use an intermediate cast to void * in g_array_index() to not trigger cast
[platform/upstream/glib.git] / glib / garray.h
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 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, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */
19
20 /*
21  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
22  * file for a list of people on the GLib Team.  See the ChangeLog
23  * files for a list of changes.  These files are distributed with
24  * GLib at ftp://ftp.gtk.org/pub/gtk/. 
25  */
26
27 #ifndef __G_ARRAY_H__
28 #define __G_ARRAY_H__
29
30 #include <glib/gtypes.h>
31
32 G_BEGIN_DECLS
33
34 typedef struct _GArray          GArray;
35 typedef struct _GByteArray      GByteArray;
36 typedef struct _GPtrArray       GPtrArray;
37
38 struct _GArray
39 {
40   gchar *data;
41   guint len;
42 };
43
44 struct _GByteArray
45 {
46   guint8 *data;
47   guint   len;
48 };
49
50 struct _GPtrArray
51 {
52   gpointer *pdata;
53   guint     len;
54 };
55
56 /* Resizable arrays. remove fills any cleared spot and shortens the
57  * array, while preserving the order. remove_fast will distort the
58  * order by moving the last element to the position of the removed.
59  */
60
61 #define g_array_append_val(a,v)   g_array_append_vals (a, &(v), 1)
62 #define g_array_prepend_val(a,v)  g_array_prepend_vals (a, &(v), 1)
63 #define g_array_insert_val(a,i,v) g_array_insert_vals (a, i, &(v), 1)
64 #define g_array_index(a,t,i)      (((t*) (void *) (a)->data) [(i)])
65
66 GArray* g_array_new               (gboolean          zero_terminated,
67                                    gboolean          clear_,
68                                    guint             element_size);
69 GArray* g_array_sized_new         (gboolean          zero_terminated,
70                                    gboolean          clear_,
71                                    guint             element_size,
72                                    guint             reserved_size);
73 gchar*  g_array_free              (GArray           *array,
74                                    gboolean          free_segment);
75 GArray* g_array_append_vals       (GArray           *array,
76                                    gconstpointer     data,
77                                    guint             len);
78 GArray* g_array_prepend_vals      (GArray           *array,
79                                    gconstpointer     data,
80                                    guint             len);
81 GArray* g_array_insert_vals       (GArray           *array,
82                                    guint             index_,
83                                    gconstpointer     data,
84                                    guint             len);
85 GArray* g_array_set_size          (GArray           *array,
86                                    guint             length);
87 GArray* g_array_remove_index      (GArray           *array,
88                                    guint             index_);
89 GArray* g_array_remove_index_fast (GArray           *array,
90                                    guint             index_);
91 GArray* g_array_remove_range      (GArray           *array,
92                                    guint             index_,
93                                    guint             length);
94 void    g_array_sort              (GArray           *array,
95                                    GCompareFunc      compare_func);
96 void    g_array_sort_with_data    (GArray           *array,
97                                    GCompareDataFunc  compare_func,
98                                    gpointer          user_data);
99
100 /* Resizable pointer array.  This interface is much less complicated
101  * than the above.  Add appends a pointer.  Remove fills any cleared 
102  * spot and shortens the array. remove_fast will again distort order.  
103  */
104 #define    g_ptr_array_index(array,index_) ((array)->pdata)[index_]
105 GPtrArray* g_ptr_array_new                (void);
106 GPtrArray* g_ptr_array_sized_new          (guint             reserved_size);
107 gpointer*  g_ptr_array_free               (GPtrArray        *array,
108                                            gboolean          free_seg);
109 void       g_ptr_array_set_size           (GPtrArray        *array,
110                                            gint              length);
111 gpointer   g_ptr_array_remove_index       (GPtrArray        *array,
112                                            guint             index_);
113 gpointer   g_ptr_array_remove_index_fast  (GPtrArray        *array,
114                                            guint             index_);
115 gboolean   g_ptr_array_remove             (GPtrArray        *array,
116                                            gpointer          data);
117 gboolean   g_ptr_array_remove_fast        (GPtrArray        *array,
118                                            gpointer          data);
119 void       g_ptr_array_remove_range       (GPtrArray        *array,
120                                            guint             index_,
121                                            guint             length);
122 void       g_ptr_array_add                (GPtrArray        *array,
123                                            gpointer          data);
124 void       g_ptr_array_sort               (GPtrArray        *array,
125                                            GCompareFunc      compare_func);
126 void       g_ptr_array_sort_with_data     (GPtrArray        *array,
127                                            GCompareDataFunc  compare_func,
128                                            gpointer          user_data);
129 void       g_ptr_array_foreach            (GPtrArray        *array,
130                                            GFunc             func,
131                                            gpointer          user_data);
132
133
134 /* Byte arrays, an array of guint8.  Implemented as a GArray,
135  * but type-safe.
136  */
137
138 GByteArray* g_byte_array_new               (void);
139 GByteArray* g_byte_array_sized_new         (guint             reserved_size);
140 guint8*     g_byte_array_free              (GByteArray       *array,
141                                             gboolean          free_segment);
142 GByteArray* g_byte_array_append            (GByteArray       *array,
143                                             const guint8     *data,
144                                             guint             len);
145 GByteArray* g_byte_array_prepend           (GByteArray       *array,
146                                             const guint8     *data,
147                                             guint             len);
148 GByteArray* g_byte_array_set_size          (GByteArray       *array,
149                                             guint             length);
150 GByteArray* g_byte_array_remove_index      (GByteArray       *array,
151                                             guint             index_);
152 GByteArray* g_byte_array_remove_index_fast (GByteArray       *array,
153                                             guint             index_);
154 GByteArray* g_byte_array_remove_range      (GByteArray       *array,
155                                             guint             index_,
156                                             guint             length);
157 void        g_byte_array_sort              (GByteArray       *array,
158                                             GCompareFunc      compare_func);
159 void        g_byte_array_sort_with_data    (GByteArray       *array,
160                                             GCompareDataFunc  compare_func,
161                                             gpointer          user_data);
162
163
164 G_END_DECLS
165
166 #endif /* __G_ARRAY_H__ */
167