list::list

Constructs a list of a specific size or with elements of a specific value or with a specific allocator or as a copy of all or part of some other list.

list( );
explicit list(
   const Allocator& _Al
);
explicit list(
   size_type _Count
);
list(
   size_type _Count,
   const Type& _Val
);
list(
   size_type _Count,
   const Type& _Val,
   const Allocator& _Al
);
list(
   const list<Type, Allocator>& _Right
);
template<class InputIterator>
   list(
      InputIterator _First,
      InputIterator _Last
   );
template<class InputIterator >
   list(
      InputIterator _First,
      InputIterator _Last,
      const Allocator& _Al
   );

Parameters

• _Al
  The allocator class to use with this object.

• _Count
  The number of elements in the list constructed.

• _Val
  The value of the elements in the list constructed.

• _Right
  The list of which the constructed list is to be a copy.

• _First
  The position of the first element in the range of elements to be copied.

• _Last
  The position of the first element beyond the range of elements to be copied.

Remarks

All constructors store an allocator object (_Al) and initialize the list.

get_allocator returns a copy of the allocator object used to construct a list.

The first two constructors specify an empty initial list, the second specifying the allocator type (_Al) to be used.

The third constructor specifies a repetition of a specified number (_Count) of elements of the default value for class Type.

The fourth and fifth constructors specify a repetition of (_Count) elements of value _Val.

The sixth constructor specifies a copy of the list _Right.

The last two constructors copy the range [_First, _Last) of a list.

None of the constructors perform any interim reallocations.

Example

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

int main( ) 
{
   using namespace std;
   list <int>::iterator c1_Iter, c2_Iter, c3_Iter, c4_Iter, c5_Iter, c6_Iter;

   // Create an empty list c0
   list <int> c0;

   // Create a list c1 with 3 elements of default value 0
   list <int> c1( 3 );

   // Create a list c2 with 5 elements of value 2
   list <int> c2( 5, 2 );

   // Create a list c3 with 3 elements of value 1 and with the 
   // allocator of list c2
   list <int> c3( 3, 1, c2.get_allocator( ) );

   // Create a copy, list c4, of list c2
   list <int> c4(c2);

   // Create a list c5 by copying the range c4[_First, _Last)
   c4_Iter = c4.begin( );
   c4_Iter++;
   c4_Iter++;
   list <int> c5( c4.begin( ), c4_Iter );

   // Create a list c6 by copying the range c4[_First, _Last) and with 
   // the allocator of list c2
   c4_Iter = c4.begin( );
   c4_Iter++;
   c4_Iter++;
   c4_Iter++;
   list <int> c6( c4.begin( ), c4_Iter, c2.get_allocator( ) );

   cout << "c1 =";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << " " << *c1_Iter;
   cout << endl;
   
   cout << "c2 =";
   for ( c2_Iter = c2.begin( ); c2_Iter != c2.end( ); c2_Iter++ )
      cout << " " << *c2_Iter;
   cout << endl;

   cout << "c3 =";
   for ( c3_Iter = c3.begin( ); c3_Iter != c3.end( ); c3_Iter++ )
      cout << " " << *c3_Iter;
   cout << endl;

   cout << "c4 =";
   for ( c4_Iter = c4.begin( ); c4_Iter != c4.end( ); c4_Iter++ )
      cout << " " << *c4_Iter;
   cout << endl;

   cout << "c5 =";
   for ( c5_Iter = c5.begin( ); c5_Iter != c5.end( ); c5_Iter++ )
      cout << " " << *c5_Iter;
   cout << endl;

   cout << "c6 =";
   for ( c6_Iter = c6.begin( ); c6_Iter != c6.end( ); c6_Iter++ )
      cout << " " << *c6_Iter;
   cout << endl;
}

c1 = 0 0 0
c2 = 2 2 2 2 2
c3 = 1 1 1
c4 = 2 2 2 2 2
c5 = 2 2
c6 = 2 2 2

Requirements

Header: <list>

Namespace: std

See Also

Concepts

list Class

list Class Members

list::list (STL Samples)

Standard Template Library