1 /* Decomposed printf argument list.
2 Copyright (C) 1999, 2002-2003, 2005-2007, 2009-2019 Free Software
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 2.1, 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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser 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
30 #ifndef PRINTF_FETCHARGS
31 # include "printf-args.h"
38 PRINTF_FETCHARGS (va_list args, arguments *a)
43 for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++)
47 ap->a.a_schar = va_arg (args, /*signed char*/ int);
50 ap->a.a_uchar = va_arg (args, /*unsigned char*/ int);
53 ap->a.a_short = va_arg (args, /*short*/ int);
56 ap->a.a_ushort = va_arg (args, /*unsigned short*/ int);
59 ap->a.a_int = va_arg (args, int);
62 ap->a.a_uint = va_arg (args, unsigned int);
65 ap->a.a_longint = va_arg (args, long int);
68 ap->a.a_ulongint = va_arg (args, unsigned long int);
71 case TYPE_LONGLONGINT:
72 ap->a.a_longlongint = va_arg (args, long long int);
74 case TYPE_ULONGLONGINT:
75 ap->a.a_ulonglongint = va_arg (args, unsigned long long int);
79 ap->a.a_double = va_arg (args, double);
82 ap->a.a_longdouble = va_arg (args, long double);
85 ap->a.a_char = va_arg (args, int);
89 /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by
90 default argument promotions", this is not the case in mingw32,
91 where wint_t is 'unsigned short'. */
93 (sizeof (wint_t) < sizeof (int)
94 ? (wint_t) va_arg (args, int)
95 : va_arg (args, wint_t));
99 ap->a.a_string = va_arg (args, const char *);
100 /* A null pointer is an invalid argument for "%s", but in practice
101 it occurs quite frequently in printf statements that produce
102 debug output. Use a fallback in this case. */
103 if (ap->a.a_string == NULL)
104 ap->a.a_string = "(NULL)";
107 case TYPE_WIDE_STRING:
108 ap->a.a_wide_string = va_arg (args, const wchar_t *);
109 /* A null pointer is an invalid argument for "%ls", but in practice
110 it occurs quite frequently in printf statements that produce
111 debug output. Use a fallback in this case. */
112 if (ap->a.a_wide_string == NULL)
114 static const wchar_t wide_null_string[] =
117 (wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L',
121 ap->a.a_wide_string = wide_null_string;
126 ap->a.a_pointer = va_arg (args, void *);
128 case TYPE_COUNT_SCHAR_POINTER:
129 ap->a.a_count_schar_pointer = va_arg (args, signed char *);
131 case TYPE_COUNT_SHORT_POINTER:
132 ap->a.a_count_short_pointer = va_arg (args, short *);
134 case TYPE_COUNT_INT_POINTER:
135 ap->a.a_count_int_pointer = va_arg (args, int *);
137 case TYPE_COUNT_LONGINT_POINTER:
138 ap->a.a_count_longint_pointer = va_arg (args, long int *);
141 case TYPE_COUNT_LONGLONGINT_POINTER:
142 ap->a.a_count_longlongint_pointer = va_arg (args, long long int *);
146 /* The unistdio extensions. */
148 ap->a.a_u8_string = va_arg (args, const uint8_t *);
149 /* A null pointer is an invalid argument for "%U", but in practice
150 it occurs quite frequently in printf statements that produce
151 debug output. Use a fallback in this case. */
152 if (ap->a.a_u8_string == NULL)
154 static const uint8_t u8_null_string[] =
155 { '(', 'N', 'U', 'L', 'L', ')', 0 };
156 ap->a.a_u8_string = u8_null_string;
159 case TYPE_U16_STRING:
160 ap->a.a_u16_string = va_arg (args, const uint16_t *);
161 /* A null pointer is an invalid argument for "%lU", but in practice
162 it occurs quite frequently in printf statements that produce
163 debug output. Use a fallback in this case. */
164 if (ap->a.a_u16_string == NULL)
166 static const uint16_t u16_null_string[] =
167 { '(', 'N', 'U', 'L', 'L', ')', 0 };
168 ap->a.a_u16_string = u16_null_string;
171 case TYPE_U32_STRING:
172 ap->a.a_u32_string = va_arg (args, const uint32_t *);
173 /* A null pointer is an invalid argument for "%llU", but in practice
174 it occurs quite frequently in printf statements that produce
175 debug output. Use a fallback in this case. */
176 if (ap->a.a_u32_string == NULL)
178 static const uint32_t u32_null_string[] =
179 { '(', 'N', 'U', 'L', 'L', ')', 0 };
180 ap->a.a_u32_string = u32_null_string;