/************************************************************
*
* 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.
*
*************************************************************/

/*interface file for swig */

%module model_metric
%{
#include "singa/model/metric.h"
using singa::Tensor;
%}

namespace singa {
class Metric {
 public:
  Metric() = default;
  virtual ~Metric() {}
  virtual Tensor Forward(const Tensor& prediction, const Tensor& target) = 0;
  float Evaluate(const Tensor& prediction, const Tensor& target);
};
class Accuracy : public Metric {
 public:
  Tensor Forward(const Tensor& prediction, const Tensor& target);
};

}