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C++ Relational and Equality Operators
In C Programming, the values hold on in 2 variables will be compared exploitation following operators and relation between them will be determined. These operators are called relational operators. Various C++ relational operators available are-
| Operators | Description |
|---|---|
| > | Greater than |
| >= | Greater than or equal to |
| <= | Less than or equal to |
| < | Less than |
You can use these operators for checking the relationship between the operands. These operators are mostly used in conditional statements and loops to find a relation between 2 operands and act accordingly. For example,
Example
#include<iostream>
using namespace std;
int main() {
int a = 3, b = 2;
if(a < b) {
cout<< a << " is less than " << b;
}
else if(a > b) {
cout<< a << " is greater than " << b;
}
return 0;
}Output
This will give the output −
3 is greater than 2
The equality operators in C++ are is equal to(==) and is not equal to(!=). They do the task as they are named. The binary equality operators compare their operands for strict equality or inequality. The equality operators, equal to (==) and not equal to (!=), have lower precedence than the relational operators, but they behave similarly. The result type for these operators is bool.
The equal-to operator (==) returns true (1) if both operands have the same value; otherwise, it returns false (0). The not-equal-to operator (!=) returns true if the operands do not have the same value; otherwise, it returns false.
Example
#include <iostream>
using namespace std;
int main() {
cout << boolalpha // For printing true and false as true and false in case of a bool result
<< "The true expression 3 != 2 yields: "
<< (3 != 2) << endl
<< "The false expression 20 == 10 yields: "
<< (20 == 10) << endl;
}Output
This gives the output −
The true expression 3 != 2 yields: true The false expression 20 == 10 yields: false
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