[m-rev.] for review: delete RTTI predicates from std_util

[Ian MacLarty]

On 3/17/06, Zoltan Somogyi <zs at cs.mu.oz.au> wrote:
> On 16-Mar-2006, Ian MacLarty <maclarty at cs.mu.OZ.AU> wrote:
> > I still don't like
> > the idea of breaking user code - even in a "minor" way.
>
> We are trying to minimize the breakage, but we don't want to get into
> trap Microsoft got into with MS-DOS, being too afraid to make changes
> that improve things but also break backward compatibility. Our user base
> is also much more sophisticated. If the NEWS file says where the functionality
> has gone (which I am working on now), they will be ok.
>

All I'm saying is that they should be pragma obsoleted first.  Then
they can be removed in the next release.

> > It could
> > cause quite a bit of frustration, especially if the user doesn't know
> > where to look for the right version.  Obsoleting them first is just
> > good manners in my opinion.
>
> The documentation had comments about them being obsolete already, e.g:
>
>         % Type_info and type_ctor_info are the old names for type_desc and
>         % type_ctor_desc. They should not be used by new software.
>

In that case I withdraw my objection.

Ian.
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