//
// Forward_list.hpp
// 练习
//
// Created by hanzhiqiang on 2017/6/11.
// Copyright © 2017年 hanzhiqiang. All rights reserved.
//

#ifndef Forward_list_hpp
#define Forward_list_hpp

#include <stdio.h>
#include <iostream>
#include <forward_list>

using namespace std;

int main()
{
  forward_list<string> mList;
  mList.emplace_front("aaa");
  mList.emplace_front("bbb");
  mList.emplace_front("ccc");
  
  for (auto it = mList.begin(); it != mList.end(); it++)
  {
    cout<<*it<<endl;
  }
  
//  for (auto it = mList.before_begin(); it != mList.end(); it++)
//  {
//    cout<<*it<<endl;
//  }
  
//  auto itList = find(mList.begin(), mList.end(), "fff");
//  if (itList != mList.end()) \
//  {
//    mList.emplace_after(itList, "111");
//  }
//  else
//  {
//    mList.insert_after(mList.end(),"222");//c++ primer p 313 向末尾插入数据结果未知 error
//  }
  
  auto prev = mList.before_begin();
  auto curr = mList.begin();
  bool isInsert = false;
  while (curr != mList.end())
  {
    if (*curr == "fff")
    {
      curr = mList.insert_after(curr, "111");
      isInsert = true;
    }
    prev = curr;
    curr++;
  }
  
  if(!isInsert)
  {
    curr = mList.insert_after(prev, "222");//向末尾插入数据成功
  }
  
  for (auto it = mList.begin(); it != mList.end(); it++)
  {
    cout<<"插入元素后"<<*it<<endl;
  }
  
  cout<<"fuck"<<endl;
  return 0;
}

#endif /* Forward_list_hpp */