std::strstream(3)

NAME

std::strstream -

SYNOPSIS

Inherits std::basic_iostream< char >.

Public Types

typedef char char_type
typedef char_traits< char >::int_type int_type
typedef char_traits< char >::pos_type pos_type
typedef char_traits< char >::off_type off_type
typedef basic_istream< char, Traits > __istream_type
typedef basic_ostream< char, Traits > __ostream_type
typedef Traits traits_type
typedef Traits traits_type
typedef basic_streambuf< char, Traits > streambuf_type
typedef basic_streambuf< char, Traits > streambuf_type
typedef basic_ios< char, Traits > __ios_type
typedef basic_ios< char, Traits > __ios_type
typedef istreambuf_iterator< char, Traits > __istreambuf_iter
typedef num_get< char, __istreambuf_iter > numget_type
typedef ctype< char > ctype_type
typedef ctype< char > ctype_type
typedef ostreambuf_iterator< char, Traits > __ostreambuf_iter
typedef ostreambuf_iterator< char, Traits > __ostreambuf_iter
typedef num_put< char, __ostreambuf_iter > numput_type
typedef num_put< char, __ostreambuf_iter > numput_type
enum event
typedef IosFmtflags fmtflags
This is a bitmask type. typedef IosIostate iostate
This is a bitmask type. typedef IosOpenmode openmode
This is a bitmask type. typedef IosSeekdir seekdir
This is an enumerated type. typedef void(*) event_callback (event, ios_base &, int)

Public Member Functions

strstream ()
strstream (char *, int, ios_base::openmode=ios_base::in|ios_base::out)
virtual ~strstream ()
strstreambuf * rdbuf () const
Accessing the underlying buffer. void freeze (bool=true)
int pcount () const
char * str ()
__istream_type & operator>> (__istream_type &(*__pf)(__istream_type &))
Interface for manipulators. __istream_type & operator>> (bool &n)
Basic arithmetic extractors. __istream_type & operator>> (streambuf_type *sb)
Extracting into another streambuf. streamsize gcount () const
Character counting. int_type get ()
Simple extraction. __istream_type & get (char_type &c)
Simple extraction. __istream_type & get (char_type *s, streamsize n, char_type __delim)
Simple multiple-character extraction. __istream_type & get (char_type *s, streamsize n)
Simple multiple-character extraction. __istream_type & get (streambuf_type &sb, char_type __delim)
Extraction into another streambuf. __istream_type & get (streambuf_type &sb)
Extraction into another streambuf. __istream_type & getline (char_type *s, streamsize n, char_type __delim)
String extraction. __istream_type & getline (char_type *s, streamsize n)
String extraction. __istream_type & ignore (streamsize n=1, int_type __delim=traits_type::eof())
Discarding characters. int_type peek ()
Looking ahead in the stream. __istream_type & read (char_type *s, streamsize n)
Extraction without delimiters. streamsize readsome (char_type *s, streamsize n)
Extraction until the buffer is exhausted, but no more. __istream_type & putback (char_type c)
Unextracting a single character. __istream_type & unget ()
Unextracting the previous character. int sync ()
Synchronizing the stream buffer. pos_type tellg ()
Getting the current read position. __istream_type & seekg (pos_type)
Changing the current read position. __istream_type & seekg (off_type, ios_base::seekdir)
Changing the current read position. operator void * () const
The quick-and-easy status check. bool operator! () const
iostate rdstate () const
Returns the error state of the stream buffer. void clear (iostate state=goodbit)
[Re]sets the error state. void setstate (iostate state)
Sets additional flags in the error state. void M_setstate (iostate state)
bool good () const
Fast error checking. bool eof () const
Fast error checking. bool fail () const
Fast error checking. bool bad () const
Fast error checking. iostate exceptions () const
Throwing exceptions on errors. void exceptions (iostate __except)
Throwing exceptions on errors. basic_ostream< char, Traits > * tie () const
Fetches the current tied stream. basic_ostream< char, Traits > * tie (basic_ostream< char, Traits > *__tiestr)
Ties this stream to an output stream. basic_streambuf< char, Traits > * rdbuf (basic_streambuf< char, Traits > *sb)
Changing the underlying buffer. basic_ios & copyfmt (const basic_ios &__rhs)
char_type fill () const
Retreives the 'empty' character. char_type fill (char_type ch)
Sets a new 'empty' character. locale imbue (const locale &__loc)
Moves to a new locale. char narrow (char_type c, char __dfault) const
Squeezes characters. char_type widen (char c) const
Widens characters. void register_callback (event_callback __fn, int 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 getloc () const
Locale access. const locale & M_getloc () const
Locale access. long & iword (int __ix)
void *& pword (int __ix)
__ostream_type & operator<< (__ostream_type &(*__pf)(__ostream_type &))
Interface for manipulators. __ostream_type & operator<< (long n)
Basic arithmetic inserters. __ostream_type & operator<< (short n)
__ostream_type & operator<< (unsigned short n)
__ostream_type & operator<< (int n)
__ostream_type & operator<< (unsigned int n)
__ostream_type & operator<< (float __f)
__ostream_type & operator<< (streambuf_type *sb)
Extracting from another streambuf. __ostream_type & put (char_type c)
Simple insertion. __ostream_type & write (const char_type *s, streamsize n)
Character string insertion. __ostream_type & flush ()
Synchronizing the stream buffer. pos_type tellp ()
Getting the current write position. __ostream_type & seekp (pos_type)
Changing the current write position. __ostream_type & seekp (off_type, ios_base::seekdir)
Changing the current write position.

