C stdio.h library functions | C Function

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C stdio.h library functions:

All C inbuilt functions which are declared in stdio.h header file are given below. The source code for stdio.h header file is also given below for your reference.

List of inbuilt C functions in stdio.h file:

Function	Description
printf()	This function is used to print the character, string, float, integer, octal and hexadecimal values onto the output screen
scanf()	This function is used to read a character, string, numeric data from keyboard.
getc()	It reads character from file
gets()	It reads line from keyboard
getchar()	It reads character from keyboard
puts()	It writes line to o/p screen
putchar()	It writes a character to screen
clearerr()	This function clears the error indicators
f open()	All file handling functions are defined in stdio.h header file
f close()	closes an opened file
getw()	reads an integer from file
putw()	writes an integer to file
f getc()	reads a character from file
putc()	writes a character to file
f putc()	writes a character to file
f gets()	reads string from a file, one line at a time
f puts()	writes string to a file
f eof()	finds end of file
f getchar	reads a character from keyboard
f getc()	reads a character from file
f printf()	writes formatted data to a file
f scanf()	reads formatted data from a file
f getchar	reads a character from keyboard
f putchar	writes a character from keyboard
f seek()	moves file pointer position to given location
SEEK_SET	moves file pointer position to the beginning of the file
SEEK_CUR	moves file pointer position to given location
SEEK_END	moves file pointer position to the end of file.
f tell()	gives current position of file pointer
rewind()	moves file pointer position to the beginning of the file
putc()	writes a character to file
sprint()	writes formatted output to string
sscanf()	Reads formatted input from a string
remove()	deletes a file
fflush()	flushes a file

Source code for stdio.h header file:

Please find below the source code for stdio.h header file. This code is taken from DevC++ compiler files for your reference.

/*
 * stdio.h
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is a part of the mingw-runtime package.
 * No warranty is given; refer to the file DISCLAIMER within the package.
 *
 * Definitions of types and prototypes of functions for standard input and
 * output.
 *
 * NOTE: The file manipulation functions provided by Microsoft seem to
 * work with either slash (/) or backslash (\) as the directory separator.
 *
 */

#ifndef _STDIO_H_
#define	_STDIO_H_

/* All the headers include this file. */
#include <_mingw.h>

#ifndef RC_INVOKED
#define __need_size_t
#define __need_NULL
#define __need_wchar_t
#define	__need_wint_t
#include <stddef.h>
#define __need___va_list
#include <stdarg.h>
#endif	/* Not RC_INVOKED */

/* Flags for the iobuf structure  */
#define	_IOREAD	1 /* currently reading */
#define	_IOWRT	2 /* currently writing */
#define	_IORW	0x0080 /* opened as "r+w" */

/*
 * The three standard file pointers provided by the run time library.
 * NOTE: These will go to the bit-bucket silently in GUI applications!
 */
#define	STDIN_FILENO	0
#define	STDOUT_FILENO	1
#define	STDERR_FILENO	2

/* Returned by various functions on end of file condition or error. */
#define	EOF	(-1)

/*
 * The maximum length of a file name. You should use GetVolumeInformation
 * instead of this constant. But hey, this works.
 * Also defined in io.h.
 */
#ifndef FILENAME_MAX
#define	FILENAME_MAX	(260)
#endif

/*
 * The maximum number of files that may be open at once. I have set this to
 * a conservative number. The actual value may be higher.
 */
#define FOPEN_MAX	(20)

/* After creating this many names, tmpnam and tmpfile return NULL */
#define TMP_MAX	32767
/*
 * Tmpnam, tmpfile and, sometimes, _tempnam try to create
 * temp files in the root directory of the current drive
 * (not in pwd, as suggested by some older MS doc's).
 * Redefining these macros does not effect the CRT functions.
 */
#define _P_tmpdir   "\\"
#ifndef __STRICT_ANSI__
#define P_tmpdir _P_tmpdir
#endif
#define _wP_tmpdir  L"\\"

/*
 * The maximum size of name (including NUL) that will be put in the user
 * supplied buffer caName for tmpnam.
 * Inferred from the size of the static buffer returned by tmpnam
 * when passed a NULL argument. May actually be smaller.
 */
#define L_tmpnam (16)

#define _IOFBF    0x0000  /* full buffered */
#define _IOLBF    0x0040  /* line buffered */
#define _IONBF    0x0004  /* not buffered */

#define _IOMYBUF  0x0008  /* stdio malloc()'d buffer */
#define _IOEOF    0x0010  /* EOF reached on read */
#define _IOERR    0x0020  /* I/O error from system */
#define _IOSTRG   0x0040  /* Strange or no file descriptor */
#ifdef _POSIX_SOURCE
# define _IOAPPEND 0x0200
#endif
/*
 * The buffer size as used by setbuf such that it is equivalent to
 * (void) setvbuf(fileSetBuffer, caBuffer, _IOFBF, BUFSIZ).
 */
#define	BUFSIZ	512

