FAT file output stream. More...

#include <fstream.h>

Inheritance diagram for ofstream:

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Collaboration diagram for ofstream:

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Public Types
typedef unsigned int	fmtflags

typedef unsigned char	iostate

typedef int32_t	off_type

typedef uint8_t	openmode

typedef uint32_t	pos_type

enum	seekdir { beg, cur, end }

typedef uint32_t	streamsize

Public Member Functions
bool	bad () const

void	clear (iostate state=goodbit)

void	close ()

bool	eof () const

bool	fail () const

char	fill ()

char	fill (char c)

fmtflags	flags () const

fmtflags	flags (fmtflags fl)

ostream &	flush ()

bool	good () const

bool	is_open ()

	ofstream (const char *path, openmode mode=out)

void	open (const char *path, openmode mode=out)

	operator const void * () const

bool	operator! () const

ostream &	operator<< (ostream &(*pf)(ostream &str))

ostream &	operator<< (ios_base &(*pf)(ios_base &str))

ostream &	operator<< (bool arg)

ostream &	operator<< (const char *arg)

ostream &	operator<< (const signed char *arg)

ostream &	operator<< (const unsigned char *arg)

ostream &	operator<< (char arg)

ostream &	operator<< (signed char arg)

ostream &	operator<< (unsigned char arg)

ostream &	operator<< (double arg)

ostream &	operator<< (float arg)

ostream &	operator<< (short arg)

ostream &	operator<< (unsigned short arg)

ostream &	operator<< (int arg)

ostream &	operator<< (unsigned int arg)

ostream &	operator<< (long arg)

ostream &	operator<< (unsigned long arg)

ostream &	operator<< (const void *arg)

ostream &	operator<< (const __FlashStringHelper *arg)

int	precision () const

int	precision (unsigned int n)

ostream &	put (char ch)

iostate	rdstate () const

ostream &	seekp (pos_type pos)

ostream &	seekp (off_type off, seekdir way)

fmtflags	setf (fmtflags fl)

fmtflags	setf (fmtflags fl, fmtflags mask)

void	setstate (iostate state)

pos_type	tellp ()

void	unsetf (fmtflags fl)

unsigned	width ()

unsigned	width (unsigned n)

Static Public Attributes
static const fmtflags	adjustfield = left \| right \| internal

static const openmode	app = 0X4

static const openmode	ate = 0X8

static const iostate	badbit = 0X01

static const fmtflags	basefield = dec \| hex \| oct

static const openmode	binary = 0X10

static const fmtflags	boolalpha = 0x0100

static const fmtflags	dec = 0x0008

static const iostate	eofbit = 0x02

static const iostate	failbit = 0X04

static const iostate	goodbit = 0x00

static const fmtflags	hex = 0x0010

static const openmode	in = 0X20

static const fmtflags	internal = 0x0004

static const fmtflags	left = 0x0001

static const fmtflags	oct = 0x0020

static const openmode	out = 0X40

static const fmtflags	right = 0x0002

static const fmtflags	showbase = 0x0200

static const fmtflags	showpoint = 0x0400

static const fmtflags	showpos = 0x0800

static const fmtflags	skipws = 0x1000

static const openmode	trunc = 0X80

static const fmtflags	uppercase = 0x4000

Detailed Description

FAT file output stream.

Member Typedef Documentation

typedef unsigned int ios_base::fmtflags

inherited

type for format flags

typedef unsigned char ios_base::iostate

inherited

typedef for iostate bitmask

typedef int32_t ios_base::off_type

inherited

type for relative seek offset

typedef uint8_t ios_base::openmode

inherited

typedef for iostream open mode

typedef uint32_t ios_base::pos_type

inherited

type for absolute seek position

typedef uint32_t ios_base::streamsize

inherited

unsigned size that can represent maximum file size. (violates spec - should be signed)

Member Enumeration Documentation

enum ios_base::seekdir

inherited

enumerated type for the direction of relative seeks

Enumerator
beg	seek relative to the beginning of the stream
cur	seek relative to the current stream position
end	seek relative to the end of the stream

Constructor & Destructor Documentation

ofstream::ofstream	(	const char *	path,
		openmode	mode = `out`
	)

inlineexplicit

Constructor with open

Parameters

[in]	path	file to open
[in]	mode	open mode

Member Function Documentation

bool ios::bad ( ) const

inlineinherited

Returns: true if bad bit is set else false.

void ofstreamBase< FatFile >::clear ( iostate state = goodbit )

inlineinherited

Clear state and writeError

Parameters

[in] state new state for stream

void ofstreamBase< FatFile >::close ( )

inlineinherited

Close a file and force cached data and directory information to be written to the storage device.

bool ios::eof ( ) const

inlineinherited

Returns: true if end of file has been reached else false.

