EVOLUTION-MANAGER

Edit File: reverse_op.h

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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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,
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==============================================================================*/

#ifndef TENSORFLOW_CORE_KERNELS_REVERSE_OP_H_
#define TENSORFLOW_CORE_KERNELS_REVERSE_OP_H_

#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
#include "tensorflow/core/framework/tensor_types.h"

namespace tensorflow {
namespace functor {

// Functor used by ReverseOp to do the computations.
template <typename Device, typename T, int Dims>
struct Reverse {
  void operator()(const Device& d, typename TTypes<T, Dims>::ConstTensor input,
                  const Eigen::array<bool, Dims>& reverse_dims,
                  typename TTypes<T, Dims>::Tensor output) {
    output.device(d) = input.reverse(reverse_dims);
  }
};

template <typename Device, typename T>
struct Reverse<Device, T, 0> {
  void operator()(const Device& d, typename TTypes<T, 0>::ConstTensor input,
                  const Eigen::array<bool, 0>& reverse_dims,
                  typename TTypes<T, 0>::Tensor output) {
    // Reversing a scalar is copying it.
    output.device(d) = input;
  }
};

}  // namespace functor
}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_KERNELS_REVERSE_OP_H_