Re: [Boost-users] [mpl] making an array of sizes given a type list

From: Robert Dailey (rcdailey_at_[hidden])
Date: 2007-11-16 12:26:58

Bah, the type of the 'sizes' array is wrong, but you get the basic idea...

On Nov 16, 2007 11:25 AM, Robert Dailey <rcdailey_at_[hidden]> wrote:

> Hey clown! Try what I have below.
>
>
> //=========================================================================================
> #include <boost/mpl/vector.hpp>
> #include <boost/mpl/at.hpp>
>
> void MPLVectorTest()
> {
>     using namespace boost::mpl;
>
>     typedef vector<float,double,char,short,long> MixedVector;
>
>     static const std::size_t sizes[] =
>     {
>         sizeof( at_c<MixedVector, 0>::type ),
>         sizeof( at_c<MixedVector, 1>::type ),
>         sizeof( at_c<MixedVector, 2>::type ),
>         sizeof( at_c<MixedVector, 3>::type ),
>         sizeof( at_c<MixedVector, 4>::type )
>     };
>
> }
>
> On Nov 16, 2007 12:37 AM, Michael Marcin <mmarcin_at_[hidden]>
> wrote:
>
> > Given a MPL Random Access Container (typename Types) I want to make a
> > static const std::size_t array which contains the sizeof each type in
> > Types.
> >
> > How can I do this?
> >
> >
> > Thanks,
> >
> > Michael Marcin
> >
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> > Boost-users_at_[hidden]
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> >
>
>