iterator.h
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _MAILUTILS_SYS_ITERATOR_H
#define _MAILUTILS_SYS_ITERATOR_H
#include <mailutils/iterator.h>
__MAILUTILS_BEGIN_DECLS
struct _iterator_vtable
{
/* Base */
int (*add_ref) __P ((iterator_t));
int (*release) __P ((iterator_t));
int (*destroy) __P ((iterator_t));
int (*first) __P ((iterator_t));
int (*next) __P ((iterator_t));
int (*current) __P ((iterator_t, void *));
int (*is_done) __P ((iterator_t));
};
struct _iterator
{
struct _iterator_vtable *vtable;
};
/* Use macros for the implentation. */
#define iterator_add_ref(i) ((i)->vtable->add_ref)(i)
#define iterator_release(i) ((i)->vtable->release)(i)
#define iterator_destroy(i) ((i)->vtable->destroy)(i)
#define iterator_firs(i) ((i)->vtable->first)(i)
#define iterator_next(i) ((i)->vtable->next)(i)
#define iterator_current(i, a) ((i)->vtable->current)(i, a)
#define iterator_is_done(i) ((i)->vtable->is_done)(i)
__MAILUTILS_END_DECLS
#endif /* _MAILUTILS_SYS_ITERATOR_H */