libstdc++: std::basic_istringstream< _CharT, _Traits, _Alloc (original) (raw)

#include <[sstream](a00197%5Fsource.html)>

Public Types
typedef ctype< _CharT > __ctype_type
typedef basic_ios< _CharT, _Traits > __ios_type
typedef basic_istream< char_type, traits_type > __istream_type
typedef num_get< _CharT, istreambuf_iterator< _CharT, _Traits > > __num_get_type
typedef basic_streambuf< _CharT, _Traits > __streambuf_type
typedef basic_string< _CharT, _Traits, _Alloc > __string_type
typedef basic_stringbuf< _CharT, _Traits, _Alloc > __stringbuf_type
typedef _Alloc allocator_type
typedef _CharT char_type
enum event { erase_event, imbue_event, copyfmt_event }
typedef void(* event_callback) (event __e, ios_base &__b, int __i)
typedef _Ios_Fmtflags fmtflags
typedef traits_type::int_type int_type
typedef _Ios_Iostate iostate
typedef traits_type::off_type off_type
typedef _Ios_Openmode openmode
typedef traits_type::pos_type pos_type
typedef _Ios_Seekdir seekdir
typedef _Traits traits_type
typedef num_put< _CharT, ostreambuf_iterator< _CharT, _Traits > > __num_put_type
Public Member Functions
basic_istringstream ()
basic_istringstream (basic_istringstream &&__rhs)
basic_istringstream (const __string_type &__str, ios_base::openmode __mode=ios_base::in)
basic_istringstream (const basic_istringstream &)=delete
basic_istringstream (ios_base::openmode __mode)
~basic_istringstream ()
template<typename _ValueT >
basic_istream< _CharT, _Traits > & _M_extract (_ValueT &__v)
const locale & _M_getloc () const
void _M_setstate (iostate __state)
bool bad () const
void clear (iostate __state=goodbit)
basic_ios & copyfmt (const basic_ios &__rhs)
bool eof () const
iostate exceptions () const
void exceptions (iostate __except)
bool fail () const
char_type fill () const
char_type fill (char_type __ch)
fmtflags flags () const
fmtflags flags (fmtflags __fmtfl)
streamsize gcount () const
basic_istream< char > & getline (char_type *__s, streamsize __n, char_type __delim)
basic_istream< wchar_t > & getline (char_type *__s, streamsize __n, char_type __delim)
locale getloc () const
bool good () const
basic_istream< char > & ignore (streamsize __n)
basic_istream< wchar_t > & ignore (streamsize __n)
basic_istream< char > & ignore (streamsize __n, int_type __delim)
basic_istream< wchar_t > & ignore (streamsize __n, int_type __delim)
locale imbue (const locale &__loc)
long & iword (int __ix)
char narrow (char_type __c, char __dfault) const
basic_istringstream & operator= (basic_istringstream &&__rhs)
basic_istringstream & operator= (const basic_istringstream &)=delete
__istream_type & operator>> (__streambuf_type *__sb)
__istream_type & operator>> (void *&__p)
streamsize precision () const
streamsize precision (streamsize __prec)
void *& pword (int __ix)
__stringbuf_type * rdbuf () const
basic_streambuf< _CharT, _Traits > * rdbuf (basic_streambuf< _CharT, _Traits > *__sb)
iostate rdstate () const
void register_callback (event_callback __fn, int __index)
fmtflags setf (fmtflags __fmtfl)
fmtflags setf (fmtflags __fmtfl, fmtflags __mask)
void setstate (iostate __state)
__string_type str () const
void str (const __string_type &__s)
void swap (basic_istringstream &__rhs)
basic_ostream< _CharT, _Traits > * tie () const
basic_ostream< _CharT, _Traits > * tie (basic_ostream< _CharT, _Traits > *__tiestr)
void unsetf (fmtflags __mask)
basic_string_view< char_type, traits_type > view () const noexcept
char_type widen (char __c) const
streamsize width () const
streamsize width (streamsize __wide)
__istream_type & operator>> (__istream_type &(*__pf)(__istream_type &))
__istream_type & operator>> (__ios_type &(*__pf)(__ios_type &))
__istream_type & operator>> (ios_base &(*__pf)(ios_base &))
Extractors
All the operator>> functions (aka formatted input functions) have some common behavior. Each starts by constructing a temporary object of type std::basic_istream::sentry with the second argument (noskipws) set to false. This has several effects, concluding with the setting of a status flag; see the sentry documentation for more. If the sentry status is good, the function tries to extract whatever data is appropriate for the type of the argument. If an exception is thrown during extraction, ios_base::badbit will be turned on in the stream's error state (without causing an ios_base::failure to be thrown) and the original exception will be rethrown if badbit is set in the exceptions mask.
__istream_type & operator>> (bool &__n)
__istream_type & operator>> (short &__n)
__istream_type & operator>> (unsigned short &__n)
__istream_type & operator>> (int &__n)
__istream_type & operator>> (unsigned int &__n)
__istream_type & operator>> (long &__n)
__istream_type & operator>> (unsigned long &__n)
__istream_type & operator>> (long long &__n)
__istream_type & operator>> (unsigned long long &__n)
__istream_type & operator>> (float &__f)
__istream_type & operator>> (double &__f)
__istream_type & operator>> (long double &__f)
Unformatted Input Functions
All the unformatted input functions have some common behavior. Each starts by constructing a temporary object of type std::basic_istream::sentry with the second argument (noskipws) set to true. This has several effects, concluding with the setting of a status flag; see the sentry documentation for more. If the sentry status is good, the function tries to extract whatever data is appropriate for the type of the argument. The number of characters extracted is stored for later retrieval by gcount(). If an exception is thrown during extraction, ios_base::badbit will be turned on in the stream's error state (without causing an ios_base::failure to be thrown) and the original exception will be rethrown if badbit is set in the exceptions mask.
int_type get ()
__istream_type & get (char_type &__c)
__istream_type & get (char_type *__s, streamsize __n, char_type __delim)
__istream_type & get (char_type *__s, streamsize __n)
__istream_type & get (__streambuf_type &__sb, char_type __delim)
__istream_type & get (__streambuf_type &__sb)
__istream_type & getline (char_type *__s, streamsize __n, char_type __delim)
__istream_type & getline (char_type *__s, streamsize __n)
__istream_type & ignore (streamsize __n, int_type __delim)
__istream_type & ignore (streamsize __n)
__istream_type & ignore ()
int_type peek ()
__istream_type & read (char_type *__s, streamsize __n)
streamsize readsome (char_type *__s, streamsize __n)
__istream_type & putback (char_type __c)
__istream_type & unget ()
int sync ()
pos_type tellg ()
__istream_type & seekg (pos_type)
__istream_type & seekg (off_type, ios_base::seekdir)
operator bool () const
bool operator! () const
Static Public Member Functions
static bool sync_with_stdio (bool __sync=true)
static int xalloc () throw ()
Static Public Attributes
static const openmode __noreplace
static const fmtflags adjustfield
static const openmode app
static const openmode ate
static const iostate badbit
static const fmtflags basefield
static const seekdir beg
static const openmode binary
static const fmtflags boolalpha
static const seekdir cur
static const fmtflags dec
static const seekdir end
static const iostate eofbit
static const iostate failbit
static const fmtflags fixed
static const fmtflags floatfield
static const iostate goodbit
static const fmtflags hex
static const openmode in
static const fmtflags internal
static const fmtflags left
static const fmtflags oct
static const openmode out
static const fmtflags right
static const fmtflags scientific
static const fmtflags showbase
static const fmtflags showpoint
static const fmtflags showpos
static const fmtflags skipws
static const openmode trunc
static const fmtflags unitbuf
static const fmtflags uppercase
Protected Types
enum { _S_local_word_size }
Protected Member Functions
void _M_cache_locale (const locale &__loc)
void _M_call_callbacks (event __ev) throw ()
void _M_dispose_callbacks (void) throw ()
template<typename _ValueT >
__istream_type & _M_extract (_ValueT &__v)
_Words & _M_grow_words (int __index, bool __iword)
void _M_init () throw ()
void _M_move (ios_base &) noexcept
void _M_swap (ios_base &__rhs) noexcept
void init (basic_streambuf< _CharT, _Traits > *__sb)
void move (basic_ios &&__rhs)
void move (basic_ios &__rhs)
void set_rdbuf (basic_streambuf< _CharT, _Traits > *__sb)
void swap (basic_ios &__rhs) noexcept
void swap (basic_istream &__rhs)
Protected Attributes
_Callback_list * _M_callbacks
const __ctype_type * _M_ctype
iostate _M_exception
char_type _M_fill
bool _M_fill_init
fmtflags _M_flags
streamsize _M_gcount
locale _M_ios_locale
_Words _M_local_word [_S_local_word_size]
const __num_get_type * _M_num_get
const __num_put_type * _M_num_put
streamsize _M_precision
basic_streambuf< _CharT, _Traits > * _M_streambuf
iostate _M_streambuf_state
basic_ostream< _CharT, _Traits > * _M_tie
streamsize _M_width
_Words * _M_word
int _M_word_size
_Words _M_word_zero

template<typename _CharT, typename _Traits, typename _Alloc>
class std::basic_istringstream< _CharT, _Traits, _Alloc >

Controlling input for std::string.

Template Parameters

_CharT Type of character stream.
_Traits Traits for character type, defaults to char_traits<_CharT>.
_Alloc Allocator type, defaults to allocator<_CharT>.

This class supports reading from objects of type std::basic_string, using the inherited functions from std::basic_istream. To control the associated sequence, an instance of std::basic_stringbuf is used, which this page refers to as sb.

Definition at line 547 of file sstream.

__ctype_type

template<typename _CharT , typename _Traits >

Definition at line 76 of file istream.

__ios_type

template<typename _CharT , typename _Traits >

Definition at line 72 of file istream.

__istream_type

template<typename _CharT , typename _Traits , typename _Alloc >

__num_get_type

template<typename _CharT , typename _Traits >

Definition at line 75 of file istream.

__num_put_type

template<typename _CharT , typename _Traits >

These are non-standard types.

Definition at line 93 of file basic_ios.h.

__streambuf_type

template<typename _CharT , typename _Traits >

Definition at line 71 of file istream.

__string_type

template<typename _CharT , typename _Traits , typename _Alloc >

__stringbuf_type

template<typename _CharT , typename _Traits , typename _Alloc >

allocator_type

template<typename _CharT , typename _Traits , typename _Alloc >

char_type

template<typename _CharT , typename _Traits , typename _Alloc >

event_callback

typedef void(* std::ios_base::event_callback) (event __e, ios_base &__b, int __i) inherited

The type of an event callback function.

Parameters

__e One of the members of the event enum.
__b Reference to the ios_base object.
__i 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 562 of file ios_base.h.

fmtflags

typedef _Ios_Fmtflags std::ios_base::fmtflags inherited

This is a bitmask type.

__IosFmtflags_ 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 367 of file ios_base.h.

int_type

template<typename _CharT , typename _Traits , typename _Alloc >

iostate

typedef _Ios_Iostate std::ios_base::iostate inherited

This is a bitmask type.

__IosIostate_ 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 442 of file ios_base.h.

off_type

template<typename _CharT , typename _Traits , typename _Alloc >

openmode

typedef _Ios_Openmode std::ios_base::openmode inherited

This is a bitmask type.

__IosOpenmode_ 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 473 of file ios_base.h.

pos_type

template<typename _CharT , typename _Traits , typename _Alloc >

seekdir

typedef _Ios_Seekdir std::ios_base::seekdir inherited

This is an enumerated type.

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

Definition at line 512 of file ios_base.h.

traits_type

template<typename _CharT , typename _Traits , typename _Alloc >

anonymous enum

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().

Definition at line 545 of file ios_base.h.

template<typename _CharT , typename _Traits , typename _Alloc >

Default constructor starts with an empty string buffer.

Initializes sb using in, and passes &sb to the base class initializer. Does not allocate any buffer.

That's a lie. We initialize the base class with NULL, because the string class does its own memory management.

Definition at line 580 of file sstream.

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

basic_istringstream() [2/4]

template<typename _CharT , typename _Traits , typename _Alloc >

Starts with an empty string buffer.

Parameters

__mode Whether the buffer can read, or write, or both.

ios_base::in is automatically included in __mode.

Initializes sb using __mode|in, and passes &sb to the base class initializer. Does not allocate any buffer.

That's a lie. We initialize the base class with NULL, because the string class does its own memory management.

Definition at line 597 of file sstream.

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

basic_istringstream() [3/4]

template<typename _CharT , typename _Traits , typename _Alloc >

Starts with an existing string buffer.

Parameters

__str A string to copy as a starting buffer.
__mode Whether the buffer can read, or write, or both.

ios_base::in is automatically included in mode.

Initializes sb using str and mode|in, and passes &sb to the base class initializer.

That's a lie. We initialize the base class with NULL, because the string class does its own memory management.

Definition at line 615 of file sstream.

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

~basic_istringstream()

template<typename _CharT , typename _Traits , typename _Alloc >

The destructor does nothing.

The buffer is deallocated by the stringbuf object, not the formatting stream.

Definition at line 626 of file sstream.

basic_istringstream() [4/4]

template<typename _CharT , typename _Traits , typename _Alloc >

_M_cache_locale()

template<typename _CharT , typename _Traits >

_M_extract()

template<typename _CharT , typename _Traits >

template<typename _ValueT >

_M_getloc()

const locale & std::ios_base::_M_getloc ( ) const inlineinherited

Locale access.

Returns

A reference to the current locale.

Like getloc above, but returns a reference instead of generating a copy.

Definition at line 837 of file ios_base.h.

Referenced by std::money_get< _CharT, _InIter >::do_get(), std::time_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::num_put< _CharT, _OutIter >::do_put(), std::time_put< _CharT, _OutIter >::do_put(), std::time_get< _CharT, _InIter >::get(), and std::time_put< _CharT, _OutIter >::put().

_M_setstate()

template<typename _CharT , typename _Traits >

bad()

template<typename _CharT , typename _Traits >

clear()

template<typename _CharT , typename _Traits >

[Re]sets the error state.

Parameters

__state The new state flag(s) to set.

See std::ios_base::iostate for the possible bit values. Most users will not need to pass an argument.

Definition at line 41 of file basic_ios.tcc.

Referenced by std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::__detail::operator>>(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ios< _CharT, _Traits >::setstate(), and std::basic_istream< _CharT, _Traits >::unget().

copyfmt()

template<typename _CharT , typename _Traits >

Copies fields of __rhs into this.

Parameters

__rhs The source values for the copies.

Returns

Reference to this object.

All fields of __rhs are copied into this object except that rdbuf() and rdstate() remain unchanged. All values in the pword and iword arrays are copied. Before copying, each callback is invoked with erase_event. After copying, each (new) callback is invoked with copyfmt_event. The final step is to copy exceptions().

Definition at line 63 of file basic_ios.tcc.

References std::__addressof(), std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::fill(), std::ios_base::flags(), std::ios_base::getloc(), std::ios_base::precision(), std::basic_ios< _CharT, _Traits >::tie(), std::tie(), and std::ios_base::width().

eof()

template<typename _CharT , typename _Traits >

exceptions() [1/2]

template<typename _CharT , typename _Traits >

Throwing exceptions on errors.

Returns

The current exceptions mask.

This changes nothing in the stream. See the one-argument version of exceptions(iostate) for the meaning of the return value.

Definition at line 226 of file basic_ios.h.

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

exceptions() [2/2]

template<typename _CharT , typename _Traits >

Throwing exceptions on errors.

Parameters

__except The new exceptions mask.

By default, error flags are set silently. You can set an exceptions mask for each stream; if a bit in the mask becomes set in the error flags, then an exception of type std::ios_base::failure is thrown.

