October 2004
Beginner
408 pages
9h 24m
English
Content preview from C Programming: Visual Quickstart Guide
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Understanding Precedence
As you were probably taught when you first learned arithmetic, operators have a precedence: rules dictating in what order calculations are made. These are important to understand because they can dramatically affect the end result.
Table 3.2 lists the order of precedence in C for the arithmetic operators, but it's probably easiest just to follow these three rules:
1. | Multiplication and division take place before addition and subtraction. |
2. | Operators with the same precedence level are executed from left to right. |
3. | Use parentheses to guarantee your results. |
| Rules of Precedence |
|---|
| Operator |
| () |
| ++, -- |
| +, - (Sign operators) ... |
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