front_insert_iterator::operator*

Dereferences the insert iterator returning the element it addresses.

front_insert_iterator<Container>& operator*( );

Return Value

The member function returns the value of the element addressed.

Remarks

Used to implement the output iterator expression *Iter = value. If Iter is an iterator that addresses an element in a sequence, then *Iter = value replaces that element with value and does not change the total number of elements in the sequence.

Example

// front_insert_iterator_deref.cpp
// compile with: /EHsc
#include <iterator>
#include <list>
#include <iostream>

int main( )
{
   using namespace std;
   int i;
   list <int>::iterator L_Iter;

   list<int> L;
   for ( i = -1 ; i < 9 ; ++i ) 
   {
      L.push_back ( 2 * i );
   }

   cout << "The list L is:\n ( ";
   for ( L_Iter = L.begin( ) ; L_Iter != L.end( ); L_Iter++)
      cout << *L_Iter << " ";
   cout << ")." << endl;

   front_insert_iterator< list < int> > Iter(L);
   *Iter = 20;

   // Alternatively, you may use
   front_inserter ( L ) = 30;

   cout << "After the front insertions, the list L is:\n ( ";
   for ( L_Iter = L.begin( ) ; L_Iter != L.end( ); L_Iter++)
      cout << *L_Iter << " ";
   cout << ")." << endl;
}

The list L is:
 ( -2 0 2 4 6 8 10 12 14 16 ).
After the front insertions, the list L is:
 ( 30 20 -2 0 2 4 6 8 10 12 14 16 ).

Requirements

Header: <iterator>

Namespace: std

See Also

Reference

front_insert_iterator Class

Standard Template Library