vector::get_allocator

Article
12/01/2015

Returns a copy of the allocator object used to construct the vector.

Syntax

Allocator get_allocator( ) const;

Return Value

The allocator used by the vector.

Remarks

Allocators for the vector class specify how the class manages storage. The default allocators supplied with STL container classes are sufficient for most programming needs. Writing and using your own allocator class is an advanced C++ topic.

Example

// vector_get_allocator.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>

int main( )
{
   using namespace std;
   // The following lines declare objects that use the default allocator.
   vector<int> v1;
   vector<int, allocator<int> > v2 = vector<int, allocator<int> >(allocator<int>( )) ;

   // v3 will use the same allocator class as v1
   vector <int> v3( v1.get_allocator( ) );

   vector<int>::allocator_type xvec = v3.get_allocator( );
   // You can now call functions on the allocator class used by vec
}

Requirements

Header: <vector>

Namespace: std