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[Bug libstdc++/50880] __complex_acosh() picks wrong complex branch
- From: "gdr at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 02 Nov 2011 12:27:20 +0000
- Subject: [Bug libstdc++/50880] __complex_acosh() picks wrong complex branch
- Auto-submitted: auto-generated
- References: <bug-50880-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50880
--- Comment #14 from Gabriel Dos Reis <gdr at gcc dot gnu.org> 2011-11-02 12:27:20 UTC ---
(In reply to comment #9)
> Created attachment 25654 [details]
> BC2
Since we are talking about branch cut and prespectiving
since zeros, I think we should avoid the
the arithmetic z -/+ one, whee one is of a complex<T>.
Rather the computation should be be directly on
the components. This is to prevent signed zeros
to have their mutated.