/* Constants for nOrigin indicating the position relative to which fseek
 * sets the file position. Enclosed in ifdefs because io.h could also
 * define them. (Though not anymore since io.h includes this file now.) */
#ifndef	SEEK_SET
#define SEEK_SET	(0)
#endif

#ifndef	SEEK_CUR
#define	SEEK_CUR	(1)
#endif

#ifndef	SEEK_END
#define SEEK_END	(2)
#endif

#ifndef	RC_INVOKED

#ifndef __VALIST
#ifdef __GNUC__
#define __VALIST __gnuc_va_list
#else
#define __VALIST char*
#endif
#endif /* defined __VALIST  */

/*
 * The structure underlying the FILE type.
 *
 * Some believe that nobody in their right mind should make use of the
 * internals of this structure. Provided by Pedro A. Aranda Gutiirrez
 * <paag@tid.es>.
 */
#ifndef _FILE_DEFINED
#define	_FILE_DEFINED
typedef struct _iobuf
{
	char*	_ptr;
	int	_cnt;
	char*	_base;
	int	_flag;
	int	_file;
	int	_charbuf;
	int	_bufsiz;
	char*	_tmpfname;
} FILE;
#endif	/* Not _FILE_DEFINED */

/*
 * The standard file handles
 */
#ifndef __DECLSPEC_SUPPORTED

extern FILE (*_imp___iob)[];	/* A pointer to an array of FILE */

#define _iob	(*_imp___iob)	/* An array of FILE */

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT FILE _iob[];	/* An array of FILE imported from DLL. */

#endif /* __DECLSPEC_SUPPORTED */

#define stdin	(&_iob[STDIN_FILENO])
#define stdout	(&_iob[STDOUT_FILENO])
#define stderr	(&_iob[STDERR_FILENO])

#ifdef __cplusplus
extern "C" {
#endif

/*
 * File Operations
 */
_CRTIMP FILE* __cdecl f open (const char*, const char*);
_CRTIMP FILE* __cdecl	f reopen (const char*, const char*, FILE*);
_CRTIMP int __cdecl	f flush (FILE*);
_CRTIMP int __cdecl	f close (FILE*);
/* MS puts remove & rename (but not wide versions) in io.h  also */
_CRTIMP int __cdecl	remove (const char*);
_CRTIMP int __cdecl	rename (const char*, const char*);
_CRTIMP FILE* __cdecl	tmpfile (void);
_CRTIMP char* __cdecl	tmpnam (char*);

#ifndef __STRICT_ANSI__
_CRTIMP char* __cdecl	_tempnam (const char*, const char*);
_CRTIMP int  __cdecl    _rmtmp(void);

#ifndef	NO_OLDNAMES
_CRTIMP char* __cdecl	tempnam (const char*, const char*);
_CRTIMP int __cdecl     rmtmp(void);
#endif
#endif /* __STRICT_ANSI__ */

_CRTIMP int __cdecl	setvbuf (FILE*, char*, int, size_t);

_CRTIMP void __cdecl	setbuf (FILE*, char*);

/*
 * Formatted Output
 */

_CRTIMP int __cdecl	f printf (FILE*, const char*, ...);
_CRTIMP int __cdecl	printf (const char*, ...);
_CRTIMP int __cdecl	sprintf (char*, const char*, ...);
_CRTIMP int __cdecl	_snprintf (char*, size_t, const char*, ...);
_CRTIMP int __cdecl	vfprintf (FILE*, const char*, __VALIST);
_CRTIMP int __cdecl	vprintf (const char*, __VALIST);
_CRTIMP int __cdecl	vsprintf (char*, const char*, __VALIST);
_CRTIMP int __cdecl	_vsnprintf (char*, size_t, const char*, __VALIST);

#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
int __cdecl snprintf(char* s, size_t n, const char*  format, ...);
__CRT_INLINE int __cdecl
vsnprintf (char* s, size_t n, const char* format, __VALIST arg)
  { return _vsnprintf ( s, n, format, arg); }
int __cdecl vscanf (const char * __restrict__, __VALIST);
int __cdecl vf scanf (FILE * __restrict__, const char * __restrict__,
		     __VALIST);
int __cdecl vsscanf (const char * __restrict__,
		     const char * __restrict__, __VALIST);
#endif

/*
 * Formatted Input
 */

_CRTIMP int __cdecl	f scanf (FILE*, const char*, ...);
_CRTIMP int __cdecl	scanf (const char*, ...);
_CRTIMP int __cdecl	sscanf (const char*, const char*, ...);
/*
 * Character Input and Output Functions
 */

_CRTIMP int __cdecl	f getc (FILE*);
_CRTIMP char* __cdecl	f gets (char*, int, FILE*);
_CRTIMP int __cdecl	f putc (int, FILE*);
_CRTIMP int __cdecl	f puts (const char*, FILE*);
_CRTIMP char* __cdecl	gets (char*);
_CRTIMP int __cdecl	puts (const char*);
_CRTIMP int __cdecl	ungetc (int, FILE*);

/* Traditionally, getc and putc are defined as macros. but the
   standard doesn't say that they must be macros.
   We use inline functions here to allow the fast versions
   to be used in C++ with namespace qualification, eg., ::getc.

