/*
 * Copyright (c) 2002, The Tendra Project <http://www.ten15.org/>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 *    		 Crown Copyright (c) 1997
 *    
 *    This TenDRA(r) Computer Program is subject to Copyright
 *    owned by the United Kingdom Secretary of State for Defence
 *    acting through the Defence Evaluation and Research Agency
 *    (DERA).  It is made available to Recipients with a
 *    royalty-free licence for its use, reproduction, transfer
 *    to other parties and amendment for any purpose not excluding
 *    product development provided that any such use et cetera
 *    shall be deemed to be acceptance of the following conditions:-
 *    
 *        (1) Its Recipients shall ensure that this Notice is
 *        reproduced upon any copies or amended versions of it;
 *    
 *        (2) Any amended version of it shall be clearly marked to
 *        show both the nature of and the organisation responsible
 *        for the relevant amendment or amendments;
 *    
 *        (3) Its onward transfer from a recipient to another
 *        party shall be deemed to be that party's acceptance of
 *        these conditions;
 *    
 *        (4) DERA gives no warranty or assurance as to its
 *        quality or suitability for any purpose and DERA accepts
 *        no liability whatsoever in relation to any use to which
 *        it may be put.
 *
 * $TenDRA: tendra/src/producers/common/construct/derive.h,v 1.5 2003/08/24 22:52:57 nonce Exp $
 */


#ifndef DERIVE_INCLUDED
#define DERIVE_INCLUDED


/*
 *    DERIVED CLASS TYPE DECLARATIONS
 *
 *    The routines in this module are concerned with the construction of
 *    derived and base classes.
 */

extern void add_base_class(IDENTIFIER, DECL_SPEC, int);
extern void end_base_class(CLASS_TYPE, int);
extern GRAPH expand_graph(GRAPH, int);
extern GRAPH uniq_base_class(CLASS_TYPE, ERROR *);
extern GRAPH find_base_class(CLASS_TYPE, CLASS_TYPE, int);
extern CLASS_TYPE compare_base_class(CLASS_TYPE, CLASS_TYPE, int);
extern GRAPH direct_base_class(CLASS_TYPE, CLASS_TYPE, ERROR *);
extern GRAPH find_ambig_base(GRAPH);
extern ERROR check_ambig_base(GRAPH);
extern ERROR check_virt_base(GRAPH);
extern GRAPH find_subgraph(GRAPH, GRAPH, GRAPH);
extern int is_subgraph(GRAPH, GRAPH);
extern int eq_graph(GRAPH, GRAPH);
extern GRAPH min_base_class(GRAPH);

extern IDENTIFIER search_field(NAMESPACE, HASHID, int, int);
extern IDENTIFIER search_base_field(NAMESPACE, HASHID, int, int);
extern IDENTIFIER search_subfield(NAMESPACE, GRAPH, IDENTIFIER);
extern GRAPH is_subfield(NAMESPACE, IDENTIFIER);
extern void inherit_class(void);


#endif