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From: 'Zack Weinberg' <zack@codesourcery.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: preprocessor/5806: The preprocessor evaluates expression s in 64-bit, violating IS C++ 16.1.4 Date: Thu, 14 Mar 2002 15:16:00 -0000 [thread overview] Message-ID: <20020314231603.597.qmail@sources.redhat.com> (raw) The following reply was made to PR preprocessor/5806; it has been noted by GNATS. From: 'Zack Weinberg' <zack@codesourcery.com> To: "Dana, Eric" <Eric_Dana@bmc.com> Cc: 'Neil Booth' <neil@daikokuya.demon.co.uk>, "'gcc-gnats@gcc.gnu.org'" <gcc-gnats@gcc.gnu.org>, "Schoeller, Dick" <Dick_Schoeller@bmc.com> Subject: Re: preprocessor/5806: The preprocessor evaluates expression s in 64-bit, violating IS C++ 16.1.4 Date: Thu, 14 Mar 2002 15:14:39 -0800 On Thu, Mar 14, 2002 at 02:58:41PM -0600, Dana, Eric wrote: > Zack, > > Is there anything that can be done for 3.1? In it's present state, > Dynix cannot work properly as many of its include files test for > 32/64 bit using the preprocessor. For example: > > #if ((~0UL) == 0xffffffffUL) > typedef unsigned int size_t; /* ILP32 size_t */ > #else /* ((~0UL) == 0xffffffffUL) */ > typedef unsigned long size_t; /* LP64 size_t */ > #endif /* ((~0UL) == 0xffffffffUL) */ In the short term, a fixincludes hack is probably the right move. GCC almost certainly provides a predefined macro that you can use to detect the mode you're in -- tell me the output of config.guess and I can figure out what it should be. Then you have fixincludes look for that #if and change it to an appropriate test of the macro. zw
next reply other threads:[~2002-03-14 23:16 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-03-14 15:16 'Zack Weinberg' [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-08-05 15:26 Dana, Eric 2002-08-03 0:56 'Zack Weinberg' 2002-05-27 13:35 neil 2002-05-26 12:16 neil 2002-03-25 0:53 neil 2002-03-15 8:56 Dana, Eric 2002-03-14 13:06 Dana, Eric 2002-03-14 13:06 'Neil Booth' 2002-03-14 11:46 Zack Weinberg 2002-03-01 15:16 Neil Booth 2002-03-01 13:36 Zack Weinberg 2002-03-01 12:16 eric_dana
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