back_insert_iterator::back_insert_iterator

Constructs a back_insert_iterator that inserts elements after the last element in a container.

explicit back_insert_iterator(
   Container& _Cont
);

Parameters

• _Cont
  The container that the back_insert_iterator is to insert an element into.

Return Value

A back_insert_iterator for the parameter container.

Example

// 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;
}

The initial vector vec is: ( 1 2 3 ).
After the insertions, the vector vec is: ( 1 2 3 40 50 600 700 ).

Requirements

Header: <iterator>

Namespace: std

See Also

Concepts

back_insert_iterator Class

back_insert_iterator Members

Standard Template Library