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Dist ref-add.sin, ref-del.sin. (#63092, Dan Winship)
[glib.git] / gobject / gvaluetransform.c
blob2c28406dd7ddd437ee213ab74ee040d372bd3403
1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 2001 Red Hat, Inc.
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
15 * Public 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 #include <string.h>
20
21 #include "gvalue.h"
22 #include "genums.h"
23
24
25 /* same type transforms
26 */
27 static void
28 value_transform_memcpy_data0 (const GValue *src_value,
29 GValue *dest_value)
30 {
31 memcpy (&dest_value->data[0], &src_value->data[0], sizeof (src_value->data[0]));
32 }
33 #define value_transform_int_int value_transform_memcpy_data0
34 #define value_transform_uint_uint value_transform_memcpy_data0
35 #define value_transform_long_long value_transform_memcpy_data0
36 #define value_transform_ulong_ulong value_transform_memcpy_data0
37 #define value_transform_float_float value_transform_memcpy_data0
38 #define value_transform_double_double value_transform_memcpy_data0
39
40
41 /* numeric casts
42 */
43 #define DEFINE_CAST(func_name, from_member, ctype, to_member) \
44 static void \
45 value_transform_##func_name (const GValue *src_value, \
46 GValue *dest_value) \
47 { \
48 ctype c_value = src_value->data[0].from_member; \
49 dest_value->data[0].to_member = c_value; \
50 }
51 DEFINE_CAST (int_s8, v_int, gint8, v_int);
52 DEFINE_CAST (int_u8, v_int, guint8, v_uint);
53 DEFINE_CAST (int_uint, v_int, guint, v_uint);
54 DEFINE_CAST (int_long, v_int, glong, v_long);
55 DEFINE_CAST (int_ulong, v_int, gulong, v_ulong);
56 DEFINE_CAST (int_float, v_int, gfloat, v_float);
57 DEFINE_CAST (int_double, v_int, gdouble, v_double);
58 DEFINE_CAST (uint_s8, v_uint, gint8, v_int);
59 DEFINE_CAST (uint_u8, v_uint, guint8, v_uint);
60 DEFINE_CAST (uint_int, v_uint, gint, v_int);
61 DEFINE_CAST (uint_long, v_uint, glong, v_long);
62 DEFINE_CAST (uint_ulong, v_uint, gulong, v_ulong);
63 DEFINE_CAST (uint_float, v_uint, gfloat, v_float);
64 DEFINE_CAST (uint_double, v_uint, gdouble, v_double);
65 DEFINE_CAST (long_s8, v_long, gint8, v_int);
66 DEFINE_CAST (long_u8, v_long, guint8, v_uint);
67 DEFINE_CAST (long_int, v_long, gint, v_int);
68 DEFINE_CAST (long_uint, v_long, guint, v_uint);
69 DEFINE_CAST (long_ulong, v_long, gulong, v_ulong);
70 DEFINE_CAST (long_float, v_long, gfloat, v_float);
71 DEFINE_CAST (long_double, v_long, gdouble, v_double);
72 DEFINE_CAST (ulong_s8, v_ulong, gint8, v_int);
73 DEFINE_CAST (ulong_u8, v_ulong, guint8, v_uint);
74 DEFINE_CAST (ulong_int, v_ulong, gint, v_int);
75 DEFINE_CAST (ulong_uint, v_ulong, guint, v_uint);
76 DEFINE_CAST (ulong_long, v_ulong, glong, v_long);
77 DEFINE_CAST (ulong_float, v_ulong, gfloat, v_float);
78 DEFINE_CAST (ulong_double, v_ulong, gdouble, v_double);
79 DEFINE_CAST (float_s8, v_float, gint8, v_int);
80 DEFINE_CAST (float_u8, v_float, guint8, v_uint);
81 DEFINE_CAST (float_int, v_float, gint, v_int);
82 DEFINE_CAST (float_uint, v_float, guint, v_uint);
83 DEFINE_CAST (float_long, v_float, glong, v_long);
84 DEFINE_CAST (float_ulong, v_float, gulong, v_ulong);
85 DEFINE_CAST (float_double, v_float, gdouble, v_double);
86 DEFINE_CAST (double_s8, v_double, gint8, v_int);
87 DEFINE_CAST (double_u8, v_double, guint8, v_uint);
88 DEFINE_CAST (double_int, v_double, gint, v_int);
89 DEFINE_CAST (double_uint, v_double, guint, v_uint);
90 DEFINE_CAST (double_long, v_double, glong, v_long);
91 DEFINE_CAST (double_ulong, v_double, gulong, v_ulong);
92 DEFINE_CAST (double_float, v_double, gfloat, v_float);
93
94
95 /* boolean assignments
96 */
97 #define DEFINE_BOOL_CHECK(func_name, from_member) \
98 static void \
99 value_transform_##func_name (const GValue *src_value, \
100 GValue *dest_value) \
101 { \
102 dest_value->data[0].v_int = src_value->data[0].from_member != 0; \
103 }
104 DEFINE_BOOL_CHECK (int_bool, v_int);
105 DEFINE_BOOL_CHECK (uint_bool, v_uint);
106 DEFINE_BOOL_CHECK (long_bool, v_long);
107 DEFINE_BOOL_CHECK (ulong_bool, v_uint);
108
109
110 /* string printouts
111 */
112 #define DEFINE_SPRINTF(func_name, from_member, format) \
113 static void \
114 value_transform_##func_name (const GValue *src_value, \
115 GValue *dest_value) \
116 { \
117 dest_value->data[0].v_pointer = \
118 g_strdup_printf ((format), src_value->data[0].from_member); \
119 }
120 DEFINE_SPRINTF (int_string, v_int, "%d");
121 DEFINE_SPRINTF (uint_string, v_uint, "%u");
122 DEFINE_SPRINTF (long_string, v_long, "%ld");
123 DEFINE_SPRINTF (ulong_string, v_ulong, "%lu");
124 DEFINE_SPRINTF (float_string, v_float, "%f");
125 DEFINE_SPRINTF (double_string, v_double, "%f");
126
127
128 /* special cases
129 */
130 static void
131 value_transform_bool_string (const GValue *src_value,
132 GValue *dest_value)
133 {
134 dest_value->data[0].v_pointer = g_strdup_printf ("%s",
