glibc/libio/stdio.h
Ulrich Drepper f41c80910d Update.
1997-08-24 12:24  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in (INSTALL): Quote `$'.

	* libc.map: Add __xpg_basename.

	* csu/Makefile (initfini.s): Disable optimization.

	* elf/dl-deps.c: Implement handling of DL_FILTER.

	* elf/dl-load.c (_dl_init_paths): Add error check.

	* intl/finddomain.c (_nl_find_domain): Correct comment.
	* intl/localealias.c: Include <bits/libc-lock.h> not <libc-lock.h>.

	* libio/stdio.h: Make {,v}snprintf available if __USE_BSD.
	Change extern inline functions to work correctly in C++.

	* locale/iso-4217.def: Update for more recent ISO 4217 version.

	* locale/loadlocale.c (_nl_load_locale): Add cast.

	* manual/message.texi: Finish gettext section.

	* posix/getopt_init.c: Don't use relative #include path.
	(__getopt_clean_environment): Change function to take pointer to
	environment as argument.  Optimize generation of test string a bit.
	* sysdeps/unix/sysv/linux/init-first.c: Call __getopt_clean_environment
	with additional argument.

	* poisx/glob.c: Add prototype for next_brace_sub.

	* sysdeps/generic/dl-sysdep.c: Recognize AT_BASE value on auxiliary
	vector.

	* sysdeps/i386/dl-machine.h (elf_machine_load_address): Rewrite
	to not generate relocation entry.  Suggested by Richard Henderson.
	(ELF_MACHINE_BEFORE_RTLD_RELOC): Removed.
	(elf_machine_runtime_setup): Add .aligns.

	* sysdeps/i386/fpu/fraiseexcpt.c: Add volatile to asms.

	* sysdeps/i386/fpu/bits/mathinline.h: Partially undo change of
	1997-08-14 03:14.  gcc 2.7.2* is really broken in some aspects.

	* sysdeps/standalone/i386/i386.h: Clean up asm statements a bit.
	* sysdeps/standalone/i960/i960ca.h: Likewise.

1997-08-22 19:04  Richard Henderson  <rth@cygnus.com>

	* elf/rtld.c (_dl_start): Init _dl_rtld_map.l_opencount due to
	undocumented test addition in _dl_map_object.

	Support ET_EXEC versions of ld.so, for debugging at least:

	* elf/dl-load.c (_dl_map_object): Add_name_to_object could get
	called despite the DT_SONAME != NULL test, segfaulting.  Simplify
	the code here as well.
	* elf/dl-lookup.c (do_lookup): Skip objects with no symtab.
	(_dl_setup_hash): Likewise for hash tables.
	* elf/dl-version.c (_dl_check_map_versions): Likewise for strtabs.
	* elf/rtld.c (_dl_start): Likewise for rpath.
	(_dl_rtld_libname2): New variable.
	(dl_main): Use it to add an soname for ourselves when we don't have
	one of our own.  Base it on the target's .interp.
	(dl_main): Again, skip printing of objects that don't have strtabs.

	Sparc 32 merge:

	* elf/dl-runtime.c (ELF_FIXUP_RETURN_VALUE): Provide default value.
	(fixup): Simplify code.  Use ELF_FIXUP_RETURN_VALUE.
	(profile_fixup): Likewise, though this still needs fixing for
	Sparc32 and PPC.
	* sysdeps/powerpc/dl-machine.h: Transmute ELF_FIXUP_RETURNS_ADDRESS
	to ELF_FIXUP_RETURN_VALUE.

	* sysdeps/sparc/sparc32/dl-machine.h: Implement lazy relocation.
	Fix up _dl_start_user to handle _dl_skip_args properly.
	Use _dl_hwcap to determine if "flush" is available/needed.

	* sysdeps/sparc/configure.in: Remove.  It doesn't actually do
	anything anymore, and what it did do is done somewhere else.
	* sysdeps/sparc/configure: Likewise.

	* sysdeps/sparc/fpu/bits/mathdef.h (FP_ILOGB0, FP_ILOGBNAN): New.

	* sysdeps/sparc/fpu/fraiseexcpt.c: Rearrange for smaller code.

	* sysdeps/sparc/sparc32/Makefile: Fix sparc->sparc/sparc32 bits
	in divrem expansions.

	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h (END, LOC): New
	definitions for assembly syntax differences.

