Title
is_convertible may lead to ODR
Status
new
Section
[meta.rel]
Submitter
Alisdair Meredith

Created on 2017-09-24.00:00:00, last changed 2018-08-22.12:55:05.

Messages

Date: 2018-08-22.12:55:05

[ 2018-08 Batavia Monday issue discussion ]

Issues 2797, 2939, 3022, and 3099 are all closely related. Walter to write a paper resolving them.

Date: 2017-11-09.15:13:04

[ 2017-11 Albuquerque Wednesday night issues processing ]

Priority set to 2

Date: 2017-09-24.00:00:00

Given two incomplete types, base and derived, that will have the expected base/derived relationship when complete, the trait is_convertible claims to support instantiation with pointers to these types (as pointers to incomplete types are, themselves, complete), yet will give a different answer when the types are complete vs. when they are incomplete.

We should require pointers (and pointers to pointers etc.) point to a complete type, unless one is a pointer to cv-void. We may also want some weasel-wording to permit pointers to arrays-of-unknown-bound, and pointers to cv-qualified variants of the same incomplete type.

History
Date User Action Args
2018-08-22 12:55:05adminsetmessages: + msg10058
2017-11-09 15:13:04adminsetmessages: + msg9490
2017-09-24 00:00:00admincreate