fig13_10.cpp

// fig13_10.cpp
// Standard library stack adaptor class.
#include <iostream>
#include <list> // list class-template definition
#include <ranges> 
#include <stack> // stack adaptor definition
#include <vector> // vector class-template definition

// pushElements generic lambda to push values onto a stack
auto pushElements = [](auto& stack) {
   for (auto i : std::views::iota(0, 10)) {
      stack.push(i); // push element onto stack                  
      std::cout << stack.top() << ' '; // view (and display) top element
   }
};

// popElements generic lambda to pop elements off a stack
auto popElements = [](auto& stack) {
   while (!stack.empty()) {
      std::cout << stack.top() << ' '; // view (and display) top element
      stack.pop(); // remove top element                           
   }
};

int main() {
   std::stack<int> dequeStack{}; // uses a deque by default
   std::stack<int, std::vector<int>> vectorStack{}; // use a vector 
   std::stack<int, std::list<int>> listStack{}; // use a list

   // push the values 0-9 onto each stack 
   std::cout << "Pushing onto dequeStack: ";
   pushElements(dequeStack);
   std::cout << "\nPushing onto vectorStack: ";
   pushElements(vectorStack);
   std::cout << "\nPushing onto listStack: ";
   pushElements(listStack);

   // display and remove elements from each stack
   std::cout << "\n\nPopping from dequeStack: ";
   popElements(dequeStack);
   std::cout << "\nPopping from vectorStack: ";
   popElements(vectorStack);
   std::cout << "\nPopping from listStack: ";
   popElements(listStack);
   std::cout << "\n";
}


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