C operator precedence, from highest to lowest:

     +---------------------------+-----------------+
     | DESCRIPTION               | REPRESENTED BY  |
+----+---------------------------+-----------------+
|  0 | Parenthesis               | () []           |
+----+---------------------------+-----------------+
|  1 | Structure Access          | . ->            |
+----+---------------------------+-----------------+
|  2 | Unary                     | ! ~ ++ -- - * & |
+----+---------------------------+-----------------+
|  3 | Multiply, Divide, Modulus | * / %           |
+----+---------------------------+-----------------+
|  4 | Add, Subtract             | + -             |
+----+---------------------------+-----------------+
|  5 | Shift                     | >> <<           |
+----+---------------------------+-----------------+
|  6 | Relational                | < > <= >=       |
+----+---------------------------+-----------------+
|  7 | Equal, Not Equal          | == !=           |
+----+---------------------------+-----------------+
|  8 | Bitwise AND               | &               |
+----+---------------------------+-----------------+
|  9 | Bitwise XOR               | ^               |
+----+---------------------------+-----------------+
| 10 | Bitwise OR                | |               |
+----+---------------------------+-----------------+
| 11 | Logical AND               | &&              |
+----+---------------------------+-----------------+
| 12 | Logical OR                | ||              |
+----+---------------------------+-----------------+
| 13 | Ternary                   | ? :             |
+----+---------------------------+-----------------+
| 14 | Assignment                | = += -= etc     |
+----+---------------------------+-----------------+
| 15 | Comma                     | ,               |
+----+---------------------------+-----------------+