Title
Declaring explicitly-defaulted implicitly-deleted functions
Status
cd4
Section
9.5.2 [dcl.fct.def.default]
Submitter
Richard Smith

Created on 2014-01-30.00:00:00 last changed 49 months ago

Messages

Date: 2014-11-15.00:00:00

[Moved to DR at the November, 2014 meeting.]

Date: 2014-02-15.00:00:00

Proposed resolution (February, 2014):

Change 9.5.2 [dcl.fct.def.default] paragraph 2 as follows:

An explicitly-defaulted function that is not defined as deleted may be declared constexpr only if it would have been implicitly declared as constexpr.
Date: 2014-07-07.00:00:00

According to 9.5.2 [dcl.fct.def.default] paragraph 2,

An explicitly-defaulted function may be declared constexpr only if it would have been implicitly declared as constexpr.

However, the rules for determining whether a function is constexpr and its exception-specification depend on the definition of function and do not apply to deleted functions. Can an explicitly-defaulted implicitly-deleted function be declared constexpr or have an exception-specification, and if so, how is its correctness to be determined?

History
Date User Action Args
2017-02-06 00:00:00adminsetstatus: drwp -> cd4
2015-05-25 00:00:00adminsetstatus: dr -> drwp
2015-04-13 00:00:00adminsetmessages: + msg5379
2014-11-24 00:00:00adminsetstatus: ready -> dr
2014-07-07 00:00:00adminsetmessages: + msg5069
2014-07-07 00:00:00adminsetstatus: review -> ready
2014-01-30 00:00:00admincreate