	* sysdeps/sparc/sparc32/__longjmp.S: %g6,%g7 are reserved to the
	"system".  Use %g2,%g3 instead.  Use new local label macro.
	* sysdeps/sparc/sparc32/add_n.S: Use <sysdep.h> and ENTRY, END,
	and LOC for proper assembly headers/footers.
	* sysdeps/sparc/sparc32/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc32/alloca.S: Likewise.
	* sysdeps/sparc/sparc32/dotmul.S: Likewise.
	* sysdeps/sparc/sparc32/lshift.S: Likewise.
	* sysdeps/sparc/sparc32/mul_1.S: Likewise.
	* sysdeps/sparc/sparc32/rshift.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/mul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/submul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/udiv_qrnnd.S: Likewise.
	* sysdeps/sparc/sparc32/sub_n.S: Likewise.
	* sysdeps/sparc/sparc32/submul_1.S: Likewise.
	* sysdeps/sparc/sparc32/udiv_qrnnd.S: Likewise.
	* sysdeps/sparc/sparc32/umul.S: Likewise.
	* sysdeps/sparc/sparc32/divrem.m4: Likewise.
	* sysdeps/sparc/sparc32/rem.S: Regenerate.
	* sysdeps/sparc/sparc32/sdiv.S: Regenerate.
	* sysdeps/sparc/sparc32/udiv.S: Regenerate.
	* sysdeps/sparc/sparc32/urem.S: Regenerate.

	* sysdeps/sparc/sparc32/sparcv8/dotmul.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/rem.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/sdiv.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/udiv.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/umul.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/urem.S: New file.

	* sysdeps/sparc/sparc32/bsd-_setjmp.S: Dike out.
	* sysdeps/sparc/sparc32/bsd-setjmp.S: Likewise.
	* sysdeps/sparc/sparc32/setjmp.S: Add _setjmp and setjmp entry points.

	* sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S:
	Clean up PIC code.

	* sysdeps/sparc/sparc32/elf/start.S: New file, slightly modified
	from the sparc64 version.
	* sysdeps/sparc/sparc32/elf/start.c: Removed.

	* sysdeps/unix/sysv/linux/sparc/sparc32/init-first.h: Rewrite in
	assembly based on the sparc64 version.

	* sysdeps/sparc/sparc32/fpu/bits/fenv.h: Duh.  Use proper syntax
	for manipulating %fsr.
	* sysdeps/sparc/sparc32/fpu/fpu_control.h: Make IEEE conformance
	be the default.

	* elf/elf.h (HWCAP_SPARC_*): New definitions.
	* elf/rtld.c (_dl_hwcap): New variable.
	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Record AT_HWCAP.

	* sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c: New file.
	Attempt to get hold of the page size based on what we might have
	been told at startup time in _dl_pagesize.  This will be obsolete
	when I finish the kernel hooks for a proper sysconf(), stay tuned.

	Sparc 64 merge:

	* sysdeps/sparc/sparc64/dl-machine.h (ELF_FIXUP_RETURN_VALUE): New.
	Figure out the right thing to return based on the .plt format.

	* sysdeps/sparc/sparc64/fpu/fpu_control.h: Update comment.

	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h (__dev_t):
	Should have been 64-bits wide.

	* sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: sll->sllx,
	optimize for branch delay slot usage.

1997-08-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* csu/Makefile ($(objpfx)crt%.o): Fix a missing *.so -> *.os
	change.

1997-08-20  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/libm-test.c (identities): Change epsilon.

	* sysdeps/i386/fpu/bits/mathinline.h: Correct arguments to fabs,
	fabsf, fabsl, __fabsl.

	* sysdeps/libm-i387/e_remainderl.S: Pop extra value from FPU stack.
	* sysdeps/libm-ieee754/s_csinhl.c: Include <fenv.h>.
1997-08-24 10:55:18 +00:00

