Re: [Boost-users] Please help with enable_if problem

Subject: Re: [Boost-users] Please help with enable_if problem
From: John Dlugosz (JDlugosz_at_[hidden])
Date: 2010-04-14 12:07:39

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] [mailto:boost-users-
> bounces_at_[hidden]] On Behalf Of Steven Watanabe
> Sent: Tuesday, April 13, 2010 8:06 PM
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] Please help with enable_if problem
> 
> AMDG
> 
> John Dlugosz wrote:
> > I'm getting tons of this from Microsoft's compiler:
> >
> > 	error C2893: Failed to specialize function template
> 'enable_if<boo...
> >
> 
> Without the actual error message, I'm not sure I can help much.

error C2893: Failed to specialize function template 'enable_if<boost::mpl::and_<std::tr1::is_base_of<chronology::generic_linear_time_ntbase,T>,boost::mpl::or_<chronology::is_dimensional_time<D>,std::tr1::is_same<chronology::duration,D>,std::tr1::is_same<chronology::linear_duration,D>>>,T>::type &chronology::operator +=(T &,const D &)'

> This can't be the real code, because it wouldn't compile
> as a member because it takes two arguments, and wouldn't
> compile as a non-member, because it uses "this."

Ah, yes, the code is wrong.  Normally I'll start to see errors in the body as normal errors once it instantiates.  Changing the line to "return left;" doesn't change the error.

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