text: //
  // Copyright (C) 2014, 2015 Ableton AG, Berlin. All rights reserved.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a
  // copy of this software and associated documentation files (the "Software"),
  // to deal in the Software without restriction, including without limitation
  // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  // and/or sell copies of the Software, and to permit persons to whom the
  // Software is furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  // DEALINGS IN THE SOFTWARE.
  //
  
  /*!
   * @file
   */
  
  #pragma once
  
  #include <atria/xform/transducer/map.hpp>
  #include <atria/xform/transducer/count.hpp>
  #include <atria/prelude/comp.hpp>
  
  namespace atria {
  namespace xform {
  
  /*!
   * Similar to clojure.core/map-indexed$1
   */
  template <typename MappingT>
  constexpr auto map_indexed(MappingT&& mapping)
    -> ABL_DECLTYPE_RETURN(
      comp(
        count(),
        map(std::forward<MappingT>(mapping))))
  
  } // namespace xform
  } // namespace atria
  