mirror of
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7df789e059
1999-06-23 Zack Weinberg <zack@rabi.columbia.edu>
* libio/stdio.h: Define stdin, stdout, stderr as macros.
* math/complex.h: Don't define
CX_LIMITED_RANGE_{ON,OFF,DEFAULT}. These are *pragmas* not
macros.
* wcsmbs/wchar.h: Fix comment.
* grp/grp.h: Use __foo_t_defined convention to typedef things
only once.
* io/sys/stat.h: Likewise.
* libio/stdio.h: Likewise.
* posix/unistd.h: Likewise.
* posix/sys/types.h: Likewise.
* posix/sys/wait.h: Likewise.
* pwd/pwd.h: Likewise.
* signal/signal.h: Likewise.
* sysdeps/generic/stdint.h: Likewise.
* sysdeps/gnu/utmpx.h: Likewise.
* termios/termios.h: Likewise.
642 lines
20 KiB
C
642 lines
20 KiB
C
/* Define ISO C stdio on top of C++ iostreams.
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Copyright (C) 1991, 94, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*
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* ISO C Standard: 4.9 INPUT/OUTPUT <stdio.h>
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*/
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#ifndef _STDIO_H
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#ifndef __need_FILE
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# define _STDIO_H 1
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# include <features.h>
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__BEGIN_DECLS
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# define __need_size_t
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# define __need_NULL
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# include <stddef.h>
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# ifndef __USE_XOPEN
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# define __need___va_list
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# endif
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# include <stdarg.h>
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# include <bits/types.h>
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#endif /* Don't need FILE. */
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#undef __need_FILE
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#ifndef __FILE_defined
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/* The opaque type of streams. */
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typedef struct _IO_FILE FILE;
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# define __FILE_defined 1
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#endif /* FILE not defined. */
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#ifdef _STDIO_H
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#define _STDIO_USES_IOSTREAM
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#include <libio.h>
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/* The type of the second argument to `fgetpos' and `fsetpos'. */
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#ifndef __USE_FILE_OFFSET64
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typedef _G_fpos_t fpos_t;
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#else
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typedef _G_fpos64_t fpos_t;
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#endif
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#ifdef __USE_LARGEFILE64
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typedef _G_fpos64_t fpos64_t;
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#endif
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/* The possibilities for the third argument to `setvbuf'. */
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#define _IOFBF 0 /* Fully buffered. */
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#define _IOLBF 1 /* Line buffered. */
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#define _IONBF 2 /* No buffering. */
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/* Default buffer size. */
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#ifndef BUFSIZ
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# define BUFSIZ _IO_BUFSIZ
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#endif
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/* End of file character.
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Some things throughout the library rely on this being -1. */
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#ifndef EOF
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# define EOF (-1)
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#endif
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/* The possibilities for the third argument to `fseek'.
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These values should not be changed. */
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#define SEEK_SET 0 /* Seek from beginning of file. */
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#define SEEK_CUR 1 /* Seek from current position. */
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#define SEEK_END 2 /* Seek from end of file. */
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#if defined __USE_SVID || defined __USE_XOPEN
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/* Default path prefix for `tempnam' and `tmpnam'. */
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# define P_tmpdir "/tmp"
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#endif
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/* Get the values:
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L_tmpnam How long an array of chars must be to be passed to `tmpnam'.
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TMP_MAX The minimum number of unique filenames generated by tmpnam
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(and tempnam when it uses tmpnam's name space),
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or tempnam (the two are separate).
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L_ctermid How long an array to pass to `ctermid'.
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L_cuserid How long an array to pass to `cuserid'.
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FOPEN_MAX Minimum number of files that can be open at once.
