text: // Copyright 2018 Xiaomi, Inc.  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.
  
  #ifndef MACE_OPS_SCALAR_MATH_H_
  #define MACE_OPS_SCALAR_MATH_H_
  
  #include <vector>
  
  #include "mace/core/operator.h"
  #include "mace/kernels/scalar_math.h"
  
  namespace mace {
  namespace ops {
  
  template <DeviceType D, typename T>
  class ScalarMathOp : public Operator<D, T> {
   public:
    ScalarMathOp(const OperatorDef &op_def, OpKernelContext *context)
        : Operator<D, T>(op_def, context),
          functor_(context,
                   static_cast<kernels::EltwiseType>(
                     OperatorBase::GetOptionalArg<int>(
                         "type", static_cast<int>(kernels::EltwiseType::NONE))),
                   OperatorBase::GetRepeatedArgs<float>("coeff"),
                   OperatorBase::GetOptionalArg<float>("scalar_input", 1.0),
                   OperatorBase::GetOptionalArg<int32_t>(
                       "scalar_input_index", 1)) {}
  
    MaceStatus Run(StatsFuture *future) override {
      const std::vector<const Tensor *> input_list = this->Inputs();
      Tensor *output = this->Output(0);
      return functor_(input_list, output, future);
    }
  
   private:
    kernels::ScalarMathFunctor<D, T> functor_;
  };
  
  }  // namespace ops
  }  // namespace mace
  
  #endif  // MACE_OPS_SCALAR_MATH_H_
  