Warning: An empty file returns false before the first read.

Moral: eof() is only useful in combination with fail(), to find out whether EOF was the cause for failure

bool ios::fail ( ) const

inlineinherited

Returns: true if any iostate bit other than eof are set else false.

char ios_base::fill ( )

inlineinherited

Returns: fill character

char ios_base::fill ( char c )

inlineinherited

Set fill character

Parameters

[in] c new fill character

Returns: old fill character

fmtflags ios_base::flags ( ) const

inlineinherited

Returns: format flags

fmtflags ios_base::flags ( fmtflags fl )

inlineinherited

set format flags

Parameters

[in] fl new flag

Returns: old flags

ostream& ostream::flush ( )

inlineinherited

Flushes the buffer associated with this stream. The flush function calls the sync function of the associated file.

Returns: A reference to the ostream object.

bool ios::good ( ) const

inlineinherited

Returns: True if no iostate flags are set else false.

bool ofstreamBase< FatFile >::is_open ( )

inlineinherited

Returns: True if stream is open else false.

void ofstreamBase< FatFile >::open	(	const char *	path,
		openmode	mode = `out`
	)

inlineinherited

Open an ofstream

Parameters

[in]	path	file to open
[in]	mode	open mode

mode See fstream::open() for valid modes.

ios::operator const void * ( ) const

inlineinherited

Returns: null pointer if fail() is true.

bool ios::operator! ( ) const

inlineinherited

Returns: true if fail() else false.

ostream& ostream::operator<< ( ostream &(*)(ostream &str) pf )

inlineinherited

call manipulator

Parameters

[in] pf function to call

Returns: the stream

ostream& ostream::operator<< ( ios_base &(*)(ios_base &str) pf )

inlineinherited

call manipulator

Parameters

[in] pf function to call

Returns: the stream

ostream& ostream::operator<< ( bool arg )

inlineinherited

Output bool

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( const char * arg )

inlineinherited

Output string

Parameters

[in] arg string to output

Returns: the stream

ostream& ostream::operator<< ( const signed char * arg )

inlineinherited

Output string

Parameters

[in] arg string to output

Returns: the stream

ostream& ostream::operator<< ( const unsigned char * arg )

inlineinherited

Output string

Parameters

[in] arg string to output

Returns: the stream

ostream& ostream::operator<< ( char arg )

inlineinherited

Output character

Parameters

[in] arg character to output

Returns: the stream

ostream& ostream::operator<< ( signed char arg )

inlineinherited

Output character

Parameters

[in] arg character to output

Returns: the stream

ostream& ostream::operator<< ( unsigned char arg )

inlineinherited

Output character

Parameters

[in] arg character to output

Returns: the stream

ostream& ostream::operator<< ( double arg )

inlineinherited

Output double

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( float arg )

inlineinherited

Output float

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( short arg )

inlineinherited

Output signed short

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( unsigned short arg )

inlineinherited

Output unsigned short

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( int arg )

inlineinherited

Output signed int

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( unsigned int arg )

inlineinherited

Output unsigned int

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( long arg )

inlineinherited

Output signed long

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( unsigned long arg )

inlineinherited

Output unsigned long

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( const void * arg )

inlineinherited

Output pointer

Parameters

[in] arg value to output

Returns: the stream

ostream& ostream::operator<< ( const __FlashStringHelper * arg )

inlineinherited

Output a string from flash using the Arduino F() macro.

Parameters

[in] arg pointing to flash string

Returns: the stream

int ios_base::precision ( ) const

inlineinherited

Returns: precision

int ios_base::precision ( unsigned int n )

inlineinherited

set precision

Parameters

[in] n new precision

Returns: old precision

ostream& ostream::put ( char ch )

inlineinherited

Puts a character in a stream.

