Hello Roland!
On Mon, Mar 24, 2014 at 11:19 AM, Roland Schwingel <rol...@onevision.com> wrote:
> Hi Kai...
>
> Kai Tietz <ktiet...@googlemail.com> wrote on 24.03.2014 15:19:03:
>
> > Hi Roland,
> >
> > could you please provide a small testcase
> > demonstrating this end-less loop?
> Testcase is quite simple:
>
> #include <stdio.h>
> #include <math.h>
>
> int main(int argc,const char **argv)
> {
> printf("before\n");
> pow(2,-2147483648.);
> printf("after\n");
>
> return 0;
> }
>
> > I assume that this issue got already fixed in the past. And there is
> > for sure no endless loop on the iteration due in my repository we
> > iterate here on an unsigned variant of y, so there is no such thing.
> > Might it be that you were using a different version then I do?
> Here we are running the most recent released mingw-w64-crt (3.1).
> I even looked into trunk. The code there was not changed for months.
Just to confirm that you are not going totally crazy, I do see the
endless loop with an older version of mingw-w64.
pow_test.c is your test-case code from above.
C:\>gcc --version
gcc (rubenvb-4.8-stdthread) 4.8.1 20130324 (prerelease)
C:\>gcc -o pow_test pow_test.c
C:\>pow_test
before
^C
Here, the "^C" indicates that I killed pow_test because it had hung.
Thanks for the heads-up. I'll know to be on the lookout for this
bug, at least until my next upgrade.
> Greetings,
>
> Roland
Best.
K. Frank
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