20 Memory management library [mem]

20.3 Smart pointers [smartptr]

20.3.1 Unique-ownership pointers [unique.ptr]

20.3.1.4 unique_ptr for array objects with a runtime length [unique.ptr.runtime]

20.3.1.4.3 Assignment [unique.ptr.runtime.asgn]

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template<class U, class E> constexpr unique_ptr& operator=(unique_ptr<U, E>&& u) noexcept;
1
#
This operator behaves the same as in the primary template.
2
#
Constraints: Where UP is unique_ptr<U, E>:
  • (2.1)
    U is an array type, and
  • (2.2)
    pointer is the same type as element_type*, and
  • (2.3)
    UP​::​pointer is the same type as UP​::​element_type*, and
  • (2.4)
    UP​::​element_type(*)[] is convertible to element_type(*)[], and
  • (2.5)
    is_assignable_v<D&, E&&> is true.
[Note 1: 
This replaces the Constraints: specification of the primary template.
— end note]