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C++ Comparison Operators

Comparison Operators

Comparison operators are used to compare two values. This is important in programming, because it helps us to find answers and make decisions.

The return value of a comparison is either 1 or 0, which means true (1) or false (0). These values are known as Boolean values, and you will learn more about them in the Booleans and If..Else chapter.

In the following example, we use the greater than operator (>) to find out if 5 is greater than 3:


int x = 5;
int y = 3;
cout << (x > y); // returns 1 (true) because 5 is greater than 3
Try it Yourself »

A list of all comparison operators:

Operator Name Example Try it
== Equal to x == y Try it »
!= Not equal x != y Try it »
> Greater than x > y Try it »
< Less than x < y Try it »
>= Greater than or equal to x >= y Try it »
<= Less than or equal to x <= y Try it »

You will learn much more about comparison operators and how to use them in a later chapter.