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From: Proton (matt_at_[hidden])
Date: 2022-08-18 02:24:51

> On Aug 17, 2022, at 4:11 PM, Gero Peterhoff via Boost <boost_at_[hidden]> wrote:
> Hi,
> I just see that boost::math::ccmath::copysign doesn't work.
> cu
> Gero
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The typical implementation of copysign and signbit involve type-punning which is not allowed in constexpr contexts. An example can be found here: Due to this limitation we do not provide support for signed zero or analyzing the sign of NAN.


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