std::pmr::polymorphic_allocator::deallocate_object - cppreference.com (original) (raw)

| 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));.

[edit] Parameters

[edit] Exceptions

Throws nothing.

[edit] Notes

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

[edit] See also

| | free raw memory obtained from allocate_bytes (public member function) [edit] | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | destroys and deallocates an object (public member function) [edit] | | | deallocates storage using the allocator (public static member function of std::allocator_traits) [edit] | | | deallocates memory (public member function of std::pmr::memory_resource) [edit] |