Expression Evaluation
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Expression Evaluation in C++
In c language expression evaluation is mainly depends on priority and associativity.
Priority:
This represents the evaluation of expression starts from "what" operator.
Associativity:
It represents which operator should be evaluated first if an expression is containing more than one operator with same priority.
| Operator | Priority | Associativity |
|---|---|---|
| {}, (), [] | 1 | Left to right |
| ++, --, ! | 2 | Right to left |
| *, /, % | 3 | Left to right |
| +, - | 4 | Left to right |
| <, <=, >, >=, ==, != | 5 | Left to right |
| && | 6 | Left to right |
| || | 7 | Left to right |
| ?: | 8 | Right to left |
| =, +=, -=, *=, /=, %= | 9 | Right to left |
Example 1:
Example 2:
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