How do I iterate safely and efficiently with std::queue?

Iterating over a std::queue in C++ can present challenges, as std::queue does not provide direct iterators like other containers. However, you can safely and efficiently iterate through a std::queue by using a temporary copy of the queue. Below is an example of how to do this:

#include #include int main() { std::queue myQueue; // Filling the queue with some values myQueue.push(1); myQueue.push(2); myQueue.push(3); // Create a copy of the queue for iteration std::queue tempQueue = myQueue; // Iterate safely through the queue while (!tempQueue.empty()) { std::cout << tempQueue.front() << std::endl; // Access the front element tempQueue.pop(); // Remove the front element } return 0; }

C++ std::queue iteration safe iteration C++ queues

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