LICENSE

Copyright (C) 2015-2016 Bloomberg Finance L.P.
Copyright (C) 2017- Hongbo Zhang 

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

In addition to the permissions granted to you by the LGPL, you may combine
or link a "work that uses the Library" with a publicly distributed version
of this file to produce a combined library or application, then distribute
that combined work under the terms of your choosing, with no requirement
to comply with the obligations normally placed on you by section 4 of the
LGPL version 3 (or the corresponding section of a later version of the LGPL
should you choose to use a later version).

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.