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FILENAME_MAX Maximum length of a filename. */
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#include <bits/stdio_lim.h>
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/* Standard streams. */
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extern FILE *stdin; /* Standard input stream. */
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extern FILE *stdout; /* Standard output stream. */
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extern FILE *stderr; /* Standard error output stream. */
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/* C89/C9x say they're macros. Make them happy. */
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#define stdin stdin
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#define stdout stdout
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#define stderr stderr
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/* Remove file FILENAME. */
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extern int remove __P ((__const char *__filename));
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/* Rename file OLD to NEW. */
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extern int rename __P ((__const char *__old, __const char *__new));
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/* Create a temporary file and open it read/write. */
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#ifndef __USE_FILE_OFFSET64
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extern FILE *tmpfile __P ((void));
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#else
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# ifdef __REDIRECT
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extern FILE *__REDIRECT (tmpfile, __P ((void)), tmpfile64);
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# else
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# define tmpfile tmpfile64
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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extern FILE *tmpfile64 __P ((void));
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#endif
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/* Generate a temporary filename. */
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extern char *tmpnam __P ((char *__s));
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#ifdef __USE_MISC
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/* This is the reentrant variant of `tmpnam'. The only difference is
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that it does not allow S to be NULL. */
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extern char *tmpnam_r __P ((char *__s));
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#endif
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#if defined __USE_SVID || defined __USE_XOPEN
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/* Generate a unique temporary filename using up to five characters of PFX
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if it is not NULL. The directory to put this file in is searched for
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as follows: First the environment variable "TMPDIR" is checked.
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If it contains the name of a writable directory, that directory is used.
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If not and if DIR is not NULL, that value is checked. If that fails,
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P_tmpdir is tried and finally "/tmp". The storage for the filename
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is allocated by `malloc'. */
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extern char *tempnam __P ((__const char *__dir, __const char *__pfx));
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#endif
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/* Close STREAM. */
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extern int fclose __P ((FILE *__stream));
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/* Flush STREAM, or all streams if STREAM is NULL. */
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extern int fflush __P ((FILE *__stream));
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#ifdef __USE_MISC
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/* Faster versions when locking is not required. */
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extern int fflush_unlocked __P ((FILE *__stream));
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#endif
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#ifdef __USE_GNU
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/* Close all streams. */
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extern int fcloseall __P ((void));
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#endif
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#ifndef __USE_FILE_OFFSET64
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/* Open a file and create a new stream for it. */
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extern FILE *fopen __P ((__const char *__restrict __filename,
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__const char *__restrict __modes));
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/* Open a file, replacing an existing stream with it. */
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extern FILE *freopen __P ((__const char *__restrict __filename,
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__const char *__restrict __modes,
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FILE *__restrict __stream));
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#else
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# ifdef __REDIRECT
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extern FILE *__REDIRECT (fopen, __P ((__const char *__restrict __filename,
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__const char *__restrict __modes)),
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fopen64);
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extern FILE *__REDIRECT (freopen, __P ((__const char *__restrict __filename,
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__const char *__restrict __modes,
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FILE *__restrict __stream)),
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freopen64);
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# else
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# define fopen fopen64
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# define freopen freopen64
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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extern FILE *fopen64 __P ((__const char *__restrict __filename,
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__const char *__restrict __modes));
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extern FILE *freopen64 __P ((__const char *__restrict __filename,
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__const char *__restrict __modes,
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FILE *__restrict __stream));
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#endif
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#ifdef __USE_POSIX
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/* Create a new stream that refers to an existing system file descriptor. */
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extern FILE *fdopen __P ((int __fd, __const char *__modes));
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#endif
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#ifdef __USE_GNU
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/* Create a new stream that refers to the given magic cookie,
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and uses the given functions for input and output. */
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extern FILE *fopencookie __P ((void *__restrict __magic_cookie,
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__const char *__restrict __modes,
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_IO_cookie_io_functions_t __io_funcs));
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/* Open a stream that writes into a malloc'd buffer that is expanded as
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necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
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and the number of characters written on fflush or fclose. */
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extern FILE *open_memstream __P ((char **__restrict __bufloc,
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size_t *__restrict __sizeloc));
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#endif
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/* If BUF is NULL, make STREAM unbuffered.
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Else make it use buffer BUF, of size BUFSIZ. */
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extern void setbuf __P ((FILE *__restrict __stream, char *__restrict __buf));
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/* Make STREAM use buffering mode MODE.
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If BUF is not NULL, use N bytes of it for buffering;
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else allocate an internal buffer N bytes long. */
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extern int setvbuf __P ((FILE *__restrict __stream, char *__restrict __buf,
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int __modes, size_t __n));
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#ifdef __USE_BSD
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/* If BUF is NULL, make STREAM unbuffered.