If the error flag is already set when the exceptions mask is added, the exception is immediately thrown. Try running the following under GCC 3.1 or later:

int main()

{

std::cerr << "Setting exception mask\n";

}

terminate_handler set_terminate(terminate_handler) noexcept

Takes a new handler function as an argument, returns the old function.

void __verbose_terminate_handler()

A replacement for the standard terminate_handler which prints more information about the terminating ...

ostream cerr

Linked to standard error (unbuffered)

Controlling input for files.

iostate exceptions() const

Throwing exceptions on errors.

void setstate(iostate __state)

Sets additional flags in the error state.

static const iostate badbit

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

Definition at line 261 of file basic_ios.h.

References std::basic_ios< _CharT, _Traits >::clear().

fail()

template<typename _CharT , typename _Traits >

bool std::basic_ios< _CharT, _Traits >::fail ( ) const inlineinherited

Fast error checking.

Returns

True if either the badbit or the failbit is set.

Checking the badbit in fail() is historical practice. Note that other iostate flags may also be set.

Definition at line 205 of file basic_ios.h.

References std::ios_base::badbit, std::ios_base::failbit, and std::basic_ios< _CharT, _Traits >::rdstate().

Referenced by std::basic_ios< _CharT, _Traits >::operator bool(), std::basic_ios< _CharT, _Traits >::operator!(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_istream< _CharT, _Traits >::tellg(), std::basic_ostream< _CharT, _Traits >::tellp(), and std::regex_traits< _Ch_type >::value().

fill() [1/2]

template<typename _CharT , typename _Traits >

char_type std::basic_ios< _CharT, _Traits >::fill ( ) const inlineinherited

fill() [2/2]

template<typename _CharT , typename _Traits >

Sets a new empty character.

Parameters

Returns

The previous fill character.

The fill character is used to fill out space when P+ characters have been requested (e.g., via setw), Q characters are actually used, and Q<P. It defaults to a space (' ') in the current locale.

Definition at line 391 of file basic_ios.h.

flags() [1/2]

fmtflags std::ios_base::flags ( ) const inlineinherited

Access to format flags.

Returns

The format control flags for both input and output.

Definition at line 682 of file ios_base.h.

Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_ostream< _CharT, _Traits >::sentry::~sentry(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::num_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::num_put< _CharT, _OutIter >::do_put(), std::normal_distribution< double >::operator()(), std::operator<<(), std::chrono::operator<<(), std::operator>>(), std::operator>>(), std::__detail::operator>>(), std::operator>>(), std::operator>>(), std::operator>>(), std::operator>>(), and std::operator>>().

flags() [2/2]

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 693 of file ios_base.h.

gcount()

template<typename _CharT , typename _Traits >

get() [1/6]

template<typename _CharT , typename _Traits >

Simple extraction.

Returns

A character, or eof().

Tries to extract a character. If none are available, sets failbit and returns traits::eof().

Definition at line 260 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, std::ios_base::badbit, std::ios_base::eofbit, std::ios_base::failbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().

Referenced by std::basic_istream< _CharT, _Traits >::get(), and std::basic_istream< _CharT, _Traits >::get().

get() [2/6]

template<typename _CharT , typename _Traits >

get() [3/6]

template<typename _CharT , typename _Traits >

Extraction into another streambuf.

Parameters

__sb A streambuf in which to store data.
__delim A "stop" character.

Returns

*this

Characters are extracted and inserted into __sb until one of the following happens:

If no characters are stored, failbit is set in the stream's error state.

Definition at line 380 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, and std::ios_base::goodbit.

get() [4/6]

template<typename _CharT , typename _Traits >

Simple extraction.

Parameters

__c The character in which to store data.

Returns

*this

Tries to extract a character and store it in __c. If none are available, sets failbit and returns traits::eof().

Note

This function is not overloaded on signed char and unsigned char.

Definition at line 296 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, std::ios_base::badbit, std::ios_base::eofbit, std::ios_base::failbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().

get() [5/6]

template<typename _CharT , typename _Traits >

get() [6/6]

template<typename _CharT , typename _Traits >

getline() [1/3]

template<typename _CharT , typename _Traits >

getline() [2/3]

template<typename _CharT , typename _Traits >

String extraction.

Parameters

__s A character array in which to store the data.
__n Maximum number of characters to extract.
__delim A "stop" character.

Returns

*this

Extracts and stores characters into __s until one of the following happens. Note that these criteria are required to be tested in the order listed here, to allow an input line to exactly fill the __s array without setting failbit.

  1. the input sequence reaches end-of-file, in which case eofbit is set in the stream error state
  2. the next character equals __delim, in which case the character is extracted (and therefore counted in gcount()) but not stored
  3. __n-1 characters are stored, in which case failbit is set in the stream error state

If no characters are extracted, failbit is set. (An empty line of input should therefore not cause failbit to be set.)

In any case, a null character is stored in the next location in the array.

Definition at line 431 of file istream.tcc.

Referenced by std::basic_istream< _CharT, _Traits >::getline().

getline() [3/3]

Explicit specialization declarations, defined in src/istream.cc.

getloc()

locale std::ios_base::getloc ( ) const inlineinherited

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 826 of file ios_base.h.

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

good()

template<typename _CharT , typename _Traits >

bool std::basic_ios< _CharT, _Traits >::good ( ) const inlineinherited

ignore() [1/3]

template<typename _CharT , typename _Traits >

ignore() [2/3]

template<typename _CharT , typename _Traits >

ignore() [3/3]

template<typename _CharT , typename _Traits >

Discarding characters.

Parameters

__n Number of characters to discard.
__delim A "stop" character.

Returns

*this

Extracts characters and throws them away until one of the following happens:

NB: Provide three overloads, instead of the single function (with defaults) mandated by the Standard: this leads to a better performing implementation, while still conforming to the Standard.

