text: /*
  //@HEADER
  // *****************************************************************************
  //
  //                                  reduce.cc
  //                       DARMA/vt => Virtual Transport
  //
  // Copyright 2019-2021 National Technology & Engineering Solutions of Sandia, LLC
  // (NTESS). Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
  // Government retains certain rights in this software.
  //
  // 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 the copyright holder 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.
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  // *****************************************************************************
  //@HEADER
  */
  
  #include "vt/config.h"
  #include "vt/collective/reduce/reduce.h"
  #include "vt/collective/reduce/reduce_state.h"
  
  #include <tuple>
  #include <unordered_map>
  
  namespace vt { namespace collective { namespace reduce {
  
  Reduce::Reduce(detail::ReduceScope const& in_scope)
    : tree::Tree(tree::tree_cons_tag_t),
      scope_(in_scope),
      next_seq_(1)
  {
    vt_debug_print(
      normal, reduce,
      "Reduce constructor: children={}, parent={}\n",
      getNumChildren(), getParent()
    );
  }
  
  Reduce::Reduce(
    detail::ReduceScope const& in_scope, collective::tree::Tree* in_tree
  ) : tree::Tree(*in_tree),
      scope_(in_scope),
      next_seq_(1)
  {
    vt_debug_print(
      normal, reduce,
      "Reduce constructor: children={}, parent={}\n",
      getNumChildren(), getParent()
    );
  }
  
  detail::ReduceStamp Reduce::generateNextID() {
    *next_seq_ = *next_seq_ + 1;
    detail::ReduceStamp stamp;
    stamp.init<detail::StrongSeq>(next_seq_);
    return stamp;
  }
  
  }}} /* end namespace vt::collective::reduce */
  