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/work/compile/navit/src/navit/fib-1.1/fib.h

00001 /*-
00002  * Copyright 1997, 1998-2003 John-Mark Gurney.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  *
00014  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
00015  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00016  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00017  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00018  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00019  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00020  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00021  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00022  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00023  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00024  * SUCH DAMAGE.
00025  *
00026  *      $Id: fib.h,v 1.1 2005-12-02 10:41:56 martin-s Exp $
00027  *
00028  */
00029 
00030 #ifndef _FIB_H_
00031 #define _FIB_H_
00032 
00033 struct fibheap;
00034 struct fibheap_el;
00035 typedef int (*voidcmp)(void *, void *);
00036 
00037 /* functions for key heaps */
00038 struct fibheap *fh_makekeyheap(void);
00039 struct fibheap_el *fh_insertkey(struct fibheap *, int, void *);
00040 int fh_minkey(struct fibheap *);
00041 int fh_replacekey(struct fibheap *, struct fibheap_el *, int);
00042 void *fh_replacekeydata(struct fibheap *, struct fibheap_el *, int, void *);
00043 
00044 /* functions for void * heaps */
00045 struct fibheap *fh_makeheap(void);
00046 voidcmp fh_setcmp(struct fibheap *, voidcmp);
00047 void *fh_setneginf(struct fibheap *, void *);
00048 struct fibheap_el *fh_insert(struct fibheap *, void *);
00049 
00050 /* shared functions */
00051 void *fh_extractmin(struct fibheap *);
00052 void *fh_min(struct fibheap *);
00053 void *fh_replacedata(struct fibheap *, struct fibheap_el *, void *);
00054 void *fh_delete(struct fibheap *, struct fibheap_el *);
00055 void fh_deleteheap(struct fibheap *);
00056 struct fibheap *fh_union(struct fibheap *, struct fibheap *);
00057 
00058 #ifdef FH_STATS
00059 int fh_maxn(struct fibheap *);
00060 int fh_ninserts(struct fibheap *);
00061 int fh_nextracts(struct fibheap *);
00062 #endif
00063 
00064 #endif /* _FIB_H_ */