python/include/py_object_lt.hpp

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

#ifndef _PY_OBJECT_LT_HPP_
#define _PY_OBJECT_LT_HPP_

#include <pybind11/pybind11.h>

/*
  This header defines a less than operator on generic python
  objects. The implementation calls the object's built-in __lt__()
  method. If that method is not defined, the call may fail.
*/

struct py_object_lt {
  bool operator()(const pybind11::object& a, const pybind11::object& b) const {
    return a < b;
  }
};

#endif // _PY_OBJECT_LT_HPP_