/* Define ISO C stdio on top of C++ iostreams.
- Copyright (C) 1991-2017 Free Software Foundation, Inc.
+ Copyright (C) 1991-2020 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
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/>. */
+ <https://www.gnu.org/licenses/>. */
/*
* ISO C99 Standard: 7.19 Input/output <stdio.h>
*/
#ifndef _STDIO_H
+#define _STDIO_H 1
-#if !defined __need_FILE && !defined __need___FILE
-# define _STDIO_H 1
-# define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
-# include <bits/libc-header-start.h>
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
__BEGIN_DECLS
-# define __need_size_t
-# define __need_NULL
-# include <stddef.h>
+#define __need_size_t
+#define __need_NULL
+#include <stddef.h>
-# include <bits/types.h>
-# define __need_FILE
-# define __need___FILE
-#endif /* Don't need FILE. */
+#define __need___va_list
+#include <stdarg.h>
+#include <bits/types.h>
+#include <bits/types/__fpos_t.h>
+#include <bits/types/__fpos64_t.h>
+#include <bits/types/__FILE.h>
+#include <bits/types/FILE.h>
+#include <bits/types/struct_FILE.h>
-#if !defined __FILE_defined && defined __need_FILE
-
-/* Define outside of namespace so the C++ is happy. */
-struct _IO_FILE;
-
-/* The opaque type of streams. This is the definition used elsewhere. */
-typedef struct _IO_FILE FILE;
-
-# define __FILE_defined 1
-#endif /* FILE not defined. */
-#undef __need_FILE
-
-
-#if !defined ____FILE_defined && defined __need___FILE
-
-/* The opaque type of streams. This is the definition used elsewhere. */
-typedef struct _IO_FILE __FILE;
-
-# define ____FILE_defined 1
-#endif /* __FILE not defined. */
-#undef __need___FILE
-
-
-#ifdef _STDIO_H
-#define _STDIO_USES_IOSTREAM
-
-#include <libio.h>
+#ifdef __USE_GNU
+# include <bits/types/cookie_io_functions_t.h>
+#endif
#if defined __USE_XOPEN || defined __USE_XOPEN2K8
# ifdef __GNUC__
# ifndef _VA_LIST_DEFINED
-typedef _G_va_list va_list;
+typedef __gnuc_va_list va_list;
# define _VA_LIST_DEFINED
# endif
# else
/* The type of the second argument to `fgetpos' and `fsetpos'. */
#ifndef __USE_FILE_OFFSET64
-typedef _G_fpos_t fpos_t;
+typedef __fpos_t fpos_t;
#else
-typedef _G_fpos64_t fpos_t;
+typedef __fpos64_t fpos_t;
#endif
#ifdef __USE_LARGEFILE64
-typedef _G_fpos64_t fpos64_t;
+typedef __fpos64_t fpos64_t;
#endif
/* The possibilities for the third argument to `setvbuf'. */
/* Default buffer size. */
-#ifndef BUFSIZ
-# define BUFSIZ _IO_BUFSIZ
-#endif
+#define BUFSIZ 8192
-/* End of file character.
- Some things throughout the library rely on this being -1. */
-#ifndef EOF
-# define EOF (-1)
-#endif
+/* The value returned by fgetc and similar functions to indicate the
+ end of the file. */
+#define EOF (-1)
/* The possibilities for the third argument to `fseek'.
/* Standard streams. */
-extern struct _IO_FILE *stdin; /* Standard input stream. */
-extern struct _IO_FILE *stdout; /* Standard output stream. */
-extern struct _IO_FILE *stderr; /* Standard error output stream. */
+extern FILE *stdin; /* Standard input stream. */
+extern FILE *stdout; /* Standard output stream. */
+extern FILE *stderr; /* Standard error output stream. */
/* C89/C99 say they're macros. Make them happy. */
#define stdin stdin
#define stdout stdout
const char *__new) __THROW;
#endif
+#ifdef __USE_GNU
+/* Flags for renameat2. */
+# define RENAME_NOREPLACE (1 << 0)
+# define RENAME_EXCHANGE (1 << 1)
+# define RENAME_WHITEOUT (1 << 2)
+
+/* Rename file OLD relative to OLDFD to NEW relative to NEWFD, with
+ additional flags. */
+extern int renameat2 (int __oldfd, const char *__old, int __newfd,
+ const char *__new, unsigned int __flags) __THROW;
+#endif
+
/* Create a temporary file and open it read/write.
