std::ios_base

std::ios_base Class Reference

The base of the I/O class hierarchy. More...

#include <ios_base.h>

Inheritance diagram for std::ios_base:

std::basic_ios< _CharT, _Traits > std::basic_ios< char, _Traits > std::basic_istream< _CharT, _Traits > std::basic_ostream< _CharT, _Traits > std::basic_istream< char > std::basic_istream< char, _Traits > std::basic_ostream< char > std::basic_ostream< char, _Traits > std::basic_ifstream< _CharT, _Traits > std::basic_iostream< _CharT, _Traits > std::basic_istringstream< _CharT, _Traits, _Alloc > std::basic_iostream< _CharT, _Traits > std::basic_ofstream< _CharT, _Traits > std::basic_ostringstream< _CharT, _Traits, _Alloc > std::istrstream std::basic_iostream< char > std::ostrstream std::basic_iostream< char > List of all members.

Public Types

typedef _Ios_Fmtflags fmtflags
 This is a bitmask type.
typedef _Ios_Iostate iostate
 This is a bitmask type.
typedef _Ios_Openmode openmode
 This is a bitmask type.
typedef _Ios_Seekdir seekdir
 This is an enumerated type.
typedef int io_state
typedef int open_mode
typedef int seek_dir
typedef std::streampos streampos
typedef std::streamoff streamoff
typedef void(*) event_callback (event, ios_base &, int)
 The type of an event callback function.
 erase_event
 imbue_event
 copyfmt_event
enum  event { erase_event, imbue_event, copyfmt_event }
 The set of events that may be passed to an event callback. More...

Public Member Functions

void register_callback (event_callback __fn, int __index)
 Add the callback __fn with parameter __index.
fmtflags flags () const
 Access to format flags.
fmtflags flags (fmtflags __fmtfl)
 Setting new format flags all at once.
fmtflags setf (fmtflags __fmtfl)
 Setting new format flags.
fmtflags setf (fmtflags __fmtfl, fmtflags __mask)
 Setting new format flags.
void unsetf (fmtflags __mask)
 Clearing format flags.
streamsize precision () const
 Flags access.
streamsize precision (streamsize __prec)
 Changing flags.
streamsize width () const
 Flags access.
streamsize width (streamsize __wide)
 Changing flags.
locale imbue (const locale &__loc)
 Setting a new locale.
locale getloc () const
 Locale access.
const locale & _M_getloc () const
 Locale access.
long & iword (int __ix)
 Access to integer array.
void *& pword (int __ix)
 Access to void pointer array.
virtual ~ios_base ()

Static Public Member Functions

static bool sync_with_stdio (bool __sync=true)
 Interaction with the standard C I/O objects.
static int xalloc () throw ()
 Access to unique indices.

Static Public Attributes

static const fmtflags boolalpha = _S_boolalpha
 Insert/extract bool in alphabetic rather than numeric format.
static const fmtflags dec = _S_dec
 Converts integer input or generates integer output in decimal base.
static const fmtflags fixed = _S_fixed
 Generate floating-point output in fixed-point notation.
static const fmtflags hex = _S_hex
 Converts integer input or generates integer output in hexadecimal base.
static const fmtflags internal = _S_internal
static const fmtflags left = _S_left
static const fmtflags oct = _S_oct
 Converts integer input or generates integer output in octal base.
static const fmtflags right = _S_right
static const fmtflags scientific = _S_scientific
 Generates floating-point output in scientific notation.
static const fmtflags showbase = _S_showbase
static const fmtflags showpoint = _S_showpoint
static const fmtflags showpos = _S_showpos
 Generates a + sign in non-negative generated numeric output.
static const fmtflags skipws = _S_skipws
 Skips leading white space before certain input operations.
static const fmtflags unitbuf = _S_unitbuf
 Flushes output after each output operation.
static const fmtflags uppercase = _S_uppercase
static const fmtflags adjustfield = _S_adjustfield
 A mask of left|right|internal. Useful for the 2-arg form of setf.
static const fmtflags basefield = _S_basefield
 A mask of dec|oct|hex. Useful for the 2-arg form of setf.
static const fmtflags floatfield = _S_floatfield
 A mask of scientific|fixed. Useful for the 2-arg form of setf.
static const iostate badbit = _S_badbit
static const iostate eofbit = _S_eofbit
 Indicates that an input operation reached the end of an input sequence.
static const iostate failbit = _S_failbit
static const iostate goodbit = _S_goodbit
 Indicates all is well.
static const openmode app = _S_app
 Seek to end before each write.
static const openmode ate = _S_ate
 Open and seek to end immediately after opening.
static const openmode binary = _S_bin
static const openmode in = _S_in
 Open for input. Default for ifstream and fstream.
static const openmode out = _S_out
 Open for output. Default for ofstream and fstream.
static const openmode trunc = _S_trunc
 Open for input. Default for ofstream.
static const seekdir beg = _S_beg
 Request a seek relative to the beginning of the stream.
static const seekdir cur = _S_cur
 Request a seek relative to the current position within the sequence.
static const seekdir end = _S_end
 Request a seek relative to the current end of the sequence.

