Expression Evaluation in C++

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: