The difference between = and == in c++

The difference between = and == in C: "=" is an assignment operator, assigning a value to a variable or reference; "==" is an equality operator, comparing whether two values ​​are equal and returning a Boolean value .

The difference between = and == in C

The = and == in C are two different Operators, with different functions and uses.

= (assignment operator)

• is used to assign a value to a variable or reference.
• For example: int x = 5;

== (Equality operator)

• Used to compare whether two values ​​are equal and return a Boolean value (true or false).
• For example: if (x == 5)

Table 1: Main differences between = and ==

##PurposeAssignmentComparisonReturn valueNoneBoolean valueThe left-hand operandcan be assigned to a variable or referencecan be any expressionthe operation resultafter assignment Variable valueBoolean value, indicating whether the two values ​​are equal

Features	=	==

Note:

In C, the == operator has higher precedence than the = operator.
• The == operator cannot be used for assignment, otherwise a compilation error will occur.
• = and == operators can be overloaded, that is, define different behaviors for user-defined types.

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