Static Public Member Functions

static bool sync_with_stdio (bool sync=true)
Interaction with the standard C I/O objects. static int xalloc () throw ()

Static Public Attributes

static const fmtflags boolalpha
Insert/extract bool in alphabetic rather than numeric format. static const fmtflags dec
Converts integer input or generates integer output in decimal base. static const fmtflags fixed
Generate floating-point output in fixed-point notation. static const fmtflags hex
Converts integer input or generates integer output in hexadecimal base. static const fmtflags internal
designated. static const fmtflags left
generated output. (I.e., the thing you print is flush left.) static const fmtflags oct
Converts integer input or generates integer output in octal base. static const fmtflags right
generated output. (I.e., the thing you print is flush right.) static const fmtflags scientific
Generates floating-point output in scientific notation. static const fmtflags showbase
output. static const fmtflags showpoint
floating-point output. static const fmtflags showpos
Generates a + sign in non-negative generated numeric output. static const fmtflags skipws
Skips leading white space before certain input operations. static const fmtflags unitbuf
Flushes output after each output operation. static const fmtflags uppercase
in generated output. static const fmtflags adjustfield
A mask of left|right|internal. Useful for the 2-arg form of setf. static const fmtflags basefield
A mask of dec|oct|hex. Useful for the 2-arg form of setf. static const fmtflags floatfield
A mask of scientific|fixed. Useful for the 2-arg form of setf. static const iostate badbit
as an irrecoverable read error from a file). static const iostate eofbit
Indicates that an input operation reached the end of an input sequence. static const iostate failbit
desired characters. static const iostate goodbit
Indicates all is well. static const openmode app
Seek to end before each write. static const openmode ate
Open and seek to end immediately after opening. static const openmode binary
http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more. static const openmode in
Open for input. Default for ifstream and fstream. static const openmode out
Open for output. Default for ofstream and fstream. static const openmode trunc
Open for input. Default for ofstream. static const seekdir beg
Request a seek relative to the beginning of the stream. static const seekdir cur
Request a seek relative to the current position within the sequence. static const seekdir end
Request a seek relative to the current end of the sequence.

Protected Member Functions

void init (basic_streambuf< char, Traits > *sb)
All setup is performed here. bool M_check_facet (const locale::facet *__f) const
void M_call_callbacks (event __ev) throw ()
void M_dispose_callbacks (void)
Words & M_grow_words (int index)
void M_init ()

Protected Attributes

streamsize M_gcount
basic_ostream< char, Traits > * M_tie
char_type M_fill
bool M_fill_init
basic_streambuf< char, Traits > * M_streambuf
const ctype_type * M_fctype
const numput_type * M_fnumput
const numget_type * M_fnumget
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

Static Protected Attributes

static const int S_local_word_size

Private Attributes

strstreambuf M_buf

Friends

class sentry
class sentry

Detailed Description

Definition at line 153 of file strstream.

Member Typedef Documentation

typedef char std::strstream::char_type

These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation.

Reimplemented from std::basic_istream< char, Traits >.

Definition at line 156 of file strstream.

typedef IosFmtflags 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:

•: boolalpha

•: dec

•: fixed

•: hex

•: internal

•: left

•: oct

•: right

•: scientific

•: showbase

•: showpoint

•: showpos

•: skipws

•: unitbuf

•: uppercase

•: adjustfield

•: basefield

•: floatfield

Definition at line 212 of file ios_base.h.

typedef IosIostate 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:

•: badbit

•: eofbit

•: failbit

•: goodbit

Definition at line 269 of file ios_base.h.

typedef IosOpenmode 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:

•: app

•: ate

•: binary

•: in

•: out

•: trunc

Definition at line 296 of file ios_base.h.

typedef IosSeekdir std::ios_base::seekdir `[inherited]`

This is an enumerated type.

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

•: beg

•: cur, equivalent to SEEKCUR in the C standard library.

•: end, equivalent to SEEKEND in the C standard library.

Definition at line 323 of file ios_base.h.

typedef void(*) std::ios_base::event_callback(event, ios_base &, int) `[inherited]`

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

Definition at line 355 of file ios_base.h.

Member Enumeration Documentation

enum std::ios_base::event `[inherited]`

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

Definition at line 345 of file ios_base.h.

Member Function Documentation

strstreambuf * std::strstream::rdbuf () const

Accessing the underlying buffer.

Returns:

The current stream buffer.

This does not change the state of the stream.

Reimplemented from std::basic_ios< char, Traits >.

Definition at line 402 of file strstream.cc.

__istream_type& std::basic_istream< char , Traits >::operator>> (__istream_type &(*)(__istream_type &) __pf) `[inherited]`

Interface for manipulators.

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

__istream_type& std::basic_istream< char , Traits >::operator>> (bool & n) `[inherited]`

Basic arithmetic extractors.

Parameters:

A variable of builtin type.

Returns:

*this if successful

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

__istream_type& std::basic_istream< char , Traits >::operator>> (streambuf_type * sb) `[inherited]`

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 onject 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:

•: the input stream reaches end-of-file,

•: insertion into the output buffer fails (in this case, the character that would have been inserted is not extracted), or

•: an exception occurs (and in this case is caught)

If the function inserts no characters, failbit is set.

streamsize std::basic_istream< char , Traits >::gcount () const `[inline, inherited]`

Character counting.

Returns:

The number of characters extracted by the previous unformatted input function dispatched for this stream.

Definition at line 243 of file istream.

int_type std::basic_istream< char , Traits >::get (void) `[inherited]`

Simple extraction.

Returns:

A character, or eof().

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

__istream_type& std::basic_istream< char , Traits >::get (char_type & c) `[inherited]`

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.

__istream_type& std::basic_istream< char , Traits >::get (char_type * s, streamsize n, char_type __delim) `[inherited]`

Simple multiple-character extraction.

Parameters:

s Pointer to an array.
n Maximum number of characters to store in s.
delim A 'stop' character.

