1/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#ifndef TENSORFLOW_CORE_KERNELS_SEARCHSORTED_OP_H_
17#define TENSORFLOW_CORE_KERNELS_SEARCHSORTED_OP_H_
18
19#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
20#include "tensorflow/core/framework/op_kernel.h"
21#include "tensorflow/core/framework/tensor_types.h"
22#include "tensorflow/core/framework/types.h"
23#include "tensorflow/core/lib/core/errors.h"
24
25namespace tensorflow {
26namespace functor {
27
28template <typename Device, typename T, typename OutType>
29struct UpperBoundFunctor {
30 // Searches for values in sorted_inputs and returns the greatest possible
31 // index where they maintain sorted order.
32 static Status Compute(OpKernelContext* context,
33 const typename TTypes<T, 1>::ConstTensor& sorted_inputs,
34 const typename TTypes<T, 1>::ConstTensor& values,
35 int batch_size, int num_inputs, int num_values,
36 typename TTypes<OutType, 1>::Tensor* output);
37};
38
39template <typename Device, typename T, typename OutType>
40struct LowerBoundFunctor {
41 // Searches for values in sorted_inputs and returns the lowest possible
42 // index where they maintain sorted order.
43 static Status Compute(OpKernelContext* context,
44 const typename TTypes<T, 1>::ConstTensor& sorted_inputs,
45 const typename TTypes<T, 1>::ConstTensor& values,
46 int batch_size, int num_inputs, int num_values,
47 typename TTypes<OutType, 1>::Tensor* output);
48};
49} // namespace functor
50
51} // end namespace tensorflow
52#endif // TENSORFLOW_CORE_KERNELS_SEARCHSORTED_OP_H_
53