   _filbuf and _flsbuf  are not thread-safe. */
_CRTIMP int __cdecl	_filbuf (FILE*);
_CRTIMP int __cdecl	_flsbuf (int, FILE*);

#if !defined _MT

__CRT_INLINE int __cdecl getc (FILE* __F)
{
  return (--__F->_cnt >= 0)
    ?  (int) (unsigned char) *__F->_ptr++
    : _filbuf (__F);
}

__CRT_INLINE int __cdecl putc (int __c, FILE* __F)
{
  return (--__F->_cnt >= 0)
    ?  (int) (unsigned char) (*__F->_ptr++ = (char)__c)
    :  _flsbuf (__c, __F);
}

__CRT_INLINE int __cdecl getchar (void)
{
  return (--stdin->_cnt >= 0)
    ?  (int) (unsigned char) *stdin->_ptr++
    : _filbuf (stdin);
}

__CRT_INLINE int __cdecl putchar(int __c)
{
  return (--stdout->_cnt >= 0)
    ?  (int) (unsigned char) (*stdout->_ptr++ = (char)__c)
    :  _flsbuf (__c, stdout);}

#else  /* Use library functions.  */

_CRTIMP int __cdecl	getc (FILE*);
_CRTIMP int __cdecl	putc (int, FILE*);
_CRTIMP int __cdecl	getchar (void);
_CRTIMP int __cdecl	putchar (int);

#endif

/*
 * Direct Input and Output Functions
 */

_CRTIMP size_t __cdecl	f read (void*, size_t, size_t, FILE*);
_CRTIMP size_t __cdecl	f write (const void*, size_t, size_t, FILE*);

/*
 * File Positioning Functions
 */

_CRTIMP int __cdecl	f seek (FILE*, long, int);
_CRTIMP long __cdecl	f tell (FILE*);
_CRTIMP void __cdecl	rewind (FILE*);

#ifdef __USE_MINGW_FSEEK  /* These are in libmingwex.a */
/*
 * Workaround for limitations on win9x where a file contents are
 * not zero'd out if you seek past the end and then write.
 */

int __cdecl __mingw_f seek (FILE *, long, int);
int __cdecl __mingw_f write (const void*, size_t, size_t, FILE*);
#define f seek(fp, offset, whence)  __mingw_f seek(fp, offset, whence)
#define f write(buffer, size, count, fp)  __mingw_f write(buffer, size, count, fp)
#endif /* __USE_MINGW_FSEEK */

/*
 * An opaque data type used for storing file positions... The contents of
 * this type are unknown, but we (the compiler) need to know the size
 * because the programmer using f getpos and f setpos will be setting aside
 * storage for f pos_t structres. Actually I tested using a byte array and
 * it is fairly evident that the fpos_t type is a long (in CRTDLL.DLL).
 * Perhaps an unsigned long? TODO? It's definitely a 64-bit number in
 * MSVCRT however, and for now `long long' will do.
 */
#ifdef __MSVCRT__
typedef long long f pos_t;
#else
typedef long	f pos_t;
#endif

_CRTIMP int __cdecl	f getpos	(FILE*, fpos_t*);
_CRTIMP int __cdecl	f setpos (FILE*, const fpos_t*);

/*
 * Error Functions
 */

_CRTIMP int __cdecl	f eof (FILE*);
_CRTIMP int __cdecl	f error (FILE*);

#ifdef __cplusplus
inline int __cdecl f eof (FILE* __F)
  { return __F->_flag & _IOEOF; }
inline int __cdecl f error (FILE* __F)
  { return __F->_flag & _IOERR; }
#else
#define f eof(__F)     ((__F)->_flag & _IOEOF)
#define f error(__F)   ((__F)->_flag & _IOERR)
#endif

_CRTIMP void __cdecl	clearerr (FILE*);
_CRTIMP void __cdecl	perror (const char*);

#ifndef __STRICT_ANSI__
/*
 * Pipes
 */
_CRTIMP FILE* __cdecl	_popen (const char*, const char*);
_CRTIMP int __cdecl	_pclose (FILE*);

#ifndef NO_OLDNAMES
_CRTIMP FILE* __cdecl	popen (const char*, const char*);
_CRTIMP int __cdecl	pclose (FILE*);
#endif

/*
 * Other Non ANSI functions
 */
_CRTIMP int __cdecl	_flushall (void);
_CRTIMP int __cdecl	_f getchar (void);
_CRTIMP int __cdecl	_f putchar (int);
_CRTIMP FILE* __cdecl	_f dopen (int, const char*);
_CRTIMP int __cdecl	_fileno (FILE*);
_CRTIMP int __cdecl	_f closeall(void);
_CRTIMP FILE* __cdecl	_f sopen(const char*, const char*, int);
#ifdef __MSVCRT__
_CRTIMP int __cdecl	_getmaxstdio(void);
_CRTIMP int __cdecl	_setmaxstdio(int);
#endif

