format a char string More...

#include <bufstream.h>

Inheritance diagram for obufstream:

Collaboration diagram for obufstream:

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
char *	buf ()
void	clear (iostate state=goodbit)
bool	eof () const
bool	fail () const
char	fill ()
char	fill (char c)
fmtflags	flags () const
fmtflags	flags (fmtflags fl)
ostream &	flush ()
bool	good () const
void	init (char *buf, size_t size)
size_t	length ()
	obufstream (char *buf, size_t size)
	obufstream ()
	operator const void * () const
bool	operator! () const
ostream &	operator<< (bool arg)
ostream &	operator<< (float arg)
ostream &	operator<< (short arg)
ostream &	operator<< (double arg)
ostream &	operator<< (unsigned short arg)
ostream &	operator<< (const char *arg)
ostream &	operator<< (int arg)
ostream &	operator<< (signed char arg)
ostream &	operator<< (unsigned int arg)
ostream &	operator<< (const signed char *arg)
ostream &	operator<< (long arg)
ostream &	operator<< (const unsigned char *arg)
ostream &	operator<< (unsigned long arg)
ostream &	operator<< (const void *arg)
ostream &	operator<< (char arg)
ostream &	operator<< (pgm arg)
ostream &	operator<< (const __FlashStringHelper *arg)
ostream &	operator<< (ostream &(*pf)(ostream &str))
ostream &	operator<< (unsigned char arg)
ostream &	operator<< (ios_base &(*pf)(ios_base &str))
int	precision () const
int	precision (unsigned int n)
ostream &	put (char ch)
iostate	rdstate () const
ostream &	seekp (off_type off, seekdir way)
ostream &	seekp (pos_type pos)
fmtflags	setf (fmtflags fl, fmtflags mask)
fmtflags	setf (fmtflags fl)
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
Protected Member Functions
uint8_t	flagsToBase ()

Detailed Description

format a char string

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

obufstream::obufstream ( ) [inline]

constructor

obufstream::obufstream	(	char *	buf,
		size_t	size
	)		`[inline]`

Constructor

Parameters:

[in]	buf	buffer for formatted string
[in]	size	buffer size

Member Function Documentation

bool ios::bad ( ) const [inline, inherited]

Returns:: true if bad bit is set else false.

char* obufstream::buf ( ) [inline]

Returns:: a pointer to the buffer

void ios::clear ( iostate state = goodbit ) [inline, inherited]

Clear iostate bits.

Parameters:

[in] state The flags you want to set after clearing all flags.

Reimplemented in fstream, and ofstream.

bool ios::eof ( ) const [inline, inherited]

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 [inline, inherited]

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

char ios_base::fill ( ) [inline, inherited]

Returns:: fill character

char ios_base::fill ( char c ) [inline, inherited]

Set fill character

Parameters:

[in] c new fill character

Returns:: old fill character

fmtflags ios_base::flags ( ) const [inline, inherited]

Returns:: format flags

fmtflags ios_base::flags ( fmtflags fl ) [inline, inherited]

set format flags

Parameters:

[in] fl new flag

Returns:: old flags

uint8_t ios_base::flagsToBase ( ) [inline, protected, inherited]

Returns:: current number base

ostream& ostream::flush ( ) [inline, inherited]

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 [inline, inherited]

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

void obufstream::init	(	char *	buf,
		size_t	size
	)		`[inline]`

Initialize an obufstream

Parameters:

[in]	buf	buffer for formatted string
[in]	size	buffer size

size_t obufstream::length ( ) [inline]

Returns:: the length of the formatted string

ios::operator const void * ( ) const [inline, inherited]

Returns:: null pointer if fail() is true.

bool ios::operator! ( ) const [inline, inherited]

Returns:: true if fail() else false.

ostream& ostream::operator<< ( ostream &(*)(ostream &str) pf ) [inline, inherited]

call manipulator

Parameters:

[in] pf function to call

Returns:: the stream

ostream& ostream::operator<< ( unsigned short arg ) [inline, inherited]

Output unsigned short

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( const signed char * arg ) [inline, inherited]

Output string

Parameters:

[in] arg string to output

Returns:: the stream

ostream& ostream::operator<< ( int arg ) [inline, inherited]

Output signed int

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( const unsigned char * arg ) [inline, inherited]

Output string

Parameters:

[in] arg string to output

Returns:: the stream

ostream& ostream::operator<< ( unsigned int arg ) [inline, inherited]

Output unsigned int

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( long arg ) [inline, inherited]

Output signed long

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( ios_base &(*)(ios_base &str) pf ) [inline, inherited]

call manipulator

Parameters:

[in] pf function to call

Returns:: the stream

ostream& ostream::operator<< ( unsigned long arg ) [inline, inherited]

Output unsigned long

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( char arg ) [inline, inherited]

Output character

Parameters:

[in] arg character to output

Returns:: the stream

ostream& ostream::operator<< ( const void * arg ) [inline, inherited]

