[ANNOUNCEMENT] TEST RELEASE: Cygwin 2.11.0-0.1
Mon Aug 13 08:03:00 GMT 2018
On 2018-08-10 14:43, Houder wrote:
> On Fri, 10 Aug 2018 13:42:54, Corinna Vinschen wrote:
>> > 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
> change ... (both in the default env. and in the "nomask" env.)
> Meaning that, after this change, this exception can * no longer * be
> 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)
> /usr/include/fenv.h (which is a copy of the above, I am guessing ?????)
Does the modification of winsup/cygwin/include/fenv.h "automatically"
Said differently, does "your" machinery (build) take care of that?
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