603 lines
18 KiB
C

/* Define ISO C stdio on top of C++ iostreams.
Copyright (C) 1991, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* ISO C Standard: 4.9 INPUT/OUTPUT <stdio.h>
*/
#ifndef _STDIO_H
#if !defined __need_FILE
#define _STDIO_H 1
#include <features.h>
__BEGIN_DECLS
#define __need_size_t
#define __need_NULL
#include <stddef.h>
#include <bits/types.h>
#endif /* Don't need FILE. */
#undef __need_FILE
#ifndef __FILE_defined
/* The opaque type of streams. */
typedef struct _IO_FILE FILE;
#define __FILE_defined 1
#endif /* FILE not defined. */
#ifdef _STDIO_H
#define _STDIO_USES_IOSTREAM
#include <libio.h>
#ifdef __cplusplus
# define __STDIO_INLINE __inline
#else
# define __STDIO_INLINE extern __inline
#endif
/* The type of the second argument to `fgetpos' and `fsetpos'. */
typedef _G_fpos_t fpos_t;
/* Generate a unique file name (and possibly open it with mode "w+b"). */
extern char *__stdio_gen_tempname __P ((char *__buf, size_t __bufsize,
__const char *__dir,
__const char *__pfx,
int __dir_search,
size_t *__lenptr,
FILE **__streamptr));
/* Print out MESSAGE on the error output and abort. */
extern void __libc_fatal __P ((__const char *__message))
__attribute__ ((__noreturn__));
/* The possibilities for the third argument to `setvbuf'. */
#define _IOFBF 0 /* Fully buffered. */
#define _IOLBF 1 /* Line buffered. */
#define _IONBF 2 /* No buffering. */
/* Default buffer size. */
#ifndef BUFSIZ
#define BUFSIZ _IO_BUFSIZ
#endif
/* End of file character.
Some things throughout the library rely on this being -1. */
#ifndef EOF
#define EOF (-1)
#endif
/* The possibilities for the third argument to `fseek'.
These values should not be changed. */
#define SEEK_SET 0 /* Seek from beginning of file. */
#define SEEK_CUR 1 /* Seek from current position. */
#define SEEK_END 2 /* Seek from end of file. */
#ifdef __USE_SVID
/* Default path prefix for `tempnam' and `tmpnam'. */
#define P_tmpdir "/tmp"
#endif
/* Get the values:
L_tmpnam How long an array of chars must be to be passed to `tmpnam'.
TMP_MAX The minimum number of unique filenames generated by tmpnam
(and tempnam when it uses tmpnam's name space),
or tempnam (the two are separate).
L_ctermid How long an array to pass to `ctermid'.
L_cuserid How long an array to pass to `cuserid'.
FOPEN_MAX Minimum number of files that can be open at once.
FILENAME_MAX Maximum length of a filename. */
#include <bits/stdio_lim.h>
/* Standard streams. */
extern FILE *stdin, *stdout, *stderr;
/* Refer to the real names by default. */
#define stdin _IO_stdin
#define stdout _IO_stdout
#define stderr _IO_stderr
/* Remove file FILENAME. */
extern int remove __P ((__const char *__filename));
/* Rename file OLD to NEW. */
extern int rename __P ((__const char *__old, __const char *__new));
/* Create a temporary file and open it read/write. */
extern FILE *tmpfile __P ((void));
/* Generate a temporary filename. */
extern char *tmpnam __P ((char *__s));
#ifdef __USE_MISC
/* This is the reentrant variant of `tmpnam'. The only difference is
that it does not allow S to be NULL. */
extern char *tmpnam_r __P ((char *__s));
#endif
#if defined __USE_SVID || defined __USE_XOPEN
/* Generate a unique temporary filename using up to five characters of PFX
if it is not NULL. The directory to put this file in is searched for
as follows: First the environment variable "TMPDIR" is checked.
If it contains the name of a writable directory, that directory is used.
If not and if DIR is not NULL, that value is checked. If that fails,
P_tmpdir is tried and finally "/tmp". The storage for the filename
is allocated by `malloc'. */
extern char *tempnam __P ((__const char *__dir, __const char *__pfx));
#endif
/* Close STREAM. */
extern int fclose __P ((FILE *__stream));
/* Flush STREAM, or all streams if STREAM is NULL. */
extern int fflush __P ((FILE *__stream));
#ifdef __USE_MISC
/* Faster versions when locking is not required. */
extern int fclose_unlocked __P ((FILE *__stream));
extern int fflush_unlocked __P ((FILE *__stream));
#endif
#ifdef __USE_GNU
/* Close all streams. */
extern int __fcloseall __P ((void));
extern int fcloseall __P ((void));
#endif