Returns:

*this

Characters are extracted and stored into s until one of the following happens:

•: n-1 characters are stored

•: the input sequence reaches EOF

•: the next character equals delim, in which case the character is not extracted

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

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

Note:

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

__istream_type& std::basic_istream< char , Traits >::get (char_type * s, streamsize n) `[inline, inherited]`

Simple multiple-character extraction.

Parameters:

s Pointer to an array.
n Maximum number of characters to store in s.

Returns:

*this

Returns get(s,n,widen('

Definition at line 327 of file istream.

__istream_type& std::basic_istream< char , Traits >::get (streambuf_type & sb, char_type __delim) `[inherited]`

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:

•: the input sequence reaches EOF

•: insertion into the output buffer fails (in this case, the character that would have been inserted is not extracted)

•: the next character equals delim (in this case, the character is not extracted)

•: an exception occurs (and in this case is caught)

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

__istream_type& std::basic_istream< char , Traits >::get (streambuf_type & sb) `[inline, inherited]`

Extraction into another streambuf.

Parameters:

sb A streambuf in which to store data.

Returns:

*this

Returns get(sb,widen('

Definition at line 360 of file istream.

__istream_type& std::basic_istream< char , Traits >::getline (char_type * s, streamsize n, char_type __delim) `[inherited]`

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.

__istream_type& std::basic_istream< char , Traits >::getline (char_type * s, streamsize n) `[inline, inherited]`

String extraction.

Parameters:

s A character array in which to store the data.
n Maximum number of characters to extract.

Returns:

*this

Returns getline(s,n,widen('

Definition at line 400 of file istream.

__istream_type& std::basic_istream< char , Traits >::ignore (streamsize n = `1`, int_type __delim = `traits_type::eof()`) `[inherited]`

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:

•: if n != std::numeric_limits<int>::max(), n characters are extracted

•: the input sequence reaches end-of-file

•: the next character equals delim (in this case, the character is extracted); note that this condition will never occur if delim equals traits::eof().

int_type std::basic_istream< char , Traits >::peek (void) `[inherited]`

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.

__istream_type& std::basic_istream< char , Traits >::read (char_type * s, streamsize n) `[inherited]`

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:

•: n characters are stored

•: the input sequence reaches end-of-file, in which case the error state is set to failbit|eofbit.

Note:

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

streamsize std::basic_istream< char , Traits >::readsome (char_type * s, streamsize n) `[inherited]`

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:

•: if A == -1, sets eofbit and extracts no characters

•: if A == 0, extracts no characters

•: if A > 0, extracts min(A,n)

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

__istream_type& std::basic_istream< char , Traits >::putback (char_type c) `[inherited]`

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:

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

__istream_type& std::basic_istream< char , Traits >::unget (void) `[inherited]`

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:

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

int std::basic_istream< char , Traits >::sync (void) `[inherited]`

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().

pos_type std::basic_istream< char , Traits >::tellg (void) `[inherited]`

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().

__istream_type& std::basic_istream< char , Traits >::seekg (pos_type) `[inherited]`

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

__istream_type& std::basic_istream< char , Traits >::seekg (off_type, ios_base::seekdir) `[inherited]`

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

std::basic_ios< char , Traits >::operator void * () const `[inline, inherited]`

The quick-and-easy status check.

This allows you to write constructs such as 'if (!a_stream) ...' and 'while (a_stream) ...'

Definition at line 109 of file basic_ios.h.

References std::basic_ios< CharT, Traits >::fail().

iostate std::basic_ios< char , Traits >::rdstate () const `[inline, inherited]`

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 125 of file basic_ios.h.

void std::basic_ios< char , Traits >::clear (iostate state = goodbit) `[inherited]`

[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.

void std::basic_ios< char , Traits >::setstate (iostate state) `[inline, inherited]`

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 145 of file basic_ios.h.

References std::basic_ios< CharT, Traits >::clear().

bool std::basic_ios< char , Traits >::good () const `[inline, inherited]`

Fast error checking.

Returns:

True if no error flags are set.

A wrapper around rdstate.

Definition at line 168 of file basic_ios.h.

References std::basic_ios< CharT, Traits >::rdstate().

bool std::basic_ios< char , Traits >::eof () const `[inline, inherited]`

Fast error checking.

Returns:

True if the eofbit is set.

Note that other iostate flags may also be set.

Definition at line 178 of file basic_ios.h.

References std::ios_base::eofbit.

bool std::basic_ios< char , Traits >::fail () const `[inline, inherited]`

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 189 of file basic_ios.h.

References std::ios_base::badbit, and std::ios_base::failbit.

bool std::basic_ios< char , Traits >::bad () const `[inline, inherited]`

Fast error checking.

Returns:

True if the badbit is set.

Note that other iostate flags may also be set.

Definition at line 199 of file basic_ios.h.

References std::ios_base::badbit.

iostate std::basic_ios< char , Traits >::exceptions () const `[inline, inherited]`

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 210 of file basic_ios.h.

void std::basic_ios< char , Traits >::exceptions (iostate __except) `[inline, inherited]`

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

  #include <iostream>
  #include <fstream>
  #include <exception>
  int main()
  {
      std::set_terminate (__gnu_cxx::__verbose_terminate_handler);
      std::ifstream f ('/etc/motd');
      std::cerr << 'Setting badbit0;
      f.setstate (std::ios_base::badbit);
      std::cerr << 'Setting exception mask0;
      f.exceptions (std::ios_base::badbit);
  }

Definition at line 245 of file basic_ios.h.

References std::basic_ios< CharT, Traits >::clear().

basic_ostream<char , Traits >* std::basic_ios< char , Traits >::tie () const `[inline, inherited]`

Fetches the current tied stream.

