src/relation.h

/* Binary relations.
   Copyright (C) 2002, 2004, 2009-2010 Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   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 3 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, see <http://www.gnu.org/licenses/>.  */


#ifndef RELATION_H_
# define RELATION_H_

/* Performing operations on graphs coded as list of adjacency.

   If GRAPH is a relation, then GRAPH[Node] is a list of adjacent
   nodes, ended with END_NODE.  */

#define END_NODE ((relation_node) -1)

typedef size_t relation_node;
typedef relation_node *relation_nodes;
typedef relation_nodes *relation;


/* Report a relation R that has SIZE vertices.  */
void relation_print (relation r, relation_node size, FILE *out);

/* Compute the transitive closure of the FUNCTION on the relation R
   with SIZE vertices.

   If R (NODE-1, NODE-2) then on exit FUNCTION[NODE - 1] was extended
   (unioned) with FUNCTION[NODE - 2].  */
void relation_digraph (relation r, relation_node size, bitsetv *function);

/* Destructively transpose *R_ARG, of size N.  */
void relation_transpose (relation *R_arg, relation_node n);

#endif /* ! RELATION_H_ */
Commit	Line	Data
	1	/* Binary relations.
	2	Copyright (C) 2002, 2004, 2009-2010 Free Software Foundation, Inc.
	3
	4	This file is part of Bison, the GNU Compiler Compiler.
	5
	6	This program is free software: you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation, either version 3 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	18
	19
	20	#ifndef RELATION_H_
	21	# define RELATION_H_
	22
	23	/* Performing operations on graphs coded as list of adjacency.
	24
	25	If GRAPH is a relation, then GRAPH[Node] is a list of adjacent
	26	nodes, ended with END_NODE. */
	27
	28	#define END_NODE ((relation_node) -1)
	29
	30	typedef size_t relation_node;
	31	typedef relation_node *relation_nodes;
	32	typedef relation_nodes *relation;
	33
	34
	35	/* Report a relation R that has SIZE vertices. */
	36	void relation_print (relation r, relation_node size, FILE *out);
	37
	38	/* Compute the transitive closure of the FUNCTION on the relation R
	39	with SIZE vertices.
	40
	41	If R (NODE-1, NODE-2) then on exit FUNCTION[NODE - 1] was extended
	42	(unioned) with FUNCTION[NODE - 2]. */
	43	void relation_digraph (relation r, relation_node size, bitsetv *function);
	44
	45	/* Destructively transpose R_ARG, of size N. /
	46	void relation_transpose (relation *R_arg, relation_node n);
	47
	48	#endif /* ! RELATION_H_ */