Protected Types

 _S_local_word_size = 8
enum  { _S_local_word_size = 8 }

Protected Member Functions

void _M_call_callbacks (event __ev) throw ()
void _M_dispose_callbacks (void)
_Words & _M_grow_words (int __index, bool __iword)
void _M_init ()
 ios_base ()

Protected Attributes

_Callback_list * _M_callbacks
_Words _M_word_zero
_Words _M_local_word [_S_local_word_size]
int _M_word_size
_Words * _M_word
locale _M_ios_locale
streamsize _M_precision
streamsize _M_width
fmtflags _M_flags
iostate _M_exception
iostate _M_streambuf_state

Private Member Functions

 ios_base (const ios_base &)
ios_base & operator= (const ios_base &)

Classes

struct  _Callback_list
struct  _Words
class  failure
 These are thrown to indicate problems. Doc me. More...
class  Init

Detailed Description

The base of the I/O class hierarchy.

This class defines everything that can be defined about I/O that does not depend on the type of characters being input or output. Most people will only see ios_base when they need to specify the full name of the various I/O flags (e.g., the openmodes).

Definition at line 201 of file ios_base.h.

Member Typedef Documentation

typedef void(*) std::ios_base::event_callback(event, ios_base &, int)

The type of an event callback function.

Parameters:
event One of the members of the event enum.
ios_base Reference to the ios_base object.
int The integer provided when the callback was registered.
Event callbacks are user defined functions that get called during several ios_base and basic_ios functions, specifically imbue(), copyfmt(), and ~ios().

Definition at line 435 of file ios_base.h.

typedef _Ios_Fmtflags std::ios_base::fmtflags

This is a bitmask type.

"_Ios_Fmtflags" is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type fmtflags are:

Definition at line 253 of file ios_base.h.

typedef int std::ios_base::io_state

Definition at line 404 of file ios_base.h.

typedef _Ios_Iostate std::ios_base::iostate

This is a bitmask type.

"_Ios_Iostate" is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type iostate are:

Definition at line 328 of file ios_base.h.

typedef int std::ios_base::open_mode

Definition at line 405 of file ios_base.h.

typedef _Ios_Openmode std::ios_base::openmode

This is a bitmask type.

"_Ios_Openmode" is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type openmode are:

Definition at line 359 of file ios_base.h.

typedef int std::ios_base::seek_dir

Definition at line 406 of file ios_base.h.

typedef _Ios_Seekdir std::ios_base::seekdir

This is an enumerated type.

"_Ios_Seekdir" is implementation-defined. Defined values of type seekdir are:

Definition at line 392 of file ios_base.h.

typedef std::streamoff std::ios_base::streamoff

Definition at line 409 of file ios_base.h.

typedef std::streampos std::ios_base::streampos

Definition at line 408 of file ios_base.h.

Member Enumeration Documentation

anonymous enum [protected]

Enumerator:
_S_local_word_size 

Definition at line 508 of file ios_base.h.

enum std::ios_base::event

The set of events that may be passed to an event callback.

erase_event is used during ~ios() and copyfmt(). imbue_event is used during imbue(). copyfmt_event is used during copyfmt().