Returns:

A pointer to the tied stream, or NULL if the stream is not tied.

A stream may be tied (or synchronized) to a second output stream. When this stream performs any I/O, the tied stream is first flushed. For example, std::cin is tied to std::cout.

Definition at line 282 of file basic_ios.h.

basic_ostream<char , Traits >* std::basic_ios< char , Traits >::tie (basic_ostream< char , Traits > * __tiestr) `[inline, inherited]`

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 294 of file basic_ios.h.

basic_streambuf<char , Traits >* std::basic_ios< char , Traits >::rdbuf (basic_streambuf< char , Traits > * sb) `[inherited]`

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.

basic_ios& std::basic_ios< char , Traits >::copyfmt (const basic_ios< char, Traits > & __rhs) `[inherited]`

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

char_type std::basic_ios< char , Traits >::fill () const `[inline, inherited]`

Retreives the 'empty' character.

Returns:

The current fill character.

It defaults to a space (' ') in the current locale.

Definition at line 342 of file basic_ios.h.

References std::basic_ios< CharT, Traits >::widen().

char_type std::basic_ios< char , Traits >::fill (char_type ch) `[inline, inherited]`

Sets a new 'empty' character.

Parameters:

ch The new character.

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 362 of file basic_ios.h.

References std::basic_ios< CharT, Traits >::fill().

locale std::basic_ios< char , Traits >::imbue (const locale & __loc) `[inherited]`

Moves to a new locale.

Parameters:

loc The new locale.

Returns:

The previous locale.

Calls ios_base::imbue(loc), and if a stream buffer is associated with this stream, calls that buffer's pubimbue(loc).

Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/22_locale/howto.html

Reimplemented from std::ios_base.

char std::basic_ios< char , Traits >::narrow (char_type c, char __dfault) const `[inherited]`

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)

Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/22_locale/howto.html

char_type std::basic_ios< char , Traits >::widen (char c) const `[inherited]`

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)

Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/22_locale/howto.html

void std::basic_ios< char , Traits >::init (basic_streambuf< char , Traits > * sb) `[protected, inherited]`

All setup is performed here.

This is called from the public constructor. It is not virtual and cannot be redefined. The second argument, cache, is used to initialize the standard streams without allocating memory.

void std::ios_base::register_callback (event_callback __fn, int index) `[inherited]`

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

Definition at line 333 of file ios.cc.

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

Access to format flags.

Returns:

The format control flags for both input and output.

Definition at line 472 of file ios_base.h.

Referenced by std::basic_ios< CharT, Traits >::copyfmt(), std::money_get< CharT, InIter >::do_get(), std::num_get< CharT, InIter >::do_get(), std::money_put< CharT, OutIter >::do_put(), std::num_put< CharT, OutIter >::do_put(), std::num_put< CharT, OutIter >::M_convert_float(), std::num_put< CharT, OutIter >::M_convert_int(), std::num_get< CharT, InIter >::M_extract_int(), std::num_put< CharT, OutIter >::M_group_int(), std::num_put< CharT, OutIter >::M_widen_int(), __gnu_cxx::operator<<(), std::basic_ostream< CharT, Traits >::operator<<(), std::basic_ostream< char >::operator<<(), std::operator<<(), std::num_base::S_format_float(), std::num_base::S_format_int(), std::__pad< CharT, Traits >::S_pad(), and std::basic_istream< CharT, Traits >::sentry::sentry().

fmtflags std::ios_base::flags (fmtflags __fmtfl) `[inline, inherited]`

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 482 of file ios_base.h.

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

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 498 of file ios_base.h.

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().

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

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 515 of file ios_base.h.

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

Clearing format flags.

Parameters:

mask The flags to unset.

This function clears mask in the format flags.

Definition at line 530 of file ios_base.h.

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

streamsize std::ios_base::precision () const `[inline, inherited]`

Flags access.

Returns:

The precision to generate on certain output operations.

Definition at line 542 of file ios_base.h.

Referenced by std::basic_ios< CharT, Traits >::copyfmt(), std::num_put< CharT, OutIter >::M_convert_float(), std::operator<<(), and std::operator>>().

streamsize std::ios_base::precision (streamsize __prec) `[inline, inherited]`

Changing flags.

Parameters:

prec The new precision value.

Returns:

The previous value of precision().

Definition at line 550 of file ios_base.h.

streamsize std::ios_base::width () const `[inline, inherited]`

Flags access.

Returns:

The minimum field width to generate on output operations.

Definition at line 564 of file ios_base.h.

Referenced by std::basic_ios< CharT, Traits >::copyfmt(), std::money_put< CharT, OutIter >::do_put(), std::num_put< CharT, OutIter >::do_put(), std::num_put< CharT, OutIter >::M_convert_float(), std::num_put< CharT, OutIter >::M_convert_int(), std::num_put< CharT, OutIter >::M_insert(), __gnu_cxx::operator<<(), std::operator<<(), and std::operator>>().

streamsize std::ios_base::width (streamsize __wide) `[inline, inherited]`

Changing flags.

Parameters:

wide The new width value.

Returns:

The previous value of width().

Definition at line 572 of file ios_base.h.

bool std::ios_base::sync_with_stdio (bool sync = `true`) `[static, inherited]`

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.

Definition at line 364 of file ios.cc.

locale std::ios_base::getloc () const `[inline, inherited]`

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 614 of file ios_base.h.

Referenced by std::basic_ios< CharT, Traits >::copyfmt(), std::money_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::money_put< CharT, OutIter >::do_put(), std::num_get< CharT, InIter >::M_extract_float(), std::num_get< CharT, InIter >::M_extract_int(), std::time_get< CharT, InIter >::M_extract_via_format(), std::num_put< CharT, OutIter >::M_widen_float(), std::num_put< CharT, OutIter >::M_widen_int(), std::operator>>(), std::time_put< CharT, OutIter >::put(), std::__pad< CharT, Traits >::S_pad(), and std::ws().

const locale& std::ios_base::M_getloc () const `[inline, inherited]`

Locale access.

