From: "Jed" <jehdiah@orbitway.net>
Subject: Re: Why use C++?
Date: Fri, 12 Aug 2011 00:15:05 -0500
Date: 2011-08-12T00:15:05-05:00 [thread overview]
Message-ID: <j22cs7$5ic$2@dont-email.me> (raw)
In-Reply-To: 4209d782502610f6dbc08933d358b6d6@dizum.com
"Nomen Nescio" <nobody@dizum.com> wrote in message
news:4209d782502610f6dbc08933d358b6d6@dizum.com...
> "Jed" <jehdiah@orbitway.net> wrote:
>
>> I know a little bit (enough to "be dangerous") of Intel assembly, and
>> it
>> looks like C/C++ integer types are a direct reflection of what is at
>> that
>> level. Even the fact that by default, integer literals are signed. So
>> in
>> that respect, I think they are special. They are chosen for efficiency
>> as
>> a direct reflection of hardware (I'm not saying all hardware is the
>> same,
>> mind you).
>
> What?
What what?
>
> Of course there are unsigned integers even in the twisted world of
> Intel.
> What's more C/C++ integer types are not a direct reflection of anything
> except the language spec otherwise the code would be completely not
> portable.
I didn't say it was. I said it probably arose from that. I'll bet integer
literals are signed in most assembly languages (going out on a limb with
this, because I really don't know). Hence, a no-brainer translation of
HLL code to assembly (recognizing, of course, that compilers are free to
generate machine code directly, rather than generating assembly).
>
>> You have to build those types though based upon the built-in ones,
>> yes?
>> If so, aren't modular, wrapping and overflow-checked equally good for
>> something and all worthy of being in a language? Of course there is
>> signed, unsigned and the different bit widths as candidates also. And
>> are
>> not those built-ins good to use "raw" in many cases? Are you
>> suggesting
>> that a language have NO types? There is assembly language for that
>> (and
>> the instruction set pretty much dictates what types you have to work
>> with
>> at that level).
>
> It's not true assembly language has no types,
It's generally considered "typeless" from the POV of HLL programmers. It
has relative meaning. No need to be pedantic about it.
> especially with certain
> systems and certain assemblers. The type in assembly language *does*
> usually reflect the native types of the underlying machine very
> closely,
> obviously.
And I'll bet, more often than not, C/C++ built-in types reflect that
also. It would be "silly" to specify a language to what is uncommon.
next prev parent reply other threads:[~2011-08-12 5:15 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fb9f787c-af06-427a-82b6-b0684e8dcbc5@s2g2000vby.googlegroups.com>
[not found] ` <j1kaj8$dge$1@adenine.netfront.net>
[not found] ` <1e292299-2cbe-4443-86f3-b19b8af50fff@c29g2000yqd.googlegroups.com>
[not found] ` <j1tha5$11q5$1@adenine.netfront.net>
[not found] ` <1fd0cc9b-859d-428e-b68a-11e34de84225@gz10g2000vbb.googlegroups.com>
2011-08-10 19:05 ` Why use C++? Niklas Holsti
2011-08-10 22:37 ` Randy Brukardt
2011-08-10 22:49 ` Ludovic Brenta
2011-08-12 4:54 ` Randy Brukardt
2011-08-11 7:54 ` Dmitry A. Kazakov
2011-08-11 8:20 ` Jed
2011-08-11 9:13 ` Dmitry A. Kazakov
2011-08-11 10:57 ` Jed
2011-08-11 11:43 ` Georg Bauhaus
2011-08-12 5:07 ` Jed
2011-08-11 13:11 ` Nomen Nescio
2011-08-11 15:11 ` Paul
2011-08-12 5:15 ` Jed [this message]
2011-08-12 21:39 ` Fritz Wuehler
2011-08-14 6:52 ` Jed
2011-08-14 8:13 ` Nomen Nescio
2011-08-11 15:09 ` Dmitry A. Kazakov
2011-08-12 5:03 ` Jed
2011-08-12 8:32 ` Georg Bauhaus
2011-08-12 13:15 ` Hyman Rosen
2011-08-12 22:09 ` Randy Brukardt
2011-08-12 15:14 ` Jed
2011-08-12 17:20 ` Georg Bauhaus
2011-08-12 19:51 ` Jed
2011-08-12 21:22 ` Ludovic Brenta
2011-08-14 7:00 ` Jed
2011-08-16 13:06 ` Ludovic Brenta
2011-08-13 9:37 ` Georg Bauhaus
2011-08-14 5:22 ` Jed
2011-08-13 10:27 ` Georg Bauhaus
2011-08-14 5:35 ` Jed
2011-08-14 20:13 ` Georg Bauhaus
2011-08-15 11:38 ` Georg Bauhaus
2011-08-13 11:02 ` Georg Bauhaus
2011-08-14 5:56 ` Jed
2011-08-12 9:21 ` Dmitry A. Kazakov
2011-08-12 13:26 ` Jed
2011-08-12 14:30 ` Dmitry A. Kazakov
2011-08-12 19:06 ` Jed
2011-08-12 20:05 ` Dmitry A. Kazakov
2011-08-13 7:53 ` Jed
2011-08-13 9:15 ` Dmitry A. Kazakov
2011-08-13 9:29 ` Ian Collins
2011-08-13 9:52 ` Dmitry A. Kazakov
2011-08-13 11:10 ` Ian Collins
2011-08-13 11:46 ` Georg Bauhaus
2011-08-13 20:30 ` Ian Collins
2011-08-13 11:54 ` Brian Drummond
2011-08-13 13:12 ` Simon Wright
2011-08-14 11:01 ` Brian Drummond
2011-08-14 4:54 ` Jed
2011-08-14 4:35 ` Jed
2011-08-14 6:46 ` Dmitry A. Kazakov
2011-08-14 4:49 ` Jed
2011-08-14 6:51 ` Dmitry A. Kazakov
2011-08-14 4:29 ` Jed
2011-08-14 7:29 ` Dmitry A. Kazakov
2011-08-16 8:18 ` Nick Keighley
2011-08-16 8:47 ` Dmitry A. Kazakov
2011-08-16 9:52 ` Nick Keighley
2011-08-16 10:39 ` Dmitry A. Kazakov
2011-08-16 10:23 ` Georg Bauhaus
2011-08-16 10:58 ` Dmitry A. Kazakov
2011-08-16 11:44 ` Georg Bauhaus
2011-08-16 14:51 ` Bill Findlay
2011-08-16 19:13 ` Dmitry A. Kazakov
2011-08-16 19:23 ` Bill Findlay
2011-08-12 11:48 ` Stuart Redmann
2011-08-12 13:12 ` Vinzent Hoefler
2011-08-12 15:50 ` Stuart Redmann
2011-08-12 17:02 ` Bill Findlay
2011-08-15 12:59 ` Vinzent Hoefler
2011-08-12 5:02 ` Randy Brukardt
2011-08-12 5:16 ` Robert Wessel
2011-08-12 16:39 ` Adam Beneschan
2011-08-12 5:24 ` Jed
2011-08-12 6:51 ` Paavo Helde
2011-08-12 7:41 ` Georg Bauhaus
2011-08-12 15:50 ` Fritz Wuehler
2011-08-12 19:59 ` Jed
2011-08-13 8:06 ` Stephen Leake
2011-08-12 9:40 ` Dmitry A. Kazakov
2011-08-12 9:45 ` Ludovic Brenta
2011-08-12 10:48 ` Georg Bauhaus
2011-08-12 15:56 ` Ludovic Brenta
2011-08-13 8:08 ` Stephen Leake
2011-08-18 13:39 ` Louisa
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox