[Development] How to port from Q_FOREACH to range-based for

Mutz, Marc marc at kdab.com
Wed Jun 12 10:31:33 CEST 2019


On 2019-06-12 08:23, Philippe wrote:
> On Wed, 12 Jun 2019 07:54:29 +0200
> Nicolas Arnaud-Cormos via Development <development at qt-project.org> 
> wrote:
> 
>> Whenever Qt is adding a new feature there's a teachability issue that
>> needs to be handled. Any duplication with the C++ standard adds
>> cognitive load to students.
>> One could dismiss that by saying just use the Qt solution, but it 
>> would
>> be hiding himself in a box: I'm working on customer codes (not mine),
> 
> Except that in this case, we are speaking about a side-effect of
> Copy-on-write, and this technique is an essential one to know, even
> independently from Qt, one technique that any student should be aware 
> of :)
> https://en.wikipedia.org/wiki/Copy-on-write

Have you run clazy on something like Qt 5.4, ie. before clazy was first 
run on Qt? One would think that if any student should be aware of CoW, 
so should any Qt dev. You're in for a surprise!


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