Commit | Line | Data |
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c4b681fd | 1 | /* Decomposed printf argument list. |
61cd9dc9 | 2 | Copyright (C) 1999, 2002-2003, 2005-2007, 2009-2010 Free Software |
4f02b98d | 3 | Foundation, Inc. |
c4b681fd LC |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public License along | |
16 | with this program; if not, write to the Free Software Foundation, | |
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
18 | ||
19 | /* This file can be parametrized with the following macros: | |
20 | ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions. | |
21 | PRINTF_FETCHARGS Name of the function to be defined. | |
22 | STATIC Set to 'static' to declare the function static. */ | |
23 | ||
24 | #ifndef PRINTF_FETCHARGS | |
25 | # include <config.h> | |
26 | #endif | |
27 | ||
28 | /* Specification. */ | |
29 | #ifndef PRINTF_FETCHARGS | |
30 | # include "printf-args.h" | |
31 | #endif | |
32 | ||
33 | #ifdef STATIC | |
34 | STATIC | |
35 | #endif | |
36 | int | |
37 | PRINTF_FETCHARGS (va_list args, arguments *a) | |
38 | { | |
39 | size_t i; | |
40 | argument *ap; | |
41 | ||
42 | for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++) | |
43 | switch (ap->type) | |
44 | { | |
45 | case TYPE_SCHAR: | |
1cd4fffc LC |
46 | ap->a.a_schar = va_arg (args, /*signed char*/ int); |
47 | break; | |
c4b681fd | 48 | case TYPE_UCHAR: |
1cd4fffc LC |
49 | ap->a.a_uchar = va_arg (args, /*unsigned char*/ int); |
50 | break; | |
c4b681fd | 51 | case TYPE_SHORT: |
1cd4fffc LC |
52 | ap->a.a_short = va_arg (args, /*short*/ int); |
53 | break; | |
c4b681fd | 54 | case TYPE_USHORT: |
1cd4fffc LC |
55 | ap->a.a_ushort = va_arg (args, /*unsigned short*/ int); |
56 | break; | |
c4b681fd | 57 | case TYPE_INT: |
1cd4fffc LC |
58 | ap->a.a_int = va_arg (args, int); |
59 | break; | |
c4b681fd | 60 | case TYPE_UINT: |
1cd4fffc LC |
61 | ap->a.a_uint = va_arg (args, unsigned int); |
62 | break; | |
c4b681fd | 63 | case TYPE_LONGINT: |
1cd4fffc LC |
64 | ap->a.a_longint = va_arg (args, long int); |
65 | break; | |
c4b681fd | 66 | case TYPE_ULONGINT: |
1cd4fffc LC |
67 | ap->a.a_ulongint = va_arg (args, unsigned long int); |
68 | break; | |
c4b681fd LC |
69 | #if HAVE_LONG_LONG_INT |
70 | case TYPE_LONGLONGINT: | |
1cd4fffc LC |
71 | ap->a.a_longlongint = va_arg (args, long long int); |
72 | break; | |
c4b681fd | 73 | case TYPE_ULONGLONGINT: |
1cd4fffc LC |
74 | ap->a.a_ulonglongint = va_arg (args, unsigned long long int); |
75 | break; | |
c4b681fd LC |
76 | #endif |
77 | case TYPE_DOUBLE: | |
1cd4fffc LC |
78 | ap->a.a_double = va_arg (args, double); |
79 | break; | |
c4b681fd | 80 | case TYPE_LONGDOUBLE: |
1cd4fffc LC |
81 | ap->a.a_longdouble = va_arg (args, long double); |
82 | break; | |
c4b681fd | 83 | case TYPE_CHAR: |
1cd4fffc LC |
84 | ap->a.a_char = va_arg (args, int); |
85 | break; | |
c4b681fd LC |
86 | #if HAVE_WINT_T |
87 | case TYPE_WIDE_CHAR: | |
1cd4fffc LC |
88 | /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by |
89 | default argument promotions", this is not the case in mingw32, | |
90 | where wint_t is 'unsigned short'. */ | |
91 | ap->a.a_wide_char = | |
92 | (sizeof (wint_t) < sizeof (int) | |
93 | ? (wint_t) va_arg (args, int) | |
94 | : va_arg (args, wint_t)); | |
95 | break; | |
c4b681fd LC |
96 | #endif |
97 | case TYPE_STRING: | |
1cd4fffc LC |
98 | ap->a.a_string = va_arg (args, const char *); |
99 | /* A null pointer is an invalid argument for "%s", but in practice | |
100 | it occurs quite frequently in printf statements that produce | |
101 | debug output. Use a fallback in this case. */ | |
