/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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; either version 2
 * of the License, or (at your option) any later version.

 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

/* Heap-like managed structure */

#ifndef SCI_ENGINE_HEAPMGR_H
#define SCI_ENGINE_HEAPMGR_H

namespace Sci {

enum { HEAPENTRY_INVALID = -1 };

// FIXME: We write (i == 0 || i > 0) instead of (i >= 0) to silence certain annoying warnings:
// generated by GCC: "comparison is always true due to limited range of data type".
#define ENTRY_IS_VALID(t, i) ((i == 0 || i > 0) && (i) < (t)->max_entry && (t)->table[(i)].next_free == (i))


} // End of namespace Sci

#endif // SCI_ENGINE_HEAPMGR_H