85 lines
2.2 KiB
C++
85 lines
2.2 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 raver119@gmail.com
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//
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#include <indexing/NDIndex.h>
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namespace nd4j {
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bool NDIndex::isInterval() {
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return false;
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}
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Nd4jLong NDIndex::stride() {
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return _stride;
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}
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nd4j::NDIndexAll::NDIndexAll() : nd4j::NDIndex() {
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_indices.push_back(-1);
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}
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nd4j::NDIndexPoint::NDIndexPoint(Nd4jLong point) : nd4j::NDIndex() {
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this->_indices.push_back(point);
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}
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bool NDIndexAll::isInterval() {
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return false;
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}
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bool NDIndexPoint::isInterval() {
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return false;
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}
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bool NDIndexInterval::isInterval() {
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return true;
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}
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nd4j::NDIndexInterval::NDIndexInterval(Nd4jLong start, Nd4jLong end, Nd4jLong stride) : nd4j::NDIndex() {
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this->_stride = stride;
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for (int e = start; e < end; e+= stride)
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this->_indices.push_back(e);
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}
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bool nd4j::NDIndex::isAll() {
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return _indices.size() == 1 && _indices.at(0) == -1;
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}
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bool nd4j::NDIndex::isPoint() {
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return _indices.size() == 1 && _indices.at(0) >= 0;
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}
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std::vector<Nd4jLong> &nd4j::NDIndex::getIndices() {
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return _indices;
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}
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nd4j::NDIndex *nd4j::NDIndex::all() {
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return new NDIndexAll();
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}
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nd4j::NDIndex *nd4j::NDIndex::point(Nd4jLong pt) {
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return new NDIndexPoint(pt);
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}
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nd4j::NDIndex *nd4j::NDIndex::interval(Nd4jLong start, Nd4jLong end, Nd4jLong stride) {
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return new NDIndexInterval(start, end, stride);
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}
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}
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