text: // Copyright (c) 2017 The PIVX developers
  // Copyright (c) 2019 The UFY developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #pragma once
  /*
      Template used for reverse iteration in C++11 range-based for loops.
      std::vector<int> v = {1, 2, 3, 4, 5};
      for (auto x : reverse_iterate(v))
          std::cout << x << " ";
   */
  
  template <typename T>
  class reverse_range
  {
      T &x;
      
  public:
      reverse_range(T &x) : x(x) {}
      
      auto begin() const -> decltype(this->x.rbegin())
      {
          return x.rbegin();
      }
      
      auto end() const -> decltype(this->x.rend())
      {
          return x.rend();
      }
  };
   
  template <typename T>
  reverse_range<T> reverse_iterate(T &x)
  {
      return reverse_range<T>(x);
  }
  
  