1 | /* Copyright 2019 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_CORE_KERNELS_NEXTAFTER_OP_H_ |
17 | #define TENSORFLOW_CORE_KERNELS_NEXTAFTER_OP_H_ |
18 | |
19 | #include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor" |
20 | #include "tensorflow/core/kernels/cwise_ops.h" |
21 | |
22 | namespace tensorflow { |
23 | namespace functor { |
24 | |
25 | template <typename T> |
26 | struct nextafter_op { |
27 | // GPU kernels on ROCm may have issues including standard C++ APIs. Use |
28 | // specialized member functions and invoke HIP runtime APIs instead. |
29 | #if !TENSORFLOW_USE_ROCM |
30 | EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const T operator()(const T& x1, |
31 | const T& x2) const { |
32 | return std::nextafter(x1, x2); |
33 | } |
34 | #else |
35 | EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const float operator()( |
36 | const float& x1, const float& x2) const { |
37 | return nextafterf(x1, x2); |
38 | } |
39 | EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const double operator()( |
40 | const double& x1, const double& x2) const { |
41 | return nextafter(x1, x2); |
42 | } |
43 | #endif |
44 | }; |
45 | |
46 | template <typename T> |
47 | struct nextafter : base<T, nextafter_op<T>> {}; |
48 | |
49 | } // namespace functor |
50 | } // namespace tensorflow |
51 | |
52 | #endif // TENSORFLOW_CORE_KERNELS_NEXTAFTER_OP_H_ |
53 | |