It is important to understand that operators have a precedence, but it is not essential to memorize the precedence.
Precedence is the order in which a program performs the operations in a formula. If one operator has precedence over another operator, it is evaluated first.
Higher precedence operators “bind tighter” than lower precedence operators; thus, higher precedence operators are evaluated first. Table B.1 lists the C++ operators by precedence.
Table B.1. Operator Precedence
Rank
Name
Operator
1
Scope resolution
::
2
Member selection, subscripting, function calls, postfix increment and decrement
. ->
()
++ --
3
Prefix increment and decrement, complement, and, not, unary minus and plus, address of and dereference, new, new[], delete, delete[], casting, size of, sizeof()
