1 /* A GNU-like <stdio.h>.
3 Copyright (C) 2004, 2007 Free Software Foundation, Inc.
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)
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.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 #if defined __need_FILE || defined __need___FILE
20 /* Special invocation convention inside glibc header files. */
22 #include @ABSOLUTE_STDIO_H@
25 /* Normal invocation convention. */
28 # include_next <stdio.h>
35 # include @ABSOLUTE_STDIO_H@
41 #if (@GNULIB_FFLUSH@ && @REPLACE_FFLUSH@) || (@GNULIB_FSEEKO@ && !@HAVE_FSEEKO@) || (@GNULIB_FTELLO@ && !@HAVE_FTELLO@)
43 # include <sys/types.h>
47 /* This feature is available in gcc versions 2.5 and later. */
48 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
49 # define __attribute__(Spec) /* empty */
51 /* The __-protected variants of `format' and `printf' attributes
52 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
53 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
54 # define __format__ format
55 # define __printf__ printf
60 /* The definition of GL_LINK_WARNING is copied here. */
68 #if @GNULIB_FPRINTF_POSIX@
69 # if @REPLACE_FPRINTF@
70 # define fprintf rpl_fprintf
71 extern int fprintf (FILE *fp, const char *format, ...)
72 __attribute__ ((__format__ (__printf__, 2, 3)));
74 #elif defined GNULIB_POSIXCHECK
77 (GL_LINK_WARNING ("fprintf is not always POSIX compliant - " \
78 "use gnulib module fprintf-posix for portable " \
79 "POSIX compliance"), \
83 #if @GNULIB_VFPRINTF_POSIX@
84 # if @REPLACE_VFPRINTF@
85 # define vfprintf rpl_vfprintf
86 extern int vfprintf (FILE *fp, const char *format, va_list args)
87 __attribute__ ((__format__ (__printf__, 2, 0)));
89 #elif defined GNULIB_POSIXCHECK
91 # define vfprintf(s,f,a) \
92 (GL_LINK_WARNING ("vfprintf is not always POSIX compliant - " \
93 "use gnulib module vfprintf-posix for portable " \
94 "POSIX compliance"), \
98 #if @GNULIB_PRINTF_POSIX@
100 /* Don't break __attribute__((format(printf,M,N))). */
101 # define printf __printf__
102 extern int printf (const char *format, ...)
103 __attribute__ ((__format__ (__printf__, 1, 2)));
105 #elif defined GNULIB_POSIXCHECK
108 (GL_LINK_WARNING ("printf is not always POSIX compliant - " \
109 "use gnulib module printf-posix for portable " \
110 "POSIX compliance"), \
112 /* Don't break __attribute__((format(printf,M,N))). */
113 # define format(kind,m,n) format (__##kind##__, m, n)
114 # define __format__(kind,m,n) __format__ (__##kind##__, m, n)
115 # define ____printf____ __printf__
116 # define ____scanf____ __scanf__
117 # define ____strftime____ __strftime__
118 # define ____strfmon____ __strfmon__
121 #if @GNULIB_VPRINTF_POSIX@
122 # if @REPLACE_VPRINTF@
123 # define vprintf rpl_vprintf
124 extern int vprintf (const char *format, va_list args)
125 __attribute__ ((__format__ (__printf__, 1, 0)));
127 #elif defined GNULIB_POSIXCHECK
129 # define vprintf(f,a) \
130 (GL_LINK_WARNING ("vprintf is not always POSIX compliant - " \
131 "use gnulib module vprintf-posix for portable " \
132 "POSIX compliance"), \
136 #if @GNULIB_SNPRINTF@
137 # if @REPLACE_SNPRINTF@
138 # define snprintf rpl_snprintf
140 # if @REPLACE_SNPRINTF@ || !@HAVE_DECL_SNPRINTF@
141 extern int snprintf (char *str, size_t size, const char *format, ...)
