For Loop

C++ For Loop

The for loop in C++ is a control flow statement that allows us to repeat a block of code a set number of times. It is used to iterate over a range of values.

Syntax

The for loop has the following syntax:

for (initialization; condition; increment/decrement) {
    // code to be executed
}

Let's take a look at each of these components in more detail:

• Initialization: This is the initial value of the loop variable. It is usually a variable declared before the loop starts.

• Condition: This is the condition that must be met in order for the loop to continue executing. The loop will terminate when this condition is false.

• Increment/Decrement: This is the amount by which the loop variable is incremented or decremented each time the loop executes.

Example

Let's take a look at a simple example. In this example, we will use a for loop to print the numbers from 0 to 10:

#include <iostream>

int main() {
    for (int i = 0; i <= 10; i++) {
        std::cout << i << " ";
    }
    return 0;
}

In this example, the loop variable i is initialized to 0 and then incremented by 1 each time the loop executes. The loop will terminate when i is greater than 10. The output of this program will be:

0 1 2 3 4 5 6 7 8 9 10 

Conclusion

The for loop is a powerful and versatile control flow statement in C++. It can be used to iterate over a range of values and perform a set of operations for each iteration.