mirror of
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initial import
This commit is contained in:
Roland McGrath
681
stdio/stdio.h
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681
stdio/stdio.h
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@ -0,0 +1,681 @@
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/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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|
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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.
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||||
|
||||
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., 675 Mass Ave,
|
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Cambridge, MA 02139, USA. */
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/*
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* ANSI Standard: 4.9 INPUT/OUTPUT <stdio.h>
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*/
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#ifndef _STDIO_H
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#if !defined(__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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|
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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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|
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#define __need___va_list
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#include <stdarg.h>
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#ifndef __GNUC_VA_LIST
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#define __gnuc_va_list __ptr_t
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#endif
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#include <gnu/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 __stdio_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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/* The type of the second argument to `fgetpos' and `fsetpos'. */
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typedef __off_t fpos_t;
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/* The mode of I/O, as given in the MODE argument to fopen, etc. */
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typedef struct
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{
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unsigned int __read:1; /* Open for reading. */
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unsigned int __write:1; /* Open for writing. */
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unsigned int __append:1; /* Open for appending. */
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unsigned int __binary:1; /* Opened binary. */
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unsigned int __create:1; /* Create the file. */
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unsigned int __exclusive:1; /* Error if it already exists. */
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unsigned int __truncate:1; /* Truncate the file on opening. */
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} __io_mode;
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/* Functions to do I/O and file management for a stream. */
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/* Read NBYTES bytes from COOKIE into a buffer pointed to by BUF.
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Return number of bytes read. */
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typedef __ssize_t __io_read_fn __P ((__ptr_t __cookie, char *__buf,
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size_t __nbytes));
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/* Write N bytes pointed to by BUF to COOKIE. Write all N bytes
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unless there is an error. Return number of bytes written, or -1 if
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there is an error without writing anything. If the file has been
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opened for append (__mode.__append set), then set the file pointer
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to the end of the file and then do the write; if not, just write at
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the current file pointer. */
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typedef __ssize_t __io_write_fn __P ((__ptr_t __cookie, __const char *__buf,
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size_t __n));
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/* Move COOKIE's file position to *POS bytes from the
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beginning of the file (if W is SEEK_SET),
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the current position (if W is SEEK_CUR),
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or the end of the file (if W is SEEK_END).
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Set *POS to the new file position.
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Returns zero if successful, nonzero if not. */
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typedef int __io_seek_fn __P ((__ptr_t __cookie, fpos_t *__pos, int __w));
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/* Close COOKIE. */
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typedef int __io_close_fn __P ((__ptr_t __cookie));
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/* Return the file descriptor associated with COOKIE,
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or -1 on error. There need not be any associated file descriptor. */
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typedef int __io_fileno_fn __P ((__ptr_t __cookie));
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#ifdef __USE_GNU
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/* User-visible names for the above. */
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typedef __io_read_fn cookie_read_function_t;
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typedef __io_write_fn cookie_write_function_t;
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typedef __io_seek_fn cookie_seek_function_t;
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typedef __io_close_fn cookie_close_function_t;
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typedef __io_fileno_fn cookie_fileno_function_t;
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#endif
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/* Low level interface, independent of FILE representation. */
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#if defined (__USE_GNU) && !defined (_LIBC)
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/* Define the user-visible type, with user-friendly member names. */
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typedef struct
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{
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__io_read_fn *read; /* Read bytes. */
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__io_write_fn *write; /* Write bytes. */
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__io_seek_fn *seek; /* Seek/tell file position. */
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__io_close_fn *close; /* Close file. */
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__io_fileno_fn *fileno; /* Return file descriptor. */
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} cookie_io_functions_t;
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/* This name is still used in the prototypes in this file. */
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typedef cookie_io_functions_t __io_functions;
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#else
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/* Stick to ANSI-safe names. */
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typedef struct
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{
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__io_read_fn *__read; /* Read bytes. */
