[Development] Adding support for version number comparisons

[Jake Petroules]

On 2014-05-14, at 04:26 PM, Thiago Macieira <thiago.macieira at intel.com> wrote:

> Em qua 14 maio 2014, às 08:45:28, Keith Gardner escreveu:
>>> Well, if you use a virtual, you'd simply subclass to handle the specific
>>> format for your project.
>> 
>> I haven't thought about using inheritance to simplify the compare but I
>> think that would provide the best compromise.
> 
> I don't want virtuals in this class.
> 
> I could accept a comparator function (e.g., a lambda), but I still think 
> that's overkill.
> 
> QVersion could simply report how many tokens it could parse and then leave it 
> up to the upper layer to deal with the rest of the string.
> -- 
> Thiago Macieira - thiago.macieira (AT) intel.com
>  Software Architect - Intel Open Source Technology Center
> 
> _______________________________________________
> Development mailing list
> Development at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/development


I think the fact that this email thread is already 40 messages long clearly illustrates the need for custom comparators. Let's use a lambda as an optional argument to compare().

We could even export a few default comparator functions from QtCore if deemed necessary.
-- 
Jake Petroules - jake.petroules at petroules.com
Chief Technology Officer - Petroules Corporation