Checking if a bit is set or not

Solution 1:

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.

Solution 2:

Based on Mario Fernandez's answer, I thought why not have it in my toolbox as a handy extension method not limited to datatype, so I hope it's OK to share it here:

/// <summary>
/// Returns whether the bit at the specified position is set.
/// </summary>
/// <typeparam name="T">Any integer type.</typeparam>
/// <param name="t">The value to check.</param>
/// <param name="pos">
/// The position of the bit to check, 0 refers to the least significant bit.
/// </param>
/// <returns>true if the specified bit is on, otherwise false.</returns>
public static bool IsBitSet<T>(this T t, int pos) where T : struct, IConvertible
{
 var value = t.ToInt64(CultureInfo.CurrentCulture);
 return (value & (1 << pos)) != 0;
}

Note: Do not use for performance critical operations, as this method always converts to long.