summaryrefslogtreecommitdiff
path: root/lib/printf-args.h
blob: 24a86748b15906c25aa61da02335c0d0e4136e7b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
/* Decomposed printf argument list.
   Copyright (C) 1999, 2002-2003, 2006-2007, 2011-2024 Free Software
   Foundation, Inc.

   This file is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of the
   License, or (at your option) any later version.

   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#ifndef _PRINTF_ARGS_H
#define _PRINTF_ARGS_H

/* This file can be parametrized with the following macros:
     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.
     PRINTF_FETCHARGS   Name of the function to be declared.
     STATIC             Set to 'static' to declare the function static.  */

/* Default parameters.  */
#ifndef PRINTF_FETCHARGS
# define PRINTF_FETCHARGS printf_fetchargs
#endif

/* Get size_t, wchar_t.  */
#include <stddef.h>

/* Get wint_t.  */
#if HAVE_WINT_T
# include <wchar.h>
#endif

/* Get intN_t, uintN_t, intN_fast_t, uintN_fast_t.  */
#include <stdint.h>

/* Get va_list.  */
#include <stdarg.h>


/* Argument types */
typedef enum
{
  TYPE_NONE,
  TYPE_SCHAR,
  TYPE_UCHAR,
  TYPE_SHORT,
  TYPE_USHORT,
  TYPE_INT,
  TYPE_UINT,
  TYPE_LONGINT,
  TYPE_ULONGINT,
  TYPE_LONGLONGINT,
  TYPE_ULONGLONGINT,
  /* According to ISO C 23 § 7.23.6.1, "all exact-width integer types",
     "all minimum-width integer types", and "all fastest minimum-width integer
     types" defined in <stdint.h> should be supported.  But for portability
     between platforms, we support only those with N = 8, 16, 32, 64.  */
  TYPE_INT8_T,
  TYPE_UINT8_T,
  TYPE_INT16_T,
  TYPE_UINT16_T,
  TYPE_INT32_T,
  TYPE_UINT32_T,
  TYPE_INT64_T,
  TYPE_UINT64_T,
  TYPE_INT_FAST8_T,
  TYPE_UINT_FAST8_T,
  TYPE_INT_FAST16_T,
  TYPE_UINT_FAST16_T,
  TYPE_INT_FAST32_T,
  TYPE_UINT_FAST32_T,
  TYPE_INT_FAST64_T,
  TYPE_UINT_FAST64_T,
  TYPE_DOUBLE,
  TYPE_LONGDOUBLE,
  TYPE_CHAR,
#if HAVE_WINT_T
  TYPE_WIDE_CHAR,
#endif
  TYPE_STRING,
  TYPE_WIDE_STRING,
  TYPE_POINTER,
  TYPE_COUNT_SCHAR_POINTER,
  TYPE_COUNT_SHORT_POINTER,
  TYPE_COUNT_INT_POINTER,
  TYPE_COUNT_LONGINT_POINTER,
  TYPE_COUNT_LONGLONGINT_POINTER,
  TYPE_COUNT_INT8_T_POINTER,
  TYPE_COUNT_INT16_T_POINTER,
  TYPE_COUNT_INT32_T_POINTER,
  TYPE_COUNT_INT64_T_POINTER,
  TYPE_COUNT_INT_FAST8_T_POINTER,
  TYPE_COUNT_INT_FAST16_T_POINTER,
  TYPE_COUNT_INT_FAST32_T_POINTER,
  TYPE_COUNT_INT_FAST64_T_POINTER
#if ENABLE_UNISTDIO
  /* The unistdio extensions.  */
, TYPE_U8_STRING
, TYPE_U16_STRING
, TYPE_U32_STRING
#endif
} arg_type;

/* Polymorphic argument */
typedef struct
{
  arg_type type;
  union
  {
    signed char                 a_schar;
    unsigned char               a_uchar;
    short                       a_short;
    unsigned short              a_ushort;
    int                         a_int;
    unsigned int                a_uint;
    long int                    a_longint;
    unsigned long int           a_ulongint;
    long long int               a_longlongint;
    unsigned long long int      a_ulonglongint;
    int8_t                      a_int8_t;
    uint8_t                     a_uint8_t;
    int16_t                     a_int16_t;
    uint16_t                    a_uint16_t;
    int32_t                     a_int32_t;
    uint32_t                    a_uint32_t;
    int64_t                     a_int64_t;
    uint64_t                    a_uint64_t;
    int_fast8_t                 a_int_fast8_t;
    uint_fast8_t                a_uint_fast8_t;
    int_fast16_t                a_int_fast16_t;
    uint_fast16_t               a_uint_fast16_t;
    int_fast32_t                a_int_fast32_t;
    uint_fast32_t               a_uint_fast32_t;
    int_fast64_t                a_int_fast64_t;
    uint_fast64_t               a_uint_fast64_t;
    float                       a_float;                     /* unused */
    double                      a_double;
    long double                 a_longdouble;
    int                         a_char;
#if HAVE_WINT_T
    wint_t                      a_wide_char;
#endif
    const char*                 a_string;
    const wchar_t*              a_wide_string;
    void*                       a_pointer;
    signed char *               a_count_schar_pointer;
    short *                     a_count_short_pointer;
    int *                       a_count_int_pointer;
    long int *                  a_count_longint_pointer;
    long long int *             a_count_longlongint_pointer;
    int8_t *                    a_count_int8_t_pointer;
    int16_t *                   a_count_int16_t_pointer;
    int32_t *                   a_count_int32_t_pointer;
    int64_t *                   a_count_int64_t_pointer;
    int_fast8_t *               a_count_int_fast8_t_pointer;
    int_fast16_t *              a_count_int_fast16_t_pointer;
    int_fast32_t *              a_count_int_fast32_t_pointer;
    int_fast64_t *              a_count_int_fast64_t_pointer;
#if ENABLE_UNISTDIO
    /* The unistdio extensions.  */
    const uint8_t *             a_u8_string;
    const uint16_t *            a_u16_string;
    const uint32_t *            a_u32_string;
#endif
  }
  a;
}
argument;

/* Number of directly allocated arguments (no malloc() needed).  */
#define N_DIRECT_ALLOC_ARGUMENTS 7

typedef struct
{
  size_t count;
  argument *arg;
  argument direct_alloc_arg[N_DIRECT_ALLOC_ARGUMENTS];
}
arguments;


/* Fetch the arguments, putting them into a. */
#ifdef STATIC
STATIC
#else
extern
#endif
int PRINTF_FETCHARGS (va_list args, arguments *a);

#endif /* _PRINTF_ARGS_H */