[gme-users] Fwd: RE: [udm-users] BON2 question

[Zoltan Molnar]

Hi,

I think the second way:
GRATISII_BON::configuration( currentFCO) should work, but please be aware
that the casting can be done among wrapper classes (those without "impl")
and not the implementation classes (those with "impl").

I presume that this is the source of the error you get.
If this does not solve your problem let me know,

Br, Zoli

> >> -----Original Message-----
> >> From: Endre Magyari
> >> Sent: Sunday, June 06, 2004 4:00 PM
> >> To: udm-users
> >> Subject: [udm-users] BON2 question
> >>
> >>
> >>
> >> Dear All,
> >>
> >>
> >> 	I happily found out that there is a BON extender interpreter,
> > which
> >> generates domain specific API for me.
> >>
> >> 	Generating the classes went fine, but when I wanted to 
> check and 
> >> cast the current FCO to a certain type, I ran into an error.
> >>
> >> 	The documentations suggested that this should work
> >>
> >> 	const GRATISII_BON::configurationImpl & config = currentFCO;
> >>
> >> 	and this also should work:
> >>
> >> 	if ( GRATISII_BON::configurationImpl(currentFCO))
> >> 	{
> >> 	//....
> >> 	}
> >>
> >>
> >> 	However both syntaxes result in compiler error:
> >>
> >> c:\temp\gratis\component\bon2component.cpp(111) : error C2440: 
> >> 'initializing' : cannot convert from 'class BON::FCO' to 
> 'const class 
> >> GRATISII_BON::configurationImpl &'
> >>          Reason: cannot convert from 'class BON::FCO' to 
> 'const class 
> >> GRATISII_BON::configurationImpl'
> >>          No constructor could take the source type, or constructor 
> >> overload resolution was ambiguous
> >>
> >>
> >> 	What is the solution in BON2 to check the type of an FCO and
> > then
> >> cast it
> >> to that type?
> >>
> >> Thanks,
> >> Endre.