public void AndNot_MixedBitsSetAndNotWithSelf_ExpectedValueAllBitsZero()
{
Vector128 <float> vector = Vector128.Create(235434f, -123f, 0, float.MaxValue);
var expected = new Vector4(0f);
vector = BitOperations.AndNot(vector, vector);
Assert.True(Helpers.AreEqual(expected, vector));
}
public void AndNot_AllBitsSetAndNotWithSelf_ExpectedValueAllBitsZero()
{
Vector128 <float> vector = Vector128.Create(-1).AsSingle();
var expected = new Vector4(0f);
vector = BitOperations.AndNot(vector, vector);
Assert.True(Helpers.AreEqual(expected, vector));
}
public void AndNot_AllBitsSetAndNotWithAllBitsSet_ExpectedValueAllBitsSet()
{
Vector128 <float> allBitsSet = Vector128.Create(-1).AsSingle();
Vector128 <float> noBitsSet = Vector128.Create(0f);
var expected = new Vector4(0f);
Vector128 <float> result = BitOperations.AndNot(allBitsSet, noBitsSet);
Assert.True(Helpers.AreEqual(expected, result));
}
public void AndNot_MixedBitsSetAndNotWithMixedBitsSet_ExpectedValueFromField()
{
float val1_1 = 0;
float val1_2 = float.MinValue;
float val1_3 = float.PositiveInfinity;
float val1_4 = 1414123f;
float val2_1 = float.NaN;
float val2_2 = -0.00000000023434f;
float val2_3 = float.NegativeInfinity;
float val2_4 = 0;
Vector128 <float> vector1 = Vector128.Create(val1_1, val1_2, val1_3, val1_4);
Vector128 <float> vector2 = Vector128.Create(val2_1, val2_2, val2_3, val2_4);
var expected = GetExpectedValue();
Vector128 <float> result = BitOperations.AndNot(vector1, vector2);
Assert.True(Helpers.AreEqual(expected, result));
Vector4 GetExpectedValue()
{
return(new Vector4(
AndNotF(val1_1, val2_1),
AndNotF(val1_2, val2_2),
AndNotF(val1_3, val2_3),
AndNotF(val1_4, val2_4)
));
}
float AndNotF(float a, float b)
{
uint andNot = ~Unsafe.As <float, uint>(ref a) & Unsafe.As <float, uint>(ref b);
return(Unsafe.As <uint, float>(ref andNot));
}
}