text: /*
  //@HEADER
  // *****************************************************************************
  //
  //                           group_collective_util.h
  //                       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
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  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
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  // *****************************************************************************
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  */
  
  #if !defined INCLUDED_VT_GROUP_COLLECTIVE_GROUP_COLLECTIVE_UTIL_H
  #define INCLUDED_VT_GROUP_COLLECTIVE_GROUP_COLLECTIVE_UTIL_H
  
  #include "vt/config.h"
  #include "vt/group/group_common.h"
  #include "vt/group/collective/group_collective_msg.h"
  
  namespace vt { namespace group {
  
  struct GroupCollSort {
    bool operator()(GroupCollectiveMsg* a, GroupCollectiveMsg* b) const;
  };
  
  }} /* end namespace vt::group */
  
  #endif /*INCLUDED_VT_GROUP_COLLECTIVE_GROUP_COLLECTIVE_UTIL_H*/
  