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
| /* Optimizing macros and inline functions for stdio functions.
Copyright (C) 1998-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _STDIO_H
# error "Never include <bits/stdio.h> directly; use <stdio.h> instead."
#endif
#ifndef __extern_inline
# define __STDIO_INLINE inline
#else
# define __STDIO_INLINE __extern_inline
#endif
#ifdef __USE_EXTERN_INLINES
/* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different
inline. */
# if !(__USE_FORTIFY_LEVEL > 0 && defined __fortify_function)
/* Write formatted output to stdout from argument list ARG. */
__STDIO_INLINE int
vprintf (const char *__restrict __fmt, _G_va_list __arg)
{
return vfprintf (stdout, __fmt, __arg);
}
# endif
/* Read a character from stdin. */
__STDIO_INLINE int
getchar (void)
{
return _IO_getc (stdin);
}
# ifdef __USE_MISC
/* Faster version when locking is not necessary. */
__STDIO_INLINE int
fgetc_unlocked (FILE *__fp)
{
return _IO_getc_unlocked (__fp);
}
# endif /* misc */
# ifdef __USE_POSIX
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
getc_unlocked (FILE *__fp)
{
return _IO_getc_unlocked (__fp);
}
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
getchar_unlocked (void)
{
return _IO_getc_unlocked (stdin);
}
# endif /* POSIX */
/* Write a character to stdout. */
__STDIO_INLINE int
putchar (int __c)
{
return _IO_putc (__c, stdout);
}
# ifdef __USE_MISC
/* Faster version when locking is not necessary. */
__STDIO_INLINE int
fputc_unlocked (int __c, FILE *__stream)
{
return _IO_putc_unlocked (__c, __stream);
}
# endif /* misc */
# ifdef __USE_POSIX
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
putc_unlocked (int __c, FILE *__stream)
{
return _IO_putc_unlocked (__c, __stream);
}
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
putchar_unlocked (int __c)
{
return _IO_putc_unlocked (__c, stdout);
}
# endif /* POSIX */
# ifdef __USE_GNU
/* Like `getdelim', but reads up to a newline. */
__STDIO_INLINE _IO_ssize_t
getline (char **__lineptr, size_t *__n, FILE *__stream)
{
return __getdelim (__lineptr, __n, '\n', __stream);
}
# endif /* GNU */
# ifdef __USE_MISC
/* Faster versions when locking is not required. */
__STDIO_INLINE int
__NTH (feof_unlocked (FILE *__stream))
{
return _IO_feof_unlocked (__stream);
}
/* Faster versions when locking is not required. */
__STDIO_INLINE int
__NTH (ferror_unlocked (FILE *__stream))
{
return _IO_ferror_unlocked (__stream);
}
# endif /* misc */
#endif /* Use extern inlines. */
#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__ \
&& !defined __cplusplus
/* Perform some simple optimizations. */
# define fread_unlocked(ptr, size, n, stream) \
(__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
&& (size_t) (size) * (size_t) (n) <= 8 \
&& (size_t) (size) != 0) \
? ({ char *__ptr = (char *) (ptr); \
FILE *__stream = (stream); \
size_t __cnt; \
for (__cnt = (size_t) (size) * (size_t) (n); \
__cnt > 0; --__cnt) \
{ \
int __c = _IO_getc_unlocked (__stream); \
if (__c == EOF) \
break; \
*__ptr++ = __c; \
} \
((size_t) (size) * (size_t) (n) - __cnt) \
/ (size_t) (size); }) \
: (((__builtin_constant_p (size) && (size_t) (size) == 0) \
|| (__builtin_constant_p (n) && (size_t) (n) == 0)) \
/* Evaluate all parameters once. */ \
? ((void) (ptr), (void) (stream), (void) (size), \
(void) (n), (size_t) 0) \
: fread_unlocked (ptr, size, n, stream))))
# define fwrite_unlocked(ptr, size, n, stream) \
(__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
&& (size_t) (size) * (size_t) (n) <= 8 \
&& (size_t) (size) != 0) \
? ({ const char *__ptr = (const char *) (ptr); \
FILE *__stream = (stream); \
size_t __cnt; \
for (__cnt = (size_t) (size) * (size_t) (n); \
__cnt > 0; --__cnt) \
if (_IO_putc_unlocked (*__ptr++, __stream) == EOF) \
break; \
((size_t) (size) * (size_t) (n) - __cnt) \
/ (size_t) (size); }) \
: (((__builtin_constant_p (size) && (size_t) (size) == 0) \
|| (__builtin_constant_p (n) && (size_t) (n) == 0)) \
/* Evaluate all parameters once. */ \
? ((void) (ptr), (void) (stream), (void) (size), \
(void) (n), (size_t) 0) \
: fwrite_unlocked (ptr, size, n, stream))))
#endif
/* Define helper macro. */
#undef __STDIO_INLINE
|