Enumerator:
erase_event 
imbue_event 
copyfmt_event 

Definition at line 418 of file ios_base.h.

Constructor & Destructor Documentation

virtual std::ios_base::~ios_base (  )  [virtual]

Invokes each callback with erase_event. Destroys local storage.

Note that the ios_base object for the standard streams never gets destroyed. As a result, any callbacks registered with the standard streams will not get invoked with erase_event (unless copyfmt is used).

std::ios_base::ios_base (  )  [protected]

std::ios_base::ios_base ( const ios_base &   )  [private]

Member Function Documentation

void std::ios_base::_M_call_callbacks ( event  __ev  )  throw () [protected]

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt().

void std::ios_base::_M_dispose_callbacks ( void   )  [protected]

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt().

const locale& std::ios_base::_M_getloc (  )  const [inline]

Locale access.

Returns:
A reference to the current locale.
Like getloc above, but returns a reference instead of generating a copy.

Definition at line 700 of file ios_base.h.

References _M_ios_locale.

Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_float(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::time_get< _CharT, _InIter >::_M_extract_name(), std::time_get< _CharT, _InIter >::_M_extract_num(), std::time_get< _CharT, _InIter >::_M_extract_via_format(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_float(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::__pad< _CharT, _Traits >::_S_pad(), std::money_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_date(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_time(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::time_put< _CharT, _OutIter >::do_put(), std::num_put< _CharT, _OutIter >::do_put(), and std::time_put< _CharT, _OutIter >::put().

_Words& std::ios_base::_M_grow_words ( int  __index,
bool  __iword 
) [protected]

Referenced by iword(), and pword().

void std::ios_base::_M_init (  )  [protected]

Referenced by std::basic_ios< _CharT, _Traits >::init().

fmtflags std::ios_base::flags ( fmtflags  __fmtfl  )  [inline]

Setting new format flags all at once.

Parameters:
fmtfl The new flags to set.
Returns:
The previous format control flags.
This function overwrites all the format flags with fmtfl.

Definition at line 558 of file ios_base.h.

References _M_flags.

fmtflags std::ios_base::flags (  )  const [inline]

Access to format flags.

Returns:
The format control flags for both input and output.

Definition at line 548 of file ios_base.h.

References _M_flags.

Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_float(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::__pad< _CharT, _Traits >::_S_pad(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), __gnu_cxx::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator<<(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().

locale std::ios_base::getloc (  )  const [inline]

Locale access.

Returns:
A copy of the current locale.
If imbue(loc) has previously been called, then this function returns loc. Otherwise, it returns a copy of std::locale(), the global C++ locale.

Definition at line 690 of file ios_base.h.

References _M_ios_locale.

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::money_put< _CharT, _OutIter >::do_put(), std::operator>>(), and std::ws().

locale std::ios_base::imbue ( const locale &  __loc  ) 

Setting a new locale.

Parameters:
loc The new locale.
Returns:
The previous locale.
Sets the new locale for this stream, and then invokes each callback with imbue_event.

Reimplemented in std::basic_ios< _CharT, _Traits >, and std::basic_ios< char, _Traits >.

Referenced by std::basic_ios< _CharT, _Traits >::imbue().

long& std::ios_base::iword ( int  __ix  )  [inline]

Access to integer array.

Parameters:
__ix Index into the array.
Returns:
A reference to an integer associated with the index.
The iword function provides access to an array of integers that can be used for any purpose. The array grows as required to hold the supplied index. All integers in the array are initialized to 0.

The implementation reserves several indices. You should use xalloc to obtain an index that is safe to use. Also note that since the array can grow dynamically, it is not safe to hold onto the reference.

Definition at line 734 of file ios_base.h.

References _M_grow_words(), std::ios_base::_Words::_M_iword, _M_word, and _M_word_size.

ios_base& std::ios_base::operator= ( const ios_base &   )  [private]

streamsize std::ios_base::precision ( streamsize  __prec  )  [inline]

Changing flags.

Parameters:
prec The new precision value.
Returns:
The previous value of precision().

