This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 112c. See for the official list.


2623. Invoking destroying operator delete for constructor failure

Section:  []     Status: drafting     Submitter: Blacktea Hamburger     Date: 2022-08-25

Subclause [] paragraph 28 specifies the lookup for the deallocation function that is invoked when the construction of the object in a new-expression exits via an exception. However, a destroying operator delete ( []) should never be used, because the object in question has not yet been fully created.

Suggested resolution [SUPERSEDED]:

Change in [] paragraph 28 as follows:

A declaration of a placement deallocation function matches the declaration of a placement allocation function if it has the same number of parameters and, after parameter transformations ( [dcl.fct]), all parameter types except the first are identical. If the lookup finds a single matching deallocation function, that function will be called; otherwise, no deallocation function will be called. If the lookup finds a usual deallocation function and that function, considered as a placement deallocation function, would have been selected as a match for the allocation function, the program is ill-formed. For a non-placement allocation function, the normal deallocation function lookup is used to find the matching deallocation function ( [expr.delete]) , except that any destroying operator delete ( []) is ignored.