This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of Open status.
Section: 15.4.1 [structure] Status: Open Submitter: Jens Maurer Opened: 2012-03-08 Last modified: 2016-02-10
View all issues with Open status.
The front matter in clause 17 should clarify that postconditions will not hold if a standard library function exits via an exception. Postconditions or guarantees that apply when an exception is thrown (beyond the basic guarantee) are described in an "Exception safety" section.
[ 2012-10 Portland: Move to Open ]
Consensus that we do not clearly say this, and that we probably should. A likely location to describe the guarantees of postconditions could well be a new sub-clause following 220.127.116.11 [res.on.required] which serves the same purpose for requires clauses. However, we need such wording before we can make progress.
Also, see 2137 for a suggestion that we want to see a paper resolving both issues together.
[2015-05-06 Lenexa: EirkWF to write paper addressing 2136 and 2137]
MC: Idea is to replace all such "If no exception" postconditions with "Exception safety" sections.