Re: [ANNOUNCEMENT] TEST RELEASE: Cygwin 2.11.0-0.1

[Corinna Vinschen <corinna-cygwin@cygwin.com>]

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On Aug 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.

Don't worry about it.  I converted the file to ASCII-only and pushed the
change.  ASCII-only is the least common denominator and is preferred for
sources anyway.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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