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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* GData Client
* Copyright (C) Philip Withnall 2010 <philip@tecnocode.co.uk>
*
* GData Client is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* GData Client 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GData Client. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GDATA_COMPARABLE_H
#define GDATA_COMPARABLE_H
#include <glib.h>
#include <glib-object.h>
G_BEGIN_DECLS
#define GDATA_TYPE_COMPARABLE (gdata_comparable_get_type ())
#define GDATA_COMPARABLE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GDATA_TYPE_COMPARABLE, GDataComparable))
#define GDATA_COMPARABLE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GDATA_TYPE_COMPARABLE, GDataComparableIface))
#define GDATA_IS_COMPARABLE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDATA_TYPE_COMPARABLE))
#define GDATA_COMPARABLE_GET_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), GDATA_TYPE_COMPARABLE, GDataComparableIface))
/**
* GDataComparable:
*
* All the fields in the #GDataComparable structure are private and should never be accessed directly.
*
* Since: 0.7.0
*/
typedef struct _GDataComparable GDataComparable; /* dummy typedef */
/**
* GDataComparableIface:
* @parent: the parent type
* @compare_with: compares the object with an @other object of the same type, returning <code class="literal">-1</code> if the object is "less than"
* the other object, <code class="literal">0</code> if they're equal, or <code class="literal">1</code> if the object is "greater than" the other. The
* function can assume that neither @self or @other will be %NULL, and that both have correct types. The function must be pure.
*
* The class structure for the #GDataComparable interface.
*
* Since: 0.7.0
*/
typedef struct {
GTypeInterface parent;
gint (*compare_with) (GDataComparable *self, GDataComparable *other);
} GDataComparableIface;
GType gdata_comparable_get_type (void) G_GNUC_CONST;
gint gdata_comparable_compare (GDataComparable *self, GDataComparable *other) G_GNUC_PURE;
G_END_DECLS
#endif /* !GDATA_COMPARABLE_H */
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