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Groups > comp.lang.c > #23440

Re: What shall return "0.0 ? 1 : 0" ?

From Xavier Roche <xroche@free.fr.NOSPAM.invalid>
Newsgroups comp.lang.c
Subject Re: What shall return "0.0 ? 1 : 0" ?
Date 2012-07-20 16:02 +0200
Organization Nowhere Corp.
Message-ID <juboe7$k38$2@news.httrack.net> (permalink)
References <jubm08$k38$1@news.httrack.net> <jubo6i$s65$1@dont-email.me>

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On 07/20/2012 03:58 PM, Noob wrote:
> Since 0.0 (the floating constant) compares equal to 0 (the integral constant)
> (0.0 ? 1 : 0) has value 0, as far as I can tell.

Thanks a lot to both of you. It appears to be a bug in Visual C++ 2010 
(*) then.

This impression is confirmed when trying:
	static double zero = 0.0;
..
	zero ? 0 : 1
which returns the correct value (0).

(*) tested version: cl.exe 16.00.30319.01 for x64 (same issue using the 
x86 release)

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Thread

What shall return "0.0 ? 1 : 0" ? Xavier Roche <xroche@free.fr.NOSPAM.invalid> - 2012-07-20 15:21 +0200
  Re: What shall return "0.0 ? 1 : 0" ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-20 14:57 +0100
    Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-21 14:39 -0700
      Re: What shall return "0.0 ? 1 : 0" ? Ralf Damaschke <rwspam@gmx.de> - 2012-07-21 23:31 +0000
        Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-21 21:57 -0700
          Re: What shall return "0.0 ? 1 : 0" ? Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-07-22 17:27 +0300
            Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-09-07 11:15 -0700
          Re: What shall return "0.0 ? 1 : 0" ? Martin Shobe <martin.shobe@yahoo.com> - 2012-07-22 18:43 +0000
            Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-09-07 10:14 -0700
          Re: What shall return "0.0 ? 1 : 0" ? Ralf Damaschke <rwspam@gmx.de> - 2012-07-22 22:43 +0000
            Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-09-07 10:59 -0700
      Re: What shall return "0.0 ? 1 : 0" ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-22 02:43 +0100
        Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-21 22:05 -0700
      Re: What shall return "0.0 ? 1 : 0" ? Seungbeom Kim <musiphil@bawi.org> - 2012-07-22 03:20 -0700
        Re: What shall return "0.0 ? 1 : 0" ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-22 14:25 +0100
          Re: What shall return "0.0 ? 1 : 0" ? "Bill Leary" <Bill_Leary@msn.com> - 2012-07-22 18:56 -0400
            Re: What shall return "0.0 ? 1 : 0" ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-23 01:37 +0100
              Re: What shall return "0.0 ? 1 : 0" ? "Bill Leary" <Bill_Leary@msn.com> - 2012-07-23 07:27 -0400
            Re: What shall return "0.0 ? 1 : 0" ? Ike Naar <ike@sverige.freeshell.org> - 2012-07-23 06:45 +0000
              Re: What shall return "0.0 ? 1 : 0" ? "Bill Leary" <Bill_Leary@msn.com> - 2012-07-23 07:37 -0400
          Re: What shall return "0.0 ? 1 : 0" ? Ike Naar <ike@sverige.freeshell.org> - 2012-07-23 06:49 +0000
            Re: What shall return "0.0 ? 1 : 0" ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-23 12:42 +0100
  Re: What shall return "0.0 ? 1 : 0" ? Noob <root@127.0.0.1> - 2012-07-20 15:58 +0200
    Re: What shall return "0.0 ? 1 : 0" ? Xavier Roche <xroche@free.fr.NOSPAM.invalid> - 2012-07-20 16:02 +0200
      Re: What shall return "0.0 ? 1 : 0" ? Noob <root@127.0.0.1> - 2012-07-20 16:22 +0200
        Re: What shall return "0.0 ? 1 : 0" ? Xavier Roche <xroche@free.fr.NOSPAM.invalid> - 2012-07-20 16:26 +0200
          Re: What shall return "0.0 ? 1 : 0" ? Kenneth Brody <kenbrody@spamcop.net> - 2012-07-20 15:11 -0400
          Re: What shall return "0.0 ? 1 : 0" ? Robert Miles <milesrf@Usenet-News.net> - 2012-08-25 00:16 -0500
      Re: What shall return "0.0 ? 1 : 0" ? Kenneth Brody <kenbrody@spamcop.net> - 2012-07-20 15:10 -0400
  Re: What shall return "0.0 ? 1 : 0" ? jacob navia <jacob@spamsink.net> - 2012-07-20 18:15 +0200
  Re: What shall return "0.0 ? 1 : 0" ? Keith Thompson <kst-u@mib.org> - 2012-07-20 09:51 -0700
    Re: What shall return "0.0 ? 1 : 0" ? pete <pfiland@mindspring.com> - 2012-07-20 20:29 -0400
      Re: What shall return "0.0 ? 1 : 0" ? Keith Thompson <kst-u@mib.org> - 2012-07-20 20:25 -0700
        Re: What shall return "0.0 ? 1 : 0" ? Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-07-21 22:22 +0300
        Re: What shall return "0.0 ? 1 : 0" ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-21 14:54 -0700
    Re: expressions, evaluations, and values (was: What shall return "0.0 ? 1 : 0" ?) Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-21 14:52 -0700
  Re: What shall return "0.0 ? 1 : 0" ? Keith Thompson <kst-u@mib.org> - 2012-07-20 10:08 -0700

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