.NegativeInfinity);
TestNumber(double.PositiveInfinity);
TestNumber(double.NaN);
int start = 120; // pick val < 127
int end = 135; // pick val > 128
var buf = new byte[8];
for (int b0 = start; b0 < end; ++b0)
{
for (int b1 = start; b1 < end; ++b1)
{
for (int b2 = start; b2 < end; ++b2)
{
for (int b3 = start; b3 < end; ++b3)
{
buf[0] = (byte)b0;
buf[1] = (byte)b1;
buf[2] = (byte)b2;
buf[3] = (byte)b3;
buf[4] = (byte)b0;
buf[5] = (byte)b1;
buf[6] = (byte)b2;
buf[7] = (byte)b3;
double val = IEEEFloat.ToDouble(buf, 0);
if (!double.IsNaN(val))
{
var buf2 = GetBytes(val);
AreEqual(buf, buf2);
}
}
}
}
}
}
public void TestSinglePrecision()
{
TestNumber(0f);
//TestNumber(-0f);
TestNumber(4.3f);
TestNumber(float.NegativeInfinity);
TestNumber(float.PositiveInfinity);
TestNumber(float.NaN);
int start = 120; // pick val < 127
int end = 135; // pick val > 128
var buf = new byte[4];
for (int b0 = start; b0 < end; ++b0)
{
for (int b1 = start; b1 < end; ++b1)
{
for (int b2 = start; b2 < end; ++b2)
{
for (int b3 = start; b3 < end; ++b3)
{
buf[0] = (byte)b0;
buf[1] = (byte)b1;
buf[2] = (byte)b2;
buf[3] = (byte)b3;
float val = IEEEFloat.ToFloat(buf, 0);
if (!float.IsNaN(val))
{
var buf2 = GetBytes(val);
AreEqual(buf, buf2);
}
}
}
}
}
}