142 __attribute__ ((__format__ (__printf__, 3, 4)));
144 #elif defined GNULIB_POSIXCHECK
147 (GL_LINK_WARNING ("snprintf is unportable - " \
148 "use gnulib module snprintf for portability"), \
152 #if @GNULIB_VSNPRINTF@
153 # if @REPLACE_VSNPRINTF@
154 # define vsnprintf rpl_vsnprintf
156 # if @REPLACE_VSNPRINTF@ || !@HAVE_DECL_VSNPRINTF@
157 extern int vsnprintf (char *str, size_t size, const char *format, va_list args)
158 __attribute__ ((__format__ (__printf__, 3, 0)));
160 #elif defined GNULIB_POSIXCHECK
162 # define vsnprintf(b,s,f,a) \
163 (GL_LINK_WARNING ("vsnprintf is unportable - " \
164 "use gnulib module vsnprintf for portability"), \
165 vsnprintf (b, s, f, a))
168 #if @GNULIB_SPRINTF_POSIX@
169 # if @REPLACE_SPRINTF@
170 # define sprintf rpl_sprintf
171 extern int sprintf (char *str, const char *format, ...)
172 __attribute__ ((__format__ (__printf__, 2, 3)));
174 #elif defined GNULIB_POSIXCHECK
177 (GL_LINK_WARNING ("sprintf is not always POSIX compliant - " \
178 "use gnulib module sprintf-posix for portable " \
179 "POSIX compliance"), \
183 #if @GNULIB_VSPRINTF_POSIX@
184 # if @REPLACE_VSPRINTF@
185 # define vsprintf rpl_vsprintf
186 extern int vsprintf (char *str, const char *format, va_list args)
187 __attribute__ ((__format__ (__printf__, 2, 0)));
189 #elif defined GNULIB_POSIXCHECK
191 # define vsprintf(b,f,a) \
192 (GL_LINK_WARNING ("vsprintf is not always POSIX compliant - " \
193 "use gnulib module vsprintf-posix for portable " \
194 "POSIX compliance"), \
198 #if @GNULIB_VASPRINTF@
199 # if @REPLACE_VASPRINTF@
200 # define asprintf rpl_asprintf
201 # define vasprintf rpl_vasprintf
203 # if @REPLACE_VASPRINTF@ || !@HAVE_VASPRINTF@
204 /* Write formatted output to a string dynamically allocated with malloc().
205 If the memory allocation succeeds, store the address of the string in
206 *RESULT and return the number of resulting bytes, excluding the trailing
207 NUL. Upon memory allocation error, or some other error, return -1. */
208 extern int asprintf (char **result, const char *format, ...)
209 __attribute__ ((__format__ (__printf__, 2, 3)));
210 extern int vasprintf (char **result, const char *format, va_list args)
211 __attribute__ ((__format__ (__printf__, 2, 0)));
215 #if @GNULIB_FFLUSH@ && @REPLACE_FFLUSH@
216 /* Provide fseek, fseeko functions that are aware of a preceding fflush(). */
217 # define fseeko rpl_fseeko
218 extern int fseeko (FILE *fp, off_t offset, int whence);
219 # define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence)
220 #elif @GNULIB_FSEEKO@
222 /* Assume 'off_t' is the same type as 'long'. */
223 typedef int verify_fseeko_types[2 * (sizeof (off_t) == sizeof (long)) - 1];
224 # define fseeko fseek
228 # define fseeko(f,o,w) \
229 (GL_LINK_WARNING ("fseeko is unportable - " \
230 "use gnulib module fseeko for portability"), \
236 /* Assume 'off_t' is the same type as 'long'. */
237 typedef int verify_ftello_types[2 * (sizeof (off_t) == sizeof (long)) - 1];
238 # define ftello ftell
243 (GL_LINK_WARNING ("ftello is unportable - " \
244 "use gnulib module ftello for portability"), \
249 # if @REPLACE_FFLUSH@
250 # define fflush rpl_fflush
251 /* Flush all pending data on STREAM according to POSIX rules. Both
252 output and seekable input streams are supported. */
253 extern int fflush (FILE *gl_stream);
255 #elif defined GNULIB_POSIXCHECK
258 (GL_LINK_WARNING ("fflush is not always POSIX compliant - " \
259 "use gnulib module fflush for portable " \
260 "POSIX compliance"), \
268 #endif /* _GL_STDIO_H */