1/* Decomposed printf argument list.
2 Copyright (C) 1999, 2002-2003, 2006-2007, 2011-2019 Free Software
3 Foundation, Inc.
4
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)
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 General Public License for more details.
14
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/>. */
17
18#ifndef _PRINTF_ARGS_H
19#define _PRINTF_ARGS_H
20
21/* This file can be parametrized with the following macros:
22 ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions.
23 PRINTF_FETCHARGS Name of the function to be declared.
24 STATIC Set to 'static' to declare the function static. */
25
26/* Default parameters. */
27#ifndef PRINTF_FETCHARGS
28# define PRINTF_FETCHARGS printf_fetchargs
29#endif
30
31/* Get size_t. */
32#include <stddef.h>
33
34/* Get wchar_t. */
35#if HAVE_WCHAR_T
36# include <stddef.h>
37#endif
38
39/* Get wint_t. */
40#if HAVE_WINT_T
41# include <wchar.h>
42#endif
43
44/* Get va_list. */
45#include <stdarg.h>
46
47
48/* Argument types */
49typedef enum
50{
51 TYPE_NONE,
52 TYPE_SCHAR,
53 TYPE_UCHAR,
54 TYPE_SHORT,
55 TYPE_USHORT,
56 TYPE_INT,
57 TYPE_UINT,
58 TYPE_LONGINT,
59 TYPE_ULONGINT,
60#if HAVE_LONG_LONG_INT
61 TYPE_LONGLONGINT,
62 TYPE_ULONGLONGINT,
63#endif
64 TYPE_DOUBLE,
65 TYPE_LONGDOUBLE,
66 TYPE_CHAR,
67#if HAVE_WINT_T
68 TYPE_WIDE_CHAR,
69#endif
70 TYPE_STRING,
71#if HAVE_WCHAR_T
72 TYPE_WIDE_STRING,
73#endif
74 TYPE_POINTER,
75 TYPE_COUNT_SCHAR_POINTER,
76 TYPE_COUNT_SHORT_POINTER,
77 TYPE_COUNT_INT_POINTER,
78 TYPE_COUNT_LONGINT_POINTER
79#if HAVE_LONG_LONG_INT
80, TYPE_COUNT_LONGLONGINT_POINTER
81#endif
82#if ENABLE_UNISTDIO
83 /* The unistdio extensions. */
84, TYPE_U8_STRING
85, TYPE_U16_STRING
86, TYPE_U32_STRING
87#endif
88} arg_type;
89
90/* Polymorphic argument */
91typedef struct
92{
93 arg_type type;
94 union
95 {
96 signed char a_schar;
97 unsigned char a_uchar;
98 short a_short;
99 unsigned short a_ushort;
100 int a_int;
101 unsigned int a_uint;
102 long int a_longint;
103 unsigned long int a_ulongint;
104#if HAVE_LONG_LONG_INT
105 long long int a_longlongint;
106 unsigned long long int a_ulonglongint;
107#endif
108 float a_float;
109 double a_double;
110 long double a_longdouble;
111 int a_char;
112#if HAVE_WINT_T
113 wint_t a_wide_char;
114#endif
115 const char* a_string;
116#if HAVE_WCHAR_T
117 const wchar_t* a_wide_string;
118#endif
119 void* a_pointer;
120 signed char * a_count_schar_pointer;
121 short * a_count_short_pointer;
122 int * a_count_int_pointer;
123 long int * a_count_longint_pointer;
124#if HAVE_LONG_LONG_INT
125 long long int * a_count_longlongint_pointer;
126#endif
127#if ENABLE_UNISTDIO
128 /* The unistdio extensions. */
129 const uint8_t * a_u8_string;
130 const uint16_t * a_u16_string;
131 const uint32_t * a_u32_string;
132#endif
133 }
134 a;
135}
136argument;
137
138/* Number of directly allocated arguments (no malloc() needed). */
139#define N_DIRECT_ALLOC_ARGUMENTS 7
140
141typedef struct
142{
143 size_t count;
144 argument *arg;
145 argument direct_alloc_arg[N_DIRECT_ALLOC_ARGUMENTS];
146}
147arguments;
148
149
150/* Fetch the arguments, putting them into a. */
151#ifdef STATIC
152STATIC
153#else
154extern
155#endif
156int PRINTF_FETCHARGS (va_list args, arguments *a);
157
158#endif /* _PRINTF_ARGS_H */
159