| [eigen] Re: ideas about the corner types |
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- To: eigen <eigen@xxxxxxxxxxxxxxxxxxx>
- Subject: [eigen] Re: ideas about the corner types
- From: Benoit Jacob <jacob.benoit.1@xxxxxxxxx>
- Date: Fri, 5 Feb 2010 02:11:44 -0500
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2010/2/5 Benoit Jacob <jacob.benoit.1@xxxxxxxxx>:
> Hi,
>
> 1)
>
> Currently matrix.corner(TopLeft,3,3) takes TopLeft as a runtime
> parameter. This is based around the assumption that the compiler
> resolves this at compile time. In practice that seems to work although
> I only checked GCC. Here's an idea to resolve this at runtime:
I mean at compile time, of course.
> let
> TopLeft be an object of type CornerType<TopLeft_t>, etc.. taking a
> common template CornerType type allows to write the function only
> once, yet have a guarantee that that stuff resolves at compile time.
>
> 2)
>
> Many times we just want the bottom N rows of a matrix. So why not
> introducing Bottom, Top, etc... new corner types. Taking only one size
> parameter instead of 2. That would make that stuff more elegant to use
> in practice, more justified to exist (currently in many cases the
> interest of that seems questionable).
>
> Benoit
>