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Else make it use SIZE bytes of BUF for buffering. */
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extern void setbuffer __P ((FILE *__restrict __stream, char *__restrict __buf,
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size_t __size));
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/* Make STREAM line-buffered. */
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extern void setlinebuf __P ((FILE *__stream));
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#endif
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/* Write formatted output to STREAM. */
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extern int fprintf __P ((FILE *__restrict __stream,
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__const char *__restrict __format, ...));
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/* Write formatted output to stdout. */
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extern int printf __P ((__const char *__restrict __format, ...));
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/* Write formatted output to S. */
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extern int sprintf __P ((char *__restrict __s,
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__const char *__restrict __format, ...));
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/* Write formatted output to S from argument list ARG. */
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extern int vfprintf __P ((FILE *__restrict __s,
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__const char *__restrict __format,
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_G_va_list __arg));
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/* Write formatted output to stdout from argument list ARG. */
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extern int vprintf __P ((__const char *__restrict __format,
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_G_va_list __arg));
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/* Write formatted output to S from argument list ARG. */
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extern int vsprintf __P ((char *__restrict __s,
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__const char *__restrict __format,
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_G_va_list __arg));
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#if defined __USE_BSD || defined __USE_ISOC9X || defined __USE_UNIX98
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/* Maximum chars of output to write in MAXLEN. */
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extern int snprintf __P ((char *__restrict __s, size_t __maxlen,
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__const char *__restrict __format, ...))
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__attribute__ ((__format__ (__printf__, 3, 4)));
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extern int __vsnprintf __P ((char *__restrict __s, size_t __maxlen,
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__const char *__restrict __format,
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_G_va_list __arg))
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__attribute__ ((__format__ (__printf__, 3, 0)));
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extern int vsnprintf __P ((char *__restrict __s, size_t __maxlen,
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__const char *__restrict __format,
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_G_va_list __arg))
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__attribute__ ((__format__ (__printf__, 3, 0)));
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#endif
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#ifdef __USE_GNU
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/* Write formatted output to a string dynamically allocated with `malloc'.
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Store the address of the string in *PTR. */
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extern int vasprintf __P ((char **__restrict __ptr,
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__const char *__restrict __f, _G_va_list __arg))
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__attribute__ ((__format__ (__printf__, 2, 0)));
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extern int __asprintf __P ((char **__restrict __ptr,
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__const char *__restrict __fmt, ...))
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__attribute__ ((__format__ (__printf__, 2, 3)));
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extern int asprintf __P ((char **__restrict __ptr,
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__const char *__restrict __fmt, ...))
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__attribute__ ((__format__ (__printf__, 2, 3)));
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/* Write formatted output to a file descriptor. */
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extern int vdprintf __P ((int __fd, __const char *__restrict __fmt,
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_G_va_list __arg))
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__attribute__ ((__format__ (__printf__, 2, 0)));
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extern int dprintf __P ((int __fd, __const char *__restrict __fmt, ...))
