Re: '5'-'0' = 5 alway? guaranteed?

From	"Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com>
Newsgroups	comp.lang.c++
Subject	Re: '5'-'0' = 5 alway? guaranteed?
Date	2011-05-20 00:39 +0200
Organization	A noiseless patient Spider
Message-ID	<ir45rn$n1k$1@dont-email.me> (permalink)
References	<t_dBp.16910$7H.13151@newsfe08.ams2> <ir3qlq$a84$1@dont-email.me> <vieBp.666$Ky.145@newsfe24.ams2> <4dd5764b$0$2413$cc2e38e6@news.uslec.net> <digits-20110519220842@ram.dialup.fu-berlin.de>

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* Stefan Ram, on 19.05.2011 22:09:
> Noah Roberts<dont@email.me>  writes:
>> He's wrong actually.  It's a really good bet, but by no means guaranteed.
>
>    Then how for any digit character c, the expression
>    (do_narrow(c,dfault)-'0') evaluates to the digit value of
>    the character? (according to ISO/IEC 14882:2003(E)
>    22.2.1.1.2 char do_narrow(charT c, char dfault) const,
>    Effects)

Noah is in my killfile so I don't see his article. And he knows that. And 
needless to say, Noah's public insinuation that I was guessing, knowing full 
well that I don't see his article, is just what one can expect from him.

If you want to check out the formal it's at the very start of the standard 
somewhere .

You can download the latest draft (of the next standard) from the committee pages.

Cheers & hth.,

- Alf

-- 
blog at <url: http://alfps.wordpress.com>

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Thread

'5'-'0' = 5 alway? guaranteed? "crea" <no@invalid.com> - 2011-05-19 20:13 +0100
  Re: '5'-'0' = 5 alway? guaranteed? "Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com> - 2011-05-19 21:28 +0200
    Re: '5'-'0' = 5 alway? guaranteed? "crea" <no@invalid.com> - 2011-05-19 20:35 +0100
      Re: '5'-'0' = 5 alway? guaranteed? Noah Roberts <dont@email.me> - 2011-05-19 12:58 -0700
        Re: '5'-'0' = 5 alway? guaranteed? Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-19 16:10 -0400
        Re: '5'-'0' = 5 alway? guaranteed? Pete Becker <pete@versatilecoding.com> - 2011-05-19 16:21 -0400
          Re: '5'-'0' = 5 alway? guaranteed? "crea" <no@invalid.com> - 2011-05-19 21:24 +0100
        Re: '5'-'0' = 5 alway? guaranteed? "Alf P. Steinbach /Usenet" <alf.p.steinbach+usenet@gmail.com> - 2011-05-20 00:39 +0200

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