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vector::get_allocator

Returns a copy of the allocator object used to allocate and deallocate memory for the vector’s elements.

Allocator get_allocator( ) const;

The allocator used by the vector.

The allocator controls 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.

// 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
}

Header: <vector>

Namespace: std

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