1 /* Decomposed printf argument list.
2 Copyright (C) 1999, 2002-2003, 2005-2007, 2009-2021 Free Software
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
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 General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, see <https://www.gnu.org/licenses/>. */
18 /* This file can be parametrized with the following macros:
19 ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions.
20 PRINTF_FETCHARGS Name of the function to be defined.
21 STATIC Set to 'static' to declare the function static. */
23 #ifndef PRINTF_FETCHARGS
28 #ifndef PRINTF_FETCHARGS
29 # include "printf-args.h"
36 PRINTF_FETCHARGS (va_list args, arguments *a)
41 for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++)
45 ap->a.a_schar = va_arg (args, /*signed char*/ int);
48 ap->a.a_uchar = va_arg (args, /*unsigned char*/ int);
51 ap->a.a_short = va_arg (args, /*short*/ int);
54 ap->a.a_ushort = va_arg (args, /*unsigned short*/ int);
57 ap->a.a_int = va_arg (args, int);
60 ap->a.a_uint = va_arg (args, unsigned int);
63 ap->a.a_longint = va_arg (args, long int);
66 ap->a.a_ulongint = va_arg (args, unsigned long int);
68 case TYPE_LONGLONGINT:
69 ap->a.a_longlongint = va_arg (args, long long int);
71 case TYPE_ULONGLONGINT:
72 ap->a.a_ulonglongint = va_arg (args, unsigned long long int);
75 ap->a.a_double = va_arg (args, double);
78 ap->a.a_longdouble = va_arg (args, long double);
81 ap->a.a_char = va_arg (args, int);
85 /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by
86 default argument promotions", this is not the case in mingw32,
87 where wint_t is 'unsigned short'. */
89 (sizeof (wint_t) < sizeof (int)
90 ? (wint_t) va_arg (args, int)
91 : va_arg (args, wint_t));
95 ap->a.a_string = va_arg (args, const char *);
96 /* A null pointer is an invalid argument for "%s", but in practice
97 it occurs quite frequently in printf statements that produce
98 debug output. Use a fallback in this case. */
99 if (ap->a.a_string == NULL)
100 ap->a.a_string = "(NULL)";
103 case TYPE_WIDE_STRING:
104 ap->a.a_wide_string = va_arg (args, const wchar_t *);
105 /* A null pointer is an invalid argument for "%ls", but in practice
106 it occurs quite frequently in printf statements that produce
107 debug output. Use a fallback in this case. */
108 if (ap->a.a_wide_string == NULL)
110 static const wchar_t wide_null_string[] =
113 (wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L',
117 ap->a.a_wide_string = wide_null_string;
122 ap->a.a_pointer = va_arg (args, void *);
124 case TYPE_COUNT_SCHAR_POINTER:
125 ap->a.a_count_schar_pointer = va_arg (args, signed char *);
127 case TYPE_COUNT_SHORT_POINTER:
128 ap->a.a_count_short_pointer = va_arg (args, short *);
130 case TYPE_COUNT_INT_POINTER:
131 ap->a.a_count_int_pointer = va_arg (args, int *);
133 case TYPE_COUNT_LONGINT_POINTER:
134 ap->a.a_count_longint_pointer = va_arg (args, long int *);
136 case TYPE_COUNT_LONGLONGINT_POINTER:
137 ap->a.a_count_longlongint_pointer = va_arg (args, long long int *);
140 /* The unistdio extensions. */
142 ap->a.a_u8_string = va_arg (args, const uint8_t *);
143 /* A null pointer is an invalid argument for "%U", but in practice
144 it occurs quite frequently in printf statements that produce
145 debug output. Use a fallback in this case. */
146 if (ap->a.a_u8_string == NULL)
148 static const uint8_t u8_null_string[] =
149 { '(', 'N', 'U', 'L', 'L', ')', 0 };
150 ap->a.a_u8_string = u8_null_string;
153 case TYPE_U16_STRING:
154 ap->a.a_u16_string = va_arg (args, const uint16_t *);
155 /* A null pointer is an invalid argument for "%lU", but in practice
156 it occurs quite frequently in printf statements that produce
157 debug output. Use a fallback in this case. */
158 if (ap->a.a_u16_string == NULL)
160 static const uint16_t u16_null_string[] =
161 { '(', 'N', 'U', 'L', 'L', ')', 0 };
162 ap->a.a_u16_string = u16_null_string;
165 case TYPE_U32_STRING:
166 ap->a.a_u32_string = va_arg (args, const uint32_t *);
167 /* A null pointer is an invalid argument for "%llU", but in practice
168 it occurs quite frequently in printf statements that produce
169 debug output. Use a fallback in this case. */
170 if (ap->a.a_u32_string == NULL)
172 static const uint32_t u32_null_string[] =
173 { '(', 'N', 'U', 'L', 'L', ')', 0 };
174 ap->a.a_u32_string = u32_null_string;