1 /** 2 * Copyright 2020-2023 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_DATA_CONCATENATE_OP_H_ 18 #define MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_DATA_CONCATENATE_OP_H_ 19 20 #include <memory> 21 #include <string> 22 #include <utility> 23 #include <vector> 24 25 #include "minddata/dataset/core/tensor.h" 26 #include "minddata/dataset/kernels/tensor_op.h" 27 28 namespace mindspore { 29 namespace dataset { 30 class ConcatenateOp : public TensorOp { 31 public: 32 /// Constructor to ConcatenateOp. 33 /// @param int8_t axis - axis to concatenate tensors along. 34 /// @param std::shared_ptr<Tensor> prepend - prepend tensor. 35 /// @param std::shared_ptr<Tensor> append -append tensor. ConcatenateOp(int8_t axis,std::shared_ptr<Tensor> prepend,std::shared_ptr<Tensor> append)36 ConcatenateOp(int8_t axis, std::shared_ptr<Tensor> prepend, std::shared_ptr<Tensor> append) 37 : axis_(axis), prepend_(std::move(prepend)), append_(std::move(append)) {} 38 39 ~ConcatenateOp() override = default; 40 41 /// Compute method allowing multiple tensors as inputs 42 /// @param TensorRow &input - input tensor rows 43 /// @param TensorRow *output - output tensor rows 44 Status Compute(const TensorRow &input, TensorRow *output) override; 45 46 /// Compute tensor output shape 47 /// @param std::vector<TensorShape> &inputs - vector of input tensor shapes 48 /// @param std::vector<TensorShape< &outputs - vector of output tensor shapes 49 Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override; 50 51 /// Number of inputs the tensor operation accepts NumInput()52 uint32_t NumInput() override { return 0; } 53 Name()54 std::string Name() const override { return kConcatenateOp; } 55 56 private: 57 int8_t axis_; 58 std::shared_ptr<Tensor> prepend_; 59 std::shared_ptr<Tensor> append_; 60 }; 61 } // namespace dataset 62 } // namespace mindspore 63 #endif // MINDSPORE_CONCATENATE_OP_H 64