Re: multiprecision issues

From: John Maddock (jz.maddock_at_[hidden])
Date: 2023-04-23 11:15:41

On 22/04/2023 22:48, Gero Peterhoff via Boost wrote:
> Hi John,
> i stumbled over some more issues https://godbolt.org/z/x5srG9eof :
> - the unary operator- does not work with 
> boost::multiprecision::cpp_bin_float_N on nan
> - operator<<(boost::multiprecision::float128) does not support 
> std::showpos with std::hexfloat
> - operator<<(boost::multiprecision::cpp_bin_float_N) does not support 
> std::hexfloat and in the case of nan does not support std::showpos
>
> I also miss C++17 from_chars/to_chars.
> I realize that this is extremely tedious work, but multiprecision 
> should be as compatible to the standard as possible.
> If you want, I'll be happy to look for various issues and report them 
> to you, but you'll have to fix them yourself.

Can you please report these as separate issues on github 
(https://github.com/boostorg/multiprecision/issues) so we have something 
to track?

Thanks!  John.