Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.c > #29333

Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2)

Path csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!border3.nntp.dca.giganews.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail
NNTP-Posting-Date Sun, 16 Dec 2012 09:30:56 -0600
Message-ID <50CDE932.4B5@mindspring.com> (permalink)
Date Sun, 16 Dec 2012 10:30:58 -0500
From pete <pfiland@mindspring.com>
Reply-To pfiland@mindspring.com
Organization PF
X-Mailer Mozilla 3.04Gold (WinNT; I)
MIME-Version 1.0
Newsgroups comp.lang.c
Subject Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2)
References <rfvoc8ludt8psl9s51v9re04gvuqhmj36v@4ax.com>
Content-Type text/plain; charset=us-ascii
Content-Transfer-Encoding 7bit
Lines 42
X-Usenet-Provider http://www.giganews.com
NNTP-Posting-Host 4.154.218.66
X-Trace sv3-St6BmIxrKefP3ryyXcXVRg6X+H8bl68opJSxv8mbKPl8DdIEp99A8PD5DeZhWHxDeLUC1xhb0TmwbgE!ppA4bHg0i+ZiCBAIS3l5K13thlUPiCmArGatUz6+98QbZtHxEqSpa+nD+ZqAL8GKiGIkpLy+29ey!bOfMTDBm
X-Abuse-and-DMCA-Info Please be sure to forward a copy of ALL headers
X-Abuse-and-DMCA-Info Otherwise we will be unable to process your complaint properly
X-Postfilter 1.3.40
X-Original-Bytes 1833
Xref csiph.com comp.lang.c:29333

Show key headers only | View raw


Test wrote:
> 
> I have:
> 
> for (i=0,i2=0;i<10;i++,i2++)
>    {
>    .. some code
>    }
> 
> Is "," (comma) oke here?

Yes.

> I am converting below code to for -loop:
> 
> i=0;
> i2=0;
> while (i<10)
>    {
>    ... some code
>    i++;
>    i2++;
>    }
> 
> Which is executed first in for (i=0,i2=0;i<10;i++,i2++)? i2=0 or i=0?

i=0

> Any caveats?
> I could not find explanation to comma usage (maybe not not looking
> hard enough).

Not being able to find an explanation without looking hard,
might be considered to be a caveat.

Also, as I believe others have mentioned,
if ".. some code" contains a "continue" statement,
then i++ i2++ will be executed at the end of the "for loop"
but not at the end of the "while loop".

-- 
pete

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Test <test@.nil.invalid.com> - 2012-12-15 15:47 +0200
  Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-15 14:05 +0000
    Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-15 20:26 +0000
      Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-15 20:47 +0000
        Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Les Cargill <lcargill99@comcast.com> - 2012-12-15 15:34 -0600
          Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Nick Keighley <nick_keighley_nospam@hotmail.com> - 2012-12-16 03:23 -0800
        Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Shao Miller <sha0.miller@gmail.com> - 2012-12-15 16:37 -0500
          Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-15 22:10 +0000
            Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Shao Miller <sha0.miller@gmail.com> - 2012-12-15 17:32 -0500
              Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-15 15:43 -0800
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Shao Miller <sha0.miller@gmail.com> - 2012-12-16 02:15 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-16 14:21 -0800
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Shao Miller <sha0.miller@gmail.com> - 2012-12-16 18:34 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-17 01:15 -0800
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-17 10:30 -0800
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-17 16:07 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-17 08:13 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-17 10:33 -0800
              Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-16 01:24 +0000
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Shao Miller <sha0.miller@gmail.com> - 2012-12-16 02:19 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-16 13:11 +0000
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Shao Miller <sha0.miller@gmail.com> - 2012-12-16 14:51 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-16 21:16 +0000
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-17 00:55 -0800
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-17 15:08 +0000
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-20 10:40 -0800
        Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-15 22:09 +0000
  Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-12-15 06:11 -0800
    Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Les Cargill <lcargill99@comcast.com> - 2012-12-15 13:26 -0600
  Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) James Kuyper <jameskuyper@verizon.net> - 2012-12-15 09:24 -0500
    Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-15 12:21 -0800
      Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) James Kuyper <jameskuyper@verizon.net> - 2012-12-15 16:42 -0500
      Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Philip Lantz <prl@canterey.us> - 2012-12-16 00:09 -0800
        Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) James Kuyper <jameskuyper@verizon.net> - 2012-12-16 08:46 -0500
          Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-16 14:29 -0800
  Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-16 10:30 -0500
  Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-12-17 12:42 +0200
    Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-12-17 23:07 +0200
      Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-17 19:31 -0500
        Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-18 01:32 +0000
          Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-17 20:53 -0500
            Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-18 02:29 +0000
              Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-18 05:48 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-18 11:26 +0000
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-20 16:20 -0500
                Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Keith Thompson <kst-u@mib.org> - 2012-12-18 03:44 -0800
            Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) James Kuyper <jameskuyper@verizon.net> - 2012-12-17 22:13 -0500
              Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-18 05:40 -0500
        Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-12-20 15:14 +0200
          Re: comma in a c statement, ie for(i=0,i2=0;i<10;i++,i2) pete <pfiland@mindspring.com> - 2012-12-20 16:31 -0500

csiph-web