68 lines
2.5 KiB
C++
68 lines
2.5 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 <op_boilerplate.h>
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#if NOT_EXCLUDED(OP_)
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#include <ops/declarable/CustomOperations.h>
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#include<ops/declarable/helpers/flatten.h>
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namespace nd4j {
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namespace ops {
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CUSTOM_OP_IMPL(flatten, -1, 1, false, 0, 1) {
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auto output = OUTPUT_VARIABLE(0);
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auto zType = output->dataType();
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auto xType = INPUT_VARIABLE(0)->dataType();
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REQUIRE_TRUE(xType == zType, 0, "Flatten: output array must have same data type as input arrays");
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std::vector<NDArray*> arrays(block.width());
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for (int e = 0; e < block.width(); e++) {
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auto input = INPUT_VARIABLE(e);
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REQUIRE_TRUE(xType == input->dataType(), 0, "Flatten: all input arrays must have the same data type");
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arrays[e] = input;
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}
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char order = (char) INT_ARG(0);
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helpers::flatten(arrays, output, order);
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return Status::OK();
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}
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DECLARE_TYPES(flatten) {
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getOpDescriptor()->setAllowedInputTypes({ALL_INTS, ALL_FLOATS, nd4j::DataType::BOOL});
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getOpDescriptor()->setAllowedOutputTypes(0, {ALL_FLOATS, ALL_INTS, nd4j::DataType::BOOL});
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}
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DECLARE_SHAPE_FN(flatten) {
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Nd4jLong length = 0;
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nd4j::DataType dtype = ArrayOptions::dataType(inputShape->at(0));
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for (int e = 0; e < inputShape->size(); e++) {
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length += shape::length(inputShape->at(e));
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REQUIRE_TRUE(dtype == ArrayOptions::dataType(inputShape->at(e)), 0, "Flatten: all input arrays must have the same datatype");
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}
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return SHAPELIST(ConstantShapeHelper::getInstance()->vectorShapeInfo(length, dtype));
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}
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}
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}
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#endif
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