public void testBytes_to_double()
{
try {
PickleUtils.bytes_to_double(new byte[] {}, 0);
Assert.Fail("expected PickleException");
} catch (PickleException) {}
try {
PickleUtils.bytes_to_double(new byte[] { 0 }, 0);
Assert.Fail("expected PickleException");
} catch (PickleException) {}
Assert.AreEqual(0.0d, PickleUtils.bytes_to_double(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0 }, 0));
Assert.AreEqual(1.0d, PickleUtils.bytes_to_double(new byte[] { 0x3f, 0xf0, 0, 0, 0, 0, 0, 0 }, 0));
Assert.AreEqual(1.1d, PickleUtils.bytes_to_double(new byte[] { 0x3f, 0xf1, 0x99, 0x99, 0x99, 0x99, 0x99, 0x9a }, 0));
Assert.AreEqual(1234.5678d, PickleUtils.bytes_to_double(new byte[] { 0x40, 0x93, 0x4a, 0x45, 0x6d, 0x5c, 0xfa, 0xad }, 0));
Assert.AreEqual(2.17e123d, PickleUtils.bytes_to_double(new byte[] { 0x59, 0x8a, 0x42, 0xd1, 0xce, 0xf5, 0x3f, 0x46 }, 0));
Assert.AreEqual(1.23456789e300d, PickleUtils.bytes_to_double(new byte[] { 0x7e, 0x3d, 0x7e, 0xe8, 0xbc, 0xaf, 0x28, 0x3a }, 0));
Assert.AreEqual(double.PositiveInfinity, PickleUtils.bytes_to_double(new byte[] { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }, 0));
Assert.AreEqual(double.NegativeInfinity, PickleUtils.bytes_to_double(new byte[] { 0xff, 0xf0, 0, 0, 0, 0, 0, 0 }, 0));
try
{
PickleUtils.bytes_to_double(new byte[] { 200, 50, 25, 100 }, 0);
Assert.Fail("expected PickleException");
} catch (PickleException) {}
// test offset
Assert.AreEqual(1.23456789e300d, PickleUtils.bytes_to_double(new byte[] { 0, 0, 0, 0x7e, 0x3d, 0x7e, 0xe8, 0xbc, 0xaf, 0x28, 0x3a }, 3));
Assert.AreEqual(1.23456789e300d, PickleUtils.bytes_to_double(new byte[] { 0x7e, 0x3d, 0x7e, 0xe8, 0xbc, 0xaf, 0x28, 0x3a, 0, 0, 0 }, 0));
}
protected double[] constructDoubleArray(int machinecode, byte[] data)
{
double[] result = new double[data.Length / 8];
byte[] bigendian = new byte[8];
for (int i = 0; i < data.Length / 8; ++i)
{
if (machinecode == 16)
{
result[i] = PickleUtils.bytes_to_double(data, i * 8);
}
else
{
// 17=big endian, flip the bytes
bigendian[0] = data[7 + i * 8];
bigendian[1] = data[6 + i * 8];
bigendian[2] = data[5 + i * 8];
bigendian[3] = data[4 + i * 8];
bigendian[4] = data[3 + i * 8];
bigendian[5] = data[2 + i * 8];
bigendian[6] = data[1 + i * 8];
bigendian[7] = data[0 + i * 8];
result[i] = PickleUtils.bytes_to_double(bigendian, 0);
}
}
return(result);
}