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

Iterating through a `std::stack` in C++ can be a bit tricky, as stacks do not provide direct access to their elements like other standard containers (e.g., vectors or lists). However, it is still possible to iterate through a stack effectively by utilizing the stack’s LIFO (Last In, First Out) nature. Below is an example illustrating how to safely and efficiently iterate through a `std::stack` by popping elements off the stack while processing them:

#include <iostream> #include <stack> int main() { std::stack myStack; // Push elements onto the stack for (int i = 1; i <= 5; ++i) { myStack.push(i); } // Iterate and process elements in the stack while (!myStack.empty()) { int topElement = myStack.top(); std::cout << "Processing: " << topElement << std::endl; myStack.pop(); // Safely remove the top element } return 0; }

C++ std::stack iteration safe iteration LIFO stack operations data structures

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?