This function is a possible cancellation point and therefore not
and uses the given functions for input and output. */
extern FILE *fopencookie (void *__restrict __magic_cookie,
const char *__restrict __modes,
- _IO_cookie_io_functions_t __io_funcs) __THROW __wur;
+ cookie_io_functions_t __io_funcs) __THROW __wur;
#endif
#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
This function is a possible cancellation point and therefore not
marked with __THROW. */
extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,
- _G_va_list __arg);
+ __gnuc_va_list __arg);
/* Write formatted output to stdout from argument list ARG.
This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern int vprintf (const char *__restrict __format, _G_va_list __arg);
+extern int vprintf (const char *__restrict __format, __gnuc_va_list __arg);
/* Write formatted output to S from argument list ARG. */
extern int vsprintf (char *__restrict __s, const char *__restrict __format,
- _G_va_list __arg) __THROWNL;
+ __gnuc_va_list __arg) __THROWNL;
#if defined __USE_ISOC99 || defined __USE_UNIX98
/* Maximum chars of output to write in MAXLEN. */
__THROWNL __attribute__ ((__format__ (__printf__, 3, 4)));
extern int vsnprintf (char *__restrict __s, size_t __maxlen,
- const char *__restrict __format, _G_va_list __arg)
+ const char *__restrict __format, __gnuc_va_list __arg)
__THROWNL __attribute__ ((__format__ (__printf__, 3, 0)));
#endif
/* Write formatted output to a string dynamically allocated with `malloc'.
Store the address of the string in *PTR. */
extern int vasprintf (char **__restrict __ptr, const char *__restrict __f,
- _G_va_list __arg)
+ __gnuc_va_list __arg)
__THROWNL __attribute__ ((__format__ (__printf__, 2, 0))) __wur;
extern int __asprintf (char **__restrict __ptr,
const char *__restrict __fmt, ...)
#ifdef __USE_XOPEN2K8
/* Write formatted output to a file descriptor. */
extern int vdprintf (int __fd, const char *__restrict __fmt,
- _G_va_list __arg)
+ __gnuc_va_list __arg)
__attribute__ ((__format__ (__printf__, 2, 0)));
extern int dprintf (int __fd, const char *__restrict __fmt, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
extern int sscanf (const char *__restrict __s,
const char *__restrict __format, ...) __THROW;
-#if defined __USE_ISOC99 && !defined __USE_GNU \
- && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
- && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
+/* For historical reasons, the C99-compliant versions of the scanf
+ functions are at alternative names. When __LDBL_COMPAT or
+ __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI are in effect, this is handled in
+ bits/stdio-ldbl.h. */
+#include <bits/floatn.h>
+#if !__GLIBC_USE (DEPRECATED_SCANF) && !defined __LDBL_COMPAT \
+ && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
# ifdef __REDIRECT
-/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[
- GNU extension which conflicts with valid %a followed by letter
- s, S or [. */
extern int __REDIRECT (fscanf, (FILE *__restrict __stream,
const char *__restrict __format, ...),
__isoc99_fscanf) __wur;
This function is a possible cancellation point and therefore not
marked with __THROW. */
extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,
- _G_va_list __arg)
+ __gnuc_va_list __arg)
__attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
/* Read formatted input from stdin into argument list ARG.
This function is a possible cancellation point and therefore not
marked with __THROW. */
-extern int vscanf (const char *__restrict __format, _G_va_list __arg)
+extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
/* Read formatted input from S into argument list ARG. */
extern int vsscanf (const char *__restrict __s,
- const char *__restrict __format, _G_va_list __arg)
+ const char *__restrict __format, __gnuc_va_list __arg)
__THROW __attribute__ ((__format__ (__scanf__, 2, 0)));
-# if !defined __USE_GNU \
- && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
- && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
-# ifdef __REDIRECT
-/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[
- GNU extension which conflicts with valid %a followed by letter
- s, S or [. */
+/* Same redirection as above for the v*scanf family. */
+# if !__GLIBC_USE (DEPRECATED_SCANF)
+# if defined __REDIRECT && !defined __LDBL_COMPAT \
+ && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
extern int __REDIRECT (vfscanf,
(FILE *__restrict __s,
- const char *__restrict __format, _G_va_list __arg),
+ const char *__restrict __format, __gnuc_va_list __arg),
__isoc99_vfscanf)
__attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
extern int __REDIRECT (vscanf, (const char *__restrict __format,
- _G_va_list __arg), __isoc99_vscanf)
+ __gnuc_va_list __arg), __isoc99_vscanf)
__attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
extern int __REDIRECT_NTH (vsscanf,
(const char *__restrict __s,
const char *__restrict __format,
- _G_va_list __arg), __isoc99_vsscanf)
+ __gnuc_va_list __arg), __isoc99_vsscanf)
__attribute__ ((__format__ (__scanf__, 2, 0)));
-# else
+# elif !defined __REDIRECT
extern int __isoc99_vfscanf (FILE *__restrict __s,
const char *__restrict __format,
- _G_va_list __arg) __wur;
+ __gnuc_va_list __arg) __wur;
extern int __isoc99_vscanf (const char *__restrict __format,
- _G_va_list __arg) __wur;
+ __gnuc_va_list __arg) __wur;
extern int __isoc99_vsscanf (const char *__restrict __s,
const char *__restrict __format,
- _G_va_list __arg) __THROW;
+ __gnuc_va_list __arg) __THROW;
# define vfscanf __isoc99_vfscanf
# define vscanf __isoc99_vscanf
# define vsscanf __isoc99_vsscanf
marked with __THROW. */
extern int getchar (void);
-/* The C standard explicitly says this is a macro, so we always do the
- optimization for it. */
-#define getc(_fp) _IO_getc (_fp)
-
#ifdef __USE_POSIX199506
/* These are defined in POSIX.1:1996.
