/*
 * --- GSMP-COPYRIGHT-NOTE-BEGIN ---
 * 
 * This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 * Please add additional copyright information _after_ the line containing
 * the GSMP-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
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 * 
 * GSMP: utility/include/ForEachIf.hh
 * General Sound Manipulation Program is Copyright (C) 2000 - 2004
 *   Valentin Ziegler and René Rebe
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2. A copy of the GNU General
 * Public License can be found in the file LICENSE.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANT-
 * ABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 * 
 * --- GSMP-COPYRIGHT-NOTE-END ---
 */

#ifndef UTILITY__FOREACHIF_HH__
#define UTILITY__FOREACHIF_HH__

namespace Utility
{

  template<typename ITER, typename PRED, typename FUNC>
  FUNC for_each_if (ITER first, ITER last, PRED p, FUNC f)
  {
    for ( ; first != last; ++first )
      if ( p ( *first ) )
	f (*first);
    return f;
  }


  template<typename ITER, typename FUNC>
  bool for_each_noerror (ITER first, ITER last, FUNC f)
  {
    bool success = true;
    for ( ; first != last && success; ++first )
      success &= f (*first);
    return success;
  }
  
  template<typename ITER, typename PRED, typename FUNC>
  bool for_each_if_noerror (ITER first, ITER last, PRED p, FUNC f)
  {
    bool success = true;
    for ( ; first != last && success; ++first )
      if ( p ( *first ) )
	success &= f (*first);
    return success;
  }



} // end namespace Utility


#endif // UTILITY__FOREACHIF_HH__