From: dewar@cs.nyu.edu (Robert Dewar)
Subject: Re: C is 'better' than Ada because...
Date: 1996/07/30
Date: 1996-07-30T00:00:00+00:00 [thread overview]
Message-ID: <dewar.838699292@schonberg> (raw)
In-Reply-To: g1u3uqd744.fsf@hotspec.lanl.gov
Sandy said
" The one big advantage C has traditionally had over other
languages is efficient compilation. The reason is that 'C' is one
of the few languages that provides concepts such as register
variables to give hints to the compiler."
This is incorrect. In practice the register declarations are useless to
a modern optimizing compiler, and merely represent an unuseful attempt
to intefere with choices that the compiler can make better anyway. Most
modern C compilers, including gcc, pretty much ignore register declarations
(they cannot be completely ignored, since they introduce some (rather ugly)
semantic restrictions).
An exception to this is the extension in GNU C that allows global variabels
to be placed in registers. Here the programmer can do better than the
compiler, since the compiler does not see the whole program.
next prev parent reply other threads:[~1996-07-30 0:00 UTC|newest]
Thread overview: 272+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-06-19 0:00 C is 'better' than Ada because Alan Brain
1996-06-20 0:00 ` Ron Thompson
1996-06-22 0:00 ` Nasser Abbasi
1996-06-22 0:00 ` David Morton
1996-06-22 0:00 ` Robert Dewar
1996-06-23 0:00 ` The Deviant
1996-06-23 0:00 ` Robert Dewar
1996-06-23 0:00 ` Michael Feldman
1996-06-23 0:00 ` John Winters
1996-06-24 0:00 ` token%/etc/HOSTNAME
1996-06-23 0:00 ` John Winters
1996-06-23 0:00 ` David Morton
1996-06-23 0:00 ` John Winters
1996-06-23 0:00 ` David Morton
1996-06-23 0:00 ` Lawrence Kirby
1996-06-27 0:00 ` ) OH NO "...begs the question..." Ralph Silverman
1996-06-28 0:00 ` Bill Wendling
1996-06-30 0:00 ` C is 'better' than Ada because Nasser Abbasi
1996-06-23 0:00 ` Nasser Abbasi
1996-06-23 0:00 ` Fergus Henderson
1996-06-23 0:00 ` Robert Dewar
1996-06-28 0:00 ` Fergus Henderson
1996-06-29 0:00 ` Kevin D. Quitt
1996-06-29 0:00 ` Robert Dewar
1996-06-30 0:00 ` Fergus Henderson
1996-07-01 0:00 ` Mike Roske
1996-07-01 0:00 ` Robert Dewar
1996-07-02 0:00 ` Ken Garlington
1996-07-03 0:00 ` Kevin D. Quitt
1996-07-04 0:00 ` Ian Ward
1996-07-05 0:00 ` Peter Amey
1996-07-05 0:00 ` Robert Dewar
1996-07-10 0:00 ` James A. Squire
1996-07-15 0:00 ` Oliver Kellogg
1996-07-16 0:00 ` Oliver Kellogg
1996-07-18 0:00 ` Fraser Wilson
1996-07-18 0:00 ` Fergus Henderson
1996-07-19 0:00 ` Keith Thompson
1996-07-17 0:00 ` Robert Dewar
1996-07-11 0:00 ` James A. Squire
1996-07-16 0:00 ` Nasser Abbasi
1996-07-16 0:00 ` Mark A Biggar
1996-07-17 0:00 ` James A. Squire
1996-07-17 0:00 ` Laurent Guerby
1996-07-17 0:00 ` David Emery
1996-07-18 0:00 ` James A. Squire
1996-07-07 0:00 ` Kevin D. Quitt
1996-07-08 0:00 ` Robert Dewar
1996-07-10 0:00 ` John F. Bode
1996-07-11 0:00 ` Mike Roske
