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Re: GCC optimizes integer overflow: bug or feature?

From: Paul Eggert <eggert at CS dot UCLA dot EDU>
To: Roberto Bagnara <bagnara at cs dot unipr dot it>
Cc: gcc at gcc dot gnu dot org
Date: Fri, 29 Dec 2006 00:20:21 -0800
Subject: Re: GCC optimizes integer overflow: bug or feature?
References: <458B7F4C.3080508@cs.unipr.it> <87tzzogyi9.fsf@penguin.cs.ucla.edu> <458B9595.2060308@cs.unipr.it>

Roberto Bagnara <bagnara@cs.unipr.it> writes:

> My reading, instead, is that C99 requires unsigned long long int
> to have exactly the same number of bits as long long int.

Yes, that's correct.  Sorry, I got confused between C89
(which is what that Tandem NSK version supports) and C99.

References:
- Re: GCC optimizes integer overflow: bug or feature?
  - From: Roberto Bagnara
- Re: GCC optimizes integer overflow: bug or feature?
  - From: Paul Eggert
- Re: GCC optimizes integer overflow: bug or feature?
  - From: Roberto Bagnara

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