135 src_value->data[0].v_int ?
136 "TRUE" : "FALSE");
137 }
138 static void
139 value_transform_string_string (const GValue *src_value,
140 GValue *dest_value)
141 {
142 dest_value->data[0].v_pointer = g_strdup (src_value->data[0].v_pointer);
143 }
144 static void
145 value_transform_enum_string (const GValue *src_value,
146 GValue *dest_value)
147 {
148 GEnumClass *class = g_type_class_ref (G_VALUE_TYPE (src_value));
149 GEnumValue *enum_value = g_enum_get_value (class, src_value->data[0].v_int);
150
151 if (enum_value)
152 dest_value->data[0].v_pointer = g_strdup (enum_value->value_name);
153 else
154 dest_value->data[0].v_pointer = g_strdup_printf ("%d", src_value->data[0].v_int);
155
156 g_type_class_unref (class);
157 }
158 static void
159 value_transform_flags_string (const GValue *src_value,
160 GValue *dest_value)
161 {
162 GFlagsClass *class = g_type_class_ref (G_VALUE_TYPE (src_value));
163 GFlagsValue *flags_value = g_flags_get_first_value (class, src_value->data[0].v_uint);
164
165 if (flags_value)
166 {
167 GString *gstring = g_string_new ("");
168 guint v_flags = src_value->data[0].v_uint;
169
170 do
171 {
172 v_flags &= ~flags_value->value;
173
174 if (gstring->str[0])
175 g_string_append (gstring, " | ");
176 g_string_append (gstring, flags_value->value_name);
177 flags_value = g_flags_get_first_value (class, v_flags);
178 }
179 while (flags_value);
180
181 if (v_flags)
182 dest_value->data[0].v_pointer = g_strdup_printf ("%s | %u",
183 gstring->str,
184 v_flags);
185 else
186 dest_value->data[0].v_pointer = g_strdup (gstring->str);
187 g_string_free (gstring, TRUE);
188 }
189 else
190 dest_value->data[0].v_pointer = g_strdup_printf ("%u", src_value->data[0].v_uint);
191
192 g_type_class_unref (class);
193 }
194
195
196 /* registration
197 */
198 void
199 g_value_transforms_init (void) /* sync with gtype.c */
200 {
201 /* some transformations are a bit questionable,
202 * we currently skip those
203 */
204 #define SKIP____register_transform_func(type1,type2,transform_func) /* skip questionable transforms */
205
206 /* numeric types (plus to string) */
207 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_CHAR, value_transform_int_int);
208 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_UCHAR, value_transform_int_u8);
209 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_BOOLEAN, value_transform_int_bool);
210 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_INT, value_transform_int_int);
211 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_UINT, value_transform_int_uint);
212 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_LONG, value_transform_int_long);
213 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_ULONG, value_transform_int_ulong);
214 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_ENUM, value_transform_int_int);
215 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_FLAGS, value_transform_int_uint);
216 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_FLOAT, value_transform_int_float);
217 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_DOUBLE, value_transform_int_double);
218 g_value_register_transform_func (G_TYPE_CHAR, G_TYPE_STRING, value_transform_int_string);
219 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_CHAR, value_transform_uint_s8);
220 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_UCHAR, value_transform_uint_uint);
221 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_BOOLEAN, value_transform_uint_bool);
222 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_INT, value_transform_uint_int);
223 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_UINT, value_transform_uint_uint);
224 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_LONG, value_transform_uint_long);
225 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_ULONG, value_transform_uint_ulong);
226 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_ENUM, value_transform_uint_int);
227 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_FLAGS, value_transform_uint_uint);
228 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_FLOAT, value_transform_uint_float);
229 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_DOUBLE, value_transform_uint_double);
230 g_value_register_transform_func (G_TYPE_UCHAR, G_TYPE_STRING, value_transform_uint_string);
231 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_CHAR, value_transform_int_s8);
232 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_UCHAR, value_transform_int_u8);
233 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_BOOLEAN, value_transform_int_int);
234 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_INT, value_transform_int_int);
235 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_UINT, value_transform_int_uint);
236 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_LONG, value_transform_int_long);