1996-07-10 0:00 ` Peter Hermann
1996-07-15 0:00 ` Tim McGuire
1996-07-16 0:00 ` Kevin D. Quitt
1996-07-16 0:00 ` Robert Dewar
1996-07-18 0:00 ` Ken Garlington
1996-07-19 0:00 ` Kevin D. Quitt
1996-07-19 0:00 ` Richard O'Rourke
1996-07-22 0:00 ` Kevin D. Quitt
1996-07-22 0:00 ` Robert Dewar
1996-07-23 0:00 ` Theodore E. Dennison
1996-07-23 0:00 ` Kevin D. Quitt
1996-07-24 0:00 ` Theodore E. Dennison
1996-07-24 0:00 ` Kevin D. Quitt
1996-07-25 0:00 ` Steve Howard
1996-07-25 0:00 ` Alan Brain
1996-07-27 0:00 ` Bob Kitzberger
1996-07-26 0:00 ` Mike Roske
1996-07-25 0:00 ` Fergus Henderson
1996-07-25 0:00 ` Kevin D. Quitt
1996-07-26 0:00 ` Fergus Henderson
1996-07-26 0:00 ` kennedy1
1996-07-23 0:00 ` Tim Behrendsen
1996-07-24 0:00 ` JamesS1889
1996-07-24 0:00 ` Theodore E. Dennison
1996-07-27 0:00 ` Tim Behrendsen
1996-07-29 0:00 ` Ada is 'better' than C because John Herro
1996-07-30 0:00 ` Brian Rogoff
1996-07-30 0:00 ` Adam Beneschan
1996-07-31 0:00 ` Franz Kruse
1996-08-04 0:00 ` Richard Riehle
1996-08-05 0:00 ` Sandy McPherson
1996-08-06 0:00 ` Ken Garlington
1996-08-06 0:00 ` GAFFNEY.BRIAN
1996-08-07 0:00 ` Ken Garlington
1996-08-08 0:00 ` Theodore E. Dennison
1996-08-08 0:00 ` Frank Lipski
1996-08-09 0:00 ` Sandy McPherson
1996-08-15 0:00 ` Mike Stark
1996-08-07 0:00 ` Bob Kitzberger
1996-08-08 0:00 ` Robert Dewar
1996-08-08 0:00 ` Kevin D. Quitt
1996-07-29 0:00 ` C is 'better' than Ada because Bob Kitzberger
1996-07-30 0:00 ` Tim Behrendsen
1996-07-30 0:00 ` Theodore E. Dennison
1996-07-30 0:00 ` Richard A. O'Keefe
1996-07-30 0:00 ` Tim Behrendsen
1996-07-29 0:00 ` Dirk Dickmanns
1996-07-30 0:00 ` Tim Behrendsen
1996-07-31 0:00 ` whiting_ms@corning.com (Matt Whiting)
1996-07-31 0:00 ` Dirk Dickmanns
1996-07-31 0:00 ` Kevin D. Quitt
1996-08-01 0:00 ` Alan Brain
1996-08-02 0:00 ` Kevin D. Quitt
1996-08-05 0:00 ` Byron B. Kauffman
1996-08-15 0:00 ` Mike Roske
1996-08-15 0:00 ` David Shochat
1996-08-16 0:00 ` Ken Garlington
1996-08-16 0:00 ` John Herro
1996-08-16 0:00 ` John Herro
1996-08-16 0:00 ` Jon S Anthony
1996-08-05 0:00 ` Robb Nebbe
1996-08-02 0:00 ` Dirk Dickmanns
1996-07-30 0:00 ` Theodore E. Dennison
1996-08-08 0:00 ` Ada is 'better' than C because William Clodius
1996-08-09 0:00 ` Kevin D. Quitt
1996-08-09 0:00 ` Robert Dewar
1996-08-12 0:00 ` OBryan Anthony H
1996-08-12 0:00 ` Bob Kurtz
1996-08-12 0:00 ` Lawrence Kirby
1996-08-13 0:00 ` Tom Watson
1996-08-14 0:00 ` Robert Dewar
1996-07-29 0:00 ` C is 'better' than Ada because system
1996-07-30 0:00 ` Tim Behrendsen
1996-07-24 0:00 ` Dirk Dickmanns
1996-07-25 0:00 ` Alan Brain
1996-07-18 0:00 ` Bob Gilbert
1996-07-19 0:00 ` Kevin D. Quitt
[not found] ` <4rvr2j$2gb0@info4.rus.uni-s <nhn30yhw6t.fsf@paralysys>
1996-07-18 0:00 ` Robert Dewar
1996-07-18 0:00 ` Kevin D. Quitt
1996-07-26 0:00 ` Richard Riehle
1996-07-08 0:00 ` C is 'better' than Ada ... NOT!! Hugh Dunne
1996-07-08 0:00 ` Kevin D. Quitt
