Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
| From | Kaz Kylheku <kaz@kylheku.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Updating C default type |
| Date | 2014-04-22 19:08 +0000 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <20140422120151.80@kylheku.com> (permalink) |
| References | <lj66ho$8fg$1@speranza.aioe.org> |
On 2014-04-22, Raj Pashwar <raj121190@hotmail.NOSPAM.com> wrote:
> We know, that C was created when computers had poor CPU power, this led
> to many design decisions for C.
>
> Many of these now, are out of date, because even small microprocessors,
> have comparatively very powerful CPUs comparing to the 1970s.
>
> One good example, is the use of "int" as the default type. Today working
> with floating point operands is NOT expensive for modern CPUs.
There is no "default type"; all declarations in C must have a type specifier
now. Defining a function with the "implicit int" rule is deprecated:
func() /* old style C: actually returns int */
{
return 0; /* no problem */
}
> A "double"
> has much bigger range and precision than int.
This is very silly argument. Floating point numbers and integers have different
semantics.
A double does not have greater precision than int; an integer *precisely* represents
integers. A double *imprecisely* approximates real numbers using rational numbers.
Operations on double are *inexact* in general.
A double also does not support bit operations.
> So a very easy improvement
> to C, will be to make return types for most standard functions, into
> "double".
>
> I.E. main() can return double, malloc() can take a double argument, ETC.
There is no reason to ever ask malloc for 10.3 bytes, or to return an
error status of 0.5 out of main. (Half succeeded?)
Can you name any serious high level language that uses doubles for error
codes, or sizes of memory allocations?
Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Updating C default type Raj Pashwar <raj121190@hotmail.NOSPAM.com> - 2014-04-22 16:48 +0000
Re: Updating C default type jacob navia <jacob@spamsink.net> - 2014-04-22 18:59 +0200
Re: Updating C default type Raj Pashwar <raj121190@hotmail.NOSPAM.com> - 2014-04-22 17:13 +0000
Re: Updating C default type Keith Thompson <kst-u@mib.org> - 2014-04-22 11:59 -0700
Re: Updating C default type Kaz Kylheku <kaz@kylheku.com> - 2014-04-22 19:12 +0000
Re: Updating C default type jacob navia <jacob@spamsink.net> - 2014-04-25 19:31 +0200
Re: Updating C default type Stephen Sprunk <stephen@sprunk.org> - 2014-04-22 15:41 -0500
Re: Updating C default type "BartC" <bc@freeuk.com> - 2014-04-22 21:47 +0100
Re: Updating C default type Ken Brody <kenbrody@spamcop.net> - 2014-04-24 12:25 -0400
Re: Updating C default type Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-24 10:32 -0700
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-24 20:17 +0000
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-24 21:03 +0000
Re: Updating C default type Gareth Owen <gwowen@gmail.com> - 2014-04-22 19:12 +0100
Re: Updating C default type Keith Thompson <kst-u@mib.org> - 2014-04-22 10:26 -0700
Re: Updating C default type Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-22 10:28 -0700
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-22 18:20 +0000
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-22 19:09 +0000
Re: Updating C default type James Kuyper <jameskuyper@verizon.net> - 2014-04-22 15:35 -0400
Re: Updating C default type James Kuyper <jameskuyper@verizon.net> - 2014-04-22 15:38 -0400
Re: Updating C default type Kaz Kylheku <kaz@kylheku.com> - 2014-04-22 19:54 +0000
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-22 21:27 +0000
Re: Updating C default type "BartC" <bc@freeuk.com> - 2014-04-22 23:08 +0100
Re: Updating C default type Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-04-22 22:03 +0100
Re: Updating C default type Thomas Jahns <jahns@idontlikespam.dkrz.de> - 2014-04-23 09:59 +0200
Re: Updating C default type David Thompson <dave.thompson2@verizon.net> - 2014-05-25 16:44 -0400
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-05-26 05:48 +0000
Re: Updating C default type "Osmium" <r124c4u102@comcast.net> - 2014-04-22 14:01 -0500
Re: Updating C default type Quentin Pope <qp19433@hotmail.NOSPAM.com> - 2014-04-23 16:57 +0000
Re: Updating C default type James Kuyper <jameskuyper@verizon.net> - 2014-04-23 13:13 -0400
Re: Updating C default type Kaz Kylheku <kaz@kylheku.com> - 2014-04-23 18:02 +0000
Re: Updating C default type Keith Thompson <kst-u@mib.org> - 2014-04-23 11:33 -0700
Re: Updating C default type Kaz Kylheku <kaz@kylheku.com> - 2014-04-22 19:08 +0000
Re: Updating C default type Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-04-22 22:08 +0100
Re: Updating C default type "BartC" <bc@freeuk.com> - 2014-04-22 22:19 +0100
Re: Updating C default type Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-22 14:13 -0700
Re: Updating C default type Stephen Sprunk <stephen@sprunk.org> - 2014-04-23 11:55 -0500
Re: Updating C default type Keith Thompson <kst-u@mib.org> - 2014-04-23 10:55 -0700
Re: Updating C default type Robert Wessel <robertwessel2@yahoo.com> - 2014-04-24 00:03 -0500
Re: Updating C default type Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-23 22:37 -0700
Re: Updating C default type glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-24 12:05 +0000
Re: Updating C default type gordonb.ez7sl@burditt.org (Gordon Burditt) - 2014-04-25 06:11 -0500
Re: Updating C default type James Kuyper <jameskuyper@verizon.net> - 2014-04-25 08:48 -0400
Re: Updating C default type Stephen Sprunk <stephen@sprunk.org> - 2014-04-22 15:30 -0500
Re: Updating C default type ralph <nt_consulting@yahoo.com> - 2014-04-22 23:18 -0500
Re: Updating C default type Ken Brody <kenbrody@spamcop.net> - 2014-04-24 12:28 -0400
Re: Updating C default type gordonb.oztxz@burditt.org (Gordon Burditt) - 2014-04-24 23:50 -0500
Re: Updating C default type James Kuyper <jameskuyper@verizon.net> - 2014-04-25 08:41 -0400
Re: Updating C default type Hans Vlems <hvlems@freenet.de> - 2014-05-25 23:57 -0700
Re: Updating C default type Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-05-26 01:55 -0700
Re: Updating C default type Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-05-26 13:01 +0100
Re: Updating C default type Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-05-26 13:12 -0700
Re: Updating C default type Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-05-26 22:31 +0100
Re: Updating C default type Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-05-26 23:55 +0100
Re: Updating C default type Keith Thompson <kst-u@mib.org> - 2014-05-26 17:11 -0700
Re: Updating C default type James Kuyper <jameskuyper@verizon.net> - 2014-05-27 07:54 -0400
csiph-web