/* Open a file and create a new stream for it. */
extern FILE *fopen __P ((__const char *__filename, __const char *__modes));
/* Open a file, replacing an existing stream with it. */
extern FILE *freopen __P ((__const char *__restrict __filename,
__const char *__restrict __modes,
FILE *__restrict __stream));
#ifdef __USE_POSIX
/* Create a new stream that refers to an existing system file descriptor. */
extern FILE *fdopen __P ((int __fd, __const char *__modes));
#endif
#ifdef __USE_GNU
/* Create a new stream that refers to the given magic cookie,
and uses the given functions for input and output. */
extern FILE *fopencookie __P ((void *__magic_cookie, __const char *__modes,
_IO_cookie_io_functions_t __io_funcs));
/* Open a stream that writes into a malloc'd buffer that is expanded as
necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
and the number of characters written on fflush or fclose. */
extern FILE *open_memstream __P ((char **__bufloc, size_t *__sizeloc));
#endif
/* If BUF is NULL, make STREAM unbuffered.
Else make it use buffer BUF, of size BUFSIZ. */
extern void setbuf __P ((FILE *__restrict __stream, char *__restrict __buf));
/* Make STREAM use buffering mode MODE.
If BUF is not NULL, use N bytes of it for buffering;
else allocate an internal buffer N bytes long. */
extern int setvbuf __P ((FILE *__restrict __stream, char *__restrict __buf,
int __modes, size_t __n));
#ifdef __USE_BSD
/* If BUF is NULL, make STREAM unbuffered.
Else make it use SIZE bytes of BUF for buffering. */
extern void setbuffer __P ((FILE *__stream, char *__buf, size_t __size));
/* Make STREAM line-buffered. */
extern void setlinebuf __P ((FILE *__stream));
#endif
/* Write formatted output to STREAM. */
extern int fprintf __P ((FILE *__restrict __stream,
__const char *__restrict __format, ...));
/* Write formatted output to stdout. */
extern int printf __P ((__const char *__restrict __format, ...));
/* Write formatted output to S. */
extern int sprintf __P ((char *__restrict __s,
__const char *__restrict __format, ...));
/* Write formatted output to S from argument list ARG. */
extern int vfprintf __P ((FILE *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
/* Write formatted output to stdout from argument list ARG. */
extern int vprintf __P ((__const char *__restrict __format,
_G_va_list __arg));
/* Write formatted output to S from argument list ARG. */
extern int vsprintf __P ((char *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
#ifdef __OPTIMIZE__
__STDIO_INLINE int
vprintf (const char *__restrict __fmt, _G_va_list __arg)
{
return vfprintf (stdout, __fmt, __arg);
}
#endif /* Optimizing. */
#if defined __USE_BSD || defined __USE_ISOC9X
/* Maximum chars of output to write in MAXLEN. */
extern int __snprintf __P ((char *__restrict __s, size_t __maxlen,
__const char *__restrict __format, ...));
extern int snprintf __P ((char *__restrict __s, size_t __maxlen,
__const char *__restrict __format, ...));
extern int __vsnprintf __P ((char *__restrict __s, size_t __maxlen,
__const char *__restrict __format,
_G_va_list __arg));
extern int vsnprintf __P ((char *__restrict __s, size_t __maxlen,
__const char *__restrict __format,
_G_va_list __arg));
#endif
#ifdef __USE_GNU
/* Write formatted output to a string dynamically allocated with `malloc'.
Store the address of the string in *PTR. */
extern int vasprintf __P ((char **__restrict __ptr,
__const char *__restrict __f, _G_va_list __arg));
extern int asprintf __P ((char **__restrict __ptr,
__const char *__restrict __fmt, ...));
/* Write formatted output to a file descriptor. */
extern int vdprintf __P ((int __fd, __const char *__restrict __fmt,
_G_va_list __arg));
extern int dprintf __P ((int __fd, __const char *__restrict __fmt, ...));
#endif
/* Read formatted input from STREAM. */
extern int fscanf __P ((FILE *__restrict __stream,
__const char *__restrict __format, ...));
/* Read formatted input from stdin. */
extern int scanf __P ((__const char *__restrict __format, ...));
/* Read formatted input from S. */
extern int sscanf __P ((__const char *__restrict __s,
__const char *__restrict __format, ...));
#ifdef __USE_GNU