237 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_ULONG, value_transform_int_ulong);
238 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_ENUM, value_transform_int_int);
239 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_FLAGS, value_transform_int_uint);
240 SKIP____register_transform_func (G_TYPE_BOOLEAN, G_TYPE_FLOAT, value_transform_int_float);
241 SKIP____register_transform_func (G_TYPE_BOOLEAN, G_TYPE_DOUBLE, value_transform_int_double);
242 g_value_register_transform_func (G_TYPE_BOOLEAN, G_TYPE_STRING, value_transform_bool_string);
243 g_value_register_transform_func (G_TYPE_INT, G_TYPE_CHAR, value_transform_int_s8);
244 g_value_register_transform_func (G_TYPE_INT, G_TYPE_UCHAR, value_transform_int_u8);
245 g_value_register_transform_func (G_TYPE_INT, G_TYPE_BOOLEAN, value_transform_int_bool);
246 g_value_register_transform_func (G_TYPE_INT, G_TYPE_INT, value_transform_int_int);
247 g_value_register_transform_func (G_TYPE_INT, G_TYPE_UINT, value_transform_int_uint);
248 g_value_register_transform_func (G_TYPE_INT, G_TYPE_LONG, value_transform_int_long);
249 g_value_register_transform_func (G_TYPE_INT, G_TYPE_ULONG, value_transform_int_ulong);
250 g_value_register_transform_func (G_TYPE_INT, G_TYPE_ENUM, value_transform_int_int);
251 g_value_register_transform_func (G_TYPE_INT, G_TYPE_FLAGS, value_transform_int_uint);
252 g_value_register_transform_func (G_TYPE_INT, G_TYPE_FLOAT, value_transform_int_float);
253 g_value_register_transform_func (G_TYPE_INT, G_TYPE_DOUBLE, value_transform_int_double);
254 g_value_register_transform_func (G_TYPE_INT, G_TYPE_STRING, value_transform_int_string);
255 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_CHAR, value_transform_uint_s8);
256 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_UCHAR, value_transform_uint_u8);
257 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_BOOLEAN, value_transform_uint_bool);
258 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_INT, value_transform_uint_int);
259 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_UINT, value_transform_uint_uint);
260 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_LONG, value_transform_uint_long);
261 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_ULONG, value_transform_uint_ulong);
262 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_ENUM, value_transform_uint_int);
263 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_FLAGS, value_transform_uint_uint);
264 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_FLOAT, value_transform_uint_float);
265 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_DOUBLE, value_transform_uint_double);
266 g_value_register_transform_func (G_TYPE_UINT, G_TYPE_STRING, value_transform_uint_string);
267 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_CHAR, value_transform_long_s8);
268 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_UCHAR, value_transform_long_u8);
269 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_BOOLEAN, value_transform_long_bool);
270 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_INT, value_transform_long_int);
271 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_UINT, value_transform_long_uint);
272 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_LONG, value_transform_long_long);
273 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_ULONG, value_transform_long_ulong);
274 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_ENUM, value_transform_long_int);
275 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_FLAGS, value_transform_long_uint);
276 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_FLOAT, value_transform_long_float);
277 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_DOUBLE, value_transform_long_double);
278 g_value_register_transform_func (G_TYPE_LONG, G_TYPE_STRING, value_transform_long_string);
279 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_CHAR, value_transform_ulong_s8);
280 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_UCHAR, value_transform_ulong_u8);
281 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_BOOLEAN, value_transform_ulong_bool);
282 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_INT, value_transform_ulong_int);
283 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_UINT, value_transform_ulong_uint);
284 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_LONG, value_transform_ulong_long);
285 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_ULONG, value_transform_ulong_ulong);
286 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_ENUM, value_transform_ulong_int);
287 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_FLAGS, value_transform_ulong_uint);
288 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_FLOAT, value_transform_ulong_float);
