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Groups > comp.lang.c++ > #13961

Re: The or operator and the preprocessor?

From Ian Collins <ian-news@hotmail.com>
Newsgroups comp.lang.c++
Subject Re: The or operator and the preprocessor?
Date 2012-02-13 20:27 +1300
Message-ID <9prsabF2i6U2@mid.individual.net> (permalink)
References <jh9ra0$2h3$1@speranza.aioe.org> <9prck4F2i6U1@mid.individual.net> <jha79h$mlb$1@speranza.aioe.org>

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On 02/13/12 06:32 PM, glen herrmannsfeldt wrote:
> Ian Collins<ian-news@hotmail.com>  wrote:
>
> (snip, I wrote)
>
>>> error: "or" cannot be used as a macro name as it is an operator in C++
>
> (snip)
>
>> The error is valid, "or" is the alternative token for "||" in C++.
>
> Oh, so also valid in preprocessor statements?
>
> So might cause problems similar to:
>
> #define x define
>
> #x y 1
>
>> Redefining it is a bad idea.
>
> Well, that is probably true of all the language keywords.

"or" is an operator, not a keyword.

-- 
Ian Collins

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Thread

The or operator and the preprocessor? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-02-13 02:08 +0000
  Re: The or operator and the preprocessor? Ian Collins <ian-news@hotmail.com> - 2012-02-13 15:59 +1300
    Re: The or operator and the preprocessor? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-02-13 05:32 +0000
      Re: The or operator and the preprocessor? Ian Collins <ian-news@hotmail.com> - 2012-02-13 20:27 +1300

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