This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 116a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2024-12-19

1081. Defaulted destructor and unusable operator delete

[Voted into the WP at the March, 2011 meeting.]

A defaulted destructor should be implicitly defined as deleted if operator delete is deleted or inaccessible.

Proposed resolution (November, 2010):

Change 11.4.7 [class.dtor] paragraph 3 as follows:

...A defaulted destructor for a class X is defined as deleted if:

• X is a union-like class that has a variant member with a non-trivial destructor,

• any of the non-static data members has class type M (or array thereof) and M has a deleted destructor or a destructor that is inaccessible from the defaulted destructor, or

• any direct or virtual base class has a deleted destructor or a destructor that is inaccessible from the defaulted destructor.,

• or, for a virtual destructor, lookup of the non-array deallocation function results in an ambiguity or in a function that is deleted or inaccessible from the defaulted destructor.

A destructor is trivial if...