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+
+/*=============================================================================*\
+ * File: gfsmSet.h
+ * Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
+ * Description: finite state machine library
+ *
+ * Copyright (c) 2004-2007 Bryan Jurish.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *=============================================================================*/
+
+/** \file gfsmSet.h
+ *  \brief Abstract set type using GTree
+ */
+
+#ifndef _GFSM_SET_H
+#define _GFSM_SET_H
+
+#include <gfsmMem.h>
+
+/*======================================================================
+ * Types
+ */
+/** \brief Type for sets of pointers
+ *  \detail really just an ugly wrapper for GTree
+ */
+typedef GTree gfsmSet;
+
+
+/*======================================================================
+ * Constructors etc.
+ */
+///\name gfsmSet: Constructors etc.
+//@{
+/** Create and return a new set */
+GFSM_INLINE
+gfsmSet *gfsm_set_new_full(GCompareDataFunc key_cmp_func, gpointer key_cmp_data, GDestroyNotify key_free_func);
+
+/** gfsm_set_new(key_compare_func): create and return a new set
+ *  (returned set will not free elements)
+ */
+GFSM_INLINE
+gfsmSet *gfsm_set_new(GCompareFunc key_cmp_func);
+
+/** Copy set \a src to \a dst. \returns \a dst */
+GFSM_INLINE
+gfsmSet *gfsm_set_copy(gfsmSet *dst, gfsmSet *src);
+
+/** Utilitiy for gfsm_set_copy() */
+gboolean gfsm_set_copy_foreach_func(gpointer key, gpointer value, gfsmSet *dst);
+
+/** clear a set */
+void gfsm_set_clear(gfsmSet *set);
+
+/** Destroy a set
+ *  \code void gfsm_set_free(gfsmSet *set); \endcode
+ */
+#define gfsm_set_free g_tree_destroy
+
+//@}
+
+
+/*======================================================================
+ * Accessors
+ */
+///\name gfsmSet: Accessors
+//@{
+/** check set membership */
+#define gfsm_set_contains(set,key) g_tree_lookup(set,key)
+
+/** insert a new key into the set */
+#define gfsm_set_insert(set,key) g_tree_insert(set,key,(gpointer)1)
+
+/** get size of set */
+#define gfsm_set_size(set) g_tree_nnodes(set)
+
+/** Remove an element from a set */
+#define gfsm_set_remove(set,key) g_tree_remove(set,key)
+
+/** Traversal (see g_tree_foreach) */
+#define gfsm_set_foreach(set,func,data) g_tree_foreach(set,func,data)
+//@}
+
+/*======================================================================
+ * set: Algebra
+ */
+///\name gfsmSet: Algebra
+//@{
+
+/** Add all elements of set \a set2 to \a set1.
+ *  If \a dupfunc is non-NULL, it will be used to copy elements from \a set2,
+ *  otherwise elements will be copied as literal gpointer values.
+ * \returns altered \a set1
+ */
+GFSM_INLINE
+gfsmSet *gfsm_set_union(gfsmSet *set1, gfsmSet *set2, gfsmDupFunc dupfunc);
+
+/** Remove all elements in \a set2 from \a set1.
+ * \returns altered \a set1 */
+GFSM_INLINE
+gfsmSet *gfsm_set_difference(gfsmSet *set1, gfsmSet *set2);
+
+/** Remove all elements from \a set1 which are not also in \a set2.
+ * \returns altered \a set1 */
+gfsmSet *gfsm_set_intersection(gfsmSet *set1, gfsmSet *set2);
+
+//@}
+
+
+/*======================================================================
+ * Converters
+ */
+///\name gfsmSet: converters
+//@{
+
+/** Get a GSList of a set's elements */
+GFSM_INLINE
+GSList *gfsm_set_to_slist(gfsmSet *set);
+
+/** Low-level utilitity for gfsm_set_to_slist() */
+gboolean gfsm_set_to_slist_foreach_func(gpointer key, gpointer value, GSList **dst);
+
+/** Append a set's elements to a GPtrArray */
+GFSM_INLINE
+void gfsm_set_to_ptr_array(gfsmSet *set, GPtrArray *array);
+
+/** Low-level foreach utilitity for gfsm_set_to_array() */
+gboolean gfsm_set_to_ptr_array_foreach_func(gpointer key, gpointer value, GPtrArray *dst);
+//@}
+
+/*======================================================================
+ * Debugging
+ */
+#ifdef GFSM_DEBUG_ENABLED
+#include <stdio.h>
+
+///\name gfsmSet: debugging
+//@{
+
+/** Dump contents of a gfsmSet using '%u' to a FILE* */
+void gfsm_set_print_uint(gfsmSet *set, FILE *f);
+
+//@}
+#endif /* GFSM_DEBUG_ENABLED */
+
+//-- inline definitions
+#ifdef GFSM_INLINE_ENABLED
+# include <gfsmSet.hi>
+#endif
+
+#endif /* _GFSM_SET_H */