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/*-
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* Copyright 1997, 1998-2003 John-Mark Gurney.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: fib.h,v 1.1 2005-12-02 10:41:56 martin-s Exp $
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*
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*/
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#ifndef _FIB_H_
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#define _FIB_H_
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struct fibheap;
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struct fibheap_el;
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typedef int (*voidcmp)(void *, void *);
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/* functions for key heaps */
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struct fibheap *fh_makekeyheap(void);
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struct fibheap_el *fh_insertkey(struct fibheap *, int, void *);
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int fh_minkey(struct fibheap *);
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int fh_replacekey(struct fibheap *, struct fibheap_el *, int);
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void *fh_replacekeydata(struct fibheap *, struct fibheap_el *, int, void *);
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/* functions for void * heaps */
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struct fibheap *fh_makeheap(void);
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voidcmp fh_setcmp(struct fibheap *, voidcmp);
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void *fh_setneginf(struct fibheap *, void *);
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struct fibheap_el *fh_insert(struct fibheap *, void *);
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/* shared functions */
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void *fh_extractmin(struct fibheap *);
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void *fh_min(struct fibheap *);
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void *fh_replacedata(struct fibheap *, struct fibheap_el *, void *);
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void *fh_delete(struct fibheap *, struct fibheap_el *);
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void fh_deleteheap(struct fibheap *);
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struct fibheap *fh_union(struct fibheap *, struct fibheap *);
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#ifdef FH_STATS
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int fh_maxn(struct fibheap *);
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int fh_ninserts(struct fibheap *);
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int fh_nextracts(struct fibheap *);
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#endif
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#endif /* _FIB_H_ */
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