On Friday, 18 September 2020 14:51:17 PDT André Pönitz wrote:
> > Because we should push our users to adopt new compiler versions.
>
> What kind of political agenda is that?
>
> Pushing for newer anything just means we are leaving people behind.
>
> This might be justified in some cases if
On Fri, Sep 18, 2020 at 11:56:38AM -0700, Thiago Macieira wrote:
> On Friday, 18 September 2020 09:38:12 PDT Ville Voutilainen wrote:
> > > We should use one of the types from [1]. Yes, it's C++20; we can
> > > make our internal API return an integer that is convertible to those types
> > > in the
> What is it you need? Just some total ordering of variants? The method you
> mentioned in
> QAbstractItemModel also only does ordering for some types, otherwise falling
> back to
> strings.
I am using QVariant comparison (==, >, <) only for equal types. But not in
models. I use
it for other
> > Has anything changed for Qt6 (especially regarding comparison of equal
> > and/or convertible types)? Is the complete deprecation still the latest
> > decision?
>
> Yes, it's changed; no, it's not deprecation.
>
> What's been removed is the conversion. Aside from the numeric types,
>
On Friday, 18 September 2020 09:38:12 PDT Ville Voutilainen wrote:
> > We should use one of the types from [1]. Yes, it's C++20; we can
> > make our internal API return an integer that is convertible to those
> > types in the front-end API, under #if __has_include().
> >
> > [1]
On Fri, 18 Sep 2020 at 18:13, Thiago Macieira wrote:
>
> On Friday, 18 September 2020 06:48:50 PDT Lars Knoll wrote:
> > std::optional QVariant::compare(const QVariant );
> >
> > Would that be good enough?
>
> Why the optional?
>
> We should use one of the types from [1]. Yes, it's C++20; we can
On Friday, 18 September 2020 01:44:36 PDT Giuseppe D'Angelo via Development
wrote:
> Il 18/09/20 02:54, Thiago Macieira ha scritto:
> > What's been removed is the conversion. Aside from the numeric types,
> > comparing two variants of different types will always result in false. If
> > you want
On Friday, 18 September 2020 06:48:50 PDT Lars Knoll wrote:
> std::optional QVariant::compare(const QVariant );
>
> Would that be good enough?
Why the optional?
We should use one of the types from [1]. Yes, it's C++20; we can make
our internal API return an integer that is convertible to those
On Friday, 18 September 2020 01:59:50 PDT Albert Astals Cid via Development
wrote:
> We have a few generic item models and proxy models that implement sorting,
> they did so by using operator< of QVariant.
>
> I want a way to be able to do the same in Qt6 in a way that ideally doesn't
> involve
On Friday, 18 September 2020 01:50:50 PDT Konstantin Tokarev wrote:
> In Qt4 times comparison operators for QVariant were missing and from my
> experience main limitation was that it wasn't possible to have QVariant as
> a key in QMap without defining one manually.
Correct. That's because you
On 18 Sep 2020, at 14:19, Albert Astals Cid
mailto:albert.astals@kdab.com>> wrote:
[snip]
I’m not really in favour of adding an operator<() to QVariant again, as it
would need to provide some decent ordering, and that would probably cause
conflicts with operator=() that does somewhat loose
El divendres, 18 de setembre de 2020, a les 13:25:45 CEST, Lars Knoll va
escriure:
> > On 18 Sep 2020, at 11:23, Albert Astals Cid via Development
> > wrote:
> > El divendres, 18 de setembre de 2020, a les 11:00:23 CEST, André Somers va
> >
escriure:
> >
> >> On 18-09-2020 09:12, Albert
Another +1.
Cheers,
Lars
> On 18 Sep 2020, at 10:52, Joerg Bornemann wrote:
>
> On 9/17/20 11:37 AM, André Hartmann wrote:
>
>> I like to propose Alex Trotsenko as approver.
