text: /*******************************************************************************
   * 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 GS <sgazeos@gmail.com>
  //
  
  #include <ops/declarable/helpers/sequence_mask.h>
  
  namespace nd4j {
  namespace ops {
  namespace helpers {
  
      template <typename T>
      static void sequenceMask_(NDArray* input, NDArray* output, int maxIndex) {
          PRAGMA_OMP_PARALLEL_FOR_SIMD_COLLAPSE(2)
          for (Nd4jLong i = 0; i < maxIndex; i++)
              for(Nd4jLong k = 0; k < input->lengthOf(); k++)
                  if (i < input->e<int>(k))
                      output->p<T>(k * maxIndex + i,  T(1.0f));
      }
  
      void sequenceMask(NDArray* input, NDArray* output, int maxIndex) {
          BUILD_SINGLE_SELECTOR(input->dataType(), sequenceMask_, (input, output, maxIndex), LIBND4J_TYPES);
      }
  
      BUILD_SINGLE_TEMPLATE(template void sequenceMask_, (NDArray* input, NDArray* output, int maxIndex), LIBND4J_TYPES);
  }
  }
  }