Dynamic memory management
Uninitialized storage
Garbage collection support
C Library
Low level memory management
template <class U>
void deallocate_object( U* p, std::size_t n = 1 );
(since C++20)

Deallocates the storage pointed to by p, which must have been allocated from a std::pmr::memory_resource x that compares equal to *resource(). using x.allocate(n*sizeof(U), alignof(U)), typically through a call to allocate_object<U>(n).

Equivalent to deallocate_bytes(p, n*sizeof(U), alignof(U));


p - pointer to memory to deallocate
n - number of objects of type U the memory was for


Throws nothing.


This function was introduced for use with the fully-specialized allocator std::polymorphic_allocator<>, but it may be useful in any specialization.

See also

Free raw memory obtained from allocate_bytes
(public member function)
Destroys and deallocates an object
(public member function)
deallocates storage using the allocator
(public static member function of std::allocator_traits<Alloc>)
deallocates memory
(public member function of std::pmr::memory_resource)