Exercises part 2

Define a wrapper record for integral values and implement Monoid so that (<+>) corresponds to (.&.).

Hint: Have a look at the functions available from interface Bits to find a value suitable as the neutral element.

Define a wrapper record for integral values and implement Monoid so that (<+>) corresponds to (.|.).

Use bitwise operations to implement a function, which tests if a given value of type Bits64 is even or not.

Convert a value of type Bits64 to a string in binary representation.

Convert a value of type Bits64 to a string in hexadecimal representation.

Hint: Use shiftR and (.&. 15) to access subsequent packages of four bits.