marked with __THROW. */
extern int putchar (int __c);
-/* The C standard explicitly says this can be a macro,
- so we always do the optimization for it. */
-#define putc(_ch, _fp) _IO_putc (_ch, _fp)
-
#ifdef __USE_MISC
/* Faster version when locking is not necessary.
This function is a possible cancellation point and therefore not
marked with __THROW. */
extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
- __wur;
+ __wur __attr_access ((__write_only__, 1, 2));
#if __GLIBC_USE (DEPRECATED_GETS)
/* Get a newline-terminated string from stdin, removing the newline.
or due to the implementation it is a cancellation point and
therefore not marked with __THROW. */
extern char *fgets_unlocked (char *__restrict __s, int __n,
- FILE *__restrict __stream) __wur;
+ FILE *__restrict __stream) __wur
+ __attr_access ((__write_only__, 1, 2));
#endif
cancellation point. But due to similarity with an POSIX interface
or due to the implementation they are cancellation points and
therefore not marked with __THROW. */
-extern _IO_ssize_t __getdelim (char **__restrict __lineptr,
- size_t *__restrict __n, int __delimiter,
- FILE *__restrict __stream) __wur;
-extern _IO_ssize_t getdelim (char **__restrict __lineptr,
- size_t *__restrict __n, int __delimiter,
- FILE *__restrict __stream) __wur;
+extern __ssize_t __getdelim (char **__restrict __lineptr,
+ size_t *__restrict __n, int __delimiter,
+ FILE *__restrict __stream) __wur;
+extern __ssize_t getdelim (char **__restrict __lineptr,
+ size_t *__restrict __n, int __delimiter,
+ FILE *__restrict __stream) __wur;
/* Like `getdelim', but reads up to a newline.
cancellation point. But due to similarity with an POSIX interface
or due to the implementation it is a cancellation point and
therefore not marked with __THROW. */
-extern _IO_ssize_t getline (char **__restrict __lineptr,
- size_t *__restrict __n,
- FILE *__restrict __stream) __wur;
+extern __ssize_t getline (char **__restrict __lineptr,
+ size_t *__restrict __n,
+ FILE *__restrict __stream) __wur;
#endif
__THROWNL __attribute__ ((__format__ (__printf__, 2, 3)));
extern int obstack_vprintf (struct obstack *__restrict __obstack,
const char *__restrict __format,
- _G_va_list __args)
+ __gnuc_va_list __args)
__THROWNL __attribute__ ((__format__ (__printf__, 2, 0)));
#endif /* Use GNU. */
#endif /* POSIX */
#if defined __USE_XOPEN && !defined __USE_XOPEN2K && !defined __USE_GNU
-/* The X/Open standard requires some functions and variables to be
- declared here which do not belong into this header. But we have to
- follow. In GNU mode we don't do this nonsense. */
-# define __need_getopt
-# include <getopt.h>
-#endif /* X/Open, but not issue 6 and not for GNU. */
+/* X/Open Issues 1-5 required getopt to be declared in this
+ header. It was removed in Issue 6. GNU follows Issue 6. */
+# include <bits/getopt_posix.h>
+#endif
+
+/* Slow-path routines used by the optimized inline functions in
+ bits/stdio.h. */
+extern int __uflow (FILE *);
+extern int __overflow (FILE *, int);
/* If we are compiling with optimizing read this file. It contains
several optimizing inline functions and macros. */
#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
# include <bits/stdio2.h>
#endif
-#ifdef __LDBL_COMPAT
+
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
# include <bits/stdio-ldbl.h>
#endif
__END_DECLS
#endif /* <stdio.h> included. */
-
-#endif /* !_STDIO_H */
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