Overview MPIR is a highly optimised library for bignum arithmetic forked from the GMP bignum library. It is written in assembly language and C. It is community maintained via the GitHub repositories of William Hart (Linux/OSX) and Brian Gladman (Windows). There are currently no curators for other platforms. MPIR is licensed LGPL v3+. MPIR is assembly optimised for various x86-64 CPUs. It is design