Returns:

A reference to the current locale.

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

Definition at line 624 of file ios_base.h.

int std::ios_base::xalloc () throw () `[static, inherited]`

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

Definition at line 241 of file ios.cc.

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

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

Definition at line 637 of file ios_base.h.

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

Todo

Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more.

Definition at line 648 of file ios_base.h.

__ostream_type& std::basic_ostream< char , Traits >::operator<< (__ostream_type &(*)(__ostream_type &) __pf) `[inherited]`

Interface for manipulators.

Manuipulators such as std::endl and std::hex use these functions in constructs like 'std::cout << std::endl'. For more information, see the iomanip header.

__ostream_type& std::basic_ostream< char , Traits >::operator<< (long n) `[inherited]`

Basic arithmetic inserters.

Parameters:

A variable of builtin type.

Returns:

*this if successful

These functions use the stream's current locale (specifically, the num_get facet) to perform numeric formatting.

__ostream_type& std::basic_ostream< char , Traits >::operator<< (streambuf_type * sb) `[inherited]`

Extracting from 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 onject and has the same error handling behavior.

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

Characters are extracted from sb and inserted into *this until one of the following occurs:

•: the input stream reaches end-of-file,

•: insertion into the output sequence fails (in this case, the character that would have been inserted is not extracted), or

•: an exception occurs while getting a character from sb, which sets failbit in the error state

If the function inserts no characters, failbit is set.

__ostream_type& std::basic_ostream< char , Traits >::put (char_type c) `[inherited]`

Simple insertion.

Parameters:

c The character to insert.

Returns:

*this

Tries to insert c.

Note:

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

__ostream_type& std::basic_ostream< char , Traits >::write (const char_type * s, streamsize n) `[inherited]`

Character string insertion.

Parameters:

s The array to insert.
n Maximum number of characters to insert.

Returns:

*this

Characters are copied from s and inserted into the stream until one of the following happens:

•: n characters are inserted

•: inserting into the output sequence fails (in this case, badbit will be set in the stream's error state)

Note:

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

__ostream_type& std::basic_ostream< char , Traits >::flush () `[inherited]`

Synchronizing the stream buffer.

Returns:

*this

If rdbuf() is a null pointer, changes nothing.

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

pos_type std::basic_ostream< char , Traits >::tellp () `[inherited]`

Getting the current write position.

Returns:

A file position object.

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

__ostream_type& std::basic_ostream< char , Traits >::seekp (pos_type) `[inherited]`

Changing the current write position.

Parameters:

pos A file position object.

Returns:

*this

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

__ostream_type& std::basic_ostream< char , Traits >::seekp (off_type, ios_base::seekdir) `[inherited]`

Changing the current write 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.

Member Data Documentation

const ios_base::fmtflags std::ios_base::boolalpha `[static, inherited]`

Insert/extract bool in alphabetic rather than numeric format.

Definition at line 214 of file ios_base.h.

Referenced by std::boolalpha(), std::num_put< CharT, OutIter >::do_put(), and std::noboolalpha().

const ios_base::fmtflags std::ios_base::dec `[static, inherited]`

Converts integer input or generates integer output in decimal base.

Definition at line 216 of file ios_base.h.

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

const ios_base::fmtflags std::ios_base::fixed `[static, inherited]`

Generate floating-point output in fixed-point notation.

Definition at line 218 of file ios_base.h.

Referenced by std::fixed(), std::num_put< CharT, OutIter >::M_convert_float(), and std::num_base::S_format_float().

const ios_base::fmtflags std::ios_base::hex `[static, inherited]`

Converts integer input or generates integer output in hexadecimal base.

Definition at line 220 of file ios_base.h.

Referenced by std::num_get< CharT, InIter >::do_get(), std::num_put< CharT, OutIter >::do_put(), std::hex(), std::int_to_char(), std::num_get< CharT, InIter >::M_extract_int(), std::num_put< CharT, OutIter >::M_group_int(), std::num_put< CharT, OutIter >::M_widen_int(), std::basic_ostream< CharT, Traits >::operator<<(), std::basic_ostream< char >::operator<<(), std::operator<<(), std::operator>>(), and std::num_base::S_format_int().

const ios_base::fmtflags std::ios_base::internal `[static, inherited]`

designated.

Definition at line 224 of file ios_base.h.

Referenced by std::num_get< CharT, InIter >::do_get(), std::money_put< CharT, OutIter >::do_put(), std::num_put< CharT, OutIter >::do_put(), std::internal(), and std::__pad< CharT, Traits >::S_pad().

const ios_base::fmtflags std::ios_base::left `[static, inherited]`

generated output. (I.e., the thing you print is flush left.)

Definition at line 227 of file ios_base.h.

Referenced by std::money_put< CharT, OutIter >::do_put(), std::left(), __gnu_cxx::operator<<(), and std::__pad< CharT, Traits >::S_pad().

const ios_base::fmtflags std::ios_base::oct `[static, inherited]`

Converts integer input or generates integer output in octal base.

Definition at line 229 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_group_int(), std::num_put< CharT, OutIter >::M_widen_int(), std::oct(), std::basic_ostream< CharT, Traits >::operator<<(), std::basic_ostream< char >::operator<<(), std::operator<<(), std::operator>>(), and std::num_base::S_format_int().

const ios_base::fmtflags std::ios_base::right `[static, inherited]`

generated output. (I.e., the thing you print is flush right.)

Definition at line 232 of file ios_base.h.

Referenced by std::right().

const ios_base::fmtflags std::ios_base::scientific `[static, inherited]`

Generates floating-point output in scientific notation.

Definition at line 234 of file ios_base.h.

Referenced by std::num_base::S_format_float(), and std::scientific().

const ios_base::fmtflags std::ios_base::showbase `[static, inherited]`

output.

Definition at line 237 of file ios_base.h.

Referenced by std::money_get< CharT, InIter >::do_get(), std::num_get< CharT, InIter >::do_get(), std::money_put< CharT, OutIter >::do_put(), std::num_put< CharT, OutIter >::do_put(), std::int_to_char(), std::num_put< CharT, OutIter >::M_group_int(), std::num_put< CharT, OutIter >::M_widen_int(), std::noshowbase(), std::num_base::S_format_int(), and std::showbase().

const ios_base::fmtflags std::ios_base::showpoint `[static, inherited]`

floating-point output.

Definition at line 240 of file ios_base.h.

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

const ios_base::fmtflags std::ios_base::showpos `[static, inherited]`

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

Definition at line 242 of file ios_base.h.

Referenced by std::num_get< CharT, InIter >::do_get(), std::num_put< CharT, OutIter >::do_put(), std::int_to_char(), std::noshowpos(), std::num_base::S_format_float(), std::num_base::S_format_int(), and std::showpos().

const ios_base::fmtflags std::ios_base::skipws `[static, inherited]`

Skips leading white space before certain input operations.

Definition at line 244 of file ios_base.h.

Referenced by std::ios_base::M_init(), std::noskipws(), std::basic_istream< CharT, Traits >::sentry::sentry(), and std::skipws().

const ios_base::fmtflags std::ios_base::unitbuf `[static, inherited]`

Flushes output after each output operation.

Definition at line 246 of file ios_base.h.

Referenced by std::nounitbuf(), std::ios_base::Init::S_ios_create(), std::unitbuf(), and std::basic_ostream< CharT, Traits >::sentry::~sentry().

const ios_base::fmtflags std::ios_base::uppercase `[static, inherited]`

in generated output.

Definition at line 249 of file ios_base.h.

Referenced by std::num_get< CharT, InIter >::do_get(), std::num_put< CharT, OutIter >::do_put(), std::int_to_char(), std::nouppercase(), std::num_base::S_format_float(), std::num_base::S_format_int(), and std::uppercase().

const ios_base::fmtflags std::ios_base::adjustfield `[static, inherited]`

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

Definition at line 251 of file ios_base.h.

Referenced by std::money_put< CharT, OutIter >::do_put(), std::internal(), std::left(), std::right(), and std::__pad< CharT, Traits >::S_pad().

const ios_base::fmtflags std::ios_base::basefield `[static, inherited]`

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

Definition at line 253 of file ios_base.h.

Referenced by std::dec(), std::num_get< CharT, InIter >::do_get(), std::num_put< CharT, OutIter >::do_put(), std::hex(), std::int_to_char(), std::num_get< CharT, InIter >::M_extract_int(), std::num_put< CharT, OutIter >::M_group_int(), std::num_put< CharT, OutIter >::M_widen_int(), std::oct(), std::basic_ostream< CharT, Traits >::operator<<(), std::basic_ostream< char >::operator<<(), std::operator<<(), std::operator>>(), and std::num_base::S_format_int().

const ios_base::fmtflags std::ios_base::floatfield `[static, inherited]`

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

Definition at line 255 of file ios_base.h.

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

const ios_base::iostate std::ios_base::badbit `[static, inherited]`

as an irrecoverable read error from a file).

Definition at line 272 of file ios_base.h.

Referenced by 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::ios_base::M_grow_words(), std::operator<<(), std::basic_ostream< CharT, Traits >::operator<<(), std::operator>>(), std::basic_istream< CharT, Traits >::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 ios_base::iostate std::ios_base::eofbit `[static, inherited]`

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

Definition at line 274 of file ios_base.h.

Referenced by std::money_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::num_get< CharT, InIter >::M_extract_float(), std::num_get< CharT, InIter >::M_extract_int(), 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 ios_base::iostate std::ios_base::failbit `[static, inherited]`

desired characters.

Definition at line 278 of file ios_base.h.

Referenced by std::basic_fstream< CharT, Traits >::close(), std::basic_ofstream< CharT, Traits >::close(), std::basic_ifstream< CharT, Traits >::close(), std::money_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_ios< char, Traits >::fail(), std::basic_istream< CharT, Traits >::get(), std::getline(), std::basic_istream< CharT, Traits >::getline(), 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 >::open(), std::basic_ofstream< CharT, Traits >::open(), std::basic_ifstream< CharT, Traits >::open(), std::operator<<(), std::basic_ostream< CharT, Traits >::operator<<(), std::basic_istream< CharT, Traits >::operator>>(), 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 ios_base::iostate std::ios_base::goodbit `[static, inherited]`

Indicates all is well.

Definition at line 280 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::basic_istream< CharT, Traits >::operator>>(), 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(), std::basic_istream< CharT, Traits >::unget(), and std::basic_ostream< CharT, Traits >::write().

const ios_base::openmode std::ios_base::app `[static, inherited]`

Seek to end before each write.

Definition at line 298 of file ios_base.h.

Referenced by std::basic_stringbuf< CharT, Traits, Alloc >::M_stringbuf_init().

const ios_base::openmode std::ios_base::ate `[static, inherited]`

Open and seek to end immediately after opening.

Definition at line 300 of file ios_base.h.

Referenced by std::basic_stringbuf< CharT, Traits, Alloc >::M_stringbuf_init(), and std::basic_filebuf< CharT, Traits >::open().

const ios_base::openmode std::ios_base::binary `[static, inherited]`

http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more.