#ifndef _NO_OLDNAMES
_CRTIMP int __cdecl	f getchar (void);
_CRTIMP int __cdecl	f putchar (int);
_CRTIMP FILE* __cdecl	f dopen (int, const char*);
_CRTIMP int __cdecl	fileno (FILE*);
#endif	/* Not _NO_OLDNAMES */

#define _fileno(__F) ((__F)->_file)
#ifndef _NO_OLDNAMES
#define fileno(__F) ((__F)->_file)
#endif

#if defined (__MSVCRT__) && !defined (__NO_MINGW_LFS)
#include <sys/types.h>
__CRT_INLINE FILE* __cdecl fopen64 (const char* filename, const char* mode)
{
  return f open (filename, mode); 
}

int __cdecl f seeko64 (FILE*, off64_t, int);

#ifdef __USE_MINGW_FSEEK
int __cdecl __mingw_f seeko64 (FILE *, off64_t, int);
#define f seeko64(fp, offset, whence)  __mingw_fseeko64(fp, offset, whence)
#endif

__CRT_INLINE off64_t __cdecl f tello64 (FILE * stream)
{
  f pos_t pos;
  if (f getpos(stream, &pos))
    return  -1LL;
  else
   return ((off64_t) pos);
}
#endif /* __NO_MINGW_LFS */

#endif	/* Not __STRICT_ANSI__ */

/* Wide  versions */

#ifndef _WSTDIO_DEFINED
/*  also in wchar.h - keep in sync */
_CRTIMP int __cdecl	f wprintf (FILE*, const wchar_t*, ...);
_CRTIMP int __cdecl	wprintf (const wchar_t*, ...);
_CRTIMP int __cdecl	swprintf (wchar_t*, const wchar_t*, ...);
_CRTIMP int __cdecl	_snwprintf (wchar_t*, size_t, const wchar_t*, ...);
_CRTIMP int __cdecl	vf wprintf (FILE*, const wchar_t*, __VALIST);
_CRTIMP int __cdecl	vwprintf (const wchar_t*, __VALIST);
_CRTIMP int __cdecl	vswprintf (wchar_t*, const wchar_t*, __VALIST);
_CRTIMP int __cdecl	_vsnwprintf (wchar_t*, size_t, const wchar_t*, __VALIST);
_CRTIMP int __cdecl	f wscanf (FILE*, const wchar_t*, ...);
_CRTIMP int __cdecl	wscanf (const wchar_t*, ...);
_CRTIMP int __cdecl	swscanf (const wchar_t*, const wchar_t*, ...);
_CRTIMP wint_t __cdecl	f getwc (FILE*);
_CRTIMP wint_t __cdecl	f putwc (wchar_t, FILE*);
_CRTIMP wint_t __cdecl	ungetwc (wchar_t, FILE*);

#ifdef __MSVCRT__ 
_CRTIMP wchar_t* __cdecl f getws (wchar_t*, int, FILE*);
_CRTIMP int __cdecl	f putws (const wchar_t*, FILE*);
_CRTIMP wint_t __cdecl	getwc (FILE*);
_CRTIMP wint_t __cdecl	getwchar (void);
_CRTIMP wchar_t* __cdecl _getws (wchar_t*);
_CRTIMP wint_t __cdecl	putwc (wint_t, FILE*);
_CRTIMP int __cdecl	_putws (const wchar_t*);
_CRTIMP wint_t __cdecl	putwchar (wint_t);
_CRTIMP FILE* __cdecl	_wf dopen(int, wchar_t *);
_CRTIMP FILE* __cdecl	_wf open (const wchar_t*, const wchar_t*);
_CRTIMP FILE* __cdecl	_wf reopen (const wchar_t*, const wchar_t*, FILE*);
_CRTIMP FILE* __cdecl	_wf sopen (const wchar_t*, const wchar_t*, int);
_CRTIMP wchar_t* __cdecl _wtmpnam (wchar_t*);
_CRTIMP wchar_t* __cdecl _wtempnam (const wchar_t*, const wchar_t*);
_CRTIMP int __cdecl	_wrename (const wchar_t*, const wchar_t*);
_CRTIMP int __cdecl	_wr emove (const wchar_t*);
_CRTIMP void __cdecl	_wp error (const wchar_t*);
_CRTIMP FILE* __cdecl	_wp open (const wchar_t*, const wchar_t*);
#endif	/* __MSVCRT__ */

#ifndef __NO_ISOCEXT  /* externs in libmingwex.a */
int __cdecl snwprintf (wchar_t* s, size_t n, const wchar_t*  format, ...);
__CRT_INLINE int __cdecl
vsnwprintf (wchar_t* s, size_t n, const wchar_t* format, __VALIST arg)
  { return _vsnwprintf ( s, n, format, arg);}
int __cdecl vwscanf (const wchar_t * __restrict__, __VALIST);
int __cdecl vf wscanf (FILE * __restrict__,
		       const wchar_t * __restrict__, __VALIST);
int __cdecl vswscanf (const wchar_t * __restrict__,
		       const wchar_t * __restrict__, __VALIST);
#endif

