69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author sgazeos@gmail.com
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//
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#include <ops/declarable/helpers/multiUnique.h>
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#include <ops/declarable/CustomOperations.h>
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namespace nd4j {
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namespace ops {
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namespace helpers {
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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bool multiUnique(std::vector<NDArray*> const& inputList, nd4j::memory::Workspace *workspace) {
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Nd4jLong length = 0;
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std::vector<NDArray> reshaped(inputList.size());
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int pos = 0;
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Nd4jLong axis = 0;
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Context cContext(1);
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for (auto array: inputList) {
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if (array->dataType() != nd4j::DataType::INT32)
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throw std::runtime_error("multiUnique: this op support INT32 data type only.");
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reshaped[pos] = array->reshape(array->ordering(), {-1});
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cContext.setInputArray(pos, &reshaped[pos]);
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length += array->lengthOf();
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pos++;
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}
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NDArray arrayFull('c', {length}, nd4j::DataType::INT32);
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cContext.setOutputArray(0, &arrayFull);
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cContext.setIArguments(&axis, 1);
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nd4j::ops::concat opConcat;
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auto cResult = opConcat.execute(&cContext);
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if (Status::OK() != cResult)
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throw std::runtime_error("multiUnique: cannot execute concat op properly.");
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nd4j::ops::unique opUnique;
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auto uResult = opUnique.evaluate({&arrayFull});
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if (Status::OK() != uResult->status())
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throw std::runtime_error("multiUnique: cannot execute unique op properly.");
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auto uniqueVals = uResult->at(0);
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bool res = uniqueVals->lengthOf() == arrayFull.lengthOf();
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delete uResult;
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return res;
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}
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}
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}
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}
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