AUD_Set.cpp

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/*
 * Copyright 2009-2011 Jörg Hermann Müller
 *
 * This file is part of AudaSpace.
 *
 * Audaspace 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * AudaSpace is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Audaspace; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
 
#include <set>
 
#include "AUD_Set.h"
 
void *AUD_createSet()
{
  return new std::set<void *>();
}
 
void AUD_destroySet(void *set)
{
  delete reinterpret_cast<std::set<void *> *>(set);
}
 
char AUD_removeSet(void *set, void *entry)
{
  if (set)
    return reinterpret_cast<std::set<void *> *>(set)->erase(entry);
  return 0;
}
 
void AUD_addSet(void *set, void *entry)
{
  if (entry)
    reinterpret_cast<std::set<void *> *>(set)->insert(entry);
}
 
void *AUD_getSet(void *set)
{
  if (set) {
    std::set<void *> *rset = reinterpret_cast<std::set<void *> *>(set);
    if (!rset->empty()) {
      std::set<void *>::iterator it = rset->begin();
      void *result = *it;
      rset->erase(it);
      return result;
    }
  }
 
  return (void *)0;
}