RDKit license
=============

src/RingPerception.cpp in this distribution contains ring-perception code
derived from RDKit's Code/GraphMol/FindRings.cpp at release
Release_2026_03_6, revision 474df5a9a894529c211410aa3e0f25863b1eb0b5, and is
redistributed under RDKit's BSD 3-Clause license. This file carries RDKit's
copyright notice and that license so that binary distributions reproduce
them, as condition 2 below requires. Every other file in this repository
remains under the MIT license in LICENSE.

Upstream copyright notice, retained verbatim from the top of
Code/GraphMol/FindRings.cpp at that release:

Copyright (C) 2003-2021 Greg Landrum and other RDKit contributors

 @@ All Rights Reserved @@
This file is part of the RDKit.
The contents are covered by the terms of the BSD license
which is included in the file license.txt, found at the root
of the RDKit source tree.

License text, retained verbatim from license.txt at the root of the RDKit
source tree at that release:

BSD 3-Clause License

Copyright (c) 2006-2015, Rational Discovery LLC, Greg Landrum, and Julie Penzotti and others
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