Definition at line 626 of file ios_base.h.

References _M_precision.

streamsize std::ios_base::precision (  )  const [inline]

Flags access.

Returns:
The precision to generate on certain output operations.

Definition at line 618 of file ios_base.h.

References _M_precision.

Referenced by std::num_put< _CharT, _OutIter >::_M_insert_float(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::operator<<(), and std::operator>>().

void*& std::ios_base::pword ( int  __ix  )  [inline]

Access to void pointer array.

Parameters:
__ix Index into the array.
Returns:
A reference to a void* associated with the index.
The pword function provides access to an array of pointers that can be used for any purpose. The array grows as required to hold the supplied index. All pointers in the array are initialized to 0.

The implementation reserves several indices. You should use xalloc to obtain an index that is safe to use. Also note that since the array can grow dynamically, it is not safe to hold onto the reference.

Definition at line 755 of file ios_base.h.

References _M_grow_words(), std::ios_base::_Words::_M_pword, _M_word, and _M_word_size.

void std::ios_base::register_callback ( event_callback  __fn,
int  __index 
)

Add the callback __fn with parameter __index.

Parameters:
__fn The function to add.
__index The integer to pass to the function when invoked.
Registers a function as an event callback with an integer parameter to be passed to the function when invoked. Multiple copies of the function are allowed. If there are multiple callbacks, they are invoked in the order they were registered.

fmtflags std::ios_base::setf ( fmtflags  __fmtfl,
fmtflags  __mask 
) [inline]

Setting new format flags.

Parameters:
fmtfl Additional flags to set.
mask The flags mask for fmtfl.
Returns:
The previous format control flags.
This function clears mask in the format flags, then sets fmtfl & mask. An example mask is ios_base::adjustfield.

Definition at line 591 of file ios_base.h.

References _M_flags.

fmtflags std::ios_base::setf ( fmtflags  __fmtfl  )  [inline]

Setting new format flags.

Parameters:
fmtfl Additional flags to set.
Returns:
The previous format control flags.
This function sets additional flags in format control. Flags that were previously set remain set.

Definition at line 574 of file ios_base.h.

References _M_flags.

Referenced by std::boolalpha(), std::dec(), std::fixed(), std::hex(), std::internal(), std::left(), std::oct(), std::operator<<(), std::operator>>(), std::right(), std::scientific(), std::showbase(), std::showpoint(), std::showpos(), std::skipws(), std::unitbuf(), and std::uppercase().

static bool std::ios_base::sync_with_stdio ( bool  __sync = true  )  [static]

Interaction with the standard C I/O objects.

Parameters:
sync Whether to synchronize or not.
Returns:
True if the standard streams were previously synchronized.
The synchronization referred to is only that between the standard C facilities (e.g., stdout) and the standard C++ objects (e.g., cout). User-declared streams are unaffected. See http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#8 for more.

void std::ios_base::unsetf ( fmtflags  __mask  )  [inline]

Clearing format flags.

Parameters:
mask The flags to unset.
This function clears mask in the format flags.

Definition at line 606 of file ios_base.h.

References _M_flags.

Referenced by std::noboolalpha(), std::noshowbase(), std::noshowpoint(), std::noshowpos(), std::noskipws(), std::nounitbuf(), and std::nouppercase().

streamsize std::ios_base::width ( streamsize  __wide  )  [inline]

Changing flags.

Parameters:
wide The new width value.
Returns:
The previous value of width().

Definition at line 648 of file ios_base.h.

References _M_width.

streamsize std::ios_base::width (  )  const [inline]

Flags access.

Returns:
The minimum field width to generate on output operations.
"Minimum field width" refers to the number of characters.

Definition at line 640 of file ios_base.h.

References _M_width.

Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_float(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::num_put< _CharT, _OutIter >::do_put(), __gnu_cxx::operator<<(), std::operator<<(), and std::operator>>().

static int std::ios_base::xalloc (  )  throw () [static]

Access to unique indices.

Returns:
An integer different from all previous calls.
This function returns a unique integer every time it is called. It can be used for any purpose, but is primarily intended to be a unique index for the iword and pword functions. The expectation is that an application calls xalloc in order to obtain an index in the iword and pword arrays that can be used without fear of conflict.

