std::pmr::polymorphic_allocator<T>::deallocate_object
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));
Parameters
| p | - | pointer to memory to deallocate |
| n | - | number of objects of type U the memory was for |
Exceptions
Throws nothing.
Notes
This function was introduced for use with the fully-specialized allocator std::polymorphic_allocator<>, but it may be useful in any specialization.
See also
|
(C++20) | Free raw memory obtained from allocate_bytes (public member function) |
|
(C++20) | Destroys and deallocates an object (public member function) |
|
[static] | deallocates storage using the allocator (public static member function of std::allocator_traits<Alloc>) |
| deallocates memory (public member function of std::pmr::memory_resource) |
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