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Re: isfinite() failure on Cygwin with gcc 3.4.1

From: Jeff Johnston <jjohnstn at redhat dot com>
To: "Billinghurst, David (CALCRTS)" <david dot billinghurst at comalco dot riotinto dot com dot au>
Cc: newlib at sources dot redhat dot com
Date: Tue, 08 Feb 2005 14:07:09 -0500
Subject: Re: isfinite() failure on Cygwin with gcc 3.4.1
References: <026DCC31AB859648A6F16C0E5CD2580D03E4F6@calttsv025.cal.riotinto.org>

Billinghurst, David (CALCRTS) wrote:

From: Billinghurst, David

This problem affects more than just isfinite. fpclassify is used elsewhere, and the expansion of isunordered() ends up with multiple uninitilizated variables. This patch

...

is not required as jeff's patch in CVS does the job. Thanks.

David

Great. I was going to mention that the way it is implemented in newlib accounts for side-effects in the input variables (e.g. *ptr++) which is why we assign the variables to temporaries instead of implementing the whole lot as nested macros. By assigning, we only reference the input variables once.

-- Jeff J.


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References:
- RE: isfinite() failure on Cygwin with gcc 3.4.1
  - From: Billinghurst, David \(CALCRTS\)

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