Definition at line 594 of file istream.tcc.

imbue()

template<typename _CharT , typename _Traits >

init()

template<typename _CharT , typename _Traits >

All setup is performed here.

This is called from the public constructor. It is not virtual and cannot be redefined.

Definition at line 126 of file basic_ios.tcc.

Referenced by std::basic_fstream< _CharT, _Traits >::basic_fstream(), std::basic_fstream< _CharT, _Traits >::basic_fstream(), std::basic_fstream< _CharT, _Traits >::basic_fstream(), std::basic_ifstream< _CharT, _Traits >::basic_ifstream(), std::basic_ifstream< _CharT, _Traits >::basic_ifstream(), std::basic_ifstream< _CharT, _Traits >::basic_ifstream(), std::basic_ios< _CharT, _Traits >::basic_ios(), std::basic_istream< _CharT, _Traits >::basic_istream(), std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream(), std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream(), std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream(), std::basic_ofstream< _CharT, _Traits >::basic_ofstream(), std::basic_ofstream< _CharT, _Traits >::basic_ofstream(), std::basic_ofstream< _CharT, _Traits >::basic_ofstream(), std::basic_ostream< _CharT, _Traits >::basic_ostream(), std::basic_ostringstream< _CharT, _Traits, _Alloc >::basic_ostringstream(), std::basic_ostringstream< _CharT, _Traits, _Alloc >::basic_ostringstream(), std::basic_ostringstream< _CharT, _Traits, _Alloc >::basic_ostringstream(), std::basic_stringstream< _CharT, _Traits, _Alloc >::basic_stringstream(), std::basic_stringstream< _CharT, _Traits, _Alloc >::basic_stringstream(), and std::basic_stringstream< _CharT, _Traits, _Alloc >::basic_stringstream().

iword()

long & std::ios_base::iword ( int __ix) inlineinherited

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 872 of file ios_base.h.

move() [1/2]

template<typename _CharT , typename _Traits >

move() [2/2]

template<typename _CharT , typename _Traits >

narrow()

template<typename _CharT , typename _Traits >

Squeezes characters.

Parameters

__c The character to narrow.
__dfault The character to narrow.

Returns

The narrowed character.

Maps a character of char_type to a character of char, if possible.

Returns the result of

std::use_facet<ctype<char_type> >(getloc()).narrow(c,dfault)

char narrow(char_type __c, char __dfault) const

Squeezes characters.

locale getloc() const

Locale access.

Additional l10n notes are at https://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html

Definition at line 432 of file basic_ios.h.

operator bool()

template<typename _CharT , typename _Traits >

std::basic_ios< _CharT, _Traits >::operator bool ( ) const inlineexplicitinherited

operator!()

template<typename _CharT , typename _Traits >

bool std::basic_ios< _CharT, _Traits >::operator! ( ) const inlineinherited

operator=()

template<typename _CharT , typename _Traits , typename _Alloc >

operator>>() [1/17]

template<typename _CharT , typename _Traits >

Interface for manipulators.

Manipulators such as std::ws and std::dec use these functions in constructs like std::cin >> std::ws. For more information, see the iomanip header.

Definition at line 126 of file istream.

operator>>() [2/17]

template<typename _CharT , typename _Traits >

Interface for manipulators.

Manipulators such as std::ws and std::dec use these functions in constructs like std::cin >> std::ws. For more information, see the iomanip header.

Definition at line 122 of file istream.

operator>>() [3/17]

template<typename _CharT , typename _Traits >

Extracting into another streambuf.

Parameters

__sb A pointer to a streambuf

This function behaves like one of the basic arithmetic extractors, in that it also constructs a sentry object and has the same error handling behavior.

If __sb is NULL, the stream will set failbit in its error state.

Characters are extracted from this stream and inserted into the __sb streambuf until one of the following occurs:

If the function inserts no characters, failbit is set.

Definition at line 228 of file istream.tcc.

References std::ios_base::eofbit, std::ios_base::failbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().

operator>>() [4/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 170 of file istream.

operator>>() [5/17]

template<typename _CharT , typename _Traits >

Floating point arithmetic extractors.

Parameters

__f A variable of builtin floating point type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 220 of file istream.

operator>>() [6/17]

template<typename _CharT , typename _Traits >

Floating point arithmetic extractors.

Parameters

__f A variable of builtin floating point type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 216 of file istream.

operator>>() [7/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 178 of file istream.tcc.

operator>>() [8/17]

template<typename _CharT , typename _Traits >

Interface for manipulators.

Manipulators such as std::ws and std::dec use these functions in constructs like std::cin >> std::ws. For more information, see the iomanip header.

Definition at line 133 of file istream.

operator>>() [9/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 188 of file istream.

operator>>() [10/17]

template<typename _CharT , typename _Traits >

Floating point arithmetic extractors.

Parameters

__f A variable of builtin floating point type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 224 of file istream.

operator>>() [11/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 197 of file istream.

operator>>() [12/17]

template<typename _CharT , typename _Traits >

operator>>() [13/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 184 of file istream.

operator>>() [14/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 192 of file istream.

operator>>() [15/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 201 of file istream.

operator>>() [16/17]

template<typename _CharT , typename _Traits >

Integer arithmetic extractors.

Parameters

__n A variable of builtin integral type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 177 of file istream.

operator>>() [17/17]

template<typename _CharT , typename _Traits >

Basic arithmetic extractors.

