61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
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/*******************************************************************************
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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 <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_lin_space)
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#include <ops/declarable/CustomOperations.h>
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namespace sd {
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namespace ops {
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CUSTOM_OP_IMPL(lin_space, 3, 1, false, 0, 0) {
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auto output = OUTPUT_VARIABLE(0);
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auto start = INPUT_VARIABLE(0);
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auto finish = INPUT_VARIABLE(1);
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auto numOfElements = INPUT_VARIABLE(2);
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if (numOfElements->e<Nd4jLong>(0) == 1) {
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output->assign(start);
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return Status::OK();
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}
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output->linspace(start->e<double>(0), (finish->e<double>(0) - start->e<double>(0)) / (numOfElements->e<Nd4jLong>(0) - 1.));
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return Status::OK();
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}
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DECLARE_SHAPE_FN(lin_space) {
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auto dataType = ArrayOptions::dataType(inputShape->at(0));
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Nd4jLong steps = INPUT_VARIABLE(2)->e<Nd4jLong>(0);
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return SHAPELIST(ConstantShapeHelper::getInstance()->vectorShapeInfo(steps, dataType));
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}
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DECLARE_TYPES(lin_space) {
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getOpDescriptor()
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->setAllowedInputTypes(0, {ALL_FLOATS, ALL_INTS})
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->setAllowedInputTypes(1, {ALL_FLOATS, ALL_INTS})
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->setAllowedInputTypes(2, {ALL_INTS})
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->setAllowedOutputTypes({ALL_FLOATS, ALL_INTS});
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}
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}
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}
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#endif
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