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From "Eric Lemings" <Eric.Lemi...@roguewave.com>
Subject RE: [STDCXX-905] 22.locale.synopsis link error on Solaris platforms
Date Wed, 07 May 2008 21:53:39 GMT
 

> -----Original Message-----
> From: Eric Lemings 
> Sent: Wednesday, May 07, 2008 3:50 PM
> To: 'dev@stdcxx.apache.org'
> Subject: RE: [STDCXX-905] 22.locale.synopsis link error on 
> Solaris platforms
> 
>  
> 
> > -----Original Message-----
> > From: Martin Sebor [mailto:msebor@gmail.com] On Behalf Of 
> Martin Sebor
> > Sent: Thursday, May 01, 2008 2:30 PM
> > To: dev@stdcxx.apache.org
> > Subject: Re: [STDCXX-905] 22.locale.synopsis link error on 
> > Solaris platforms
> > 
> ...
> > 
> > What we would need to do if we really wanted to exercise the
> > template is define a dummy explicit specialization of the
> > collate facet on a user-defined (non-fundamental) type such
> > as UserChar from rw_char.h and instantiate the template
> > operator on it. E.g., something like:
> > 
> >    namespace std {
> >      template <>
> >      struct collate<UserChar>: locale::facet {
> >          /* define all members as no-ops */
> >      };
> >    }
> > 
> >    // exercise a specialization other than on the default
> >    // char types
> >    typedef StringTypes<UserChar>::string_type UserString;
> > 
> >    MEMFUN (bool, operator(), (const UserString&, const 
> > UserString&) const);
> > 
> > Martin
> > 
> 
> I infer from this that if developers need collate facets for 
> user-defined character types then they are required to define 
> their own specializations for these types.  That right?

If that's the case, adding collate specializations with no-op
members for a user-defined ctype doesn't really test anything
in the library and is therefore useless in which case I should
just remove the corresponding test cases.  Or does it actually
test something?

Brad.

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