ios_base Class Reference

Base class for all streams. More...

#include <ios.h>

Inheritance diagram for ios_base:

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
char	fill ()
char	fill (char c)
fmtflags	flags () const
fmtflags	flags (fmtflags fl)
int	precision () const
int	precision (unsigned int n)
fmtflags	setf (fmtflags fl)
fmtflags	setf (fmtflags fl, fmtflags mask)
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

Base class for all streams.

Member Typedef Documentation

typedef unsigned int ios_base::fmtflags

type for format flags

typedef unsigned char ios_base::iostate

typedef for iostate bitmask

typedef int32_t ios_base::off_type

type for relative seek offset

typedef uint8_t ios_base::openmode

typedef for iostream open mode

typedef uint32_t ios_base::pos_type

type for absolute seek position

typedef uint32_t ios_base::streamsize

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

Member Enumeration Documentation

enum ios_base::seekdir

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

Member Function Documentation

char ios_base::fill ( )

inline

Returns

fill character

char ios_base::fill ( char  c )

inline

Set fill character

Parameters

[in]

c

new fill character

Returns

old fill character

fmtflags ios_base::flags ( ) const

inline

Returns

format flags

fmtflags ios_base::flags ( fmtflags  fl )

inline

set format flags

Parameters

[in]

fl

new flag

Returns

old flags

int ios_base::precision ( ) const

inline

Returns

precision

int ios_base::precision ( unsigned int  n )

inline

set precision

Parameters

[in]

n

new precision

Returns

old precision

fmtflags ios_base::setf ( fmtflags  fl )

inline

set format flags

Parameters

[in]

fl

new flags to be or'ed in

Returns

old flags

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

inline

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_base::unsetf ( fmtflags  fl )

inline

clear format flags

Parameters

[in]

fl

flags to be cleared

Returns

old flags

unsigned ios_base::width ( )

inline

Returns

width

unsigned ios_base::width ( unsigned  n )

inline

set width

Parameters

[in]

n

new width

Returns

old width

Member Data Documentation

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

static

mask for adjustfield

const openmode ios_base::app = 0X4

static

seek to end before each write

const openmode ios_base::ate = 0X8

static

open and seek to end immediately after opening

const iostate ios_base::badbit = 0X01

static

iostate bad bit for a nonrecoverable error.

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

static

mask for basefield

const openmode ios_base::binary = 0X10

static

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

const fmtflags ios_base::boolalpha = 0x0100

static

use strings true/false for bool

const fmtflags ios_base::dec = 0x0008

static

base 10 flag

const iostate ios_base::eofbit = 0x02

static

iostate bit for end of file reached

const iostate ios_base::failbit = 0X04

static

iostate fail bit for nonfatal error

const iostate ios_base::goodbit = 0x00

static

iostate for no flags

const fmtflags ios_base::hex = 0x0010

static

base 16 flag

const openmode ios_base::in = 0X20

static

open for input

const fmtflags ios_base::internal = 0x0004

static

fill between sign/base prefix and number

const fmtflags ios_base::left = 0x0001

static

left adjust fields

const fmtflags ios_base::oct = 0x0020

static

base 8 flag

const openmode ios_base::out = 0X40

static

open for output

const fmtflags ios_base::right = 0x0002

static

right adjust fields

const fmtflags ios_base::showbase = 0x0200

static

use prefix 0X for hex and 0 for oct

const fmtflags ios_base::showpoint = 0x0400

static

always show '.' for floating numbers

const fmtflags ios_base::showpos = 0x0800

static

show + sign for nonnegative numbers

const fmtflags ios_base::skipws = 0x1000

static

skip initial white space

const openmode ios_base::trunc = 0X80

static

truncate an existing stream when opening

const fmtflags ios_base::uppercase = 0x4000

static

use uppercase letters in number representations

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

• Arduino/libraries/SdFat/src/FatLib/ios.h