The
Precedence of The Operators
If two non-assignment operators have the same precedence, they are
evaluated from left to right. Thus y = 3+4+5; is evaluated as y = 7+5;
or y = 12. Similarly, y = w*x/z is evaluated as y = (w*x)/z. If
operators of a mixed precedence appear in an expression, the one with
the highest precedence is performed from left to right, then the one
with the second highest precedence is performed from left to right,
and so forth. Thus z = 4/3 + 8%3 - 3; is evaluated as z = 1 + 2 -3;
which is evaluated as z = 3-3; Similarly in if( a > b && c =< d), the
expressions with the relational operators, a > b and c =< d, are
evaluated first. Then, and only then, is the && used.
In the following
table, x represents an expression. The operator with the highest
precedence (the parentheses) is listed first; the one with the lowest
(=), is listed last.
| Operator classification | Operators |
|---|
| parentheses | ( ) |
| postfix operators | [] x++ x-- |
| unary operators | ++x --x +x -x ! |
| creation or cast | new (type)x |
| multiplicative | * / % |
| additive | + - |
| relational | < > >= <= |
| equality (boolean) | = = != |
| logical AND | && |
| logical OR | || |
| assignment | = |