2.1 KiB
[container.node.cons]
23 Containers library [containers]
23.2 Requirements [container.requirements]
23.2.5 Node handles [container.node]
23.2.5.2 Constructors, copy, and assignment [container.node.cons]
constexpr node-handle(node-handle&& nh) noexcept;
Effects: Constructs a node-handle object initializingptr_ with nh.ptr_.
Move constructs alloc_ withnh.alloc_.
Assigns nullptr to nh.ptr_ and assignsnullopt to nh.alloc_.
constexpr node-handle& operator=(node-handle&& nh);
Preconditions: Either !alloc_, orator_traits::propagate_on_container_move_assignment::value is true, or alloc_ == nh.alloc_.
Effects:
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If ptr_ != nullptr, destroys the value_type subobject in the container_node_type object pointed to by ptr_ by calling ator_traits::destroy, then deallocates ptr_ by calling ator_traits::template rebind_traits<container_node_type>::deallocate.
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Assigns nh.ptr_ to ptr_.
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If !alloc_ or ator_traits::propagate_on_container_move_assignment::value is true, move assigns nh.alloc_ to alloc_.
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Assignsnullptr to nh.ptr_ and assigns nullopt tonh.alloc_.
Returns: *this.
Throws: Nothing.