289 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_DOUBLE, value_transform_ulong_double);
290 g_value_register_transform_func (G_TYPE_ULONG, G_TYPE_STRING, value_transform_ulong_string);
291 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_CHAR, value_transform_int_s8);
292 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_UCHAR, value_transform_int_u8);
293 SKIP____register_transform_func (G_TYPE_ENUM, G_TYPE_BOOLEAN, value_transform_int_bool);
294 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_INT, value_transform_int_int);
295 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_UINT, value_transform_int_uint);
296 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_LONG, value_transform_int_long);
297 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_ULONG, value_transform_int_ulong);
298 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_ENUM, value_transform_int_int);
299 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_FLAGS, value_transform_int_uint);
300 SKIP____register_transform_func (G_TYPE_ENUM, G_TYPE_FLOAT, value_transform_int_float);
301 SKIP____register_transform_func (G_TYPE_ENUM, G_TYPE_DOUBLE, value_transform_int_double);
302 g_value_register_transform_func (G_TYPE_ENUM, G_TYPE_STRING, value_transform_enum_string);
303 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_CHAR, value_transform_uint_s8);
304 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_UCHAR, value_transform_uint_u8);
305 SKIP____register_transform_func (G_TYPE_FLAGS, G_TYPE_BOOLEAN, value_transform_uint_bool);
306 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_INT, value_transform_uint_int);
307 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_UINT, value_transform_uint_uint);
308 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_LONG, value_transform_uint_long);
309 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_ULONG, value_transform_uint_ulong);
310 SKIP____register_transform_func (G_TYPE_FLAGS, G_TYPE_ENUM, value_transform_uint_int);
311 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_FLAGS, value_transform_uint_uint);
312 SKIP____register_transform_func (G_TYPE_FLAGS, G_TYPE_FLOAT, value_transform_uint_float);
313 SKIP____register_transform_func (G_TYPE_FLAGS, G_TYPE_DOUBLE, value_transform_uint_double);
314 g_value_register_transform_func (G_TYPE_FLAGS, G_TYPE_STRING, value_transform_flags_string);
315 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_CHAR, value_transform_float_s8);
316 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_UCHAR, value_transform_float_u8);
317 SKIP____register_transform_func (G_TYPE_FLOAT, G_TYPE_BOOLEAN, value_transform_float_bool);
318 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_INT, value_transform_float_int);
319 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_UINT, value_transform_float_uint);
320 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_LONG, value_transform_float_long);
321 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_ULONG, value_transform_float_ulong);
322 SKIP____register_transform_func (G_TYPE_FLOAT, G_TYPE_ENUM, value_transform_float_int);
323 SKIP____register_transform_func (G_TYPE_FLOAT, G_TYPE_FLAGS, value_transform_float_uint);
324 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_FLOAT, value_transform_float_float);
325 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_DOUBLE, value_transform_float_double);
326 g_value_register_transform_func (G_TYPE_FLOAT, G_TYPE_STRING, value_transform_float_string);
327 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_CHAR, value_transform_double_s8);
328 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_UCHAR, value_transform_double_u8);
329 SKIP____register_transform_func (G_TYPE_DOUBLE, G_TYPE_BOOLEAN, value_transform_double_bool);
330 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_INT, value_transform_double_int);
331 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_UINT, value_transform_double_uint);
332 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_LONG, value_transform_double_long);
333 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_ULONG, value_transform_double_ulong);
334 SKIP____register_transform_func (G_TYPE_DOUBLE, G_TYPE_ENUM, value_transform_double_int);
335 SKIP____register_transform_func (G_TYPE_DOUBLE, G_TYPE_FLAGS, value_transform_double_uint);
336 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_FLOAT, value_transform_double_float);
337 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_DOUBLE, value_transform_double_double);
338 g_value_register_transform_func (G_TYPE_DOUBLE, G_TYPE_STRING, value_transform_double_string);
339 /* string types */
340 g_value_register_transform_func (G_TYPE_STRING, G_TYPE_STRING, value_transform_string_string);
341 }
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