The implementation maintains a static variable that is incremented and returned on each invocation. xalloc is guaranteed to return an index that is safe to use in the iword and pword arrays.

Member Data Documentation

_Callback_list* std::ios_base::_M_callbacks [protected]

Definition at line 487 of file ios_base.h.

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt().

iostate std::ios_base::_M_exception [protected]

Definition at line 460 of file ios_base.h.

Referenced by std::basic_ios< char, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::init().

fmtflags std::ios_base::_M_flags [protected]

Definition at line 459 of file ios_base.h.

Referenced by flags(), setf(), and unsetf().

locale std::ios_base::_M_ios_locale [protected]

Definition at line 519 of file ios_base.h.

Referenced by _M_getloc(), std::basic_ios< _CharT, _Traits >::copyfmt(), getloc(), and std::basic_ios< _CharT, _Traits >::init().

_Words std::ios_base::_M_local_word[_S_local_word_size] [protected]

Definition at line 509 of file ios_base.h.

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt().

streamsize std::ios_base::_M_precision [protected]

Definition at line 457 of file ios_base.h.

Referenced by precision().

iostate std::ios_base::_M_streambuf_state [protected]

Definition at line 461 of file ios_base.h.

Referenced by std::basic_ios< char, _Traits >::_M_setstate(), std::basic_ios< _CharT, _Traits >::clear(), std::basic_ios< char, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::init(), and std::basic_ios< char, _Traits >::rdstate().

streamsize std::ios_base::_M_width [protected]

Definition at line 458 of file ios_base.h.

Referenced by width().

_Words* std::ios_base::_M_word [protected]

Definition at line 513 of file ios_base.h.

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), iword(), and pword().

int std::ios_base::_M_word_size [protected]

Definition at line 512 of file ios_base.h.

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), iword(), and pword().

_Words std::ios_base::_M_word_zero [protected]

Definition at line 504 of file ios_base.h.

const fmtflags std::ios_base::adjustfield = _S_adjustfield [static]

A mask of left|right|internal. Useful for the 2-arg form of setf.

Definition at line 308 of file ios_base.h.

Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), std::__pad< _CharT, _Traits >::_S_pad(), std::internal(), std::left(), and std::right().

const openmode std::ios_base::app = _S_app [static]

Seek to end before each write.

Definition at line 362 of file ios_base.h.

Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_stringbuf_init().

const openmode std::ios_base::ate = _S_ate [static]

Open and seek to end immediately after opening.

Definition at line 365 of file ios_base.h.

Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_stringbuf_init(), and std::basic_filebuf< _CharT, _Traits >::open().

const iostate std::ios_base::badbit = _S_badbit [static]

Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error from a file).

Definition at line 332 of file ios_base.h.

Referenced by std::basic_ostream< char >::_M_write(), std::basic_ios< char, _Traits >::bad(), std::basic_ios< _CharT, _Traits >::clear(), std::basic_ios< char, _Traits >::fail(), std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_ios< _CharT, _Traits >::init(), std::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator>>(), std::basic_istream< _CharT, _Traits >::operator>>(), _GLIBCXX_STD::operator>>(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_ostream< _CharT, _Traits >::put(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::readsome(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_istream< _CharT, _Traits >::sync(), std::basic_istream< _CharT, _Traits >::tellg(), std::basic_ostream< _CharT, _Traits >::tellp(), std::basic_istream< _CharT, _Traits >::unget(), std::basic_ostream< _CharT, _Traits >::write(), and std::basic_ostream< _CharT, _Traits >::sentry::~sentry().

const fmtflags std::ios_base::basefield = _S_basefield [static]

A mask of dec|oct|hex. Useful for the 2-arg form of setf.

Definition at line 311 of file ios_base.h.

Referenced by std::__int_to_char(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::dec(), std::num_get< _CharT, _InIter >::do_get(), std::hex(), std::oct(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator<<(), and std::operator>>().

const seekdir std::ios_base::beg = _S_beg [static]

Request a seek relative to the beginning of the stream.

