Re: [Boost-users] [pre-processor ] help needed

From: Ovanes Markarian (om_boost_at_[hidden])
Date: 2008-01-29 04:40:57

Oh, I got it... Sorry again for bothering.

paranthesized_type is a type and the construct

paranthesized_type (SomeParam)

is the function type which expects a function, which returns
paranthesized_type and receives SomeParam as input parameter. Steven this is
a great idea! Many thanks!

This solution will defenetely help me solving my problem!

Ovanes

On Jan 29, 2008 10:24 AM, Ovanes Markarian <om_boost_at_[hidden]> wrote:

> Steven,
>
> one additional question. In the second solution
>
> paranthesized_type is a function type, which is passed to the temple? If
> so, then I need to declare somewhere an overload. Isn't it so?
>
>
>
> Thanks,
> Ovanes
>
>
>
> There are a couple of ways to do it.  You can make each element of the
> > > Seq to be itself a seq
> > > and then call BOOST_PP_SEQ_ENUM on the inside:
> > >
> > > ((X1))  ((X2))  ((some_other_template<T1)(T2>))
> > >
> > > Another way is to use template metaprogramming
> > >
> > > (X1)(X2)(parenthesize_type(wrap<some_other_template<T1, T2>>))
> > >
> > > template<class T>
> > > struct unparenthesize { typedef T type; };
> > >
> > > template<class T>
> > > struct unparenthesize<parenthesized_type(wrap<T>)> { typedef T type;
> > > };
> > >
> > > In Christ,
> > > Steven Watanabe
> > >
> > > _______________________________________________
> > > Boost-users mailing list
> > > Boost-users_at_[hidden]
> > > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> > >
> >
> >
>