Re: Floating point question

[Heinz Ulrich Stille <Heinz.Ulrich.Stille@xxxxxxxxx>]

Hi!

On Tue, 12 Jan 1999, John Montgomery wrote:
>> Is -mieee still required?
>
>No.  I suppose therefore I could still die on FPE's not avoided in

In general, it still is. libffm does not catch everything, like simple
arithmetic. E.g. povray does not work without -mieee even with libffm.

At least you would have to trap and handle the remaining FPEs. IIRC the kernel
doesn't allow blocking, and the man page of sigaction says: "According to POSIX,
the behaviour of a process is undefined  after it ignores a SIGFPE, SIGILL, or
SIGSEGV signal that was not generated by the kill() or the raise() functions."

MfG, Ulrich

-- 
The past nodded and smiled at him, and strolled on, into the future.
                                               T. Pratchett, "Men at Arms"

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