#define _WSTDIO_DEFINED
#endif /* _WSTDIO_DEFINED */

#ifndef __STRICT_ANSI__
#ifdef __MSVCRT__
#ifndef NO_OLDNAMES
_CRTIMP FILE* __cdecl	wp open (const wchar_t*, const wchar_t*);
#endif /* not NO_OLDNAMES */
#endif /* MSVCRT runtime */

/*
 * Other Non ANSI wide functions
 */
_CRTIMP wint_t __cdecl	_f getwchar (void);
_CRTIMP wint_t __cdecl	_f putwchar (wint_t);
_CRTIMP int __cdecl	_getw (FILE*);
_CRTIMP int __cdecl	_putw (int, FILE*);

#ifndef _NO_OLDNAMES
_CRTIMP wint_t __cdecl	f getwchar (void);
_CRTIMP wint_t __cdecl	f putwchar (wint_t);
_CRTIMP int __cdecl	getw (FILE*);
_CRTIMP int __cdecl	putw (int, FILE*);
#endif	/* Not _NO_OLDNAMES */

#endif /* __STRICT_ANSI */

#ifdef __cplusplus
}
#endif

#endif	/* Not RC_INVOKED */

#endif /* _STDIO_H_ */

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* stdio.h

* This file has no copyright assigned and is placed in the Public Domain.

* This file is a part of the mingw-runtime package.

* No warranty is given; refer to the file DISCLAIMER within the package.

* Definitions of types and prototypes of functions for standard input and

* output.

* NOTE: The file manipulation functions provided by Microsoft seem to

* work with either slash (/) or backslash (\) as the directory separator.

#ifndef _STDIO_H_

#define _STDIO_H_

/* All the headers include this file. */

#include <_mingw.h>

#ifndef RC_INVOKED

#define __need_size_t

#define __need_NULL

#define __need_wchar_t

#define __need_wint_t

#include <stddef.h>

#define __need___va_list

#include <stdarg.h>

#endif /* Not RC_INVOKED */

/* Flags for the iobuf structure */

#define _IOREAD 1 /* currently reading */

#define _IOWRT 2 /* currently writing */

#define _IORW 0x0080 /* opened as "r+w" */

* The three standard file pointers provided by the run time library.

* NOTE: These will go to the bit-bucket silently in GUI applications!

#define STDIN_FILENO 0

#define STDOUT_FILENO 1

#define STDERR_FILENO 2

/* Returned by various functions on end of file condition or error. */

#define EOF (-1)

* The maximum length of a file name. You should use GetVolumeInformation

* instead of this constant. But hey, this works.

* Also defined in io.h.

#ifndef FILENAME_MAX

#define FILENAME_MAX (260)

#endif

* The maximum number of files that may be open at once. I have set this to

* a conservative number. The actual value may be higher.

#define FOPEN_MAX (20)

/* After creating this many names, tmpnam and tmpfile return NULL */

#define TMP_MAX 32767

* Tmpnam, tmpfile and, sometimes, _tempnam try to create

* temp files in the root directory of the current drive

* (not in pwd, as suggested by some older MS doc's).

* Redefining these macros does not effect the CRT functions.

#define _P_tmpdir "\\"

#ifndef __STRICT_ANSI__

#define P_tmpdir _P_tmpdir

#endif

#define _wP_tmpdir L"\\"

* The maximum size of name (including NUL) that will be put in the user

* supplied buffer caName for tmpnam.

* Inferred from the size of the static buffer returned by tmpnam

* when passed a NULL argument. May actually be smaller.

#define L_tmpnam (16)

#define _IOFBF 0x0000 /* full buffered */

#define _IOLBF 0x0040 /* line buffered */

#define _IONBF 0x0004 /* not buffered */

#define _IOMYBUF 0x0008 /* stdio malloc()'d buffer */

#define _IOEOF 0x0010 /* EOF reached on read */

#define _IOERR 0x0020 /* I/O error from system */

#define _IOSTRG 0x0040 /* Strange or no file descriptor */

#ifdef _POSIX_SOURCE

# define _IOAPPEND 0x0200

#endif

* The buffer size as used by setbuf such that it is equivalent to

* (void) setvbuf(fileSetBuffer, caBuffer, _IOFBF, BUFSIZ).

#define BUFSIZ 512

/* Constants for nOrigin indicating the position relative to which fseek

* sets the file position. Enclosed in ifdefs because io.h could also

* define them. (Though not anymore since io.h includes this file now.) */

#ifndef SEEK_SET

#define SEEK_SET (0)

#endif

#ifndef SEEK_CUR

#define SEEK_CUR (1)

#endif

#ifndef SEEK_END

#define SEEK_END (2)

#endif

#ifndef RC_INVOKED

#ifndef __VALIST

#ifdef __GNUC__

#define __VALIST __gnuc_va_list

#else

#define __VALIST char*

#endif

#endif /* defined __VALIST */

* The structure underlying the FILE type.