1996-07-12 0:00 ` C is 'better' than Ada because John F. Bode
1996-07-15 0:00 ` Sandy McPherson
1996-07-18 0:00 ` Robert Dewar
1996-07-19 0:00 ` Theodore E. Dennison
1996-07-19 0:00 ` Ken Garlington
1996-07-20 0:00 ` Michael Feldman
1996-07-21 0:00 ` Alfonso Urdaneta
1996-07-21 0:00 ` Robert Dewar
1996-07-22 0:00 ` Kevin D. Quitt
1996-07-22 0:00 ` Robert Dewar
1996-07-26 0:00 ` Richard Riehle
[not found] ` <31f3c52e.238719470 <Pine.GSO.3.92.960726122347.25896E-100000@nunic.nu.edu>
1996-07-31 0:00 ` Darrin Smith
1996-07-31 0:00 ` Fergus Henderson
1996-08-01 0:00 ` Jerry van Dijk
1996-08-06 0:00 ` Kirk Bradley
1996-08-09 0:00 ` Richard Riehle
1996-08-10 0:00 ` Craig Franck
1996-08-16 0:00 ` Richard Riehle
1996-08-18 0:00 ` Craig Franck
[not found] ` <Pine.GSO.3.92.960816102000. <4v5pis$4h1@mtinsc01-mgt.ops.worldnet.att.net>
1996-08-18 0:00 ` David Weller
1996-08-15 0:00 ` Mike Stark
1996-08-02 0:00 ` Robert Dewar
[not found] ` <31f3c52e.238719470 <4uj42h$j06@mtinsc01-mgt.ops.worldnet.att.net>
1996-08-11 0:00 ` Doug & Rose Miller
1996-08-11 0:00 ` Craig Franck
1996-08-11 0:00 ` Doug & Rose Miller
1996-08-12 0:00 ` Craig Franck
1996-08-16 0:00 ` nasser
1996-08-11 0:00 ` Jon S Anthony
[not found] ` <31f3c52e.238719470 <4v5pis$4h1@mtinsc01-mgt.ops.worldnet.att.net>
1996-08-18 0:00 ` Doug & Rose Miller
1996-08-20 0:00 ` Craig Franck
1996-07-23 0:00 ` Ken Garlington
1996-07-27 0:00 ` Tim Behrendsen
1996-07-27 0:00 ` Lawrence Kirby
1996-07-29 0:00 ` Ian Ward
1996-07-30 0:00 ` Bob Cousins
1996-07-30 0:00 ` Robert Dewar
1996-09-05 0:00 ` Bob Cousins
1996-08-13 0:00 ` Jon S Anthony
1996-08-14 0:00 ` Craig Franck
1996-08-28 0:00 ` Van Snyder
1996-08-14 0:00 ` Jon S Anthony
1996-08-15 0:00 ` Craig Franck
1996-08-15 0:00 ` Joe Gwinn
1996-08-16 0:00 ` Don Nelson
1996-08-19 0:00 ` Joe Gwinn
1996-08-19 0:00 ` Ken Garlington
1996-08-28 0:00 ` Van Snyder
1996-08-30 0:00 ` Norman H. Cohen
1996-08-15 0:00 ` Jon S Anthony
1996-08-20 0:00 ` nasser
1996-08-15 0:00 ` Stefan 'Stetson' Skoglund
1996-07-19 0:00 ` Theodore E. Dennison
1996-08-15 0:00 ` David Weller
1996-08-15 0:00 ` William C Brennan
1996-07-08 0:00 ` C is 'better' than Ada ... NOT!! Frank Manning
1996-07-08 0:00 ` C is 'better' than Ada because Ian Ward
1996-07-18 0:00 ` Hamilton Link
1996-07-19 0:00 ` Kevin D. Quitt
1996-07-10 0:00 ` Stephen M O'Shaughnessy
1996-07-10 0:00 ` Peter Seebach
1996-07-18 0:00 ` Brian Rogoff
1996-07-19 0:00 ` James A. Squire
1996-07-29 0:00 ` William Clodius
1996-07-30 0:00 ` Robert Dewar [this message]
1996-07-31 0:00 ` Tim Behrendsen
[not found] ` <9608020139.AA29105@pulsar.telesoft>
1996-08-02 0:00 ` Tim Behrendsen
1996-08-05 0:00 ` Kevin D. Quitt
1996-08-06 0:00 ` is Ada 'better' than C? (Was: Re: C is 'better' than Ada because...) Antoine Leca
1996-08-06 0:00 ` Kevin D. Quitt
1996-07-30 0:00 ` C is 'better' than Ada because Richard A. O'Keefe
1996-07-30 0:00 ` Tim Behrendsen
1996-08-01 0:00 ` Byron B. Kauffman
