On 20/04/2020 12.21, André Pönitz wrote:
On Mon, Apr 20, 2020 at 10:04:38AM -0400, Matthew Woehlke wrote:
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.
"make comparable" means lumping them into a common "type", say
"@integral", with values covering the union set of the values
of the original type.
...and now your rule for heterogeneous comparisons ***isn't***
'according to the type name'. It's 'according to the type name, *except*
<list of exceptions>'. Yuck.
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.
No.
Really? Please explain how this is *not* the case.
--
Matthew
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