>
> +1 from me as well
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>
> On 18 Sep 2020, at 11:23, Albert Astals Cid via Development
> wrote:
>
> El divendres, 18 de setembre de 2020, a les 11:00:23 CEST, André Somers va
> escriure:
>> On 18-09-2020 09:12, Albert Astals Cid via Development wrote:
>>> El divendres, 18 de setembre de 2020, a les 2:54:53 CEST,
El divendres, 18 de setembre de 2020, a les 11:00:23 CEST, André Somers va
escriure:
> On 18-09-2020 09:12, Albert Astals Cid via Development wrote:
> > El divendres, 18 de setembre de 2020, a les 2:54:53 CEST, Thiago Macieira
> > va>
> > escriure:
> >> On Thursday, 17 September 2020 16:15:47
On Freitag, 18. September 2020 10:28:06 CEST Albert Astals Cid via Development
wrote:
> El divendres, 18 de setembre de 2020, a les 10:22:16 CEST, Lars Knoll va
escriure:
> > Sorting and equality are two different things. QVariant has never
> > supported
> > a lessThan operator.
>
> Yes, it has
Il 18/09/20 10:22, Lars Knoll ha scritto:
Sorting and equality are two different things. QVariant has never
supported a lessThan operator.
That's not accurate. Q5Variant has operator<, and Q5MetaType allowed to
register comparators (op== and op<) for a user type. I don't know how
much
On 18-09-2020 09:12, Albert Astals Cid via Development wrote:
El divendres, 18 de setembre de 2020, a les 2:54:53 CEST, Thiago Macieira va
escriure:
On Thursday, 17 September 2020 16:15:47 PDT Bernhard Lindner wrote:
Hi!
There was a discussion about the decision to deprecate (remove?)
El divendres, 18 de setembre de 2020, a les 10:37:36 CEST, Lars Knoll va
escriure:
> > On 18 Sep 2020, at 10:28, Albert Astals Cid
> > wrote:
> > El divendres, 18 de setembre de 2020, a les 10:22:16 CEST, Lars Knoll va
> > escriure:
>
> >> Sorting and equality are two different things.
On 9/17/20 11:37 AM, André Hartmann wrote:
I like to propose Alex Trotsenko as approver.
+1 from me as well
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18.09.2020, 11:40, "Lars Knoll" :
>> On 18 Sep 2020, at 10:28, Albert Astals Cid
>> wrote:
>>
>> El divendres, 18 de setembre de 2020, a les 10:22:16 CEST, Lars Knoll va
>> escriure:
>>> Sorting and equality are two different things. QVariant has never supported
>>> a lessThan operator.
Il 18/09/20 02:54, Thiago Macieira ha scritto:
What's been removed is the conversion. Aside from the numeric types, comparing
two variants of different types will always result in false. If you want to
compare across types, convert one to the other's type or to a common third
type. You know what
> On 18 Sep 2020, at 10:28, Albert Astals Cid
> wrote:
>
> El divendres, 18 de setembre de 2020, a les 10:22:16 CEST, Lars Knoll va
> escriure:
>> Sorting and equality are two different things. QVariant has never supported
>> a lessThan operator.
>
> Yes, it has
>
>
El divendres, 18 de setembre de 2020, a les 10:22:16 CEST, Lars Knoll va
escriure:
> Sorting and equality are two different things. QVariant has never supported
> a lessThan operator.
Yes, it has
https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/kernel/qvariant.h?h=5.15#n467
Cheers,
On 18 Sep 2020, at 09:12, Albert Astals Cid via Development
mailto:development@qt-project.org>> wrote:
El divendres, 18 de setembre de 2020, a les 2:54:53 CEST, Thiago Macieira va
escriure:
On Thursday, 17 September 2020 16:15:47 PDT Bernhard Lindner wrote:
Hi!
There was a discussion about
On Freitag, 18. September 2020 02:54:53 CEST Thiago Macieira wrote:
> On Thursday, 17 September 2020 16:15:47 PDT Bernhard Lindner wrote:
> > Hi!
> >
> > There was a discussion about the decision to deprecate (remove?) QVariant
> > comparison (<,>) in Qt6 completely.
> >
> > Has anything changed
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El divendres, 18 de setembre de 2020, a les 2:54:53 CEST, Thiago Macieira va
escriure:
> On Thursday, 17 September 2020 16:15:47 PDT Bernhard Lindner wrote:
> > Hi!
> >
> > There was a discussion about the decision to deprecate (remove?) QVariant
> > comparison (<,>) in Qt6 completely.
> >
> >
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