list::swap

Exchanges the elements of two lists.

void swap(
   list<Type, Allocator>& _Right
);
friend void swap(
   list<Type, Allocator>& _Left,
   list<Type, Allocator>& _Right
)

Parameters

• _Right
  The list providing the elements to be swapped, or the list whose elements are to be exchanged with those of the list _Left.

• _Left
  A list whose elements are to be exchanged with those of the list _Right.

Example

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

int main( )
{
   using namespace std;
   list <int> c1, c2, c3;
   list <int>::iterator c1_Iter;

   c1.push_back( 1 );
   c1.push_back( 2 );
   c1.push_back( 3 );
   c2.push_back( 10 );
   c2.push_back( 20 );
   c3.push_back( 100 );

   cout << "The original list c1 is:";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << " " << *c1_Iter;
   cout << endl;

   c1.swap( c2 );

   cout << "After swapping with c2, list c1 is:";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << " " << *c1_Iter;
   cout << endl;

   swap( c1,c3 );

   cout << "After swapping with c3, list c1 is:";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << " " << *c1_Iter;
   cout << endl;
}

The original list c1 is: 1 2 3
After swapping with c2, list c1 is: 10 20
After swapping with c3, list c1 is: 100

Requirements

Header: <list>

Namespace: std

See Also

Concepts

list Class

list Class Members

Standard Template Library