6. (Other Type Traits, Investigation)

This exercise entails determining which type traits functions to use for the following functionality. Having discovered the appropriate functions then create some code with two specific types to show how it works:

a) Is a type either a signed or an unsigned arithmetic type?

b) Make a given integral type signed/unsigned.

c) Obtain the number of dimensions of an array type.

d) Remove/add a pointer from or to a given type.

e) Remove/add a reference from or to a given type.