[Qt-interest] typedef on the same underlying type and Q_REGISTER_METATYPE

[MARTIN Pierre]

> struct Ratio { qreal data; };
> struct PositiveRatio { qreal data; };
> struct NegativeRatio { qreal data; };
> Q_DECLARE_TYPEINFO(Ratio, Q_MOVABLE_TYPE)
> Q_DECLARE_METATYPE(Ratio)
> Q_DECLARE_TYPEINFO...
Appologies, i have found the informations i was looking for about Q_DECLARE_TYPEINFO... However i don't understand how one could register a new POD datatype for instance let's say compatible with assignment, +=, -=, /=, etc without redefining either a template class wrapping it, or something similar...

Anyone has any kind of information about registering aliased types as new types with an independent type ID?

Thanks,
Pierre.