C++ STL copy copy_backward

#include <iostream>
#include <algorithm>
#include <vector>
#include <functional>
#include <list>

using namespace std;


int main()
{
  list<int> list1;
  for (int k=0;k<10;k++)
  {
    list1.insert(list1.end(),k);
  }

  list<int>::iterator list_iter1;
  for (list_iter1 = list1.begin();list_iter1 != list1.end();++list_iter1)
  {
    cout << *list_iter1 << " ";
  }
  cout << endl;
  cout << "----------------------------------------------------------" << endl;

  vector<int> vec1(list1.size()*2);
  vector<int>::iterator vec_iter1;

  for (vec_iter1 = vec1.begin();vec_iter1 != vec1.end(); ++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "----------------------------------------------------------" << endl;

  copy(list1.begin(),list1.end(),vec1.begin());
  for (vec_iter1 = vec1.begin(); vec_iter1 != vec1.end(); ++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "----------------------------------------------------------" << endl;

  copy_backward(list1.begin(),list1.end(),vec1.end());
  for (vec_iter1 = vec1.begin(); vec_iter1 != vec1.end(); ++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "----------------------------------------------------------" << endl;


  system("pause");
  return 0;
}

========================================================

0 1 2 3 4 5 6 7 8 9
----------------------------------------------------------
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
----------------------------------------------------------
0 1 2 3 4 5 6 7 8 9 0 0 0 0 0 0 0 0 0 0
----------------------------------------------------------
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
----------------------------------------------------------
请按任意键继续. . .

posted @ 2019-06-12 08:24  西北逍遥  阅读(355)  评论(0编辑  收藏  举报