* Some believe that nobody in their right mind should make use of the

* internals of this structure. Provided by Pedro A. Aranda Gutiirrez

* <paag@tid.es>.

#ifndef _FILE_DEFINED

#define _FILE_DEFINED

typedef struct _iobuf

{

char* _ptr;

int _cnt;

char* _base;

int _flag;

int _file;

int _charbuf;

int _bufsiz;

char* _tmpfname;

} FILE;

#endif /* Not _FILE_DEFINED */

* The standard file handles

#ifndef __DECLSPEC_SUPPORTED

extern FILE (*_imp___iob)[]; /* A pointer to an array of FILE */

#define _iob (*_imp___iob) /* An array of FILE */

#else /* __DECLSPEC_SUPPORTED */

__MINGW_IMPORT FILE _iob[]; /* An array of FILE imported from DLL. */

#endif /* __DECLSPEC_SUPPORTED */

#define stdin (&_iob[STDIN_FILENO])

#define stdout (&_iob[STDOUT_FILENO])

#define stderr (&_iob[STDERR_FILENO])

#ifdef __cplusplus

extern "C" {

#endif

* File Operations

_CRTIMP FILE* __cdecl f open (const char*, const char*);

_CRTIMP FILE* __cdecl f reopen (const char*, const char*, FILE*);

_CRTIMP int __cdecl f flush (FILE*);

_CRTIMP int __cdecl f close (FILE*);

/* MS puts remove & rename (but not wide versions) in io.h also */

_CRTIMP int __cdecl remove (const char*);

_CRTIMP int __cdecl rename (const char*, const char*);

_CRTIMP FILE* __cdecl tmpfile (void);

_CRTIMP char* __cdecl tmpnam (char*);

#ifndef __STRICT_ANSI__

_CRTIMP char* __cdecl _tempnam (const char*, const char*);

_CRTIMP int __cdecl _rmtmp(void);

#ifndef NO_OLDNAMES

_CRTIMP char* __cdecl tempnam (const char*, const char*);

_CRTIMP int __cdecl rmtmp(void);

#endif

#endif /* __STRICT_ANSI__ */

_CRTIMP int __cdecl setvbuf (FILE*, char*, int, size_t);

_CRTIMP void __cdecl setbuf (FILE*, char*);

* Formatted Output

_CRTIMP int __cdecl f printf (FILE*, const char*, ...);

_CRTIMP int __cdecl printf (const char*, ...);

_CRTIMP int __cdecl sprintf (char*, const char*, ...);

_CRTIMP int __cdecl _snprintf (char*, size_t, const char*, ...);

_CRTIMP int __cdecl vfprintf (FILE*, const char*, __VALIST);

_CRTIMP int __cdecl vprintf (const char*, __VALIST);

_CRTIMP int __cdecl vsprintf (char*, const char*, __VALIST);

_CRTIMP int __cdecl _vsnprintf (char*, size_t, const char*, __VALIST);

#ifndef __NO_ISOCEXT /* externs in libmingwex.a */

int __cdecl snprintf(char* s, size_t n, const char* format, ...);

__CRT_INLINE int __cdecl

vsnprintf (char* s, size_t n, const char* format, __VALIST arg)

{ return _vsnprintf ( s, n, format, arg); }

int __cdecl vscanf (const char * __restrict__, __VALIST);

int __cdecl vf scanf (FILE * __restrict__, const char * __restrict__,

__VALIST);

int __cdecl vsscanf (const char * __restrict__,

const char * __restrict__, __VALIST);

#endif

* Formatted Input

_CRTIMP int __cdecl f scanf (FILE*, const char*, ...);

_CRTIMP int __cdecl scanf (const char*, ...);

_CRTIMP int __cdecl sscanf (const char*, const char*, ...);

* Character Input and Output Functions

_CRTIMP int __cdecl f getc (FILE*);

_CRTIMP char* __cdecl f gets (char*, int, FILE*);

_CRTIMP int __cdecl f putc (int, FILE*);

_CRTIMP int __cdecl f puts (const char*, FILE*);

_CRTIMP char* __cdecl gets (char*);

_CRTIMP int __cdecl puts (const char*);

_CRTIMP int __cdecl ungetc (int, FILE*);

/* Traditionally, getc and putc are defined as macros. but the

standard doesn't say that they must be macros.

We use inline functions here to allow the fast versions

to be used in C++ with namespace qualification, eg., ::getc.