Definition at line 305 of file ios_base.h.

const ios_base::openmode std::ios_base::in `[static, inherited]`

Open for input. Default for ifstream and fstream.

Definition at line 307 of file ios_base.h.

Referenced by std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::M_is_indeterminate(), std::basic_stringbuf< CharT, Traits, Alloc >::M_really_sync(), std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::M_set_determinate(), std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::M_set_indeterminate(), std::basic_filebuf< CharT, Traits >::M_underflow_common(), std::basic_ifstream< CharT, Traits >::open(), std::basic_filebuf< CharT, Traits >::pbackfail(), std::ios_base::Init::S_ios_create(), std::basic_istream< CharT, Traits >::seekg(), std::strstreambuf::seekoff(), std::basic_stringbuf< CharT, Traits, Alloc >::seekoff(), std::basic_filebuf< CharT, Traits >::seekoff(), std::basic_stringbuf< CharT, Traits, Alloc >::seekpos(), std::basic_streambuf< char, Traits >::setg(), std::basic_filebuf< CharT, Traits >::showmanyc(), and std::basic_istream< CharT, Traits >::tellg().

const ios_base::openmode std::ios_base::out `[static, inherited]`

Open for output. Default for ofstream and fstream.

Definition at line 309 of file ios_base.h.

Referenced by std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::M_is_indeterminate(), std::basic_stringbuf< CharT, Traits, Alloc >::M_really_sync(), std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::M_set_determinate(), std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::M_set_indeterminate(), std::basic_filebuf< CharT, Traits >::M_underflow_common(), std::basic_ofstream< CharT, Traits >::open(), std::basic_stringbuf< CharT, Traits, Alloc >::overflow(), std::basic_filebuf< CharT, Traits >::overflow(), std::basic_filebuf< CharT, Traits >::pbackfail(), std::ios_base::Init::S_ios_create(), std::strstreambuf::seekoff(), std::basic_stringbuf< CharT, Traits, Alloc >::seekoff(), std::basic_filebuf< CharT, Traits >::seekoff(), std::basic_ostream< CharT, Traits >::seekp(), std::basic_stringbuf< CharT, Traits, Alloc >::seekpos(), std::basic_streambuf< char, Traits >::setp(), std::basic_stringbuf< CharT, Traits, Alloc >::str(), std::basic_ostream< CharT, Traits >::tellp(), and std::basic_streambuf< char, Traits >::uflow().

const ios_base::openmode std::ios_base::trunc `[static, inherited]`

Open for input. Default for ofstream.

Definition at line 311 of file ios_base.h.

const ios_base::seekdir std::ios_base::beg `[static, inherited]`

Request a seek relative to the beginning of the stream.

Definition at line 325 of file ios_base.h.

Referenced by std::strstreambuf::seekoff(), std::strstreambuf::seekpos(), and std::basic_filebuf< CharT, Traits >::seekpos().

const ios_base::seekdir std::ios_base::cur `[static, inherited]`

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

Definition at line 327 of file ios_base.h.

Referenced by std::basic_filebuf< CharT, Traits >::M_really_overflow(), std::basic_filebuf< CharT, Traits >::M_underflow_common(), std::basic_filebuf< CharT, Traits >::pbackfail(), std::strstreambuf::seekoff(), std::basic_stringbuf< CharT, Traits, Alloc >::seekoff(), std::basic_filebuf< CharT, Traits >::seekoff(), std::basic_filebuf< CharT, __gnu_cxx::enc_char_traits< CharT > >::sync(), std::basic_istream< CharT, Traits >::tellg(), and std::basic_ostream< CharT, Traits >::tellp().

const ios_base::seekdir std::ios_base::end `[static, inherited]`

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

Definition at line 329 of file ios_base.h.

Referenced by std::basic_filebuf< CharT, Traits >::open(), std::strstreambuf::seekoff(), and std::basic_stringbuf< CharT, Traits, Alloc >::seekoff().

Author

Generated automatically by Doxygen for libstdc++-v3 Source from the source code.

NAME

SYNOPSIS

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Static Protected Attributes

Private Attributes

Friends

Detailed Description

Member Typedef Documentation

typedef char std::strstream::char_type

typedef IosFmtflags std::ios_base::fmtflags [inherited]

typedef IosIostate std::ios_base::iostate [inherited]

typedef IosOpenmode std::ios_base::openmode [inherited]

typedef IosSeekdir std::ios_base::seekdir [inherited]

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

Member Enumeration Documentation

enum std::ios_base::event [inherited]

Member Function Documentation

strstreambuf * std::strstream::rdbuf () const

__istream_type& std::basic_istream< char , Traits >::operator>> (__istream_type &(*)(__istream_type &) __pf) [inherited]

__istream_type& std::basic_istream< char , Traits >::operator>> (bool & n) [inherited]

__istream_type& std::basic_istream< char , Traits >::operator>> (streambuf_type * sb) [inherited]

streamsize std::basic_istream< char , Traits >::gcount () const [inline, inherited]

int_type std::basic_istream< char , Traits >::get (void) [inherited]

__istream_type& std::basic_istream< char , Traits >::get (char_type & c) [inherited]

__istream_type& std::basic_istream< char , Traits >::get (char_type * s, streamsize n, char_type __delim) [inherited]

__istream_type& std::basic_istream< char , Traits >::get (char_type * s, streamsize n) [inline, inherited]

__istream_type& std::basic_istream< char , Traits >::get (streambuf_type & sb, char_type __delim) [inherited]

__istream_type& std::basic_istream< char , Traits >::get (streambuf_type & sb) [inline, inherited]

__istream_type& std::basic_istream< char , Traits >::getline (char_type * s, streamsize n, char_type __delim) [inherited]

