std::allocator_traits::allocate

 

C++

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std::allocator_traits

Member functions

allocator_traits::allocate

allocator_traits::deallocate

allocator_traits::construct

allocator_traits::destroy

allocator_traits::max_size

allocator_traits::select_on_container_copy_construction

 

Defined in header <memory>
static pointer allocate( Alloc& a, size_type n );	(1)	(since C++11)
static pointer allocate( Alloc& a, size_type n, const_void_pointer hint );	(2)	(since C++11)

Uses the allocator a to allocate n*sizeof(Alloc::value_type) bytes of uninitialized storage.

1) Calls a.allocate(n)

2) Additionally passes memory locality hint hint. Calls a.allocate(n, hint) if possible. If not possible (e.g. a has no two-argument member function allocate()), calls a.allocate(n)

Parameters

a	-	allocator to use
n	-	the number of objects to allocate storage for
hint	-	pointer to a nearby memory location

Return value

The pointer returned by the call to a.allocate(n)

See also

allocate

allocates uninitialized storage (public member function of std::allocator)