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__attribute__ ((__format__ (__printf__, 2, 3)));
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#endif
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/* Read formatted input from STREAM. */
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extern int fscanf __P ((FILE *__restrict __stream,
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__const char *__restrict __format, ...));
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/* Read formatted input from stdin. */
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extern int scanf __P ((__const char *__restrict __format, ...));
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/* Read formatted input from S. */
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extern int sscanf __P ((__const char *__restrict __s,
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__const char *__restrict __format, ...));
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#ifdef __USE_ISOC9X
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/* Read formatted input from S into argument list ARG. */
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extern int vfscanf __P ((FILE *__restrict __s,
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__const char *__restrict __format,
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_G_va_list __arg))
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__attribute__ ((__format__ (__scanf__, 2, 0)));
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/* Read formatted input from stdin into argument list ARG. */
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extern int vscanf __P ((__const char *__restrict __format, _G_va_list __arg))
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__attribute__ ((__format__ (__scanf__, 1, 0)));
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/* Read formatted input from S into argument list ARG. */
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extern int vsscanf __P ((__const char *__restrict __s,
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__const char *__restrict __format,
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_G_va_list __arg))
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__attribute__ ((__format__ (__scanf__, 2, 0)));
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#endif /* Use ISO C9x. */
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/* Read a character from STREAM. */
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extern int fgetc __P ((FILE *__stream));
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extern int getc __P ((FILE *__stream));
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/* Read a character from stdin. */
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extern int getchar __P ((void));
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/* The C standard explicitly says this is a macro, so we always do the
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optimization for it. */
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#define getc(_fp) _IO_getc (_fp)
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#if defined __USE_POSIX || defined __USE_MISC
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/* These are defined in POSIX.1:1996. */
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extern int getc_unlocked __P ((FILE *__stream));
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extern int getchar_unlocked __P ((void));
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#endif /* Use POSIX or MISC. */
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#ifdef __USE_MISC
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/* Faster version when locking is not necessary. */
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extern int fgetc_unlocked __P ((FILE *__stream));
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#endif /* Use MISC. */
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/* Write a character to STREAM. */
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extern int fputc __P ((int __c, FILE *__stream));
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extern int putc __P ((int __c, FILE *__stream));
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/* Write a character to stdout. */
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extern int putchar __P ((int __c));
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/* The C standard explicitly says this can be a macro,
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so we always do the optimization for it. */
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#define putc(_ch, _fp) _IO_putc (_ch, _fp)
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#ifdef __USE_MISC
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/* Faster version when locking is not necessary. */
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extern int fputc_unlocked __P ((int __c, FILE *__stream));
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#endif /* Use MISC. */
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#if defined __USE_POSIX || defined __USE_MISC
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/* These are defined in POSIX.1:1996. */
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extern int putc_unlocked __P ((int __c, FILE *__stream));
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extern int putchar_unlocked __P ((int __c));
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#endif /* Use POSIX or MISC. */
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#if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN
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/* Get a word (int) from STREAM. */
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extern int getw __P ((FILE *__stream));
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/* Write a word (int) to STREAM. */
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extern int putw __P ((int __w, FILE *__stream));
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#endif
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/* Get a newline-terminated string of finite length from STREAM. */
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extern char *fgets __P ((char *__restrict __s, int __n,
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FILE *__restrict __stream));
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#ifdef __USE_GNU
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/* This function does the same as `fgets' but does not lock the stream. */
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extern char *fgets_unlocked __P ((char *__restrict __s, int __n,
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FILE *__restrict __stream));
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#endif
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/* Get a newline-terminated string from stdin, removing the newline.
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DO NOT USE THIS FUNCTION!! There is no limit on how much it will read. */
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extern char *gets __P ((char *__s));
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#ifdef __USE_GNU
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/* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
