Re: [Boost-maint] [spirit] How to detect Spirit.Qi expressions?

Subject: Re: [Boost-maint] [spirit] How to detect Spirit.Qi expressions?
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2014-03-30 08:52:01

On Sunday 30 March 2014 16:47:33 you wrote:
> Hi,
> 
> Is there a way to detect at compile time that a certain type is a
> Boost.Spirit.Qi parser? That includes template expressions and grammars.
> Basically, I want to detect if qi::parse(b, e, expr) would be a sensible
> thing to do.
> 
> I tried this:
> 
>   boost::is_same<
>     typename proto::domain_of< ExpressionT >::type,
>     spirit::qi::domain
> 
> 
> But domain_of returns default_domain for Boost.Spirit.Qi template
> expressions.

Sorry, wrong list.