insert_iterator.cpp

 ///
 /// @file    insert_iterator.cpp
 /// @author  haowang(improvesf@163.com)
 /// @date    2018-04-27 11:31:53
 ///
 
#include <iostream>
#include <vector>
#include <iterator>
#include <list>
#include <set>
using std::cout;
using std::endl;
using std::vector;
using std::list;
using std::set;
using std::ostream_iterator;
using std::back_insert_iterator;
using std::front_insert_iterator;
using std::insert_iterator;

int main(void)
{
	vector<int> numbers1{1,2,3};
	list<int> numbers2{4,5,6};

	//调用push_back方法，适用的容器有vector，list，deque
	copy(numbers2.begin(),numbers2.end(),back_insert_iterator<vector<int>>(numbers1));
	copy(numbers1.begin(),numbers1.end(),ostream_iterator<int>(cout," "));
	cout<<endl;
	cout<<"-----------------------"<<endl;

	//调用push_front方法，适用的容器有list，deque
	copy(numbers1.begin(),numbers1.end(),front_insert_iterator<list<int>>(numbers2));
	cout<<"list:";
	copy(numbers2.begin(),numbers2.end(),ostream_iterator<int>(cout," "));
	cout<<endl;
	cout<<"-----------------------"<<endl;

	auto it = numbers2.begin();
	++it;
	++it;
	++it;
	//调用insert方法
	copy(numbers1.begin(),numbers1.end(),insert_iterator<list<int>>(numbers2,it));
	cout<<"list:";
	copy(numbers2.begin(),numbers2.end(),ostream_iterator<int>(cout," "));
	cout<<endl;
	cout<<"----------------------"<<endl;

	set<int> numbers3;
	auto sit = numbers3.begin();
	//调用insert方法，适用于除std::array/std::forward_list以外的所有容器
	copy(numbers2.begin(),numbers2.end(),insert_iterator<set<int>>(numbers3,sit));
	cout<<"set:";
	copy(numbers3.begin(),numbers3.end(),ostream_iterator<int>(cout," "));
	cout<<endl;
}