Re: bin/51839: [PATCH] tests/lib/libm/t_scalbn: reset errno to 0 before calling scalbn*

To: gnats-bugs%NetBSD.org@localhost
Subject: Re: bin/51839: [PATCH] tests/lib/libm/t_scalbn: reset errno to 0 before calling scalbn*
From: Joerg Sonnenberger <joerg%bec.de@localhost>
Date: Fri, 13 Jan 2017 11:32:39 +0100

On Fri, Jan 13, 2017 at 04:40:00AM +0000, yaneurabeya%gmail.com@localhost wrote:
> <<<
> 
> An application wishing to check for error situations should set errno to zero and call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if errno is non-zero or fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an error has occurred.
> 
> >>>
> 
> FreeBSD definitely needs this to be done. The attached patch fixes that.

But it doesn't? It only provides half of that.

Joerg

References:
- bin/51839: [PATCH] tests/lib/libm/t_scalbn: reset errno to 0 before calling scalbn*
  - From: yaneurabeya

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