### Multiplication operator *

The `*` (multiplication) operator yields the product of its operands.
The operands must have an arithmetic or enumeration type. The result is not
an lvalue. The usual arithmetic conversions on the operands are performed.

Because the multiplication operator has both associative and commutative
properties, the compiler can rearrange the operands in an expression that
contains more than one multiplication operator. For example, the expression:

sites * number * cost

can be interpreted in any of the following ways:

(sites * number) * cost
sites * (number * cost)
(cost * sites) * number