C# :: Checking if a bit is set or not

Question

Shhow me a very simple one line example in C# to check if a given bit is set in given byte

function signature should be like

bool IsBitSet(Byte b,byte nPos)
{
   return .....;
}

Answer 1

Here is the solution in words.

Left shift an integer with initial value 1 n times and then do an AND with the original byte. If the result is non-zero, bit is Set otherwise not. :)

Answer 2

sounds a bit like homework, but:

bool IsBitSet(byte b, int pos)
{
   return (b & (1 << pos)) != 0;
}

pos 0 is least significant bit, pos 7 is most.

Answer 3

Right shift your input n bits down and mask with 1, then test whether you have 0 or 1.

Answer 4

something like

return ((0x1 << nPos) & b) != 0