1 /*
2 *
3 * This is the header file to include to fix any broken definitions or funcs
4 *
5 * $Id$
6 *
7 * 2004 Kees Cook
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 * http://www.gnu.org/copyleft/gpl.html
23 *
24 */
26 #ifdef HAVE_CONFIG_H
27 # include "config.h"
28 #endif
30 //#if defined(g_ascii_strtod)
31 #if 0
32 /*
33 * until 2004-04-22, g_ascii_strtod could not handle having a locale-based
34 * decimal separator immediately following the number ("5,4" would
35 * parse to "5,4" instead of "5.0" in fr_FR)
36 *
37 * This is the corrected function, lifted from 1.107 gstrfuncs.c in glib
38 */
39 extern "C" {
40 #include <glib.h>
41 #include <locale.h>
42 #include <string.h>
43 #include <errno.h>
44 #include <stdlib.h>
46 gdouble
47 fixed_g_ascii_strtod (const gchar *nptr,
48 gchar **endptr)
49 {
50 gchar *fail_pos;
51 gdouble val;
52 struct lconv *locale_data;
53 const char *decimal_point;
54 int decimal_point_len;
55 const char *p, *decimal_point_pos;
56 const char *end = NULL; /* Silence gcc */
58 g_return_val_if_fail (nptr != NULL, 0);
60 fail_pos = NULL;
62 locale_data = localeconv ();
63 decimal_point = locale_data->decimal_point;
64 decimal_point_len = strlen (decimal_point);
66 g_assert (decimal_point_len != 0);
68 decimal_point_pos = NULL;
69 if (decimal_point[0] != '.' ||
70 decimal_point[1] != 0)
71 {
72 p = nptr;
73 /* Skip leading space */
74 while (g_ascii_isspace (*p))
75 p++;
77 /* Skip leading optional sign */
78 if (*p == '+' || *p == '-')
79 p++;
81 if (p[0] == '0' &&
82 (p[1] == 'x' || p[1] == 'X'))
83 {
84 p += 2;
85 /* HEX - find the (optional) decimal point */
87 while (g_ascii_isxdigit (*p))
88 p++;
90 if (*p == '.')
91 {
92 decimal_point_pos = p++;
94 while (g_ascii_isxdigit (*p))
95 p++;
97 if (*p == 'p' || *p == 'P')
98 p++;
99 if (*p == '+' || *p == '-')
100 p++;
101 while (g_ascii_isdigit (*p))
102 p++;
103 }
104 }
105 else
106 {
107 while (g_ascii_isdigit (*p))
108 p++;
110 if (*p == '.')
111 {
112 decimal_point_pos = p++;
114 while (g_ascii_isdigit (*p))
115 p++;
117 if (*p == 'e' || *p == 'E')
118 p++;
119 if (*p == '+' || *p == '-')
120 p++;
121 while (g_ascii_isdigit (*p))
122 p++;
123 }
124 }
125 /* For the other cases, we need not convert the decimal point */
126 end = p;
127 }
129 /* Set errno to zero, so that we can distinguish zero results
130 and underflows */
131 errno = 0;
133 if (decimal_point_pos)
134 {
135 char *copy, *c;
137 /* We need to convert the '.' to the locale specific decimal point */
138 copy = (char*)g_malloc (end - nptr + 1 + decimal_point_len);
140 c = copy;
141 memcpy (c, nptr, decimal_point_pos - nptr);
142 c += decimal_point_pos - nptr;
143 memcpy (c, decimal_point, decimal_point_len);
144 c += decimal_point_len;
145 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
146 c += end - (decimal_point_pos + 1);
147 *c = 0;
149 val = strtod (copy, &fail_pos);
151 if (fail_pos)
152 {
153 if (fail_pos - copy > decimal_point_pos - nptr)
154 fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
155 else
156 fail_pos = (char *)nptr + (fail_pos - copy);
157 }
159 g_free (copy);
161 }
162 else if (decimal_point[0] != '.' ||
163 decimal_point[1] != 0)
164 {
165 char *copy;
167 copy = (char*)g_malloc (end - (char *)nptr + 1);
168 memcpy (copy, nptr, end - nptr);
169 *(copy + (end - (char *)nptr)) = 0;
171 val = strtod (copy, &fail_pos);
173 if (fail_pos)
174 {
175 fail_pos = (char *)nptr + (fail_pos - copy);
176 }
178 g_free (copy);
179 }
180 else
181 {
182 val = strtod (nptr, &fail_pos);
183 }
185 if (endptr)
186 *endptr = fail_pos;
188 return val;
189 }
190 }
192 #endif /* BROKEN_G_ASCII_STRTOD */