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From: Brian Rogoff <bpr@shellx.best.com>
Subject: Re: The Red Language
Date: 1997/09/16
Date: 1997-09-16T00:00:00+00:00	[thread overview]
Message-ID: <Pine.SGI.3.95.970916190053.19184D-100000@shellx.best.com> (raw)
In-Reply-To: EGIJ8B.MyM@world.std.com


On Sun, 14 Sep 1997, Robert A Duff wrote:
> In article <mheaney-ya023680001309970036280001@news.ni.net>,
> Matthew Heaney <mheaney@ni.net> wrote:
> Me too.
> 
> >...Why do so many language designers think less of
> >function return types?
> 
> Perhaps because it's harder to implement.  In C++, you can do overload
> resolution in a single bottom up pass.  Start at the leaves of the
> expression, and propagate the type of each expression up.  In Ada, you
> need to propagate *sets* of types (or sets of interpretations, or some
> such) up the tree, and then you have to do a second (top down) pass to
> propagate the information back to the leaves.

Is this second pass strictly necessary? I seem to remember reading that it 
is possible to do overload resolution in one pass in Ada.

-- Brian






  reply	other threads:[~1997-09-16  0:00 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <340E2DC5.25D7@worldnet.att.net>
     [not found] ` <340ebdaf.230366903@news.mindspring.com>
     [not found]   ` <340ED5D8.2DEF6D3@ux4.sp.cs.cmu.edu>
1997-09-04  0:00     ` The Red Language Robert Munck
1997-09-07  0:00       ` Robert Dewar
1997-09-08  0:00         ` Richard Kenner
1997-09-12  0:00           ` David Wheeler
1997-09-12  0:00             ` Robert A Duff
     [not found]     ` <199709051335.PAA25952@basement.replay.com>
1997-09-05  0:00       ` Dean F. Sutherland
1997-09-08  0:00         ` Robert A Duff
1997-09-09  0:00           ` Arthur Evans Jr
     [not found]             ` <dewar.873953300@merv>
1997-09-11  0:00               ` Robert Dewar
1997-09-11  0:00                 ` Dean F. Sutherland
1997-09-12  0:00                   ` Robert A Duff
1997-09-11  0:00                 ` Arthur Evans Jr
1997-09-12  0:00                   ` Robert Dewar
1997-09-12  0:00                   ` Robert A Duff
1997-09-07  0:00 ` Robert Dewar
1997-09-08  0:00   ` Tucker Taft
1997-09-12  0:00 ` Robert A Duff
1997-09-12  0:00   ` Michael & Amy Hartsough
1997-09-13  0:00   ` Matthew Heaney
1997-09-14  0:00     ` Robert A Duff
1997-09-16  0:00       ` Brian Rogoff [this message]
1997-09-18  0:00         ` Robert Dewar
1997-09-18  0:00           ` Brian Rogoff
1997-09-18  0:00         ` Robert Dewar
1997-09-18  0:00           ` Robert A Duff
1997-09-20  0:00             ` Robert Dewar
1997-09-22  0:00               ` Robert A Duff
1997-09-18  0:00         ` Robert A Duff
1997-09-18  0:00           ` Overload Resolution in Ada (Re: The Red Language) Brian Rogoff
1997-09-19  0:00             ` Robert A Duff
1997-09-19  0:00               ` Brian Rogoff
1997-09-20  0:00                 ` Robert Dewar
1997-09-19  0:00             ` Robert Dewar
1997-09-19  0:00           ` The Red Language Robert Dewar
1997-09-19  0:00             ` Robert A Duff
1997-09-21  0:00               ` Robert Dewar
1997-09-21  0:00                 ` Algol 68 references (Was Re: The Red Language) Brian Rogoff
1997-09-22  0:00                   ` Mark L. Fussell
1997-09-22  0:00                 ` The Red Language Richard Kenner
1997-09-22  0:00                 ` Chris Morgan
1997-09-22  0:00                 ` Richard A. O'Keefe
1997-09-25  0:00                   ` Bruce Link
1997-09-30  0:00               ` Charles Lindsey
1997-10-03  0:00                 ` Robert I. Eachus
1997-09-19  0:00             ` Brian Rogoff
1997-09-16  0:00   ` Brian Rogoff
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