master	mlmpfr.4.0.2	mlmpfr.4.0.1	mlmpfr.4.0.0	mlmpfr.3.1.6

(tested on linux and osx)

mlmpfr

OCaml bindings for MPFR.

build and install

Building mlmpfr depends on oasis (an OCaml build system), ocaml version >= 4.04, and MPFR library version 3.1.6, 4.0.0, 4.0.1 or 4.0.2. Basically you just need to install oasis via the opam package manager, which will triggers all the dependencies (such as ocamlfind for example).

From sources (github repo or releases): in mlmpfr main directory, on branch release_316 (resp. release mlmpfr.3.1.6) for MPFR 3.1.6, release_40[0-2] for MPFR 4.0.[0-2] (resp. releases mlmpfr.4.0.[0-2]). Make sure that you have the proper MPFR library version installed because mlmpfr won’t check for it.

oasis setup
./configure --enable-tests
make
make test
make install
# `make uninstall` to remove mlmpfr library.

From opam (targeting MPFR 3.1.6).

opam install mlmpfr.3.1.6
# `opam remove mlmpfr` to remove the package.

Note: opam package mlmpfr.4.0.0 also exists and its suitable for MPFR 4.0.0, 4.0.1 and 4.0.2 versions.

documentation

Run:

make doc # Generate HTML documentation

or see an HTML version here.

usage

For example, let example.ml as follows:

module M = Mpfr

let _ =
  let op = M.make_from_float (~-. 1. /. 3.) in
  Printf.printf "%s\n" (M.get_formatted_str (M.cos op))

Compile the above code with:

ocamlfind ocamlopt -o a.out -linkpkg -package mlmpfr example.ml -cclib -lmpfr

will results in:

$ ./a.out
9.449569463147377e-01