70 lines
3.6 KiB
C++
70 lines
3.6 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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#ifndef DEV_TESTS_SHAPEBUILDERS_H
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#define DEV_TESTS_SHAPEBUILDERS_H
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#include <vector>
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#include <helpers/shape.h>
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#include <pointercast.h>
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#include <memory/Workspace.h>
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#include <array/DataType.h>
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#include <array/ArrayOptions.h>
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namespace nd4j {
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class ND4J_EXPORT ShapeBuilders {
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public:
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static Nd4jLong* createScalarShapeInfo(nd4j::DataType dataType, nd4j::memory::Workspace* workspace = nullptr);
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static Nd4jLong* createVectorShapeInfo(const nd4j::DataType dataType, const Nd4jLong length, nd4j::memory::Workspace* workspace = nullptr);
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/**
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* create shapeInfo for given order basing on shape stored in shapeOnly vector
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* memory allocation for shapeInfo is on given workspace
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*/
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static Nd4jLong* createShapeInfo(const nd4j::DataType dataType, const char order, int rank, const Nd4jLong* shapeOnly, memory::Workspace* workspace = nullptr);
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static Nd4jLong* createShapeInfo(const nd4j::DataType dataType, const char order, const std::vector<Nd4jLong>& shapeOnly, memory::Workspace* workspace = nullptr);
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static Nd4jLong* createShapeInfo(const nd4j::DataType dataType, const char order, const std::initializer_list<Nd4jLong>& shapeOnly, memory::Workspace* workspace = nullptr);
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/**
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* allocates memory for new shapeInfo and copy all information from inShapeInfo to new shapeInfo
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* if copyStrides is false then strides for new shapeInfo are recalculated
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*/
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static Nd4jLong* copyShapeInfo(const Nd4jLong* inShapeInfo, const bool copyStrides, memory::Workspace* workspace = nullptr);
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static Nd4jLong* copyShapeInfoAndType(const Nd4jLong* inShapeInfo, const DataType dtype, const bool copyStrides, memory::Workspace* workspace = nullptr);
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static Nd4jLong* copyShapeInfoAndType(const Nd4jLong* inShapeInfo, const Nd4jLong* shapeInfoToGetTypeFrom, const bool copyStrides, memory::Workspace* workspace = nullptr);
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/**
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* allocates memory for new shapeInfo and copy all information from inShapeInfo to new shapeInfo except dimensions in dimsToExclude (unit dimensions) and corresponding strides
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* for example inShapeInfo is {3, 2,1,3,1,4, 12,12,4,4,1, 16384,1,99}, dimsToExclude = {2,3}, dimsSize = 2
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* then outShapeInfo will contain {3, 2,3,4, 12,4,1, 16384,1,99}
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*/
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static Nd4jLong* copyShapeInfoWithoutUnites(const Nd4jLong* inShapeInfo, const int dimsSize, const int* dimsToExclude, memory::Workspace* workspace = nullptr);
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static Nd4jLong* emptyShapeInfo(const nd4j::DataType dataType, memory::Workspace* workspace = nullptr);
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static Nd4jLong* emptyShapeInfo(const nd4j::DataType dataType, const char order, const std::vector<Nd4jLong> &shape, memory::Workspace* workspace = nullptr);
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};
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}
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#endif //DEV_TESTS_SHAPEBUILDERS_H
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