Error and state information for all streams. More...

#include <ios.h>

Inheritance diagram for ios:

[legend]

Collaboration diagram for ios:

Public Types
typedef unsigned int	fmtflags

typedef unsigned char	iostate

typedef int64_t	off_type

typedef uint8_t	openmode

typedef uint64_t	pos_type

enum	seekdir { beg, cur, end }

typedef uint64_t	streamsize

Public Member Functions
bool	bad () const

void	clear (iostate state=goodbit)

bool	eof () const

bool	fail () const

char	fill ()

char	fill (char c)

fmtflags	flags () const

fmtflags	flags (fmtflags fl)

bool	good () const

	ios ()

	operator bool () const

	operator const void * () const

bool	operator! () const

int	precision () const

int	precision (unsigned int n)

iostate	rdstate () const

fmtflags	setf (fmtflags fl)

fmtflags	setf (fmtflags fl, fmtflags mask)

void	setstate (iostate state)

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

Error and state information for all streams.

Member Typedef Documentation

◆ fmtflags

typedef unsigned int ios_base::fmtflags

inherited

type for format flags

◆ iostate

typedef unsigned char ios_base::iostate

inherited

typedef for iostate bitmask

◆ off_type

typedef int64_t ios_base::off_type

inherited

type for relative seek offset

◆ openmode

typedef uint8_t ios_base::openmode

inherited

typedef for iostream open mode

◆ pos_type

typedef uint64_t ios_base::pos_type

inherited

type for absolute seek position

◆ streamsize

typedef uint64_t ios_base::streamsize

inherited

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

Member Enumeration Documentation

◆ seekdir

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

◆ ios()

ios::ios ( )

inline

Create ios with no error flags set

Member Function Documentation

◆ bad()

bool ios::bad ( ) const

inline

Returns: true if bad bit is set else false.

◆ clear()

void ios::clear ( iostate state = goodbit )

inline

Clear iostate bits.

Parameters

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

◆ eof()

bool ios::eof ( ) const

inline

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

◆ fail()

bool ios::fail ( ) const

inline

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

◆ fill() [1/2]

char ios_base::fill ( )

inlineinherited

Returns: fill character

◆ fill() [2/2]

char ios_base::fill ( char c )

inlineinherited

Set fill character

Parameters

[in] c new fill character

Returns: old fill character

◆ flags() [1/2]

fmtflags ios_base::flags ( ) const

inlineinherited

Returns: format flags

◆ flags() [2/2]

fmtflags ios_base::flags ( fmtflags fl )

inlineinherited

set format flags

Parameters

[in] fl new flag

Returns: old flags

◆ good()

bool ios::good ( ) const

inline

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

◆ operator bool()

ios::operator bool ( ) const

inlineexplicit

Returns: false if fail() else true.

◆ operator const void *()

ios::operator const void * ( ) const

inline

Returns: null pointer if fail() is true.

◆ operator!()

bool ios::operator! ( ) const

inline

Returns: true if fail() else false.

◆ precision() [1/2]

int ios_base::precision ( ) const

inlineinherited

Returns: precision

◆ precision() [2/2]

int ios_base::precision ( unsigned int n )

inlineinherited

set precision

Parameters

[in] n new precision

Returns: old precision

◆ rdstate()

iostate ios::rdstate ( ) const

inline

Returns: The iostate flags for this file.

◆ setf() [1/2]

fmtflags ios_base::setf ( fmtflags fl )

inlineinherited

set format flags

Parameters

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

Returns: old flags

◆ setf() [2/2]

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

◆ setstate()

void ios::setstate ( iostate state )

inline

Set iostate bits.

Parameters

[in] state Bitts to set.