/* Read formatted input from S into argument list ARG. */
extern int __vfscanf __P ((FILE *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
extern int vfscanf __P ((FILE *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
/* Read formatted input from stdin into argument list ARG. */
extern int __vscanf __P ((__const char *__restrict __format,
_G_va_list __arg));
extern int vscanf __P ((__const char *__restrict __format, _G_va_list __arg));
/* Read formatted input from S into argument list ARG. */
extern int __vsscanf __P ((__const char *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
extern int vsscanf __P ((__const char *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
#endif /* Use GNU. */
/* Read a character from STREAM. */
extern int fgetc __P ((FILE *__stream));
extern int getc __P ((FILE *__stream));
/* Read a character from stdin. */
extern int getchar __P ((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 __OPTIMIZE__
__STDIO_INLINE int
getchar (void)
{
return _IO_getc (stdin);
}
#endif /* Optimizing. */
#if defined __USE_POSIX || defined __USE_MISC
/* These are defined in POSIX.1:1996. */
extern int getc_unlocked __P ((FILE *__stream));
extern int getchar_unlocked __P ((void));
#ifdef __OPTIMIZE__
__STDIO_INLINE int
getc_unlocked (FILE *__fp)
{
return _IO_getc_unlocked (__fp);
}
__STDIO_INLINE int
getchar_unlocked (void)
{
return _IO_getc_unlocked (stdin);
}
#endif /* Optimizing. */
#endif /* Use POSIX or MISC. */
/* Write a character to STREAM. */
extern int fputc __P ((int __c, FILE *__stream));
extern int putc __P ((int __c, FILE *__stream));
/* Write a character to stdout. */
extern int putchar __P ((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 __OPTIMIZE__
__STDIO_INLINE int
putchar (int __c)
{
return _IO_putc (__c, stdout);
}
#endif
#ifdef __USE_MISC
/* Faster version when locking is not necessary. */
extern int fputc_unlocked __P ((int __c, FILE *__stream));
#ifdef __OPTIMIZE__
__STDIO_INLINE int
fputc_unlocked (int __c, FILE *__stream)
{
return _IO_putc_unlocked (__c, __stream);
}
#endif /* Optimizing. */
#endif /* Use MISC. */
#if defined __USE_POSIX || defined __USE_MISC
/* These are defined in POSIX.1:1996. */
extern int putc_unlocked __P ((int __c, FILE *__stream));
extern int putchar_unlocked __P ((int __c));
#ifdef __OPTIMIZE__
__STDIO_INLINE int
putc_unlocked (int __c, FILE *__stream)
{
return _IO_putc_unlocked (__c, __stream);
}
__STDIO_INLINE int
putchar_unlocked (int __c)
{
return _IO_putc_unlocked (__c, stdout);
}
#endif /* Optimizing. */
#endif /* Use POSIX or MISc. */
#if defined __USE_SVID || defined __USE_MISC
/* Get a word (int) from STREAM. */
extern int getw __P ((FILE *__stream));
/* Write a word (int) to STREAM. */
extern int putw __P ((int __w, FILE *__stream));
#endif
/* Get a newline-terminated string of finite length from STREAM. */
extern char *fgets __P ((char *__restrict __s, int __n,
FILE *__restrict __stream));
/* Get a newline-terminated string from stdin, removing the newline.
DO NOT USE THIS FUNCTION!! There is no limit on how much it will read. */
extern char *gets __P ((char *__s));
#ifdef __USE_GNU
/* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
(and null-terminate it). *LINEPTR is a pointer returned from malloc (or
NULL), pointing to *N characters of space. It is realloc'd as
necessary. Returns the number of characters read (not including the
null terminator), or -1 on error or EOF. */
_IO_ssize_t __getdelim __P ((char **__lineptr, size_t *__n,
int __delimiter, FILE *__stream));
_IO_ssize_t getdelim __P ((char **__lineptr, size_t *__n,
int __delimiter, FILE *__stream));
/* Like `getdelim', but reads up to a newline. */
_IO_ssize_t __getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
_IO_ssize_t getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
#ifdef __OPTIMIZE__
__STDIO_INLINE _IO_ssize_t
getline (char **__lineptr, size_t *__n, FILE *__stream)
{
return __getdelim (__lineptr, __n, '\n', __stream);
}
#endif /* Optimizing. */
#endif
/* Write a string to STREAM. */
extern int fputs __P ((__const char *__restrict __s,
FILE *__restrict __stream));
