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From: robert_dewar@my-dejanews.com
Subject: Re: Alternate to Unchecked_Conversion - Portable?
Date: 1999/02/25
Date: 1999-02-25T00:00:00+00:00	[thread overview]
Message-ID: <7b2l6s$vu3$1@nnrp1.dejanews.com> (raw)
In-Reply-To: 36d3ba85.713118@nntp.concentric.net

In article <36d3ba85.713118@nntp.concentric.net>,
  cjrgreen@concentric.net (Christopher Green) wrote:
> In
> this case, it is natural enough, though not fully
> portable, to declare an Ada array of the actual
> size and map it onto the C array with an address
> clause.

In Ada 83, this is ALWAYS an incorrect approach, because
it is erroneous, which means the compiler need make no
attempt at all (e.g. in suppressing optimziation) to
make this "work".

> In Ada 95, the package Interfaces.C.Pointers is
> a better solution to this kind of problem.

If you look at the implementation of this package, it
will almost certainly use unchecked conversion on pointers!

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  reply	other threads:[~1999-02-25  0:00 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-02-21  0:00 Alternate to Unchecked_Conversion - Portable? Steve Doiel
1999-02-21  0:00 ` Matthew Heaney
1999-02-21  0:00 ` Steve Quinlan
1999-02-22  0:00   ` robert_dewar
1999-02-22  0:00 ` robert_dewar
1999-02-22  0:00   ` Samuel Mize
1999-02-22  0:00 ` Christopher Green
1999-02-23  0:00   ` Matthew Heaney
1999-02-23  0:00     ` Samuel Mize
1999-02-24  0:00     ` robert_dewar
1999-02-25  0:00       ` Nick Roberts
1999-02-25  0:00         ` robert_dewar
1999-02-26  0:00           ` Nick Roberts
1999-02-26  0:00             ` Matthew Heaney
1999-02-27  0:00               ` Nick Roberts
1999-02-24  0:00   ` robert_dewar
1999-02-23  0:00     ` Christopher Green
1999-02-25  0:00       ` robert_dewar [this message]
1999-02-24  0:00         ` Christopher Green
1999-02-25  0:00           ` robert_dewar
1999-02-25  0:00             ` dennison
1999-02-25  0:00               ` Christopher Green
1999-02-26  0:00                 ` robert_dewar
1999-02-26  0:00                   ` Christopher Green
1999-03-01  0:00                     ` Nick Roberts
1999-03-01  0:00                       ` dewar
1999-03-01  0:00                         ` Nick Roberts
1999-02-26  0:00                 ` Tom Moran
1999-02-26  0:00                   ` robert_dewar
1999-02-26  0:00             ` Robert A Duff
1999-02-28  0:00               ` robert_dewar
1999-02-23  0:00     ` Christopher Green
1999-02-25  0:00       ` robert_dewar
1999-02-24  0:00         ` Christopher Green
1999-02-25  0:00           ` robert_dewar
1999-02-26  0:00             ` Dale Stanbrough
1999-02-26  0:00               ` Robert A Duff
1999-02-22  0:00 ` Tom Moran
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