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1 /* GLIB - Library of useful routines for C programming
2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 /*
19  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
20  * file for a list of people on the GLib Team.  See the ChangeLog
21  * files for a list of changes.  These files are distributed with
22  * GLib at ftp://ftp.gtk.org/pub/gtk/.
23  */
24 
25 #ifndef __G_QUARK_H__
26 #define __G_QUARK_H__
27 
28 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
29 #error "Only <glib.h> can be included directly."
30 #endif
31 
32 #include <glib/gtypes.h>
33 
34 G_BEGIN_DECLS
35 
36 typedef guint32 GQuark;
37 
38 /* Quarks (string<->id association)
39  */
40 GLIB_AVAILABLE_IN_ALL
41 GQuark                g_quark_try_string         (const gchar *string);
42 GLIB_AVAILABLE_IN_ALL
43 GQuark                g_quark_from_static_string (const gchar *string);
44 GLIB_AVAILABLE_IN_ALL
45 GQuark                g_quark_from_string        (const gchar *string);
46 GLIB_AVAILABLE_IN_ALL
47 const gchar *         g_quark_to_string          (GQuark       quark) G_GNUC_CONST;
48 
49 #define G_DEFINE_QUARK(QN, q_n)                                         \
50 GQuark                                                                  \
51 q_n##_quark (void)                                                      \
52 {                                                                       \
53   static GQuark q;                                                      \
54                                                                         \
55   if G_UNLIKELY (q == 0)                                                \
56     q = g_quark_from_static_string (#QN);                               \
57                                                                         \
58   return q;                                                             \
59 }
60 
61 GLIB_AVAILABLE_IN_ALL
62 const gchar *         g_intern_string            (const gchar *string);
63 GLIB_AVAILABLE_IN_ALL
64 const gchar *         g_intern_static_string     (const gchar *string);
65 
66 G_END_DECLS
67 
68 #endif /* __G_QUARK_H__ */
69