text: /*
   * #%L
   * %%
   * Copyright (C) 2011 - 2016 BMW Car IT GmbH
   * %%
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://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.
   * #L%
   */
  
  #ifndef MUESLI_DETAIL_ISTYPEWITHINLIST_H_
  #define MUESLI_DETAIL_ISTYPEWITHINLIST_H_
  
  #include <type_traits>
  
  namespace muesli
  {
  namespace detail
  {
  
  template <typename...>
  struct IsTypeWithinList
  {
      static constexpr bool value = false;
  };
  
  template <typename Needle, typename Head, typename... Haystack>
  struct IsTypeWithinList<Needle, Head, Haystack...>
  {
      static constexpr bool value =
              std::is_same<Needle, Head>::value || IsTypeWithinList<Needle, Haystack...>::value;
  };
  
  } // namespace detail
  } // namespace muesli
  
  #endif // MUESLI_DETAIL_ISTYPEWITHINLIST_H_
  