Re: [Boost-users] [tr1::tuple] Re: [mpl] at_c type compiler error

From: Chris Weed (chrisweed_at_[hidden])
Date: 2007-10-22 13:19:42

On 10/20/07, Daniel James <daniel_james_at_[hidden]> wrote:
> Chris Weed wrote:
> >   {
> >     return t.get<0>();
> >   }
>
> Change that to:
>
>     {
>       return t.template get<0>();
>     }
>
> Chris Weed wrote:
> > I was mistaken about what was generating the compile error. I think it
> > had to do with there not being a get member function in
> > boost::tuple<int> This confused me since I thought I had used that in
> > the past, and the doc's suggested it worked.
> > Chris
>
> Actually, there is a get member. The problem was that the compiler
> didn't know the type of t when compiling the function (because t is a
> template dependent name), so you need to tell it that 'get' is a
> template method. Because it didn't know that, it assumed the angle
> brackets were actually 'less than' and 'greater than' symbols, leading
> to the confusing error messages.
>

Thanks for the explanation. Now I see the problem.
Chris