Definition at line 395 of file ios_base.h.

Referenced by __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::seekoff(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::seekpos(), and std::basic_filebuf< _CharT, _Traits >::seekpos().

const openmode std::ios_base::binary = _S_bin [static]

Perform input and output in binary mode (as opposed to text mode). This is probably not what you think it is; see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#3 and http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more.

Definition at line 371 of file ios_base.h.

Referenced by std::basic_filebuf< _CharT, _Traits >::showmanyc().

const fmtflags std::ios_base::boolalpha = _S_boolalpha [static]

Insert/extract bool in alphabetic rather than numeric format.

Definition at line 256 of file ios_base.h.

Referenced by std::boolalpha(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::noboolalpha().

const seekdir std::ios_base::cur = _S_cur [static]

Request a seek relative to the current position within the sequence.

Definition at line 398 of file ios_base.h.

Referenced by std::basic_filebuf< _CharT, _Traits >::imbue(), std::basic_filebuf< _CharT, _Traits >::pbackfail(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::seekoff(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_filebuf< _CharT, _Traits >::seekoff(), std::basic_istream< _CharT, _Traits >::tellg(), and std::basic_ostream< _CharT, _Traits >::tellp().

const fmtflags std::ios_base::dec = _S_dec [static]

Converts integer input or generates integer output in decimal base.

Definition at line 259 of file ios_base.h.

Referenced by std::dec(), std::operator<<(), and std::operator>>().

const seekdir std::ios_base::end = _S_end [static]

Request a seek relative to the current end of the sequence.

Definition at line 401 of file ios_base.h.

Referenced by std::basic_filebuf< _CharT, _Traits >::open(), and std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff().

const iostate std::ios_base::eofbit = _S_eofbit [static]

Indicates that an input operation reached the end of an input sequence.

Definition at line 335 of file ios_base.h.

Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_float(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_date(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_time(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::basic_ios< char, _Traits >::eof(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::operator>>(), _GLIBCXX_STD::operator>>(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::readsome(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), and std::ws().

const iostate std::ios_base::failbit = _S_failbit [static]

Indicates that an input operation failed to read the expected characters, or that an output operation failed to generate the desired characters.

Definition at line 340 of file ios_base.h.

Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_float(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::time_get< _CharT, _InIter >::_M_extract_name(), std::time_get< _CharT, _InIter >::_M_extract_num(), std::time_get< _CharT, _InIter >::_M_extract_via_format(), std::basic_fstream< _CharT, _Traits >::close(), std::basic_ofstream< _CharT, _Traits >::close(), std::basic_ifstream< _CharT, _Traits >::close(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::basic_ios< char, _Traits >::fail(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), _GLIBCXX_STD::operator>>(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().

const fmtflags std::ios_base::fixed = _S_fixed [static]

Generate floating-point output in fixed-point notation.

Definition at line 262 of file ios_base.h.

Referenced by std::num_put< _CharT, _OutIter >::_M_insert_float(), and std::fixed().

const fmtflags std::ios_base::floatfield = _S_floatfield [static]

A mask of scientific|fixed. Useful for the 2-arg form of setf.

Definition at line 314 of file ios_base.h.

Referenced by std::fixed(), and std::scientific().

const iostate std::ios_base::goodbit = _S_goodbit [static]

Indicates all is well.

Definition at line 343 of file ios_base.h.

Referenced by std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_ios< _CharT, _Traits >::init(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator>>(), std::basic_istream< _CharT, _Traits >::operator>>(), _GLIBCXX_STD::operator>>(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_ostream< _CharT, _Traits >::put(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::readsome(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sync(), and std::basic_istream< _CharT, _Traits >::unget().

const fmtflags std::ios_base::hex = _S_hex [static]

Converts integer input or generates integer output in hexadecimal base.

Definition at line 265 of file ios_base.h.

Referenced by std::__int_to_char(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::hex(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator<<(), and std::operator>>().

const openmode std::ios_base::in = _S_in [static]

Open for input. Default for ifstream and fstream.

Definition at line 374 of file ios_base.h.

