Method push_back

Examples/NoModules/Chapter 21/Ex21_03/Array.h:124–133

// push_back() overload for lvalue references
template <typename T> requires std::default_initializable<T> && std::destructible<T>
void Array<T>::push_back(T element) requires std::movable<T>
{
  Array<T> newArray{m_size + 1};      // Allocate a larger Array<>
  for (size_t i{}; i < m_size; ++i)   // Move all existing elements...
    newArray[i] = std::move(m_elements[i]);

  newArray[m_size] = std::move(element); // Move the new one (could itself be a copy already)...

  swap(newArray);                     // ... and swap!
}

#endif