public void Test_HighestOneBit_Int64()
{
assertEquals(0x08L, BitOperation.HighestOneBit(0x0AL));
assertEquals(0x08L, BitOperation.HighestOneBit(0x0BL));
assertEquals(0x08L, BitOperation.HighestOneBit(0x0CL));
assertEquals(0x08L, BitOperation.HighestOneBit(0x0FL));
assertEquals(0x80L, BitOperation.HighestOneBit(0xFFL));
assertEquals(0x080000L, BitOperation.HighestOneBit(0x0F1234L));
assertEquals(0x800000L, BitOperation.HighestOneBit(0xFF9977L));
assertEquals(unchecked ((long)0x8000000000000000L), BitOperation.HighestOneBit(unchecked ((long)0xFFFFFFFFFFFFFFFFL)));
assertEquals(0L, BitOperation.HighestOneBit(0L));
assertEquals(1L, BitOperation.HighestOneBit(1L));
assertEquals(unchecked ((long)0x8000000000000000L), BitOperation.HighestOneBit(-1L));
}
public void Test_HighestOneBit_Int32()
{
assertEquals(0x08, BitOperation.HighestOneBit(0x0A));
assertEquals(0x08, BitOperation.HighestOneBit(0x0B));
assertEquals(0x08, BitOperation.HighestOneBit(0x0C));
assertEquals(0x08, BitOperation.HighestOneBit(0x0F));
assertEquals(0x80, BitOperation.HighestOneBit(0xFF));
assertEquals(0x080000, BitOperation.HighestOneBit(0x0F1234));
assertEquals(0x800000, BitOperation.HighestOneBit(0xFF9977));
assertEquals(unchecked ((int)0x80000000), BitOperation.HighestOneBit(unchecked ((int)0xFFFFFFFF)));
assertEquals(0, BitOperation.HighestOneBit(0));
assertEquals(1, BitOperation.HighestOneBit(1));
assertEquals(unchecked ((int)0x80000000), BitOperation.HighestOneBit(-1));
}