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#include "stdafx.h"
#include<iostream>
#include<vector>
#include<list>
#include<iostream>
#include<string>
#include<algorithm>
#include<numeric>
using namespace std;
int main()
{
vector<int> vecINT,ivec;
for(int i=0;i!=5;++i)
{
vecINT.push_back(i);
}
copy(vecINT.begin(),vecINT.end(),inserter(ivec,ivec.begin()));
for(vector<int>::iterator iter=ivec.begin();iter!=ivec.end();++iter)
cout<<*iter<<" ";
cout<<endl;
system("pause");
return 0;
}
#include "stdafx.h"
#include<iostream>
#include<vector>
#include<list>
#include<iostream>
#include<string>
#include<algorithm>
#include<numeric>
using namespace std;
int main()
{
vector<int> vecINT,ivec;
for(int i=0;i!=5;++i)
{
vecINT.push_back(i);
}
copy(vecINT.begin(),vecINT.end(),front_inserter(ivec));
for(vector<int>::iterator iter=ivec.begin();iter!=ivec.end();++iter)
cout<<*iter<<" ";
cout<<endl;
system("pause");
return 0;
}
代码如上:
输出4 3 2 1 0
# include <iostream>
# include <vector>
using namespace std;
int main()
{
vector<int> v1, v2;
for (int i = 0; i < 5; i++)
v1.push_back(i);
for (vector<int>::iterator it = v1.begin(); it != v1.end(); ++it)
*inserter(v2, v2.begin()) = *it;
for (vector<int>::iterator it = v2.begin(); it != v2.end(); ++it)
cout << *it << endl;
return 0;
}
而这个iterator是会失效的,请和下面对比
# include <iostream>
# include <vector>
using namespace std;
int main()
{
vector<int> v1, v2;
for (int i = 0; i < 5; i++)
v1.push_back(i);
insert_iterator<vector<int> > foo = inserter(v2, v2.begin());
for (vector<int>::iterator it = v1.begin(); it != v1.end(); ++it)
*foo = *it;
for (vector<int>::iterator it = v2.begin(); it != v2.end(); ++it)
cout << *it << endl;
return 0;
}
# include <iostream>
# include <vector>
using namespace std;
int main()
{
vector<int> v1, v2;
for (int i = 0; i < 5; i++)
v1.push_back(i);
for (int i = 0; i < 5; i++)
v2.push_back(i);
copy(v1.begin(), v1.end(), inserter(v2, v2.begin() + 1));
for (vector<int>::iterator it = v2.begin(); it != v2.end(); ++it)
cout << *it << endl;
return 0;
}
注意,这里的v2不为空,且将v1插入v2的第一个元素之后。