/* Write a string, followed by a newline, to stdout. */
extern int puts __P ((__const char *__s));
/* Push a character back onto the input buffer of STREAM. */
extern int ungetc __P ((int __c, FILE *__stream));
/* Read chunks of generic data from STREAM. */
extern size_t fread __P ((void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream));
/* Write chunks of generic data to STREAM. */
extern size_t fwrite __P ((__const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __s));
#ifdef __USE_MISC
/* Faster versions when locking is not necessary. */
extern size_t fread_unlocked __P ((void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream));
extern size_t fwrite_unlocked __P ((__const void *__restrict __ptr,
size_t __size, size_t __n,
FILE *__restrict __stream));
#endif
/* Seek to a certain position on STREAM. */
extern int fseek __P ((FILE *__stream, long int __off, int __whence));
/* Return the current position of STREAM. */
extern long int ftell __P ((FILE *__stream));
/* Rewind to the beginning of STREAM. */
extern void rewind __P ((FILE *__stream));
/* Get STREAM's position. */
extern int fgetpos __P ((FILE *__restrict __stream,
fpos_t *__restrict __pos));
/* Set STREAM's position. */
extern int fsetpos __P ((FILE *__stream, __const fpos_t *__pos));
/* Clear the error and EOF indicators for STREAM. */
extern void clearerr __P ((FILE *__stream));
/* Return the EOF indicator for STREAM. */
extern int feof __P ((FILE *__stream));
/* Return the error indicator for STREAM. */
extern int ferror __P ((FILE *__stream));
#ifdef __USE_MISC
/* Faster versions when locking is not required. */
extern void clearerr_unlocked __P ((FILE *__stream));
extern int feof_unlocked __P ((FILE *__stream));
extern int ferror_unlocked __P ((FILE *__stream));
#ifdef __OPTIMIZE__
__STDIO_INLINE int
feof_unlocked (FILE *__stream)
{
return _IO_feof_unlocked (__stream);
}
__STDIO_INLINE int
ferror_unlocked (FILE *__stream)
{
return _IO_ferror_unlocked (__stream);
}
#endif /* Optimizing. */
#endif
/* Print a message describing the meaning of the value of errno. */
extern void perror __P ((__const char *__s));
/* These variables normally should not be used directly. The `strftime'
function provides all the needed functionality. */
#ifdef __USE_BSD
extern int sys_nerr;
extern __const char *__const sys_errlist[];
#endif
#ifdef __USE_GNU
extern int _sys_nerr;
extern __const char *__const _sys_errlist[];
#endif
#ifdef __USE_POSIX
/* Return the system file descriptor for STREAM. */
extern int fileno __P ((FILE *__stream));
#endif /* Use POSIX. */
#ifdef __USE_MISC
/* Faster version when locking is not required. */
extern int fileno_unlocked __P ((FILE *__stream));
#endif
#if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD || \
defined __USE_MISC)
/* Create a new stream connected to a pipe running the given command. */
extern FILE *popen __P ((__const char *__command, __const char *__modes));
/* Close a stream opened by popen and return the status of its child. */
extern int pclose __P ((FILE *__stream));
#endif
#ifdef __USE_POSIX
/* Return the name of the controlling terminal. */
extern char *ctermid __P ((char *__s));
#endif /* Use POSIX. */
#ifdef __USE_XOPEN
/* Return the name of the current user. */
extern char *cuserid __P ((char *__s));
#endif /* Use X/Open. */
#ifdef __USE_GNU
struct obstack; /* See <obstack.h>. */
/* Write formatted output to an obstack. */
extern int obstack_printf __P ((struct obstack *__obstack,
__const char *__format, ...));
extern int obstack_vprintf __P ((struct obstack *__obstack,
__const char *__format,
_G_va_list __args));
#endif /* Use GNU. */
#if defined __USE_POSIX || defined __USE_MISC
/* These are defined in POSIX.1:1996. */
/* Acquire ownership of STREAM. */
extern void flockfile __P ((FILE *__stream));
/* Try to acquire ownership of STREAM but do not block if it is not
possible. */
extern int ftrylockfile __P ((FILE *__stream));
/* Relinquish the ownership granted for STREAM. */
extern void funlockfile __P ((FILE *__stream));
#endif /* POSIX || misc */
__END_DECLS
/* Define helper macro. */
#undef __STDIO_INLINE
#endif /* <stdio.h> included. */
#endif /* !_STDIO_H */