The unformatted output function inserts the element ch. It returns *this.

Parameters

[in] ch The character

Returns: A reference to the ostream object.

iostate ios::rdstate ( ) const

inlineinherited

Returns: The iostate flags for this file.

ostream& ostream::seekp ( pos_type pos )

inlineinherited

Set the stream position

Parameters

[in] pos The absolute position in which to move the write pointer.

Returns: Is always *this. Failure is indicated by the state of *this.

ostream& ostream::seekp	(	off_type	off,
		seekdir	way
	)

inlineinherited

Set the stream position.

Parameters

[in]	off	An offset to move the write pointer relative to way. off is a signed 32-bit int so the offset is limited to +- 2GB.
[in]	way	One of ios::beg, ios::cur, or ios::end.

Returns: Is always *this. Failure is indicated by the state of *this.

fmtflags ios_base::setf ( fmtflags fl )

inlineinherited

set format flags

Parameters

[in] fl new flags to be or'ed in

Returns: old flags

fmtflags ios_base::setf	(	fmtflags	fl,
		fmtflags	mask
	)

inlineinherited

modify format flags

Parameters

[in]	mask	flags to be removed
[in]	fl	flags to be set after mask bits have been cleared

Returns: old flags

void ios::setstate ( iostate state )

inlineinherited

Set iostate bits.

Parameters

[in] state Bitts to set.

pos_type ostream::tellp ( )

inlineinherited

Returns: the stream position

void ios_base::unsetf ( fmtflags fl )

inlineinherited

clear format flags

Parameters

[in] fl flags to be cleared

Returns: old flags

unsigned ios_base::width ( )

inlineinherited

Returns: width

unsigned ios_base::width ( unsigned n )

inlineinherited

set width

Parameters

[in] n new width

Returns: old width

Member Data Documentation

const fmtflags ios_base::adjustfield = left | right | internal

staticinherited

mask for adjustfield

const openmode ios_base::app = 0X4

staticinherited

seek to end before each write

const openmode ios_base::ate = 0X8

staticinherited

open and seek to end immediately after opening

const iostate ios_base::badbit = 0X01

staticinherited

iostate bad bit for a nonrecoverable error.

const fmtflags ios_base::basefield = dec | hex | oct

staticinherited

mask for basefield

const openmode ios_base::binary = 0X10

staticinherited

perform input and output in binary mode (as opposed to text mode)

const fmtflags ios_base::boolalpha = 0x0100

staticinherited

use strings true/false for bool

const fmtflags ios_base::dec = 0x0008

staticinherited

base 10 flag

const iostate ios_base::eofbit = 0x02

staticinherited

iostate bit for end of file reached

const iostate ios_base::failbit = 0X04

staticinherited

iostate fail bit for nonfatal error

const iostate ios_base::goodbit = 0x00

staticinherited

iostate for no flags

const fmtflags ios_base::hex = 0x0010

staticinherited

base 16 flag

const openmode ios_base::in = 0X20

staticinherited

open for input

const fmtflags ios_base::internal = 0x0004

staticinherited

fill between sign/base prefix and number

const fmtflags ios_base::left = 0x0001

staticinherited

left adjust fields

const fmtflags ios_base::oct = 0x0020

staticinherited

base 8 flag

const openmode ios_base::out = 0X40

staticinherited

open for output

const fmtflags ios_base::right = 0x0002

staticinherited

right adjust fields

const fmtflags ios_base::showbase = 0x0200

staticinherited

use prefix 0X for hex and 0 for oct

const fmtflags ios_base::showpoint = 0x0400

staticinherited

always show '.' for floating numbers

const fmtflags ios_base::showpos = 0x0800

staticinherited

show + sign for nonnegative numbers

const fmtflags ios_base::skipws = 0x1000

staticinherited

skip initial white space

const openmode ios_base::trunc = 0X80

staticinherited

truncate an existing stream when opening

const fmtflags ios_base::uppercase = 0x4000

staticinherited

use uppercase letters in number representations

The documentation for this class was generated from the following file:

ArduinoSdFs/libraries/SdFs/src/iostream/fstream.h

Public Types

Public Member Functions

Static Public Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation