org.nd4j.linalg.api.ops.custom.Triu Maven / Gradle / Ivy
/*
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* *
* * 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.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
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* * SPDX-License-Identifier: Apache-2.0
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*/
package org.nd4j.linalg.api.ops.custom;
import lombok.NoArgsConstructor;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import java.util.Collections;
import java.util.List;
@NoArgsConstructor
public class Triu extends DynamicCustomOp {
private int diag = 0;
public Triu(SameDiff sameDiff, SDVariable in, int diag) {
super(sameDiff, new SDVariable[]{in});
addIArgument(diag);
this.diag=diag;
}
public Triu(SameDiff sameDiff, SDVariable in) {
super(sameDiff, new SDVariable[]{in});
}
public Triu(INDArray input, int diag) {
super(new INDArray[]{input}, null);
addIArgument(diag);
this.diag=diag;
}
@Override
public String opName() {
return "triu";
}
@Override
public List calculateOutputDataTypes(List inputDataTypes) {
return Collections.singletonList(arg(0).dataType());
}
@Override
public List doDiff(List f1) {
return new TriuBp(sameDiff, arg(0), f1.get(0), diag).outputs();
}
}