What does the double equal sign mean in C language?

The double equal sign (==) in C language is the assignment operator, used to assign a value to a variable: Syntax: variable_name == value; Usage: Assign the value of the expression on the right to the left The specified variable; note: the double equal sign is an assignment operator, not a comparison operator. The comparison operator is a single equal sign (=).

Double equal sign in C language: assignment operator

In C language, double equal sign (= =) is the assignment operator, used to assign a value to a variable.

Syntax

<code class="c">variable_name == value;</code>

Usage

The assignment operator assigns the value of the expression on the right to the variable specified on the left. For example:

<code class="c">int number = 10;</code>

This will assign the value 10 to the variable number.

Assignment operations and comparison operations

It is worth noting that the double equal sign (==) is an assignment operator, not a comparison operator. The comparison operator is the single equal sign (=), which is used to compare the values ​​of two expressions. For example:

<code class="c">if (number == 10) {
  // ...
}</code>

This will check if number is equal to 10 instead of assigning 10 to number.

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