1 /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_KERNELS_REVERSE_OP_H_ 17 #define TENSORFLOW_KERNELS_REVERSE_OP_H_ 18 19 #include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor" 20 #include "tensorflow/core/framework/tensor_types.h" 21 22 namespace tensorflow { 23 namespace functor { 24 25 // Functor used by ReverseOp to do the computations. 26 template <typename Device, typename T, int Dims> 27 struct Reverse { 28 void operator()(const Device& d, typename TTypes<T, Dims>::ConstTensor input, 29 const Eigen::array<bool, Dims>& reverse_dims, 30 typename TTypes<T, Dims>::Tensor output) { 31 output.device(d) = input.reverse(reverse_dims); 32 } 33 }; 34 35 template <typename Device, typename T> 36 struct Reverse<Device, T, 0> { 37 void operator()(const Device& d, typename TTypes<T, 0>::ConstTensor input, 38 const Eigen::array<bool, 0>& reverse_dims, 39 typename TTypes<T, 0>::Tensor output) { 40 // Reversing a scalar is copying it. 41 output.device(d) = input; 42 } 43 }; 44 45 } // namespace functor 46 } // namespace tensorflow 47 48 #endif // TENSORFLOW_KERNELS_MIRROR_OP_H_ 49