Parameters

__p A variable of pointer type.

Returns

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to parse the input data.

Definition at line 325 of file istream.

peek()

template<typename _CharT , typename _Traits >

Looking ahead in the stream.

Returns

The next character, or eof().

If, after constructing the sentry object, good() is false, returns traits::eof(). Otherwise reads but does not extract the next input character.

Definition at line 671 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount.

precision() [1/2]

streamsize std::ios_base::precision ( ) const inlineinherited

precision() [2/2]

Changing flags.

Parameters

__prec The new precision value.

Returns

The previous value of precision().

Definition at line 761 of file ios_base.h.

putback()

template<typename _CharT , typename _Traits >

Unextracting a single character.

Parameters

__c The character to push back into the input stream.

Returns

*this

If rdbuf() is not null, calls rdbuf()->sputbackc(c).

If rdbuf() is null or if sputbackc() fails, sets badbit in the error state.

Note

This function first clears eofbit. Since no characters are extracted, the next call to gcount() will return 0, as required by DR 60.

Definition at line 762 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, std::ios_base::badbit, std::basic_ios< _CharT, _Traits >::clear(), std::ios_base::eofbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), std::basic_ios< _CharT, _Traits >::rdstate(), std::basic_ios< _CharT, _Traits >::setstate(), and std::basic_streambuf< _CharT, _Traits >::sputbackc().

Referenced by std::operator<<().

pword()

void *& std::ios_base::pword ( int __ix) inlineinherited

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 893 of file ios_base.h.

rdbuf() [1/2]

template<typename _CharT , typename _Traits , typename _Alloc >

Accessing the underlying buffer.

Returns

The current basic_stringbuf buffer.

This hides both signatures of std::basic_ios::rdbuf().

Definition at line 698 of file sstream.

rdbuf() [2/2]

template<typename _CharT , typename _Traits >

Changing the underlying buffer.

Parameters

__sb The new stream buffer.

Returns

The previous stream buffer.

Associates a new buffer with the current stream, and clears the error state.

Due to historical accidents which the LWG refuses to correct, the I/O library suffers from a design error: this function is hidden in derived classes by overrides of the zero-argument rdbuf(), which is non-virtual for hysterical raisins. As a result, you must use explicit qualifications to access this function via any derived class. For example:

foo.ios::rdbuf(p);

Controlling input and output for files.

The actual work of input and output (interface).

Definition at line 53 of file basic_ios.tcc.

rdstate()

template<typename _CharT , typename _Traits >

Returns the error state of the stream buffer.

Returns

A bit pattern (well, isn't everything?)

See std::ios_base::iostate for the possible bit values. Most users will call one of the interpreting wrappers, e.g., good().

Definition at line 141 of file basic_ios.h.

Referenced by std::basic_ios< _CharT, _Traits >::bad(), std::basic_ios< _CharT, _Traits >::eof(), std::basic_ios< _CharT, _Traits >::fail(), std::basic_ios< _CharT, _Traits >::good(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ios< _CharT, _Traits >::setstate(), and std::basic_istream< _CharT, _Traits >::unget().

read()

template<typename _CharT , typename _Traits >

Extraction without delimiters.

Parameters

__s A character array.
__n Maximum number of characters to store.

Returns

*this

If the stream state is good(), extracts characters and stores them into __s until one of the following happens:

Note

This function is not overloaded on signed char and unsigned char.

Definition at line 701 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, std::ios_base::badbit, std::ios_base::eofbit, std::ios_base::failbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().

readsome()

template<typename _CharT , typename _Traits >

Extraction until the buffer is exhausted, but no more.

Parameters

__s A character array.
__n Maximum number of characters to store.

Returns

The number of characters extracted.

Extracts characters and stores them into __s depending on the number of characters remaining in the streambuf's buffer, rdbuf()->in_avail(), called A here:

The goal is to empty the current buffer, and to not request any more from the external input sequence controlled by the streambuf.

Definition at line 730 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, std::ios_base::badbit, std::ios_base::eofbit, std::ios_base::goodbit, std::min(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().

register_callback()

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

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.

seekg() [1/2]

template<typename _CharT , typename _Traits >

Changing the current read position.

Parameters

__off A file offset object.
__dir The direction in which to seek.

Returns

*this

If fail() is not true, calls rdbuf()->pubseekoff(__off,__dir). If that function fails, sets failbit.

Note

This function first clears eofbit. It does not count the number of characters extracted, if any, and therefore does not affect the next call to gcount().

Definition at line 935 of file istream.tcc.

References std::ios_base::badbit, std::basic_ios< _CharT, _Traits >::clear(), std::ios_base::eofbit, std::basic_ios< _CharT, _Traits >::fail(), std::ios_base::failbit, std::ios_base::goodbit, std::ios_base::in, std::basic_ios< _CharT, _Traits >::rdbuf(), std::basic_ios< _CharT, _Traits >::rdstate(), and std::basic_ios< _CharT, _Traits >::setstate().

seekg() [2/2]

template<typename _CharT , typename _Traits >

Changing the current read position.

Parameters

__pos A file position object.

Returns

*this

If fail() is not true, calls rdbuf()->pubseekpos(__pos). If that function fails, sets failbit.

Note

This function first clears eofbit. It does not count the number of characters extracted, if any, and therefore does not affect the next call to gcount().

Definition at line 896 of file istream.tcc.

