cavis/libnd4j/include/ops/declarable/generic/activations/identity.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 <op_boilerplate.h>
#if NOT_EXCLUDED(OP_identity)
#include <ops/declarable/CustomOperations.h>
namespace nd4j {
namespace ops {
OP_IMPL(identity, 1, 1, true) {
auto z = OUTPUT_VARIABLE(0);
if (!block.isInplace()) {
auto first = INPUT_VARIABLE(0);
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// we hope for memcpy here
z->assign(first);
}
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return Status::OK();
}
DECLARE_SYN(linear, identity);
DECLARE_TYPES(identity) {
getOpDescriptor()
->setAllowedInputTypes(0, DataType::ANY)
->setSameMode(true);
}
OP_IMPL(identity_bp, 2, 1, true) {
auto first = INPUT_VARIABLE(0);
auto epsilon = INPUT_VARIABLE(1);
auto z = OUTPUT_VARIABLE(0);
z->assign(epsilon);
return Status::OK();
}
DECLARE_SYN(LinearGrad, identity_bp);
DECLARE_TYPES(identity_bp) {
getOpDescriptor()
->setAllowedInputTypes(0, DataType::ANY)
->setAllowedInputTypes(1, {ALL_FLOATS})
->setAllowedOutputTypes(0, {ALL_FLOATS});
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}
}
}
#endif