_filbuf and _flsbuf are not thread-safe. */

_CRTIMP int __cdecl _filbuf (FILE*);

_CRTIMP int __cdecl _flsbuf (int, FILE*);

#if !defined _MT

__CRT_INLINE int __cdecl getc (FILE* __F)

{

return (--__F->_cnt >= 0)

? (int) (unsigned char) *__F->_ptr++

: _filbuf (__F);

}

__CRT_INLINE int __cdecl putc (int __c, FILE* __F)

{

return (--__F->_cnt >= 0)

? (int) (unsigned char) (*__F->_ptr++ = (char)__c)

: _flsbuf (__c, __F);

}

__CRT_INLINE int __cdecl getchar (void)

{

return (--stdin->_cnt >= 0)

? (int) (unsigned char) *stdin->_ptr++

: _filbuf (stdin);

}

__CRT_INLINE int __cdecl putchar(int __c)

{

return (--stdout->_cnt >= 0)

? (int) (unsigned char) (*stdout->_ptr++ = (char)__c)

: _flsbuf (__c, stdout);}

#else /* Use library functions. */

_CRTIMP int __cdecl getc (FILE*);

_CRTIMP int __cdecl putc (int, FILE*);

_CRTIMP int __cdecl getchar (void);

_CRTIMP int __cdecl putchar (int);

#endif

* Direct Input and Output Functions

_CRTIMP size_t __cdecl f read (void*, size_t, size_t, FILE*);

_CRTIMP size_t __cdecl f write (const void*, size_t, size_t, FILE*);

* File Positioning Functions

_CRTIMP int __cdecl f seek (FILE*, long, int);

_CRTIMP long __cdecl f tell (FILE*);

_CRTIMP void __cdecl rewind (FILE*);

#ifdef __USE_MINGW_FSEEK /* These are in libmingwex.a */

* Workaround for limitations on win9x where a file contents are

* not zero'd out if you seek past the end and then write.

int __cdecl __mingw_f seek (FILE *, long, int);

int __cdecl __mingw_f write (const void*, size_t, size_t, FILE*);

#define f seek(fp, offset, whence) __mingw_f seek(fp, offset, whence)

#define f write(buffer, size, count, fp) __mingw_f write(buffer, size, count, fp)

#endif /* __USE_MINGW_FSEEK */

* An opaque data type used for storing file positions... The contents of

* this type are unknown, but we (the compiler) need to know the size

* because the programmer using f getpos and f setpos will be setting aside

* storage for f pos_t structres. Actually I tested using a byte array and

* it is fairly evident that the fpos_t type is a long (in CRTDLL.DLL).

* Perhaps an unsigned long? TODO? It's definitely a 64-bit number in

* MSVCRT however, and for now `long long' will do.

#ifdef __MSVCRT__

typedef long long f pos_t;

#else

typedef long f pos_t;

#endif

_CRTIMP int __cdecl f getpos (FILE*, fpos_t*);

_CRTIMP int __cdecl f setpos (FILE*, const fpos_t*);

* Error Functions

_CRTIMP int __cdecl f eof (FILE*);

_CRTIMP int __cdecl f error (FILE*);

#ifdef __cplusplus

inline int __cdecl f eof (FILE* __F)

{ return __F->_flag & _IOEOF; }

inline int __cdecl f error (FILE* __F)

{ return __F->_flag & _IOERR; }

#else

#define f eof(__F) ((__F)->_flag & _IOEOF)

#define f error(__F) ((__F)->_flag & _IOERR)

#endif

_CRTIMP void __cdecl clearerr (FILE*);

_CRTIMP void __cdecl perror (const char*);

#ifndef __STRICT_ANSI__

* Pipes

_CRTIMP FILE* __cdecl _popen (const char*, const char*);

_CRTIMP int __cdecl _pclose (FILE*);

#ifndef NO_OLDNAMES

_CRTIMP FILE* __cdecl popen (const char*, const char*);

_CRTIMP int __cdecl pclose (FILE*);

#endif

* Other Non ANSI functions

_CRTIMP int __cdecl _flushall (void);

_CRTIMP int __cdecl _f getchar (void);

_CRTIMP int __cdecl _f putchar (int);

_CRTIMP FILE* __cdecl _f dopen (int, const char*);

_CRTIMP int __cdecl _fileno (FILE*);

_CRTIMP int __cdecl _f closeall(void);

_CRTIMP FILE* __cdecl _f sopen(const char*, const char*, int);

#ifdef __MSVCRT__

_CRTIMP int __cdecl _getmaxstdio(void);

_CRTIMP int __cdecl _setmaxstdio(int);

#endif

#ifndef _NO_OLDNAMES

_CRTIMP int __cdecl f getchar (void);

_CRTIMP int __cdecl f putchar (int);

_CRTIMP FILE* __cdecl f dopen (int, const char*);

_CRTIMP int __cdecl fileno (FILE*);

#endif /* Not _NO_OLDNAMES */

#define _fileno(__F) ((__F)->_file)

#ifndef _NO_OLDNAMES

#define fileno(__F) ((__F)->_file)

#endif

#if defined (__MSVCRT__) && !defined (__NO_MINGW_LFS)

#include <sys/types.h>

__CRT_INLINE FILE* __cdecl fopen64 (const char* filename, const char* mode)

{

return f open (filename, mode);

}

int __cdecl f seeko64 (FILE*, off64_t, int);

#ifdef __USE_MINGW_FSEEK

int __cdecl __mingw_f seeko64 (FILE *, off64_t, int);

#define f seeko64(fp, offset, whence) __mingw_fseeko64(fp, offset, whence)

#endif

__CRT_INLINE off64_t __cdecl f tello64 (FILE * stream)

{

f pos_t pos;

if (f getpos(stream, &pos))

return -1LL;

else

return ((off64_t) pos);

