Make utility function static.

git-svn-id: svn+ssh://idea.nguyen.vg/svn/sxsi/trunk/bp@1208 3cdefd35-fc62-479d-8e8d-bae585ffb9ca

Initial import of libbp

* Split Sadakane's code in its own repository.
* Compile with C compiler instead of C++
* Make the code C++ aware

git-svn-id: svn+ssh://idea.nguyen.vg/svn/sxsi/trunk/bp@1201 3cdefd35-fc62-479d-8e8d-bae585ffb9ca

Create a repository for Sadakane's BP library.

git-svn-id: svn+ssh://idea.nguyen.vg/svn/sxsi/trunk/bp@1200 3cdefd35-fc62-479d-8e8d-bae585ffb9ca