public unsafe void OneKLongAllBitsLit(GetNthBitOffsetDelegate variant)
{
var q = stackalloc ulong[16]
{
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
0xFFFFFFFFFFFFFFFF,
};
for (var i = 0; i < 1024; i++)
{
Assert.That(variant(q, 1024, i + 1), Is.EqualTo(i), $"i=={i}");
}
}
public unsafe void TwoKLongCheckered3(GetNthBitOffsetDelegate variant)
{
var q = stackalloc ulong[32]
{
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
0xF0F0F0F0F0F0F0F0, 0xF0F0F0F0F0F0F0F0,
};
for (var i = 0; i < 1024; i++)
{
var expected = ((i / 4 * 2) * 4) + 4 + (i % 4);
Assert.That(variant(q, 2048, i + 1), Is.EqualTo(expected), $"i=={i}");
}
}
public unsafe void Upper32BitsLit(GetNthBitOffsetDelegate variant)
{
var q = 0xFFFFFFFF00000000UL;
for (var i = 0; i < 32; i++)
{
Assert.That(variant(&q, 64, i + 1), Is.EqualTo(i + 32), $"i=={i}");
}
}
public unsafe void OneLongAllBitsLit(GetNthBitOffsetDelegate variant)
{
var q = 0xFFFFFFFFFFFFFFFFUL;
for (var i = 0; i < 64; i++)
{
Assert.That(variant(&q, 64, i + 1), Is.EqualTo(i), $"i=={i}");
}
}
public unsafe void BitGapAtEnd(GetNthBitOffsetDelegate variant)
{
var q = stackalloc ulong[16]
{
0x0FFFFFFFFFFFFFFF,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
0xF000000000000000,
};
Assert.That(variant(q, 1024, 64), Is.EqualTo(1023));
}