}

#endif /* __NO_MINGW_LFS */

#endif /* Not __STRICT_ANSI__ */

/* Wide versions */

#ifndef _WSTDIO_DEFINED

/* also in wchar.h - keep in sync */

_CRTIMP int __cdecl f wprintf (FILE*, const wchar_t*, ...);

_CRTIMP int __cdecl wprintf (const wchar_t*, ...);

_CRTIMP int __cdecl swprintf (wchar_t*, const wchar_t*, ...);

_CRTIMP int __cdecl _snwprintf (wchar_t*, size_t, const wchar_t*, ...);

_CRTIMP int __cdecl vf wprintf (FILE*, const wchar_t*, __VALIST);

_CRTIMP int __cdecl vwprintf (const wchar_t*, __VALIST);

_CRTIMP int __cdecl vswprintf (wchar_t*, const wchar_t*, __VALIST);

_CRTIMP int __cdecl _vsnwprintf (wchar_t*, size_t, const wchar_t*, __VALIST);

_CRTIMP int __cdecl f wscanf (FILE*, const wchar_t*, ...);

_CRTIMP int __cdecl wscanf (const wchar_t*, ...);

_CRTIMP int __cdecl swscanf (const wchar_t*, const wchar_t*, ...);

_CRTIMP wint_t __cdecl f getwc (FILE*);

_CRTIMP wint_t __cdecl f putwc (wchar_t, FILE*);

_CRTIMP wint_t __cdecl ungetwc (wchar_t, FILE*);

#ifdef __MSVCRT__

_CRTIMP wchar_t* __cdecl f getws (wchar_t*, int, FILE*);

_CRTIMP int __cdecl f putws (const wchar_t*, FILE*);

_CRTIMP wint_t __cdecl getwc (FILE*);

_CRTIMP wint_t __cdecl getwchar (void);

_CRTIMP wchar_t* __cdecl _getws (wchar_t*);

_CRTIMP wint_t __cdecl putwc (wint_t, FILE*);

_CRTIMP int __cdecl _putws (const wchar_t*);

_CRTIMP wint_t __cdecl putwchar (wint_t);

_CRTIMP FILE* __cdecl _wf dopen(int, wchar_t *);

_CRTIMP FILE* __cdecl _wf open (const wchar_t*, const wchar_t*);

_CRTIMP FILE* __cdecl _wf reopen (const wchar_t*, const wchar_t*, FILE*);

_CRTIMP FILE* __cdecl _wf sopen (const wchar_t*, const wchar_t*, int);

_CRTIMP wchar_t* __cdecl _wtmpnam (wchar_t*);

_CRTIMP wchar_t* __cdecl _wtempnam (const wchar_t*, const wchar_t*);

_CRTIMP int __cdecl _wrename (const wchar_t*, const wchar_t*);

_CRTIMP int __cdecl _wr emove (const wchar_t*);

_CRTIMP void __cdecl _wp error (const wchar_t*);

_CRTIMP FILE* __cdecl _wp open (const wchar_t*, const wchar_t*);

#endif /* __MSVCRT__ */

#ifndef __NO_ISOCEXT /* externs in libmingwex.a */

int __cdecl snwprintf (wchar_t* s, size_t n, const wchar_t* format, ...);

__CRT_INLINE int __cdecl

vsnwprintf (wchar_t* s, size_t n, const wchar_t* format, __VALIST arg)

{ return _vsnwprintf ( s, n, format, arg);}

int __cdecl vwscanf (const wchar_t * __restrict__, __VALIST);

int __cdecl vf wscanf (FILE * __restrict__,

const wchar_t * __restrict__, __VALIST);

int __cdecl vswscanf (const wchar_t * __restrict__,

const wchar_t * __restrict__, __VALIST);

#endif

#define _WSTDIO_DEFINED

#endif /* _WSTDIO_DEFINED */

#ifndef __STRICT_ANSI__

#ifdef __MSVCRT__

#ifndef NO_OLDNAMES

_CRTIMP FILE* __cdecl wp open (const wchar_t*, const wchar_t*);

#endif /* not NO_OLDNAMES */

#endif /* MSVCRT runtime */

* Other Non ANSI wide functions

_CRTIMP wint_t __cdecl _f getwchar (void);

_CRTIMP wint_t __cdecl _f putwchar (wint_t);

_CRTIMP int __cdecl _getw (FILE*);

_CRTIMP int __cdecl _putw (int, FILE*);

#ifndef _NO_OLDNAMES

_CRTIMP wint_t __cdecl f getwchar (void);

_CRTIMP wint_t __cdecl f putwchar (wint_t);

_CRTIMP int __cdecl getw (FILE*);

_CRTIMP int __cdecl putw (int, FILE*);

#endif /* Not _NO_OLDNAMES */

#endif /* __STRICT_ANSI */

#ifdef __cplusplus

}

#endif

#endif /* Not RC_INVOKED */

#endif /* _STDIO_H_ */

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