store.hpp

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#ifndef _STORE_HPP
#define _STORE_HPP

#include <stack>

template <typename T>
class Store {

 protected:

  std::stack<T*> items;

 public:

  Store() { }
  
  ~Store();

  T* newItem();

  void deleteItem(T* item);

};

template <typename T>
Store<T>::~Store() {
  while (!items.empty()) {
    delete items.top();
    items.pop();
  }
}

template <typename T>
T* Store<T>::newItem() {
  if (items.empty())
    return new T();
  else {
    T* item = items.top();
    items.pop();
    return item;
  }
}

template <typename T>
void Store<T>::deleteItem(T* item) {
  items.push(item);
}

#endif

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