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(and null-terminate it). *LINEPTR is a pointer returned from malloc (or
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NULL), pointing to *N characters of space. It is realloc'd as
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necessary. Returns the number of characters read (not including the
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null terminator), or -1 on error or EOF. */
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extern _IO_ssize_t __getdelim __P ((char **__restrict __lineptr,
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size_t *__restrict __n, int __delimiter,
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FILE *__restrict __stream));
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extern _IO_ssize_t getdelim __P ((char **__restrict __lineptr,
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size_t *__restrict __n, int __delimiter,
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FILE *__restrict __stream));
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/* Like `getdelim', but reads up to a newline. */
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extern _IO_ssize_t getline __P ((char **__restrict __lineptr,
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size_t *__restrict __n,
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FILE *__restrict __stream));
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#endif
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/* Write a string to STREAM. */
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extern int fputs __P ((__const char *__restrict __s,
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FILE *__restrict __stream));
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#ifdef __USE_GNU
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/* This function does the same as `fputs' but does not lock the stream. */
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extern int fputs_unlocked __P ((__const char *__restrict __s,
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FILE *__restrict __stream));
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#endif
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/* Write a string, followed by a newline, to stdout. */
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extern int puts __P ((__const char *__s));
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/* Push a character back onto the input buffer of STREAM. */
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extern int ungetc __P ((int __c, FILE *__stream));
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/* Read chunks of generic data from STREAM. */
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extern size_t fread __P ((void *__restrict __ptr, size_t __size,
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size_t __n, FILE *__restrict __stream));
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/* Write chunks of generic data to STREAM. */
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extern size_t fwrite __P ((__const void *__restrict __ptr, size_t __size,
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size_t __n, FILE *__restrict __s));
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#ifdef __USE_MISC
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/* Faster versions when locking is not necessary. */
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extern size_t fread_unlocked __P ((void *__restrict __ptr, size_t __size,
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size_t __n, FILE *__restrict __stream));
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extern size_t fwrite_unlocked __P ((__const void *__restrict __ptr,
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size_t __size, size_t __n,
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FILE *__restrict __stream));
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#endif
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/* Seek to a certain position on STREAM. */
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extern int fseek __P ((FILE *__stream, long int __off, int __whence));
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/* Return the current position of STREAM. */
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extern long int ftell __P ((FILE *__stream));
|
|
/* Rewind to the beginning of STREAM. */
|
|
extern void rewind __P ((FILE *__stream));
|
|
|
|
/* The Single Unix Specification, Version 2, specifies an alternative,
|
|
more adequate interface for the two functions above which deal with
|
|
file offset. `long int' is not the right type. These definitions
|
|
are originally defined in the Large File Support API. */
|
|
|
|
/* Types needed in these functions. */
|
|
#ifndef __off_t_defined
|
|
# ifndef __USE_FILE_OFFSET64
|
|
typedef __off_t off_t;
|
|
# else
|
|
typedef __off64_t off_t;
|
|
# endif
|
|
# define __off_t_defined
|
|
#endif
|
|
|
|
#if defined __USE_LARGEFILE64 && !defined __off64_t_defined
|
|
typedef __off64_t off64_t;
|
|
# define __off64_t_defined
|
|
#endif
|
|
|
|
|
|
#ifndef __USE_FILE_OFFSET64
|
|
# ifdef __USE_UNIX98
|
|
/* Seek to a certain position on STREAM. */
|
|
extern int fseeko __P ((FILE *__stream, __off_t __off, int __whence));
|
|
/* Return the current position of STREAM. */
|
|
extern __off_t ftello __P ((FILE *__stream));
|
|
# endif
|
|
|
|
/* 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));
|
|
#else
|
|
# ifdef __REDIRECT
|
|
# ifdef __USE_UNIX98
|
|
extern int __REDIRECT (fseeko,
|
|
__P ((FILE *__stream, __off64_t __off, int __whence)),
|
|
fseeko64);
|
|
extern __off64_t __REDIRECT (ftello, __P ((FILE *__stream)), ftello64);
|
|
# endif
|
|
extern int __REDIRECT (fgetpos, __P ((FILE *__restrict __stream,
|
|
fpos_t *__restrict __pos)), fgetpos64);
|
|
extern int __REDIRECT (fsetpos, __P ((FILE *__stream, __const fpos_t *__pos)),
|
|
fsetpos64);
|
|
# else
|
|
# ifdef __USE_UNIX98
|
|
# define fseeko fseeko64
|
|
# define ftello ftello64
|
|
# endif
|
|
# define fgetpos fgetpos64
|
|
# define fsetpos fsetpos64
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
# ifdef __USE_UNIX98
|
|
extern int fseeko64 __P ((FILE *__stream, __off64_t __off, int __whence));
|
|
extern __off64_t ftello64 __P ((FILE *__stream));
|
|
# endif
|
|
extern int fgetpos64 __P ((FILE *__restrict __stream,
|
|
fpos64_t *__restrict __pos));
|
|
extern int fsetpos64 __P ((FILE *__stream, __const fpos64_t *__pos));
|
|
#endif
|
|
|
|
/* 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));
|
|
#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 `strerror'
|
|
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 *__restrict __obstack,
|
|
__const char *__restrict __format, ...));
|
|
extern int obstack_vprintf __P ((struct obstack *__restrict __obstack,
|
|
__const char *__restrict __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 */
|
|
|
|
#if defined __USE_XOPEN && !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
|
|
|
|
/* If we are compiling with optimizing read this file. It contains
|
|
several optizing inline functions and macros. */
|
|
#ifdef __USE_EXTERN_INLINES
|
|
# include <bits/stdio.h>
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* <stdio.h> included. */
|
|
|
|
#endif /* !_STDIO_H */
|