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__io_write_fn *__write; /* Write bytes. */
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__io_seek_fn *__seek; /* Seek/tell file position. */
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__io_close_fn *__close; /* Close file. */
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__io_fileno_fn *__fileno; /* Return file descriptor. */
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} __io_functions;
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#endif
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/* Higher level interface, dependent on FILE representation. */
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typedef struct
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{
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/* Make room in the input buffer. */
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int (*__input) __P ((FILE *__stream));
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/* Make room in the output buffer. */
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void (*__output) __P ((FILE *__stream, int __c));
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} __room_functions;
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extern __const __io_functions __default_io_functions;
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extern __const __room_functions __default_room_functions;
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/* Default close function. */
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extern __io_close_fn __stdio_close;
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/* Open FILE with mode M, store cookie in *COOKIEPTR. */
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extern int __stdio_open __P ((__const char *__file, __io_mode __m,
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__ptr_t *__cookieptr));
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/* Put out an error message for when stdio needs to die. */
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extern void __stdio_errmsg __P ((__const char *__msg, size_t __len));
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/* Generate a unique file name (and possibly open it with mode "w+b"). */
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extern char *__stdio_gen_tempname __P ((__const char *__dir,
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__const char *__pfx,
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int __dir_search,
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size_t *__lenptr,
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FILE **__streamptr));
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||||
|
||||
|
||||
/* Print out MESSAGE on the error output and abort. */
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||||
extern void __libc_fatal __P ((__const char *__message))
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__attribute__ ((__noreturn__));
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/* The FILE structure. */
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struct __stdio_file
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{
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/* Magic number for validation. Must be negative in open streams
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for the glue to Unix stdio getc/putc to work.
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NOTE: stdio/glue.c has special knowledge of these first four members. */
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int __magic;
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#define _IOMAGIC 0xfedabeeb /* Magic number to fill `__magic'. */
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#define _GLUEMAGIC 0xfeedbabe /* Magic for glued Unix streams. */
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||||
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char *__bufp; /* Pointer into the buffer. */
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char *__get_limit; /* Reading limit. */
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char *__put_limit; /* Writing limit. */
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char *__buffer; /* Base of buffer. */
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size_t __bufsize; /* Size of the buffer. */
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__ptr_t __cookie; /* Magic cookie. */
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__io_mode __mode; /* File access mode. */
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__io_functions __io_funcs; /* I/O functions. */
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__room_functions __room_funcs;/* I/O buffer room functions. */
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fpos_t __offset; /* Current file position. */
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fpos_t __target; /* Target file position. */
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FILE *__next; /* Next FILE in the linked list. */
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||||
char *__pushback_bufp; /* Old bufp if char pushed back. */
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unsigned char __pushback; /* Pushed-back character. */
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||||
unsigned int __pushed_back:1; /* A char has been pushed back. */
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||||
unsigned int __eof:1; /* End of file encountered. */
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unsigned int __error:1; /* Error encountered. */
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||||
unsigned int __userbuf:1; /* Buffer from user (should not be freed). */
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||||
unsigned int __linebuf:1; /* Flush on newline. */
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||||
unsigned int __linebuf_active:1; /* put_limit is not really in use. */
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unsigned int __seen:1; /* This stream has been seen. */
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unsigned int __ispipe:1; /* Nonzero if opened by popen. */
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||||
};
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/* All macros used internally by other macros here and by stdio functions begin
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with `__'. All of these may evaluate their arguments more than once. */
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||||
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||||
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/* Nonzero if STREAM is a valid stream.
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STREAM must be a modifiable lvalue (wow, I got to use that term).
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See stdio/glue.c for what the confusing bit is about. */
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#define __validfp(stream) \
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(stream != NULL && \
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((stream->__magic == _GLUEMAGIC && \
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(stream = *(((struct { int __magic; FILE **__p; } *) stream)->__p))), \
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(stream->__magic == _IOMAGIC)))
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/* Clear the error and EOF indicators of STREAM. */
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#define __clearerr(stream) ((stream)->__error = (stream)->__eof = 0)
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/* Nuke STREAM, making it unusable but available for reuse. */
|
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extern void __invalidate __P ((FILE *__stream));
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/* Make sure STREAM->__offset and STREAM->__target are initialized.
