> On 6 Sep 2024, at 22:36, Thiago Macieira <thiago.macie...@intel.com> wrote: > > On Friday 6 September 2024 16:21:56 CEST Mårten Nordheim via Development > wrote: >> But do we make it QList<int> _just in case_ there are multiple results >> added? > > From my limited exposure to QFuture/QPromise and in particular the bugs I've > had to triage, that is a design flaw. > > The future/promise doesn't know how many results will be provided, so there's > a race condition in it flagging the future has arrived with more results > arriving.
QFuture is QGenerator in disguise. Can we make it std::optional<T>? co_await awaits the next result, which might turn out to be "no result” (we don’t know at the time of the co_await call). Would that work? Even in the case of a single result only that can still be “no result” in case of cancellation, which again would suggest using an optional. Morten -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
