std::multiset::get_allocator

allocator_type get_allocator() const;

allocator_type get_allocator() const noexcept;

Get allocator

Returns a copy of the allocator object associated with the multiset.

Parameters

none

Return Value

The allocator.

Member type allocator_type is the type of the allocator used by the container, defined in multiset as an alias of its third template parameter (Alloc).

Example

// multiset::get_allocator
#include <iostream>
#include <set>

int main ()
{
  std::multiset<int> mymultiset;
  int * p;
  unsigned int i;

  // allocate an array of 5 elements using myset's allocator:
  p=mymultiset.get_allocator().allocate(5);

  // assign some values to array
  for (i=0; i<5; i++) p[i]=(i+1)*10;

  std::cout << "The allocated array contains:";
  for (i=0; i<5; i++) std::cout << ' ' << p[i];
  std::cout << '\n';

  mymultiset.get_allocator().deallocate(p,5);

  return 0;
}

The example shows an elaborate way to allocate memory for an array of ints using the same allocator used by the container.
Output:

The allocated array contains: 10 20 30 40 50

Complexity

Constant.

Iterator validity

No changes.

Data races

The container is accessed.
Concurrently accessing the elements of a multiset is safe.

Exception safety

No-throw guarantee: this member function never throws exceptions.
Copying any instantiation of the default allocator is also guaranteed to never throw.