100 lines
3.3 KiB
C++
100 lines
3.3 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 raver119@gmail.com
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//
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#include <array/ConstantDescriptor.h>
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#include <DataTypeUtils.h>
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#include <stdexcept>
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namespace nd4j {
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ConstantDescriptor::ConstantDescriptor(double* values, int length) {
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for (int e = 0; e < length; e++)
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_floatValues.emplace_back(values[e]);
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}
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ConstantDescriptor::ConstantDescriptor(Nd4jLong * values, int length) {
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for (int e = 0; e < length; e++)
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_integerValues.emplace_back(values[e]);
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}
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ConstantDescriptor::ConstantDescriptor(std::initializer_list<double> values) {
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_floatValues = values;
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}
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ConstantDescriptor::ConstantDescriptor(std::vector<Nd4jLong> &values) {
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_integerValues = values;
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}
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ConstantDescriptor::ConstantDescriptor(std::vector<double> &values) {
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_floatValues = values;
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}
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// equal to operator
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bool ConstantDescriptor::operator==(const ConstantDescriptor &other) const {
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return std::tie(_floatValues, _integerValues) == std::tie(other._floatValues, other._integerValues);
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}
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// less than operator
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bool ConstantDescriptor::operator<(const ConstantDescriptor &other) const {
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return std::tie(_floatValues, _integerValues) < std::tie(other._floatValues, other._integerValues);
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}
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bool ConstantDescriptor::isInteger() const {
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return !_integerValues.empty();
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}
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bool ConstantDescriptor::isFloat() const {
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return !_floatValues.empty();
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}
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const std::vector<Nd4jLong>& ConstantDescriptor::integerValues() const {
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return _integerValues;
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}
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const std::vector<double>& ConstantDescriptor::floatValues() const {
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return _floatValues;
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}
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Nd4jLong ConstantDescriptor::length() const {
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return isInteger() ? _integerValues.size() : isFloat() ? _floatValues.size() : 0L;
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}
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}
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namespace std {
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size_t hash<nd4j::ConstantDescriptor>::operator()(const nd4j::ConstantDescriptor &k) const {
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using std::hash;
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// Compute individual hash values for first,
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// second and third and combine them using XOR
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// and bit shifting:
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size_t hashVal = 0;
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size_t i = 0;
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if (k.isInteger()) {
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for (auto v: k.integerValues()) {
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hashVal ^= std::hash<Nd4jLong>()(v) + 0x9e3779b9 + (hashVal << 6) + (hashVal >> 2);
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}
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}
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else {
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for (auto v: k.floatValues()) {
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hashVal ^= std::hash<double>()(v) + 0x9e3779b9 + (hashVal << 6) + (hashVal >> 2);
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}
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}
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return hashVal;
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}
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}
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