CSC373/406: Logical Operations in C [2011/03/27-29]

Operations for logical not, and, inclusive-or:
```
! && ||
```
Apply to any integral data type, signed or unsigned
```
char short int long
```

Operators always return 0 or 1

!1  == 0   !!1  == 1
!0  == 1   !!0  == 0
!55 == 0   !!55 ==