Referenced by std::basic_filebuf< _CharT, _Traits >::_M_set_buffer(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_sync(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_update_egptr(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_filebuf< _CharT, _Traits >::pbackfail(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::showmanyc(), std::basic_filebuf< _CharT, _Traits >::showmanyc(), std::basic_istream< _CharT, _Traits >::tellg(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::underflow(), std::basic_filebuf< _CharT, _Traits >::underflow(), and std::basic_filebuf< _CharT, _Traits >::xsgetn().

const fmtflags std::ios_base::internal = _S_internal [static]

Adds fill characters at a designated internal point in certain generated output, or identical to right if no such point is designated.

Definition at line 270 of file ios_base.h.

Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), std::__pad< _CharT, _Traits >::_S_pad(), std::num_put< _CharT, _OutIter >::do_put(), and std::internal().

const fmtflags std::ios_base::left = _S_left [static]

Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.)

Definition at line 274 of file ios_base.h.

Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), std::__pad< _CharT, _Traits >::_S_pad(), std::left(), and __gnu_cxx::operator<<().

const fmtflags std::ios_base::oct = _S_oct [static]

Converts integer input or generates integer output in octal base.

Definition at line 277 of file ios_base.h.

Referenced by std::__int_to_char(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::oct(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator<<(), and std::operator>>().

const openmode std::ios_base::out = _S_out [static]

Open for output. Default for ofstream and fstream.

Definition at line 377 of file ios_base.h.

Referenced by std::basic_filebuf< _CharT, _Traits >::_M_set_buffer(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_sync(), std::basic_ofstream< _CharT, _Traits >::open(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), std::basic_filebuf< _CharT, _Traits >::overflow(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::pbackfail(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), std::basic_ostream< _CharT, _Traits >::tellp(), and std::basic_filebuf< _CharT, _Traits >::xsputn().

const fmtflags std::ios_base::right = _S_right [static]

Adds fill characters on the left (initial positions) of certain generated output. (I.e., the thing you print is flush right.)

Definition at line 281 of file ios_base.h.

Referenced by std::right().

const fmtflags std::ios_base::scientific = _S_scientific [static]

Generates floating-point output in scientific notation.

Definition at line 284 of file ios_base.h.

Referenced by std::scientific().

const fmtflags std::ios_base::showbase = _S_showbase [static]

Generates a prefix indicating the numeric base of generated integer output.

Definition at line 288 of file ios_base.h.

Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::num_put< _CharT, _OutIter >::do_put(), std::noshowbase(), and std::showbase().

const fmtflags std::ios_base::showpoint = _S_showpoint [static]

Generates a decimal-point character unconditionally in generated floating-point output.

Definition at line 292 of file ios_base.h.

Referenced by std::noshowpoint(), and std::showpoint().

const fmtflags std::ios_base::showpos = _S_showpos [static]

Generates a + sign in non-negative generated numeric output.

Definition at line 295 of file ios_base.h.

Referenced by std::num_put< _CharT, _OutIter >::_M_insert_int(), std::noshowpos(), and std::showpos().

const fmtflags std::ios_base::skipws = _S_skipws [static]

Skips leading white space before certain input operations.

Definition at line 298 of file ios_base.h.

Referenced by std::noskipws(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), and std::skipws().

const openmode std::ios_base::trunc = _S_trunc [static]

Open for input. Default for ofstream.

Definition at line 380 of file ios_base.h.

const fmtflags std::ios_base::unitbuf = _S_unitbuf [static]

Flushes output after each output operation.

Definition at line 301 of file ios_base.h.

Referenced by std::nounitbuf(), std::unitbuf(), and std::basic_ostream< _CharT, _Traits >::sentry::~sentry().

const fmtflags std::ios_base::uppercase = _S_uppercase [static]

Replaces certain lowercase letters with their uppercase equivalents in generated output.

Definition at line 305 of file ios_base.h.

Referenced by std::__int_to_char(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::num_put< _CharT, _OutIter >::do_put(), std::nouppercase(), and std::uppercase().

The documentation for this class was generated from the following file:
Generated on Tue Feb 2 16:58:58 2010 for GNU C++ STL by  doxygen 1.4.7