// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed 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.

#include <string>
#include <vector>
#include "paddle/fluid/lite/core/op_lite.h"
#include "paddle/fluid/lite/core/tensor.h"
#include "paddle/fluid/lite/utils/all.h"

namespace paddle {
namespace lite {
namespace operators {

struct ReluParam {
  Tensor* input{nullptr};
  Tensor* output{nullptr};
};

class ReluOp : public OpLite {
 public:
  ReluOp() {}

  bool CheckShape() const override;

  bool InferShape() const override;

  bool Run() override;

  bool Attach(const framework::OpDesc& opdesc,
              framework::Scope* scope) override;

  std::string DebugString() const override { return "tanh"; }

  void StaticPickKernel(const std::vector<OpTarget>& valid_targets) override {}

 private:
  mutable ReluParam param_;
};

}  // namespace operators
}  // namespace lite
}  // namespace paddle