179 lines
3.3 KiB
C
179 lines
3.3 KiB
C
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/*
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* Copyright (c) 2000-2001
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* The Regents of the University of California. 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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*/
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#ifndef UFIND_H
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#define UFIND_H
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#include <regions.h>
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#include "linkage.h"
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#include "bool.h"
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EXTERN_C_BEGIN
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struct uf_element;
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typedef struct uf_element *uf_element;
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typedef void *uf_info;
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typedef uf_info (*combine_fn_ptr)(uf_info,uf_info);
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struct uf_element *new_uf_element(region r,uf_info i);
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uf_info uf_get_info(struct uf_element *);
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bool uf_unify(combine_fn_ptr,struct uf_element *,struct uf_element *);
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bool uf_union(struct uf_element *,struct uf_element *);
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bool uf_eq(struct uf_element *,struct uf_element *);
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void uf_update(struct uf_element *,uf_info i);
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#define DECLARE_UFIND(name,type) \
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typedef struct name *name; \
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typedef type (* name ## _combine_fn_ptr)(type info1,type info2); \
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name new_ ## name(region r, type info); \
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type name ## _get_info(name); \
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bool name ## _unify(name ## _combine_fn_ptr,name e1, name e2); \
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bool name ## _union(name e1, name e2); \
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bool name ## _eq(name e1, name e2); \
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void name ## _update(name e1, type info);
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#define DEFINE_UFIND(name,type) \
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name new_ ## name(region r, type info) \
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{ \
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return (name)new_uf_element(r,info);\
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}\
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type name ## _get_info(name elem) \
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{ \
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return (type)uf_get_info((struct uf_element *)elem);\
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} \
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bool name ## _unify(name ## _combine_fn_ptr cmb,name e1, name e2) \
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{ \
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return uf_unify((combine_fn_ptr)cmb,(struct uf_element *)e1,(struct uf_element *)e2); \
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} \
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bool name ## _union(name e1, name e2) \
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{ \
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return uf_union((struct uf_element *)e1,(struct uf_element *)e2); \
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}\
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bool name ## _eq(name e1, name e2) \
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{ \
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return uf_eq((struct uf_element *)e1,(struct uf_element *)e2); \
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} \
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void name ##_update(name e1, type info) \
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{ \
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uf_update((struct uf_element *)e1,(uf_info)info); \
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} \
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EXTERN_C_END
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#endif /* UFIND_H */
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