back_insert_iterator::back_insert_iterator

构造在容器中的最后一个元素之后插入元素的 back_insert_iterator。

explicit back_insert_iterator( 
   Container& _Cont 
);

参数

• _Cont
  容器 back_insert_iterator 是插入元素中。

返回值

容器参数的 back_insert_iterator。

示例

// back_insert_iterator_back_insert_iterator.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 initial vector vec is: ( ";
   for ( vIter = vec.begin ( ) ; vIter != vec.end ( ); vIter++)
      cout << *vIter << " ";
   cout << ")." << endl;

   // Insertions with member function
   back_inserter ( vec ) = 40;
   back_inserter ( vec ) = 50;

   // Alternatively, insertions can be done with template function
   back_insert_iterator<vector<int> > backiter ( vec );
   *backiter = 600;
   backiter++;
   *backiter = 700;

   cout << "After the insertions, the vector vec is: ( ";
   for ( vIter = vec.begin ( ) ; vIter != vec.end ( ); vIter++)
      cout << *vIter << " ";
   cout << ")." << endl;
}

要求

头文件： <iterator>

命名空间: std

请参见

参考

back_insert_iterator 类

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