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Returns 0 if successful, or EOF on
|
||||
error (but doesn't set STREAM->__error). */
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extern int __stdio_check_offset __P ((FILE *__stream));
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||||
|
||||
|
||||
/* The possibilities for the third argument to `setvbuf'. */
|
||||
#define _IOFBF 0x1 /* Full buffering. */
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#define _IOLBF 0x2 /* Line buffering. */
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||||
#define _IONBF 0x4 /* No buffering. */
|
||||
|
||||
|
||||
/* Default buffer size. */
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#define BUFSIZ 1024
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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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||||
#define EOF (-1)
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|
||||
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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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||||
|
||||
|
||||
#ifdef __USE_SVID
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||||
/* Default path prefix for `tempnam' and `tmpnam'. */
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||||
#define P_tmpdir "/usr/tmp"
|
||||
#endif
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||||
|
||||
|
||||
/* Get the values:
|
||||
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'.
|
||||
L_cuserid How long an array to pass to `cuserid'.
|
||||
FOPEN_MAX Mininum number of files that can be open at once.
|
||||
FILENAME_MAX Maximum length of a filename. */
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||||
#include <stdio_lim.h>
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||||
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||||
|
||||
/* All the known streams are in a linked list
|
||||
linked by the `next' field of the FILE structure. */
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||||
extern FILE *__stdio_head; /* Head of the list. */
|
||||
|
||||
/* Standard streams. */
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||||
extern FILE *stdin, *stdout, *stderr;
|
||||
#ifdef __STRICT_ANSI__
|
||||
/* ANSI says these are macros; satisfy pedants. */
|
||||
#define stdin stdin
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||||
#define stdout stdout
|
||||
#define stderr stderr
|
||||
#endif
|
||||
|
||||
|
||||
/* 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_SVID
|
||||
/* 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
|
||||
|
||||
|
||||
/* This performs actual output when necessary, flushing
|
||||
STREAM's buffer and optionally writing another character. */
|
||||
extern int __flshfp __P ((FILE *__stream, int __c));
|
||||
|
||||
|
||||
/* Close STREAM, or all streams if STREAM is NULL. */
|
||||
extern int fclose __P ((FILE *__stream));
|
||||
/* Flush STREAM, or all streams if STREAM is NULL. */
|
||||
extern int fflush __P ((FILE *__stream));
|
||||
|
||||
|
||||
/* 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 *__filename,
|
||||
__const char *__modes, FILE *__stream));
|
||||
|
||||
/* Return a new, zeroed, stream.
|
||||
You must set its cookie and io_mode.
|
||||
The first operation will give it a buffer unless you do.
|
||||
It will also give it the default functions unless you set the `seen' flag.
|
||||
The offset is set to -1, meaning it will be determined by doing a
|
||||
stationary seek. You can set it to avoid the initial tell call.
|
||||
The target is set to -1, meaning it will be set to the offset
|
||||
before the target is needed.
|
||||
Returns NULL if a stream can't be created. */
|
||||
extern FILE *__newstream __P ((void));
|
||||
|
||||
#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 ((__ptr_t __magic_cookie, __const char *__modes,
|
||||
__io_functions __io_funcs));
|
||||
|
||||
/* Create a new stream that refers to a memory buffer. */
|
||||
extern FILE *fmemopen __P ((__ptr_t __s, size_t __len, __const char *__modes));
|
||||
|
||||
/* 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 *__stream, char *__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 *__stream, char *__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 *__stream, __const char *__format, ...));
|
||||
/* Write formatted output to stdout. */
|
||||
extern int printf __P ((__const char *__format, ...));
|
||||
/* Write formatted output to S. */
|
||||
extern int sprintf __P ((char *__s, __const char *__format, ...));
|
||||
|
||||
/* Write formatted output to S from argument list ARG. */
|
||||
extern int vfprintf __P ((FILE *__s, __const char *__format,
|
||||
__gnuc_va_list __arg));
|
||||
/* Write formatted output to stdout from argument list ARG. */
|
||||
extern int vprintf __P ((__const char *__format, __gnuc_va_list __arg));
|
||||
/* Write formatted output to S from argument list ARG. */
|
||||
extern int vsprintf __P ((char *__s, __const char *__format,
|
||||
__gnuc_va_list __arg));
|
||||
|
||||
#ifdef __OPTIMIZE__
|
||||
extern __inline int
|
||||
vprintf (const char *__fmt, __gnuc_va_list __arg)
|
||||
{
|
||||
return vfprintf (stdout, __fmt, __arg);
|
||||
}
|
||||
#endif /* Optimizing. */
|
||||
|
||||
#ifdef __USE_GNU
|
||||
/* Maximum chars of output to write in MAXLEN. */
|
||||
extern int snprintf __P ((char *__s, size_t __maxlen,
|
||||
__const char *__format, ...));
|
||||
|
||||
extern int vsnprintf __P ((char *__s, size_t __maxlen,
|
||||
__const char *__format, __gnuc_va_list __arg));
|
||||
|
||||
/* Write formatted output to a string dynamically allocated with `malloc'.
