Re: bug - boost::math::ccmath::copysign not work

From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2022-08-18 12:26:33

On 8/18/22 13:13, John Maddock via Boost wrote:
> On 18/08/2022 07:23, Mathias Gaunard via Boost wrote:
>> bit_cast is constexpr.
> 
> Good catch!
> 
> Matt and I discussed this ages ago and decided it was basically
> impossible, it's a shame that fix is C++20 but it's certainly better
> than nothing.

__builtin_bit_cast is available regardless of the C++ level. Though
you're still limited to compilers that support it.