cavis/libnd4j/include/ops/declarable/generic/boolean/is_non_decreasing.cpp

/* ******************************************************************************
 *
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 ******************************************************************************/

//
//  @author @cpuheater
//

#include <system/op_boilerplate.h>
#if NOT_EXCLUDED(OP_is_non_decreasing)

#include <ops/declarable/CustomOperations.h>
#include <ops/declarable/helpers/compare_elem.h>

namespace sd {
    namespace ops {
        BOOLEAN_OP_IMPL(is_non_decreasing, 1, true) {
            auto input = INPUT_VARIABLE(0);

            // in case of empty input there's nothing to do
            if (input->isEmpty())
                return ND4J_STATUS_TRUE;

            bool isNonDecreasing = true;

            sd::ops::helpers::compare_elem(block.launchContext(), input, false, isNonDecreasing);

            if (isNonDecreasing)
                return ND4J_STATUS_TRUE;
            else
                return ND4J_STATUS_FALSE;
        }

        DECLARE_TYPES(is_non_decreasing) {
            getOpDescriptor()
                    ->setAllowedInputTypes(0, DataType::ANY)
                    ->setAllowedOutputTypes(0, DataType::BOOL);
        }
    }
}

#endif