From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Reading a line of arbitrary length
Date: 1997/02/18
Date: 1997-02-18T00:00:00+00:00 [thread overview]
Message-ID: <dewar.856305993@merv> (raw)
In-Reply-To: JSA.97Feb16144316@alexandria
Jon said
<<That's impressive. Too bad it won't be portable. :>>
As I mentioned before, our goal here is maximum functionality for GNAT
users. The unfortunate thing is the restrictions on the use of Access
being applied to nested procedures. These restrictions were considered
necessary during the design phase of Ada 95, to make it more practical
for compilers using displays (notably Alsys and RR) to implement access
to procedure.
For a compiler that uses static links, there is really no need to have
these restrictions, and that is why GNAT provides the attribute
Unrestricted_Access, which *can* be freely applied to procedures.
The SPITBOL pattern matching stuff relies significantly on this
attribute, both at the implementation level and at the usage level.
The other important aspect of the implementation is some intimate
knowledge of the way Unbounded_String's are implemented in GNAT. This
is an efficiency issue, but a pretty important one!
Robert Dewar
Ada Core Technologies
next prev parent reply other threads:[~1997-02-18 0:00 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-02-12 0:00 Reading a line of arbitrary length Thomas Koenig
1997-02-12 0:00 ` David C. Hoos, Sr.
1997-02-13 0:00 ` Jeff Carter
1997-02-13 0:00 ` Ted Dennison
1997-02-13 0:00 ` Larry Kilgallen
1997-02-13 0:00 ` Geert Bosch
1997-02-13 0:00 ` Rex Reges
1997-02-15 0:00 ` Matthew Heaney
1997-02-19 0:00 ` Jean-Etienne Doucet
1997-02-21 0:00 ` Mats Weber
1997-02-22 0:00 ` Robert Dewar
1997-02-24 0:00 ` Robert Dewar
1997-02-12 0:00 ` Robert Dewar
1997-02-13 0:00 ` Rex Reges
[not found] ` <dewar.855848896@merv>
[not found] ` <33037A74.44AF@mds.lmco.com>
1997-02-14 0:00 ` Mats Weber
1997-02-15 0:00 ` Robert Dewar
1997-02-17 0:00 ` Mats Weber
1997-02-17 0:00 ` Robert Dewar
[not found] ` <dewar.855929857@merv>
1997-02-14 0:00 ` Gene Ouye
1997-02-15 0:00 ` Robert Dewar
1997-02-15 0:00 ` Brian Rogoff
1997-02-15 0:00 ` Robert Dewar
1997-02-16 0:00 ` Brian Rogoff
1997-02-17 0:00 ` Robert Dewar
1997-02-14 0:00 ` Rex Reges
[not found] ` <dsmith-1302971702290001@dsmith.clark.net>
[not found] ` <33047186.463F@mds.lmco.com>
1997-02-14 0:00 ` Robert Dewar
1997-02-14 0:00 ` Mats Weber
1997-02-16 0:00 ` Jon S Anthony
1997-02-18 0:00 ` Robert Dewar [this message]
1997-02-22 0:00 ` Jon S Anthony
1997-02-21 0:00 ` Brian Rogoff
1997-02-22 0:00 ` Robert Dewar
1997-02-22 0:00 ` Brian Rogoff
1997-02-23 0:00 ` Robert Dewar
1997-02-25 0:00 ` Jon S Anthony
1997-02-26 0:00 ` Robert Dewar
1997-02-27 0:00 ` Jon S Anthony
1997-03-02 0:00 ` Robert Dewar
1997-03-03 0:00 ` Fergus Henderson
1997-03-03 0:00 ` Robert Dewar
1997-03-03 0:00 ` Larry Kilgallen
1997-03-04 0:00 ` Fergus Henderson
1997-03-05 0:00 ` Jon S Anthony
1997-03-02 0:00 ` Robert Dewar
1997-03-03 0:00 ` Jon S Anthony
1997-03-03 0:00 ` Jon S Anthony
1997-03-03 0:00 ` Jon S Anthony
1997-03-03 0:00 ` Robert Dewar
1997-03-04 0:00 ` Thomas Koenig
1997-03-05 0:00 ` Larry Kilgallen
1997-03-06 0:00 ` Robert Dewar
1997-03-06 0:00 ` Robert Dewar
1997-03-05 0:00 ` Jon S Anthony
1997-03-06 0:00 ` Robert A Duff
1997-03-06 0:00 ` Robert Dewar
[not found] ` <dewar.857447653@m <JSA.97Mar4154951@alexandria>
1997-03-05 0:00 ` Robert A Duff
1997-03-03 0:00 ` Jon S Anthony
1997-03-03 0:00 ` Robert Dewar
1997-03-04 0:00 ` Jon S Anthony
1997-03-05 0:00 ` Larry Kilgallen
1997-03-06 0:00 ` Fergus Henderson
1997-03-06 0:00 ` Really more GC talk (was: Reading a line of arbitrary length) Larry Kilgallen
1997-03-11 0:00 ` Fergus Henderson
1997-03-11 0:00 ` Robert Dewar
1997-03-12 0:00 ` Fergus Henderson
1997-03-04 0:00 ` Reading a line of arbitrary length Jon S Anthony
1997-03-05 0:00 ` Jon S Anthony
1997-02-16 0:00 ` Matthew Heaney
1997-02-16 0:00 ` Robert Dewar
1997-02-16 0:00 ` Matthew Heaney
1997-02-17 0:00 ` Robert Dewar
1997-02-25 0:00 ` Jon S Anthony
1997-03-04 0:00 ` Fergus Henderson
1997-03-05 0:00 ` Richard A. O'Keefe
1997-03-06 0:00 ` Fergus Henderson
1997-03-06 0:00 ` Robert Dewar
1997-03-11 0:00 ` Fergus Henderson
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