[Interest] QVariant compare operator

[Matthew Woehlke]

On 19/04/2020 08.23, André Pönitz wrote:
> QVariant(TypeA) and QVariant(TypeB) can be ordered for different TypeA and
> TypeB based e.g. on alphabetical order of their .typeName().
> 
> If wanted, this can be refined to make e.g. all integral types comparable.

No:

   int{5} <=> JsonObject{...} => lesser
   int{5} <=> long{3} => greater
   long{3} <=> JsonObject{...} => greater

...oops.

You'd have to make all integral types sort before (or after) all other 
types, but then you're back to not having a reliable ordering by type name.

It makes *much* more sense that some comparisons just come back 
"incomparable".

-- 
Matthew