text: /* ******************************************************************************
   *
   *
   * 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 raver119@gmail.com
  //
  
  #include <system/op_boilerplate.h>
  #if NOT_EXCLUDED(OP_rationaltanh)
  
  #include <ops/declarable/CustomOperations.h>
  #include <ops/declarable/helpers/legacy_helpers.h>
  
  namespace sd {
      namespace ops {
          CONFIGURABLE_OP_IMPL(rationaltanh, 1, 1, true, 0, 0) {
              auto input = INPUT_VARIABLE(0);
              auto output = OUTPUT_VARIABLE(0);
  
              input->applyTransform(sd::transform::RationalTanh, *output);
              STORE_RESULT(output);
  
              return Status::OK();
          }
  
          DECLARE_TYPES(rationaltanh) {
              getOpDescriptor()
                      ->setAllowedInputTypes(0, DataType::ANY)
                      ->setAllowedOutputTypes(0, {ALL_FLOATS});
          }
  
          CONFIGURABLE_OP_IMPL(rationaltanh_bp, 2, 1, true, 0, 0) {
              auto input = INPUT_VARIABLE(0);
              auto epsilon = INPUT_VARIABLE(1);
  
              auto z = OUTPUT_VARIABLE(0);
  
              //input->applyPairwiseTransform(pairwise::RationalTanhDerivativeE, epsilon, z, nullptr);
              helpers::rationalTanhDerivative(block.launchContext(), input, epsilon, z);
              return Status::OK();
          }
  
          DECLARE_TYPES(rationaltanh_bp) {
              getOpDescriptor()
                      ->setAllowedInputTypes(0, DataType::ANY)
                      ->setAllowedInputTypes(1, {DataType::FLOAT32, DataType ::DOUBLE, DataType::HALF})
                      ->setAllowedOutputTypes(0, {DataType::FLOAT32, DataType ::DOUBLE, DataType::HALF});
          }
      }
  }
  
  #endif