◆ unsetf()

void ios_base::unsetf ( fmtflags fl )

inlineinherited

clear format flags

Parameters

[in] fl flags to be cleared

Returns: old flags

◆ width() [1/2]

unsigned ios_base::width ( )

inlineinherited

Returns: width

◆ width() [2/2]

unsigned ios_base::width ( unsigned n )

inlineinherited

set width

Parameters

[in] n new width

Returns: old width

Member Data Documentation

◆ adjustfield

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

staticinherited

mask for adjustfield

◆ app

const openmode ios_base::app = 0X4

staticinherited

seek to end before each write

◆ ate

const openmode ios_base::ate = 0X8

staticinherited

open and seek to end immediately after opening

◆ badbit

const iostate ios_base::badbit = 0X01

staticinherited

iostate bad bit for a nonrecoverable error.

◆ basefield

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

staticinherited

mask for basefield

◆ binary

const openmode ios_base::binary = 0X10

staticinherited

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

◆ boolalpha

const fmtflags ios_base::boolalpha = 0x0100

staticinherited

use strings true/false for bool

◆ dec

const fmtflags ios_base::dec = 0x0008

staticinherited

base 10 flag

◆ eofbit

const iostate ios_base::eofbit = 0x02

staticinherited

iostate bit for end of file reached

◆ failbit

const iostate ios_base::failbit = 0X04

staticinherited

iostate fail bit for nonfatal error

◆ goodbit

const iostate ios_base::goodbit = 0x00

staticinherited

iostate for no flags

◆ hex

const fmtflags ios_base::hex = 0x0010

staticinherited

base 16 flag

◆ in

const openmode ios_base::in = 0X20

staticinherited

open for input

◆ internal

const fmtflags ios_base::internal = 0x0004

staticinherited

fill between sign/base prefix and number

◆ left

const fmtflags ios_base::left = 0x0001

staticinherited

left adjust fields

◆ oct

const fmtflags ios_base::oct = 0x0020

staticinherited

base 8 flag

◆ out

const openmode ios_base::out = 0X40

staticinherited

open for output

◆ right

const fmtflags ios_base::right = 0x0002

staticinherited

right adjust fields

◆ showbase

const fmtflags ios_base::showbase = 0x0200

staticinherited

use prefix 0X for hex and 0 for oct

◆ showpoint

const fmtflags ios_base::showpoint = 0x0400

staticinherited

always show '.' for floating numbers

◆ showpos

const fmtflags ios_base::showpos = 0x0800

staticinherited

show + sign for nonnegative numbers

◆ skipws

const fmtflags ios_base::skipws = 0x1000

staticinherited

skip initial white space

◆ trunc

const openmode ios_base::trunc = 0X80

staticinherited

truncate an existing stream when opening

◆ uppercase

const fmtflags ios_base::uppercase = 0x4000

staticinherited

use uppercase letters in number representations

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

ArduinoSdFat/libraries/SdFat/src/iostream/ios.h

Public Types

Public Member Functions

Static Public Attributes

Detailed Description

Member Typedef Documentation

◆ fmtflags

◆ iostate

◆ off_type

◆ openmode

◆ pos_type

◆ streamsize

Member Enumeration Documentation

◆ seekdir

Constructor & Destructor Documentation

◆ ios()

Member Function Documentation

◆ bad()

◆ clear()

◆ eof()

◆ fail()

◆ fill() [1/2]

◆ fill() [2/2]

◆ flags() [1/2]

◆ flags() [2/2]

◆ good()

◆ operator bool()

◆ operator const void *()

◆ operator!()

◆ precision() [1/2]

◆ precision() [2/2]

◆ rdstate()

◆ setf() [1/2]

◆ setf() [2/2]

◆ setstate()

◆ unsetf()

◆ width() [1/2]

◆ width() [2/2]

Member Data Documentation

◆ adjustfield

◆ app

◆ ate

◆ badbit

◆ basefield

◆ binary

◆ boolalpha

◆ dec

◆ eofbit

◆ failbit

◆ goodbit

◆ hex

◆ in

◆ internal

◆ left

◆ oct

◆ out

◆ right

◆ showbase

◆ showpoint

◆ showpos

◆ skipws

◆ trunc

◆ uppercase