References std::ios_base::badbit, std::basic_ios< _CharT, _Traits >::clear(), std::ios_base::eofbit, std::basic_ios< _CharT, _Traits >::fail(), std::ios_base::failbit, std::ios_base::goodbit, std::ios_base::in, std::basic_ios< _CharT, _Traits >::rdbuf(), std::basic_ios< _CharT, _Traits >::rdstate(), and std::basic_ios< _CharT, _Traits >::setstate().

set_rdbuf()

template<typename _CharT , typename _Traits >

setf() [1/2]

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 709 of file ios_base.h.

Referenced by std::__detail::operator>>().

setf() [2/2]

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 726 of file ios_base.h.

setstate()

template<typename _CharT , typename _Traits >

Sets additional flags in the error state.

Parameters

__state The additional state flag(s) to set.

See std::ios_base::iostate for the possible bit values.

Definition at line 161 of file basic_ios.h.

References std::basic_ios< _CharT, _Traits >::clear(), and std::basic_ios< _CharT, _Traits >::rdstate().

Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), std::basic_ostream< _CharT, _Traits >::sentry::~sentry(), std::basic_ifstream< _CharT, _Traits >::close(), std::basic_ofstream< _CharT, _Traits >::close(), std::basic_fstream< _CharT, _Traits >::close(), std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::getline(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator<<(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), std::operator>>(), std::operator>>(), std::basic_istream< _CharT, _Traits >::operator>>(), std::tr2::operator>>(), 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_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_istream< _CharT, _Traits >::sync(), and std::ws().

str() [1/2]

template<typename _CharT , typename _Traits , typename _Alloc >

Copying out the string buffer.

Returns

rdbuf()->str()

Definition at line 706 of file sstream.

str() [2/2]

template<typename _CharT , typename _Traits , typename _Alloc >

Setting a new buffer.

Parameters

__s The string to use as a new sequence.

Calls rdbuf()->str(s).

Definition at line 736 of file sstream.

swap() [1/3]

template<typename _CharT , typename _Traits >

void std::basic_ios< _CharT, _Traits >::swap ( basic_ios< _CharT, _Traits > & __rhs) inlineprotectednoexceptinherited

swap() [2/3]

template<typename _CharT , typename _Traits >

swap() [3/3]

template<typename _CharT , typename _Traits , typename _Alloc >

sync()

template<typename _CharT , typename _Traits >

Synchronizing the stream buffer.

Returns

0 on success, -1 on failure

If rdbuf() is a null pointer, returns -1.

Otherwise, calls rdbuf()->pubsync(), and if that returns -1, sets badbit and returns -1.

Otherwise, returns 0.

Note

This function does not count the number of characters extracted, if any, and therefore does not affect the next call to gcount().

Definition at line 832 of file istream.tcc.

References std::ios_base::badbit, std::ios_base::goodbit, std::basic_streambuf< _CharT, _Traits >::pubsync(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().

sync_with_stdio()

static bool std::ios_base::sync_with_stdio ( bool __sync = true) staticinherited

tellg()

template<typename _CharT , typename _Traits >

Getting the current read position.

Returns

A file position object.

If fail() is not false, returns pos_type(-1) to indicate failure. Otherwise returns rdbuf()->pubseekoff(0,cur,in).

Note

This function does not count the number of characters extracted, if any, and therefore does not affect the next call to gcount(). At variance with putback, unget and seekg, eofbit is not cleared first.

Definition at line 868 of file istream.tcc.

References std::ios_base::badbit, std::ios_base::cur, std::basic_ios< _CharT, _Traits >::fail(), std::ios_base::in, and std::basic_ios< _CharT, _Traits >::rdbuf().

tie() [1/2]

template<typename _CharT , typename _Traits >

tie() [2/2]

template<typename _CharT , typename _Traits >

Ties this stream to an output stream.

Parameters

__tiestr The output stream.

Returns

The previously tied output stream, or NULL if the stream was not tied.

This sets up a new tie; see tie() for more.

Definition at line 311 of file basic_ios.h.

unget()

template<typename _CharT , typename _Traits >

Unextracting the previous character.

Returns

*this

If rdbuf() is not null, calls rdbuf()->sungetc(c).

If rdbuf() is null or if sungetc() fails, sets badbit in the error state.

Note

This function first clears eofbit. Since no characters are extracted, the next call to gcount() will return 0, as required by DR 60.

Definition at line 797 of file istream.tcc.

References std::basic_istream< _CharT, _Traits >::_M_gcount, std::basic_ios< _CharT, _Traits >::clear(), std::ios_base::eofbit, std::ios_base::goodbit, and std::basic_ios< _CharT, _Traits >::rdstate().

Referenced by std::__detail::operator>>().

unsetf()

void std::ios_base::unsetf ( fmtflags __mask) inlineinherited

Clearing format flags.

Parameters

__mask The flags to unset.

This function clears __mask in the format flags.

Definition at line 741 of file ios_base.h.

view()

template<typename _CharT , typename _Traits , typename _Alloc >

widen()

template<typename _CharT , typename _Traits >

char_type std::basic_ios< _CharT, _Traits >::widen ( char __c) const inlineinherited

Widens characters.

Parameters

__c The character to widen.

Returns

The widened character.

Maps a character of char to a character of char_type.

Returns the result of

std::use_facet<ctype<char_type> >(getloc()).widen(c)

char_type widen(char __c) const

Widens characters.

Additional l10n notes are at https://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html

Definition at line 451 of file basic_ios.h.

