On Monday 21 March 2016 10:46:40 Sean Harmer wrote: > On Sunday 20 March 2016 18:28:37 Thiago Macieira wrote: > > On domingo, 20 de março de 2016 12:07:01 GMT Sean Harmer wrote: > > > Hi, > > > > > > Can MSVC 2012 configurations be removed from the CI please? My > > > understanding is that this compiler was only kept around to support > > > Windows EC but that this is now removed from 5.7. In particular this > > > compiler is a blocker to using a using declaration such as: > > > > > > template<typename T> > > > using QNodeCreatedChangePtr = QSharedPointer<QNodeCreatedChange<T>>; > > > > We haven't yet done a re-evaluation of which C++11 features are allowed > > in our code without #ifndef. For the moment, template aliases are not > > permitted. > > > > Or, put another way, can someone do that evaluation and post to the list? > > Dropping MSVC2012 as per > > http://lists.qt-project.org/pipermail/development/2016-March/025129.html > > would remove the block from being able to use template aliases according to > > https://msdn.microsoft.com/en-us/library/hh567368.aspx > > I don't have ready access to all the other compilers and versions we > support but I think this would allow potential use of: > > * template aliases > * raw string literals > * delegating ctors > > Marc, you likely know compiler limitations much better than I do, do you > have any inputs on this please?
This has been discussed in the context of 5.8 already: Thiago's list of additional features that dropping MSVS 2012 would enable: http://lists.qt-project.org/pipermail/development/2016-February/024902.html And my quick evaluation of each: http://lists.qt-project.org/pipermail/development/2016-February/024910.html I said then and I repeat it now that imho template aliases are not interesting for library development. In particular, I don't think something like > > > template<typename T> > > > using QNodeCreatedChangePtr = QSharedPointer<QNodeCreatedChange<T>>; should be part of an API of a library. We have auto to avoid having to type this type. The typedefs just hide the (essential) fact that this is a shared pointer type. Thanks, Marc -- Marc Mutz <[email protected]> | Senior Software Engineer KDAB (Deutschland) GmbH & Co.KG, a KDAB Group Company Tel: +49-30-521325470 KDAB - The Qt Experts _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