1996-08-01 0:00 ` Ian Ward
1996-07-31 0:00 ` Ralph Silverman
1996-07-30 0:00 ` William Clodius
1996-08-01 0:00 ` Tim Behrendsen
1996-07-30 0:00 ` Robert I. Eachus
1996-08-01 0:00 ` David Wheeler
1996-08-01 0:00 ` Olivier Devuns @pulsar
1996-08-11 0:00 ` Ada 95 is a FREE language (was: C is 'better' than Ada because...) Laurent Guerby
1996-08-11 0:00 ` C is 'better' than Ada because Jon S Anthony
1996-08-12 0:00 ` Craig Franck
1996-08-12 0:00 ` James A. Squire
1996-08-12 0:00 ` Craig Franck
1996-08-12 0:00 ` John Howard
1996-08-13 0:00 ` Craig Franck
1996-08-13 0:00 ` Ken Garlington
1996-08-14 0:00 ` Craig Franck
1996-08-14 0:00 ` Stephen M O'Shaughnessy
1996-08-14 0:00 ` Stephen M O'Shaughnessy
[not found] ` <Pine.GS <gwinn-1908961215100001@smc19.ed.ray.com>
1996-08-19 0:00 ` Adam Beneschan
1996-08-13 0:00 ` Jon S Anthony
1996-08-13 0:00 ` Jon S Anthony
1996-08-14 0:00 ` Norman H. Cohen
1996-08-19 0:00 ` Jon S Anthony
1996-08-20 0:00 ` Craig Franck
1996-08-20 0:00 ` Jon S Anthony
1996-08-21 0:00 ` Craig Franck
1996-08-27 0:00 ` Valentin Bonnard
1996-07-06 0:00 ` Walter B. Hollman Sr.
1996-07-05 0:00 ` Jon S Anthony
1996-07-08 0:00 ` Peter Hermann
1996-07-09 0:00 ` Dirk Dickmanns
1996-07-12 0:00 ` ntxbow
1996-07-15 0:00 ` Kevin D. Quitt
1996-07-15 0:00 ` Robert Dewar
1996-07-16 0:00 ` Ian Ward
1996-07-17 0:00 ` Dale Stanbrough
1996-07-23 0:00 ` Jon S Anthony
1996-07-29 0:00 ` William Clodius
1996-07-31 0:00 ` Darin Johnson
1996-08-01 0:00 ` Tim Behrendsen
1996-08-01 0:00 ` Jon S Anthony
1996-08-01 0:00 ` Jon S Anthony
1996-08-05 0:00 ` Stefan 'Stetson' Skoglund
1996-08-16 0:00 ` Jon S Anthony
[not found] ` <874508446wnr@t-cubed.demon.co.uk>
1996-06-29 0:00 ` Jon S Anthony
1996-07-01 0:00 ` James A. Squire
1996-07-02 0:00 ` Darin Johnson
1996-07-03 0:00 ` If your only tool is a hammer, all your problems look like nails (was Re: C is 'better' than Ada because...) Bruce Clement
-- strict thread matches above, loose matches on Subject: below --
1996-07-30 0:00 C is 'better' than Ada because Spasmo
[not found] ` <01bb7e29$61e3d260$87ee6fce@timpent.airshields.com>
1996-07-31 0:00 ` Bob Kitzberger
1996-07-31 0:00 ` Tim Behrendsen
1996-07-31 0:00 ` Jon S Anthony
1996-08-01 0:00 ` Tim Behrendsen
1996-08-02 0:00 ` Ralph Silverman
1996-08-01 0:00 William Clodius
1996-08-03 0:00 ` Tim Behrendsen
1996-08-05 0:00 ` Kevin D. Quitt
1996-08-05 0:00 ` Stefan 'Stetson' Skoglund
1996-08-05 0:00 ` William Clodius
1996-08-01 0:00 Tim Behrendsen
1996-08-02 0:00 ` David Bonham
1996-08-02 0:00 ` Mark McKinney
[not found] ` <9608061851.AA17508@camo.brc.shell.com>
1996-08-06 0:00 ` Tim Behrendsen
1996-08-04 0:00 @#$%!?!
[not found] <Pine.GSO.>
[not found] ` <4 <4vb399$kt8@mtinsc01-mgt.ops.worldnet.att.net>
1996-08-20 0:00 ` Adam Beneschan
1996-08-20 0:00 ` Craig Franck
1996-08-21 0:00 ` Mike Roske
1996-08-21 0:00 ` William C Brennan
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