|
||||
Store the address of the string in *PTR. */
|
||||
extern int vasprintf __P ((char **__ptr, __const char *__f,
|
||||
__gnuc_va_list __arg));
|
||||
extern int asprintf __P ((char **__ptr, __const char *__fmt, ...));
|
||||
|
||||
/* Write formatted output to a file descriptor. */
|
||||
extern int vdprintf __P ((int __fd, __const char *__fmt,
|
||||
__gnuc_va_list __arg));
|
||||
extern int dprintf __P ((int __fd, __const char *__fmt, ...));
|
||||
#endif
|
||||
|
||||
|
||||
/* Read formatted input from STREAM. */
|
||||
extern int fscanf __P ((FILE *__stream, __const char *__format, ...));
|
||||
/* Read formatted input from stdin. */
|
||||
extern int scanf __P ((__const char *__format, ...));
|
||||
/* Read formatted input from S. */
|
||||
extern int sscanf __P ((__const char *__s, __const char *__format, ...));
|
||||
|
||||
#ifdef __USE_GNU
|
||||
/* Read formatted input from S into argument list ARG. */
|
||||
extern int __vfscanf __P ((FILE *__s, __const char *__format,
|
||||
__gnuc_va_list __arg));
|
||||
extern int vfscanf __P ((FILE *__s, __const char *__format,
|
||||
__gnuc_va_list __arg));
|
||||
|
||||
/* Read formatted input from stdin into argument list ARG. */
|
||||
extern int vscanf __P ((__const char *__format, __gnuc_va_list __arg));
|
||||
|
||||
/* Read formatted input from S into argument list ARG. */
|
||||
extern int __vsscanf __P ((__const char *__s, __const char *__format,
|
||||
__gnuc_va_list __arg));
|
||||
extern int vsscanf __P ((__const char *__s, __const char *__format,
|
||||
__gnuc_va_list __arg));
|
||||
|
||||
|
||||
#ifdef __OPTIMIZE__
|
||||
extern __inline int
|
||||
vfscanf (FILE *__s, const char *__fmt, __gnuc_va_list __arg)
|
||||
{
|
||||
return __vfscanf (__s, __fmt, __arg);
|
||||
}
|
||||
extern __inline int
|
||||
vscanf (const char *__fmt, __gnuc_va_list __arg)
|
||||
{
|
||||
return __vfscanf (stdin, __fmt, __arg);
|
||||
}
|
||||
extern __inline int
|
||||
vsscanf (const char *__s, const char *__fmt, __gnuc_va_list __arg)
|
||||
{
|
||||
return __vsscanf (__s, __fmt, __arg);
|
||||
}
|
||||
#endif /* Optimizing. */
|
||||
#endif /* Use GNU. */
|
||||
|
||||
|
||||
/* This does actual reading when necessary, filling STREAM's
|
||||
buffer and returning the first character in it. */
|
||||
extern int __fillbf __P ((FILE *__stream));
|
||||
|
||||
|
||||
/* 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 can
|
||||
re-evaluate its argument, so it does. */
|
||||
#define __getc(stream) \
|
||||
((stream)->__bufp < (stream)->__get_limit ? \
|
||||
(int) ((unsigned char) *(stream)->__bufp++) : __fillbf(stream))
|
||||
|
||||
/* The C standard explicitly says this is a macro,
|
||||
so we always do the optimization for it. */
|
||||
#define getc(stream) __getc(stream)
|
||||
|
||||
#ifdef __OPTIMIZE__
|
||||
extern __inline int
|
||||
getchar (void)
|
||||
{
|
||||
return __getc (stdin);
|
||||
}
|
||||
#endif /* Optimizing. */
|
||||
|
||||
|
||||
/* 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
|
||||
re-evaluate its arguments, so it does. */
|
||||
#define __putc(c, stream) \
|
||||
((stream)->__bufp < (stream)->__put_limit ? \
|
||||
(int) (unsigned char) (*(stream)->__bufp++ = (unsigned char) (c)) : \
|
||||
__flshfp ((stream), (unsigned char) (c)))
|
||||
|
||||
/* The C standard explicitly says this can be a macro,
|
||||
so we always do the optimization for it. */
|
||||
