71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/* ******************************************************************************
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*
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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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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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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 raver119@gmail.com
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//
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#ifndef DEV_TESTS_FLATTEN_H
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#define DEV_TESTS_FLATTEN_H
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#include <vector>
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#include <array/NDArray.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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//////////////////////////////////////////////////////////////////////
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void flatten(sd::LaunchContext *context, std::vector<NDArray*> &inputs, NDArray *output, char order);
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//////////////////////////////////////////////////////////////////////
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INLINEDEF _CUDA_HD Nd4jLong getIndexOffsetOrdered(Nd4jLong index, const Nd4jLong *shapeInfo, const char order) {
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Nd4jLong offset = 0;
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if (order == 'c') {
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for(uint i = shapeInfo[0]; i > 1; --i) {
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offset += (index % shapeInfo[i]) * shapeInfo[i + shapeInfo[0]];
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index /= shapeInfo[i];
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}
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offset += index * shapeInfo[1 + shapeInfo[0]]; // last iteration
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}
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else {
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for(uint i = 1; i < shapeInfo[0]; ++i) {
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offset += (index % shapeInfo[i]) * shapeInfo[i + shapeInfo[0]];
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index /= shapeInfo[i];
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}
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offset += index * shapeInfo[2 * shapeInfo[0]]; // last iteration
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}
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return offset;
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}
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}
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}
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}
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#endif //DEV_TESTS_FLATTEN_H
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