[perl #37993] [BUG] optimized parrot behaves differently than non-optimized (win32-msvc)

[Reini Urban via RT]

On Thu Jan 29 06:05:13 2009, Whiteknight wrote:
> On Wed Dec 24 05:39:54 2008, Whiteknight wrote:
> > On Tue Dec 23 19:02:17 2008, jkeen at verizon.net wrote:
> > > On Sat Jun 14 17:15:32 2008, jkeen at verizon.net wrote:
> > > > Would it be possible to test Parrot on Win32 non-optimized and
> optimized
> > > > so as to see whether this is still a bug?

This neg -0 => 0 error is observable on msvc and mingw.

It is caused by the msvcrt.dll (aka the libc) for windows and is
therefore parrot and compiler independent.
cygwin is not affected, since newlib has this correct.

We could work around it in the op for neg (DWIM) or keep it 
as expected platform semantics.
I would vote for platform unity, and fix the neg -0 case.
-- 
Reini Urban