#define putc(c, stream) __putc ((c), (stream))
|
||||
|
||||
#ifdef __OPTIMIZE__
|
||||
extern __inline int
|
||||
putchar (int __c)
|
||||
{
|
||||
return __putc (__c, stdout);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#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 *__s, int __n, FILE *__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
|
||||
#include <sys/types.h>
|
||||
|
||||
/* 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. */
|
||||
ssize_t __getdelim __P ((char **__lineptr, size_t *__n,
|
||||
int __delimiter, FILE *__stream));
|
||||
ssize_t getdelim __P ((char **__lineptr, size_t *__n,
|
||||
int __delimiter, FILE *__stream));
|
||||
|
||||
/* Like `getdelim', but reads up to a newline. */
|
||||
ssize_t __getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
|
||||
ssize_t getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
|
||||
|
||||
#ifdef __OPTIMIZE__
|
||||
extern __inline ssize_t
|
||||
__getline (char **__lineptr, size_t *__n, FILE *__stream)
|
||||
{
|
||||
return __getdelim (__lineptr, __n, '\n', __stream);
|
||||
}
|
||||
|
||||
extern __inline ssize_t
|
||||
getdelim (char **__lineptr, size_t *__n, int __delimiter, FILE *__stream)
|
||||
{
|
||||
return __getdelim (__lineptr, __n, __delimiter, __stream);
|
||||
}
|
||||
extern __inline ssize_t
|
||||
getline (char **__lineptr, size_t *__n, FILE *__stream)
|
||||
{
|
||||
return __getline (__lineptr, __n, __stream);
|
||||
}
|
||||
#endif /* Optimizing. */
|
||||
#endif
|
||||
|
||||
|
||||
/* Write a string to STREAM. */
|
||||
extern int fputs __P ((__const char *__s, FILE *__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 ((__ptr_t __ptr, size_t __size,
|
||||
size_t __n, FILE *__stream));
|
||||
/* Write chunks of generic data to STREAM. */
|
||||
extern size_t fwrite __P ((__const __ptr_t __ptr, size_t __size,
|
||||
size_t __n, FILE *__s));
|
||||
|
||||
|
||||
/* 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 *__stream, fpos_t *__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 __OPTIMIZE__
|
||||
#define feof(stream) ((stream)->__eof != 0)
|
||||
#define ferror(stream) ((stream)->__error != 0)
|
||||
#endif /* Optimizing. */
|
||||
|
||||
|
||||
/* Print a message describing the meaning of the value of errno. */
|
||||
extern void perror __P ((__const char *__s));
|
||||
|
||||
#ifdef __USE_BSD
|
||||
extern int sys_nerr;
|
||||
extern char *sys_errlist[];
|
||||
#endif
|
||||
#ifdef __USE_GNU
|
||||
extern int _sys_nerr;
|
||||
extern char *_sys_errlist[];
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef __USE_POSIX
|
||||
/* Return the system file descriptor for STREAM. */
|
||||
extern int fileno __P ((FILE *__stream));
|
||||
#endif /* Use POSIX. */
|
||||
|
||||
|
||||
#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));
|
||||
/* Return the name of the current user. */
|
||||
extern char *cuserid __P ((char *__s));
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef __USE_GNU
|
||||
struct obstack; /* See <obstack.h>. */
|
||||
|
||||
/* Open a stream that writes to OBSTACK. */
|
||||
extern FILE *open_obstack_stream __P ((struct obstack *__obstack));
|
||||
|
||||
/* 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,
|
||||
__gnuc_va_list __args));
|
||||
#endif
|
||||
|
||||
|
||||
__END_DECLS
|
||||
|
||||
#endif /* <stdio.h> included. */
|
||||
|
||||
#endif /* stdio.h */
|
||||
Reference in New Issue
Block a user