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The Range-Based for Loop (foreach) in C++

C++11 introduced the range-based for loop, also known as the foreach loop, which simplifies iterating over elements in a container like arrays or vectors.

Syntax of the Range-Based for Loop

for (element_type element : container) {
    // Code to execute
}

Example: Iterating Over an Array

#include <iostream>

int main() {
    int numbers[] = {1, 2, 3, 4, 5};
    for (int num : numbers) {
        std::cout << "Number: " << num << std::endl;
    }
    return 0;
}

Key Takeaways

  • The range-based for loop simplifies iteration over containers.
  • Improves code readability and reduces the chance of errors.
  • Requires C++11 or later.
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