102 | if (ap->a.a_string == NULL) | |
103 | ap->a.a_string = "(NULL)"; | |
104 | break; | |
c4b681fd LC |
105 | #if HAVE_WCHAR_T |
106 | case TYPE_WIDE_STRING: | |
1cd4fffc LC |
107 | ap->a.a_wide_string = va_arg (args, const wchar_t *); |
108 | /* A null pointer is an invalid argument for "%ls", but in practice | |
109 | it occurs quite frequently in printf statements that produce | |
110 | debug output. Use a fallback in this case. */ | |
111 | if (ap->a.a_wide_string == NULL) | |
112 | { | |
113 | static const wchar_t wide_null_string[] = | |
114 | { | |
115 | (wchar_t)'(', | |
116 | (wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L', | |
117 | (wchar_t)')', | |
118 | (wchar_t)0 | |
119 | }; | |
120 | ap->a.a_wide_string = wide_null_string; | |
121 | } | |
122 | break; | |
c4b681fd LC |
123 | #endif |
124 | case TYPE_POINTER: | |
1cd4fffc LC |
125 | ap->a.a_pointer = va_arg (args, void *); |
126 | break; | |
c4b681fd | 127 | case TYPE_COUNT_SCHAR_POINTER: |
1cd4fffc LC |
128 | ap->a.a_count_schar_pointer = va_arg (args, signed char *); |
129 | break; | |
c4b681fd | 130 | case TYPE_COUNT_SHORT_POINTER: |
1cd4fffc LC |
131 | ap->a.a_count_short_pointer = va_arg (args, short *); |
132 | break; | |
c4b681fd | 133 | case TYPE_COUNT_INT_POINTER: |
1cd4fffc LC |
134 | ap->a.a_count_int_pointer = va_arg (args, int *); |
135 | break; | |
c4b681fd | 136 | case TYPE_COUNT_LONGINT_POINTER: |
1cd4fffc LC |
137 | ap->a.a_count_longint_pointer = va_arg (args, long int *); |
138 | break; | |
c4b681fd LC |
139 | #if HAVE_LONG_LONG_INT |
140 | case TYPE_COUNT_LONGLONGINT_POINTER: | |
1cd4fffc LC |
141 | ap->a.a_count_longlongint_pointer = va_arg (args, long long int *); |
142 | break; | |
c4b681fd LC |
143 | #endif |
144 | #if ENABLE_UNISTDIO | |
145 | /* The unistdio extensions. */ | |
146 | case TYPE_U8_STRING: | |
1cd4fffc LC |
147 | ap->a.a_u8_string = va_arg (args, const uint8_t *); |
148 | /* A null pointer is an invalid argument for "%U", but in practice | |
149 | it occurs quite frequently in printf statements that produce | |
150 | debug output. Use a fallback in this case. */ | |
151 | if (ap->a.a_u8_string == NULL) | |
152 | { | |
153 | static const uint8_t u8_null_string[] = | |
154 | { '(', 'N', 'U', 'L', 'L', ')', 0 }; | |
155 | ap->a.a_u8_string = u8_null_string; | |
156 | } | |
157 | break; | |
c4b681fd | 158 | case TYPE_U16_STRING: |
1cd4fffc LC |
159 | ap->a.a_u16_string = va_arg (args, const uint16_t *); |
160 | /* A null pointer is an invalid argument for "%lU", but in practice | |
161 | it occurs quite frequently in printf statements that produce | |
162 | debug output. Use a fallback in this case. */ | |
163 | if (ap->a.a_u16_string == NULL) | |
164 | { | |
165 | static const uint16_t u16_null_string[] = | |
166 | { '(', 'N', 'U', 'L', 'L', ')', 0 }; | |
167 | ap->a.a_u16_string = u16_null_string; | |
168 | } | |
169 | break; | |
c4b681fd | 170 | case TYPE_U32_STRING: |
1cd4fffc LC |
171 | ap->a.a_u32_string = va_arg (args, const uint32_t *); |
172 | /* A null pointer is an invalid argument for "%llU", but in practice | |
173 | it occurs quite frequently in printf statements that produce | |
174 | debug output. Use a fallback in this case. */ | |
175 | if (ap->a.a_u32_string == NULL) | |
176 | { | |
177 | static const uint32_t u32_null_string[] = | |
178 | { '(', 'N', 'U', 'L', 'L', ')', 0 }; | |
179 | ap->a.a_u32_string = u32_null_string; | |
180 | } | |
181 | break; | |
c4b681fd LC |
182 | #endif |
183 | default: | |
1cd4fffc LC |
184 | /* Unknown type. */ |
185 | return -1; | |
c4b681fd LC |
186 | } |
187 | return 0; | |
188 | } |