C++ Loops

C++ Loops

Introduction:
C++ provides several loop structures that allow developers to execute a block of code repeatedly as long as certain conditions are met. Loops are a fundamental aspect of programming, enabling efficient and concise code execution. In this documentation, we will explore the different types of loops available in C++ and their usage.

1. while Loop:
The while loop is a basic loop structure that repeatedly executes a block of code as long as a specified condition remains true. It evaluates the condition before executing the loop's body, making it suitable for scenarios where the number of iterations is uncertain.

Syntax:

cpp
while (condition) {
    // Code to be executed repeatedly
}

2. for Loop:
The for loop is another essential loop in C++. It is commonly used when you know the exact number of iterations you want to perform. The loop consists of three parts: initialization, condition, and update. The initialization is executed only once at the beginning, the condition is checked before each iteration, and the update is performed at the end of each iteration.

Syntax:

cpp
for (initialization; condition; update) {
    // Code to be executed repeatedly
}

3. do-while Loop:
The do-while loop is similar to the while loop, but it evaluates the condition after executing the loop's body. This ensures that the loop's body is executed at least once, even if the condition is false from the start.

Syntax:

cpp
do {
    // Code to be executed repeatedly
} while (condition);

4. Range-based for Loop:
The range-based for loop is introduced in C++11 and provides a concise way to iterate over elements of a container, such as arrays, vectors, or other collections.

Syntax:

cpp
for (datatype variable : container) {
    // Code to be executed for each element in the container
}

Conclusion:
In this documentation, we have covered the various loop structures available in C++: while, for, do-while, and the range-based for loop. Understanding these loop structures is crucial for writing efficient and organized code that involves repetitive tasks. By choosing the appropriate loop for a specific scenario, developers can optimize their C++ programs and improve overall code readability and maintainability. Happy coding!