back_insert_iterator::reference

为 back_insert_iterator提供一引用的类型。

typedef typename Container::reference reference;

备注

类型描述对元素的引用顺序控制由关联的容器。

示例

// back_insert_iterator_reference.cpp
// compile with: /EHsc
#include <iterator>
#include <vector>
#include <iostream>

int main( )
{
   using namespace std;
   int i;

   vector<int> vec;
   for (i = 1 ; i < 4 ; ++i )  
   {
      vec.push_back ( i );
   }
   
   vector <int>::iterator vIter;
   cout << "The vector vec is: ( ";
   for ( vIter = vec.begin ( ) ; vIter != vec.end ( ); vIter++)
      cout << *vIter << " ";
   cout << ")." << endl;

   back_insert_iterator<vector<int> >::reference 
        RefLast = *(vec.end ( ) - 1 );
   cout << "The last element in the vector vec is: " 
        << RefLast << "." << endl;
}

要求

头文件： <iterator>

命名空间: std

请参见

参考

back_insert_iterator 类

标准模板库