re: winscard: add pcsc-lite helpers for upcoming implementation

[Mounir IDRASSI]

The code is definitely cleaner with all your suggestions. I'm applying
them now.

Mounir IDRASSI
IDRIX - Cryptography and IT Security Experts
http://www.idrix.fr
> James wrote:
> > This would be a lot cleaner as:
> >
> > if (!(liteSCardEstablishContext = (SCardEstablishContextPtr)
> > wine_dlsym(g_pcscliteHandle,"SCardEstablishContext",szErr,sizeof(szErr)))
> > {
> >    ERR("Failed to get SCardEstablishContext from pcsclite library. Error
> > = %s\n",szErr);
> >    goto error;
> > }
>
> I think in C you can skip the cast from void *, can't you?  e.g.
>
> liteSCardEstablishContext =
> wine_dlsym(g_pcscliteHandle,"SCardEstablishContext",szErr,sizeof(szErr));