cavis/libnd4j/include/ops/declarable/generic/shape/shape.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/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_shape)
#include <ops/declarable/CustomOperations.h>
namespace sd {
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namespace ops {
CUSTOM_OP_IMPL(shape_of, 1, 1, false, 0, 0) {
auto x = INPUT_VARIABLE(0);
auto z = OUTPUT_VARIABLE(0);
for (int e = 0; e < x->rankOf(); e++)
z->p(e, x->sizeAt(e));
STORE_RESULT(z);
return Status::OK();
};
DECLARE_SYN(shape, shape_of);
DECLARE_SHAPE_FN(shape_of) {
auto inShape = inputShape->at(0);
// LONG by default
auto dtype = DataType::INT64;
if (block.numI() > 0)
dtype = DataTypeUtils::fromInt(INT_ARG(0));
return SHAPELIST(ConstantShapeHelper::getInstance()->vectorShapeInfo(shape::rank(inShape), dtype));
};
DECLARE_TYPES(shape_of) {
getOpDescriptor()
->setAllowedInputTypes(sd::DataType::ANY)
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->setAllowedOutputTypes({ALL_INTS});
}
}
}
#endif