使用boost::fusion::front_extended_deque扩展队列的实例代码

使用boost::fusion::front_extended_deque扩展队列的实例代码

boost::fusion::front_extended_deque是一个扩展的队列，可以在队列的前面添加元素。

以下是一个使用boost::fusion::front_extended_deque的示例程序：

#include <iostream>
#include <boost/fusion/container/deque.hpp>
#include <boost/fusion/container/generation/make_deque.hpp>
#include <boost/fusion/algorithm/transformation/push_front.hpp>
#include <boost/fusion/algorithm/transformation/pop_back.hpp>

int main() {
  boost::fusion::deque<int, double> myDeque;
  myDeque = boost::fusion::make_deque(1, 2.0);

  std::cout << "Original deque: " << myDeque << std::endl;

  // Add element to front
  boost::fusion::push_front(myDeque, 'a');

  std::cout << "After adding an eleme