Referenced by std::endl(), std::basic_ios< _CharT, _Traits >::fill(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::operator<<(), std::operator<<(), and std::tr2::operator>>().

width() [1/2]

streamsize std::ios_base::width ( ) const inlineinherited

width() [2/2]

Changing flags.

Parameters

__wide The new width value.

Returns

The previous value of width().

Definition at line 784 of file ios_base.h.

xalloc()

static int std::ios_base::xalloc ( ) throw ( ) staticinherited

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.

__noreplace

const openmode std::ios_base::__noreplace staticinherited

_M_callbacks

_Callback_list* std::ios_base::_M_callbacks protectedinherited

_M_ctype

template<typename _CharT , typename _Traits >

_M_exception

iostate std::ios_base::_M_exception protectedinherited

_M_fill

template<typename _CharT , typename _Traits >

| | mutableprotectedinherited | | ---------------------------- |

_M_fill_init

template<typename _CharT , typename _Traits >

| | mutableprotectedinherited | | ---------------------------- |

_M_flags

_M_gcount

template<typename _CharT , typename _Traits >

The number of characters extracted in the previous unformatted function; see gcount().

Definition at line 84 of file istream.

Referenced by std::basic_istream< _CharT, _Traits >::~basic_istream(), std::basic_istream< _CharT, _Traits >::gcount(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< char >::get(), std::basic_istream< char >::ignore(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_istream< char >::operator>>(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_istream< char >::putback(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::readsome(), std::basic_istream< char >::readsome(), std::basic_istream< char >::sync(), and std::basic_istream< _CharT, _Traits >::unget().

_M_ios_locale

locale std::ios_base::_M_ios_locale protectedinherited

_M_local_word

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

_M_num_get

template<typename _CharT , typename _Traits >

_M_num_put

template<typename _CharT , typename _Traits >

_M_precision

_M_streambuf

template<typename _CharT , typename _Traits >

_M_streambuf_state

iostate std::ios_base::_M_streambuf_state protectedinherited

_M_tie

template<typename _CharT , typename _Traits >

_M_width

_M_word

_Words* std::ios_base::_M_word protectedinherited

_M_word_size

int std::ios_base::_M_word_size protectedinherited

_M_word_zero

_Words std::ios_base::_M_word_zero protectedinherited

adjustfield

const fmtflags std::ios_base::adjustfield staticinherited

app

ate

badbit

const iostate std::ios_base::badbit staticinherited

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

Definition at line 446 of file ios_base.h.

Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_ostream< _CharT, _Traits >::sentry::~sentry(), std::basic_ios< _CharT, _Traits >::bad(), std::basic_ios< _CharT, _Traits >::fail(), std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< char >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator>>(), std::basic_istream< _CharT, _Traits >::operator>>(), 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< char >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::sync(), std::basic_istream< char >::tellg(), std::basic_istream< _CharT, _Traits >::tellg(), and std::ws().

basefield

beg

binary

boolalpha

cur

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

Definition at line 518 of file ios_base.h.

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

dec

Converts integer input or generates integer output in decimal base.

Definition at line 373 of file ios_base.h.

Referenced by std::dec().

end

eofbit

const iostate std::ios_base::eofbit staticinherited

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

Definition at line 449 of file ios_base.h.

Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::time_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::num_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::basic_ios< _CharT, _Traits >::eof(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< char >::get(), std::time_get< _CharT, _InIter >::get(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), 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_istream< _CharT, _Traits >::seekg(), std::basic_istream< char >::sync(), std::basic_istream< _CharT, _Traits >::unget(), and std::ws().

failbit

const iostate std::ios_base::failbit staticinherited

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 454 of file ios_base.h.

Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), std::basic_ifstream< _CharT, _Traits >::close(), std::basic_ofstream< _CharT, _Traits >::close(), std::basic_fstream< _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< _CharT, _Traits >::fail(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< char >::get(), std::time_get< _CharT, _InIter >::get(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::basic_ifstream< _CharT, _Traits >::open(), std::basic_fstream< _CharT, _Traits >::open(), std::basic_ofstream< _CharT, _Traits >::open(), std::operator<<(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), std::basic_istream< _CharT, _Traits >::operator>>(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), and std::basic_ostream< _CharT, _Traits >::seekp().

fixed

floatfield

const fmtflags std::ios_base::floatfield staticinherited

goodbit

const iostate std::ios_base::goodbit staticinherited

Indicates all is well.

Definition at line 457 of file ios_base.h.

Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::time_get< _CharT, _InIter >::do_get(), 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_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< char >::get(), std::basic_istream< _CharT, _Traits >::get(), std::time_get< _CharT, _InIter >::get(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), std::basic_istream< _CharT, _Traits >::operator>>(), 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< char >::readsome(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::sync(), std::basic_istream< _CharT, _Traits >::unget(), and std::ws().

hex

in

Open for input. Default for ifstream and fstream.

Definition at line 487 of file ios_base.h.

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

internal

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 384 of file ios_base.h.

Referenced by std::internal().

left

oct

Converts integer input or generates integer output in octal base.

Definition at line 391 of file ios_base.h.

Referenced by std::oct().

out

Open for output. Default for ofstream and fstream.

Definition at line 490 of file ios_base.h.

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

right

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

Definition at line 395 of file ios_base.h.

Referenced by std::right().

scientific

const fmtflags std::ios_base::scientific staticinherited

showbase

showpoint

showpos

skipws

trunc

Truncate an existing stream when opening. Default for ofstream.

Definition at line 493 of file ios_base.h.

unitbuf

uppercase


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