This is a Julia interface to libquadmath, providing a Float128 type corresponding to the IEEE754 binary128 floating point format.

Quadmath currently works on x86_64 Linux and macOS.

• It may require a new-ish version of gcc which supports __float128 type.
• It has not been tested on 32 bit Linux.
• I have not had any luck getting it to work on Windows. It's probably something to do with the calling convention: if someone figures it out I would be very grateful.
• It does not work on ARM due to the lack of libquadmath support for that platform.

Pkg.clone("https://github.com/simonbyrne/Quadmath.jl")

Thank you to Harald Hofstätter, who provided the first iteration of Quadmath.jl.