nTwo other operators that are useful are the increment and decrement operators (++ and --).
nRemember these operators can be used in both the prefix and postfix form, and have very different meanings.
nIn the prefix form, the
residual value is the post incremented or
post decremented value.
nIn the postfix form, the residual value is the pre incremented or pre
decremented value.
nThese are unary
operators, so they should be overloaded
as members.