Re: [Boost-users] How to I specify boost::fusion::vector<something> as the type of an argument?

From: Roman Perepelitsa (roman.perepelitsa_at_[hidden])
Date: 2008-07-15 05:43:20

Peng Yu <pengyu.ut <at> gmail.com> writes:
> 
> Hi,
> 
> template <typename T, typename R>
> class A;
> 
> I would like a template function, whose argument should be of the type like.
> 
> boost::fusion::vector<A<T, R1>, A<T, R2>,...>

I would use something like this:

template <class T>
enable_if<is_vector_of_A_T_R<T> >::type foo(const T& arg)
{
  ...
}

Where is_vector_of_A_T_R<T> is a metafunction, that
returns true iif T is a fusion::vector of desired
structure.

Roman Perepelitsa.