cavis/libnd4j/include/array/impl/ShapeList.cpp

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/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// @author raver119@gmail.com
//
#include <system/pointercast.h>
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#include <array/ShapeList.h>
namespace sd {
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//ShapeList::ShapeList(bool autoRemovable) {
// _autoremovable = autoRemovable;
// }
ShapeList::ShapeList(Nd4jLong* shape) {
if (shape != nullptr)
_shapes.push_back(shape);
}
ShapeList::~ShapeList() {
if (_autoremovable)
destroy();
}
ShapeList::ShapeList(std::initializer_list<Nd4jLong*> shapes) {
for (auto v:shapes)
_shapes.push_back(v);
}
ShapeList::ShapeList(std::initializer_list<Nd4jLong*> shapes, bool isWorkspace) : ShapeList(shapes){
_workspace = isWorkspace;
}
ShapeList::ShapeList(std::vector<Nd4jLong*>& shapes) {
for (auto v:shapes)
_shapes.push_back(v);
}
std::vector<Nd4jLong*>* ShapeList::asVector() {
return &_shapes;
}
void ShapeList::destroy() {
if (_destroyed)
return;
if (!_workspace)
for (auto v:_shapes)
if(v != nullptr)
delete[] v;
_destroyed = true;
}
int ShapeList::size() {
return (int) _shapes.size();
}
Nd4jLong* ShapeList::at(int idx) {
if (_shapes.size() <= idx)
throw std::runtime_error("Can't find requested variable by index");
return _shapes.at(idx);
}
void ShapeList::push_back(Nd4jLong *shape) {
_shapes.push_back(shape);
}
void ShapeList::push_back(std::vector<Nd4jLong>& shape) {
int dLen = shape::shapeInfoLength(shape.at(0));
if (shape.size() != dLen)
throw std::runtime_error("Bad shape was passed in");
auto nShape = new Nd4jLong[dLen];
std::memcpy(nShape, shape.data(), shape::shapeInfoByteLength(shape.at(0)));
_shapes.push_back(nShape);
}
void ShapeList::detach() {
for (int e = 0; e < _shapes.size(); e++) {
_shapes[e] = shape::detachShape(_shapes[e]);
}
_autoremovable = true;
_workspace = false;
}
}