RELATIONALOPERTORS.md

C++ Relational Operators

Relational operators in C++ are used to compare two values. These operators return a boolean value, either true or false, based on the result of the comparison. This guide will explore each relational operator and provide examples of their usage.

List of Relational Operators

• == : Equal to
• != : Not equal to
• > : Greater than
• < : Less than
• >= : Greater than or equal to
• <= : Less than or equal to

Usage and Examples

1. Equal to (==)

Checks if two values are the same.

int a = 5;
int b = 5;
bool isEqual = (a == b);  // Returns true

2. Not equal to (!=)

Checks if two values are different.

int a = 5;
int b = 6;
bool isDifferent = (a != b);  // Returns true

3. Greater than (>)

Checks if the left value is greater than the right value.

int a = 10;
int b = 5;
bool isGreater = (a > b);  // Returns true

4. Less than (<)

Checks if the left value is less than the right value.

int a = 5;
int b = 10;
bool isLess = (a < b);  // Returns true

5. Greater than or equal to (>=)

Checks if the left value is greater than or equal to the right value.

int a = 10;
int b = 10;
bool isGreaterOrEqual = (a >= b);  // Returns true

6. Less than or equal to (<=)

Checks if the left value is less than or equal to the right value.

int a = 5;
int b = 5;
bool isLessOrEqual = (a <= b);  // Returns true

Usage in Conditional Statements

Relational operators are commonly used in conditional statements like if.

int x = 10;
int y = 20;

if (x < y) {
    std::cout << "x is less than y." << std::endl;
} else {
    std::cout << "x is not less than y." << std::endl;
}

Conclusion

Relational operators are essential tools in C++ programming, allowing for comparisons and decision-making in your code. Understanding and using these operators correctly is crucial for writing effective and efficient programs.