Re: [boost] Re: new compile-time dimensional analysis and unitlibrary

From: Phil Richards (news_at_[hidden])
Date: 2003-12-12 08:29:57

On 2003-12-12, Aleksey Gurtovoy <agurtovoy_at_[hidden]> wrote:
>  Phil Richards wrote:
> > I have to say that the lack of documentation was the thing that
> > stopped me from using the MPL in the physical quantities library
> > I started writing as a progression of what we use on a (real) project.
>  Hmm, have you looked here -
>  http://www.boost.org/libs/mpl/doc/ref/Table_of_Contents.html?

Yes.

>  All algorithms and in particular [the current version of] 'transform' are
>  pretty well documented -
>  http://www.boost.org/libs/mpl/doc/ref/Algorithms.html.

Well, yes.  It documents:

    template<typename Sequence, typename Op>
    struct transform { ... };

And Dave Abrahams ACCU slides use:

    template <class Sequence1, class Sequence2, class BinaryOp>
    struct transform;

I tried some basic things with zip_view and transform_view
but quickly hit a point where I couldn't work out how to get
things to work together - after a few hours of reading
the existing documentation and hunting header files, I went
for the dumb approach.  And then I quickly (within half an
hour) had got a working (but ugly macro-based) solution
which didn't use the MPL.  I would still like to get to an
MPL solution as a comparison, though.  I suspect it will look
a lot prettier.  It's just a matter of time...

phil
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