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Date: Tue, 14 Aug 2018 00:16:10 +0200
From: Houder <houder AT xs4all DOT nl>
To: cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] TEST RELEASE: Cygwin 2.11.0-0.1
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On 2018-08-13 23:29, Houder wrote:
> On 2018-08-10 14:43, Houder wrote:
>> On Fri, 10 Aug 2018 13:42:54, Corinna Vinschen wrote:
>> [snip]
>> 
>>> > Note: the following line must be changed in STC-FENV.c (the STC that was
>>> > attached to the bug report -- the last one above).
>>> >
>>> > from:
>>> > const int xxx =3D 0x3d; // FE_ALL_EXCEPT on Linux, i.e. the denormal-...
>>> >                         // exception is excluded on Linux
>>> >
>>> > to:
>>> > const int xxx =3D 0x3f; // Cygwin allows the denormal-operand exception;
>>> >                         // Linux (Andreas Jaeger) does not.
>>> >                         // This exception is not defined by the IEEE 754
>>> >                         // standard (Floating-Point Arithmetic)
>>> 
>>> Shall we change that?  A patch would be nice. ;)
>> 
>> That is possible ...
>> 
>> As on Linux, the denormal-operand exception will always be masked 
>> after this
>> change ... (both in the default env. and in the "nomask" env.)
>> 
>> Meaning that, after this change, this exception can * no longer * be 
>> enabled
>> through the API of fenv.h
>> 
>> Objections? Anyone?
>> 
>> The modication would require changing:
>> 
>> winsup/cygwin/fenv.cc (_feinitialise() )
>> winsup/cygwin/include/fenv.h (FE_ALL_EXCEPT)
> 
> GRRR! The file encoding of fenv.h is "cp1252" because of 2 characters 
> in this
> line:
> 
>      Intel® 64 and IA-32 Architectures Software Developer’s Manuals:
> 
> ... part of a comment at the beginning of the file.
> 
> (the registered trademark sign (u00ae) is encoded as 0xae (cp1252), 
> while it
>  would be: 0xc2 0xae, in utf-8,
>  the right single quotation mark (u2019) is encoded as 0x92 (cp1252), 
> but in
>  utf-8 it would be: 0xc2 0x80 0x98)

s/ 0xc2 0x80 0x98 / 0xe2 0x80 0x99 /

Sorry!

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