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1 office 1 /* Decomposed printf argument list.
2 Copyright (C) 1999, 2002-2003, 2006-2007, 2011-2015 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 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 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 <http://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 */
49 typedef 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
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
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 */
91 typedef 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
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
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 }
136 argument;
137  
138 /* Number of directly allocated arguments (no malloc() needed). */
139 #define N_DIRECT_ALLOC_ARGUMENTS 7
140  
141 typedef struct
142 {
143 size_t count;
144 argument *arg;
145 argument direct_alloc_arg[N_DIRECT_ALLOC_ARGUMENTS];
146 }
147 arguments;
148  
149  
150 /* Fetch the arguments, putting them into a. */
151 #ifdef STATIC
152 STATIC
153 #else
154 extern
155 #endif
156 int PRINTF_FETCHARGS (va_list args, arguments *a);
157  
158 #endif /* _PRINTF_ARGS_H */