std::pmr::polymorphic_allocator<T>::deallocate

void deallocate(T* p, std::size_t n );		(C++17 起)

解分配 p 所指向的存储，它必须由从比较等于 *resource() 的 std::pmr::memory_resource x 用 x.allocate(n * sizeof(T), alignof(T)) 分配。

等价于 this->resource()->deallocate(p, n * sizeof(T), alignof(T));

p	-	指向要解分配的内存
n	-	原先分配的对象数目

不抛出任何异常。

deallocate [静态]	用分配器解分配存储 (`std::allocator_traits<Alloc>` 的公开静态成员函数)
deallocate	解分配内存 (`std::pmr::memory_resource` 的公开成员函数)

成员函数
polymorphic_allocator::polymorphic_allocator
polymorphic_allocator::allocate
polymorphic_allocator::deallocate
polymorphic_allocator::construct
polymorphic_allocator::destroy
polymorphic_allocator::allocate_bytes (C++20)
polymorphic_allocator::deallocate_bytes (C++20)
polymorphic_allocator::allocate_object (C++20)
polymorphic_allocator::deallocate_object (C++20)
polymorphic_allocator::new_object (C++20)
polymorphic_allocator::delete_object (C++20)
polymorphic_allocator::select_on_container_copy_construction
polymorphic_allocator::resource
非成员函数
operator==operator!=