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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
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/*
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* GData Client
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* Copyright (C) Philip Withnall 2010 <philip@tecnocode.co.uk>
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*
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* GData Client is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* GData Client is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with GData Client. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GDATA_COMPARABLE_H
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#define GDATA_COMPARABLE_H
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#include <glib.h>
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define GDATA_TYPE_COMPARABLE (gdata_comparable_get_type ())
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#define GDATA_COMPARABLE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GDATA_TYPE_COMPARABLE, GDataComparable))
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#define GDATA_COMPARABLE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GDATA_TYPE_COMPARABLE, GDataComparableIface))
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#define GDATA_IS_COMPARABLE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDATA_TYPE_COMPARABLE))
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#define GDATA_COMPARABLE_GET_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), GDATA_TYPE_COMPARABLE, GDataComparableIface))
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/**
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* GDataComparable:
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*
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* All the fields in the #GDataComparable structure are private and should never be accessed directly.
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*
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* Since: 0.7.0
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*/
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typedef struct _GDataComparable GDataComparable; /* dummy typedef */
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/**
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* GDataComparableIface:
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* @parent: the parent type
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* @compare_with: compares the object with an @other object of the same type, returning -1 if the object is "less than"
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* the other object, 0 if they're equal, or 1 if the object is "greater than" the other. The
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* function can assume that neither @self or @other will be %NULL, and that both have correct types. The function must be pure.
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*
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* The class structure for the #GDataComparable interface.
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*
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* Since: 0.7.0
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*/
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typedef struct {
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GTypeInterface parent;
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gint (*compare_with) (GDataComparable *self, GDataComparable *other);
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} GDataComparableIface;
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GType gdata_comparable_get_type (void) G_GNUC_CONST;
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gint gdata_comparable_compare (GDataComparable *self, GDataComparable *other) G_GNUC_PURE;
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G_END_DECLS
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#endif /* !GDATA_COMPARABLE_H */
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