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From: Mats.Weber@matrix.ch (Mats Weber)
Subject: Re: Flags in Ada?
Message-ID: <Mats.Weber-0211941506100001@mlma11.matrix.ch>
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References: <38psul$nsb@news.delphi.com> <38qv61$ff4@gnat.cs.nyu.edu>
 <392udo$jt4@watnews1.watson.ibm.com>
Date: Wed, 2 Nov 1994 14:06:10 GMT
Date: 1994-11-02T14:06:10+00:00
List-Id: <comp.lang.ada>

In article <392udo$jt4@watnews1.watson.ibm.com>, ncohen@watson.ibm.com wrote:
> |> P.S. in case you are wondering, 'Img is a GNAT implementation defined
> |> attribute that can be applied to objects as well as being used with a
> |> subtype name like Image. The output differs only in that the darned blank
> |> is omitted for positive values. Eventually we want to extend Img to handle
> |> various types, e.g. arrays, but this is not done yet.

I think that adding implementation-specific attributes is a VERY bad idea
even, as in this case, they are useful.

The problem is that they don't need to be imported using a with clause,
and it is impossible to assess the portability of code written for that
compiler.