23 General utilities library [utilities]

23.11 Smart pointers [smartptr]

23.11.1 Class template unique_­ptr [unique.ptr] Default deleters [unique.ptr.dltr] default_­delete [unique.ptr.dltr.dflt]

namespace std {
  template <class T> struct default_delete {
    constexpr default_delete() noexcept = default;
    template <class U> default_delete(const default_delete<U>&) noexcept;
    void operator()(T*) const;

template <class U> default_delete(const default_delete<U>& other) noexcept;

Effects: Constructs a default_­delete object from another default_­delete<U> object.

Remarks: This constructor shall not participate in overload resolution unless U* is implicitly convertible to T*.

void operator()(T* ptr) const;

Effects: Calls delete on ptr.

Remarks: If T is an incomplete type, the program is ill-formed.