Output pointer

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( signed char arg ) [inline, inherited]

Output character

Parameters:

[in] arg character to output

Returns:: the stream

ostream& ostream::operator<< ( pgm arg ) [inline, inherited]

Output a string from flash using the pstr() macro

Parameters:

[in] arg pgm struct pointing to string

Returns:: the stream

ostream& ostream::operator<< ( const __FlashStringHelper * arg ) [inline, inherited]

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

Parameters:

[in] arg pointing to flash string

Returns:: the stream

ostream& ostream::operator<< ( bool arg ) [inline, inherited]

Output bool

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( unsigned char arg ) [inline, inherited]

Output character

Parameters:

[in] arg character to output

Returns:: the stream

ostream& ostream::operator<< ( double arg ) [inline, inherited]

Output double

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( const char * arg ) [inline, inherited]

Output string

Parameters:

[in] arg string to output

Returns:: the stream

ostream& ostream::operator<< ( float arg ) [inline, inherited]

Output float

Parameters:

[in] arg value to output

Returns:: the stream

ostream& ostream::operator<< ( short arg ) [inline, inherited]

Output signed short

Parameters:

[in] arg value to output

Returns:: the stream

int ios_base::precision ( ) const [inline, inherited]

Returns:: precision

int ios_base::precision ( unsigned int n ) [inline, inherited]

set precision

Parameters:

[in] n new precision

Returns:: old precision

ostream& ostream::put ( char ch ) [inline, inherited]

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 [inline, inherited]

Returns:: The iostate flags for this file.

ostream& ostream::seekp	(	off_type	off,
		seekdir	way
	)		`[inline, inherited]`

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.

ostream& ostream::seekp ( pos_type pos ) [inline, inherited]

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.

fmtflags ios_base::setf	(	fmtflags	fl,
		fmtflags	mask
	)		`[inline, inherited]`

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

fmtflags ios_base::setf ( fmtflags fl ) [inline, inherited]

set format flags

Parameters:

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

Returns:: old flags

void ios::setstate ( iostate state ) [inline, inherited]

Set iostate bits.

Parameters:

[in] state Bitts to set.

pos_type ostream::tellp ( ) [inline, inherited]

Returns:: the stream position

void ios_base::unsetf ( fmtflags fl ) [inline, inherited]

clear format flags

Parameters:

[in] fl flags to be cleared

Returns:: old flags

unsigned ios_base::width ( unsigned n ) [inline, inherited]

set width

Parameters:

[in] n new width

Returns:: old width

unsigned ios_base::width ( ) [inline, inherited]

Returns:: width

Member Data Documentation

const fmtflags ios_base::adjustfield = left | right | internal [static, inherited]

mask for adjustfield

const openmode ios_base::app = 0X4 [static, inherited]

seek to end before each write

const openmode ios_base::ate = 0X8 [static, inherited]

open and seek to end immediately after opening

const iostate ios_base::badbit = 0X01 [static, inherited]

iostate bad bit for a nonrecoverable error.

const fmtflags ios_base::basefield = dec | hex | oct [static, inherited]

mask for basefield

const openmode ios_base::binary = 0X10 [static, inherited]

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

const fmtflags ios_base::boolalpha = 0x0100 [static, inherited]

use strings true/false for bool

const fmtflags ios_base::dec = 0x0008 [static, inherited]

base 10 flag

const iostate ios_base::eofbit = 0x02 [static, inherited]

iostate bit for end of file reached

const iostate ios_base::failbit = 0X04 [static, inherited]

iostate fail bit for nonfatal error

const iostate ios_base::goodbit = 0x00 [static, inherited]

iostate for no flags

const fmtflags ios_base::hex = 0x0010 [static, inherited]

base 16 flag

const openmode ios_base::in = 0X20 [static, inherited]

open for input

const fmtflags ios_base::internal = 0x0004 [static, inherited]

fill between sign/base prefix and number

const fmtflags ios_base::left = 0x0001 [static, inherited]

left adjust fields

const fmtflags ios_base::oct = 0x0020 [static, inherited]

base 8 flag

const openmode ios_base::out = 0X40 [static, inherited]

open for output

const fmtflags ios_base::right = 0x0002 [static, inherited]

right adjust fields

const fmtflags ios_base::showbase = 0x0200 [static, inherited]

use prefix 0X for hex and 0 for oct

const fmtflags ios_base::showpoint = 0x0400 [static, inherited]

always show '.' for floating numbers

const fmtflags ios_base::showpos = 0x0800 [static, inherited]

show + sign for nonnegative numbers

const fmtflags ios_base::skipws = 0x1000 [static, inherited]

skip initial white space

const openmode ios_base::trunc = 0X80 [static, inherited]

truncate an existing stream when opening

const fmtflags ios_base::uppercase = 0x4000 [static, inherited]

use uppercase letters in number representations

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

Arduino/libraries/SdFat/bufstream.h

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation