text: // Ceres Solver - A fast non-linear least squares minimizer
  // Copyright 2015 Google Inc. All rights reserved.
  // http://ceres-solver.org/
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  //
  // * Redistributions of source code must retain the above copyright notice,
  //   this list of conditions and the following disclaimer.
  // * Redistributions in binary form must reproduce the above copyright notice,
  //   this list of conditions and the following disclaimer in the documentation
  //   and/or other materials provided with the distribution.
  // * Neither the name of Google Inc. nor the names of its contributors may be
  //   used to endorse or promote products derived from this software without
  //   specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  //
  //
  // Author: sameeragarwal@google.com (Sameer Agarwal)
  //         keir@google.com (Keir Mierle)
  
  #include "ceres/trust_region_strategy.h"
  #include "ceres/dogleg_strategy.h"
  #include "ceres/levenberg_marquardt_strategy.h"
  
  namespace ceres {
  namespace internal {
  
  TrustRegionStrategy::~TrustRegionStrategy() {}
  
  TrustRegionStrategy* TrustRegionStrategy::Create(const Options& options) {
    switch (options.trust_region_strategy_type) {
      case LEVENBERG_MARQUARDT:
        return new LevenbergMarquardtStrategy(options);
      case DOGLEG:
        return new DoglegStrategy(options);
      default:
        LOG(FATAL) << "Unknown trust region strategy: "
                   << options.trust_region_strategy_type;
    }
  
    LOG(FATAL) << "Unknown trust region strategy: "
               << options.trust_region_strategy_type;
    return NULL;
  }
  
  }  // namespace internal
  }  // namespace ceres
  