__istream_type& std::basic_istream< char , Traits >::getline (char_type * s, streamsize n) [inline, inherited]

__istream_type& std::basic_istream< char , Traits >::ignore (streamsize n = 1, int_type __delim = traits_type::eof()) [inherited]

int_type std::basic_istream< char , Traits >::peek (void) [inherited]

__istream_type& std::basic_istream< char , Traits >::read (char_type * s, streamsize n) [inherited]

streamsize std::basic_istream< char , Traits >::readsome (char_type * s, streamsize n) [inherited]

__istream_type& std::basic_istream< char , Traits >::putback (char_type c) [inherited]

__istream_type& std::basic_istream< char , Traits >::unget (void) [inherited]

int std::basic_istream< char , Traits >::sync (void) [inherited]

pos_type std::basic_istream< char , Traits >::tellg (void) [inherited]

__istream_type& std::basic_istream< char , Traits >::seekg (pos_type) [inherited]

__istream_type& std::basic_istream< char , Traits >::seekg (off_type, ios_base::seekdir) [inherited]

std::basic_ios< char , Traits >::operator void * () const [inline, inherited]

iostate std::basic_ios< char , Traits >::rdstate () const [inline, inherited]

void std::basic_ios< char , Traits >::clear (iostate state = goodbit) [inherited]

void std::basic_ios< char , Traits >::setstate (iostate state) [inline, inherited]

bool std::basic_ios< char , Traits >::good () const [inline, inherited]

bool std::basic_ios< char , Traits >::eof () const [inline, inherited]

bool std::basic_ios< char , Traits >::fail () const [inline, inherited]

bool std::basic_ios< char , Traits >::bad () const [inline, inherited]

iostate std::basic_ios< char , Traits >::exceptions () const [inline, inherited]

void std::basic_ios< char , Traits >::exceptions (iostate __except) [inline, inherited]

basic_ostream<char , Traits >* std::basic_ios< char , Traits >::tie () const [inline, inherited]

basic_ostream<char , Traits >* std::basic_ios< char , Traits >::tie (basic_ostream< char , Traits > * __tiestr) [inline, inherited]

basic_streambuf<char , Traits >* std::basic_ios< char , Traits >::rdbuf (basic_streambuf< char , Traits > * sb) [inherited]

basic_ios& std::basic_ios< char , Traits >::copyfmt (const basic_ios< char, Traits > & __rhs) [inherited]

char_type std::basic_ios< char , Traits >::fill () const [inline, inherited]

char_type std::basic_ios< char , Traits >::fill (char_type ch) [inline, inherited]

locale std::basic_ios< char , Traits >::imbue (const locale & __loc) [inherited]

char std::basic_ios< char , Traits >::narrow (char_type c, char __dfault) const [inherited]

char_type std::basic_ios< char , Traits >::widen (char c) const [inherited]

void std::basic_ios< char , Traits >::init (basic_streambuf< char , Traits > * sb) [protected, inherited]

void std::ios_base::register_callback (event_callback __fn, int index) [inherited]

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

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

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

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

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

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

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

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

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

bool std::ios_base::sync_with_stdio (bool sync = true) [static, inherited]

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

const locale& std::ios_base::M_getloc () const [inline, inherited]

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

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

typedef IosFmtflags std::ios_base::fmtflags `[inherited]`

typedef IosIostate std::ios_base::iostate `[inherited]`

typedef IosOpenmode std::ios_base::openmode `[inherited]`

typedef IosSeekdir std::ios_base::seekdir `[inherited]`

typedef void(*) std::ios_base::event_callback(event, ios_base &, int) `[inherited]`

enum std::ios_base::event `[inherited]`

__istream_type& std::basic_istream< char , Traits >::operator>> (__istream_type &(*)(__istream_type &) __pf) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::operator>> (bool & n) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::operator>> (streambuf_type * sb) `[inherited]`

streamsize std::basic_istream< char , Traits >::gcount () const `[inline, inherited]`

int_type std::basic_istream< char , Traits >::get (void) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::get (char_type & c) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::get (char_type * s, streamsize n, char_type __delim) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::get (char_type * s, streamsize n) `[inline, inherited]`

__istream_type& std::basic_istream< char , Traits >::get (streambuf_type & sb, char_type __delim) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::get (streambuf_type & sb) `[inline, inherited]`

__istream_type& std::basic_istream< char , Traits >::getline (char_type * s, streamsize n, char_type __delim) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::getline (char_type * s, streamsize n) `[inline, inherited]`

__istream_type& std::basic_istream< char , Traits >::ignore (streamsize n = `1`, int_type __delim = `traits_type::eof()`) `[inherited]`

int_type std::basic_istream< char , Traits >::peek (void) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::read (char_type * s, streamsize n) `[inherited]`

streamsize std::basic_istream< char , Traits >::readsome (char_type * s, streamsize n) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::putback (char_type c) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::unget (void) `[inherited]`

int std::basic_istream< char , Traits >::sync (void) `[inherited]`

pos_type std::basic_istream< char , Traits >::tellg (void) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::seekg (pos_type) `[inherited]`

__istream_type& std::basic_istream< char , Traits >::seekg (off_type, ios_base::seekdir) `[inherited]`

std::basic_ios< char , Traits >::operator void * () const `[inline, inherited]`

iostate std::basic_ios< char , Traits >::rdstate () const `[inline, inherited]`

void std::basic_ios< char , Traits >::clear (iostate state = goodbit) `[inherited]`

void std::basic_ios< char , Traits >::setstate (iostate state) `[inline, inherited]`

bool std::basic_ios< char , Traits >::good () const `[inline, inherited]`

bool std::basic_ios< char , Traits >::eof () const `[inline, inherited]`

bool std::basic_ios< char , Traits >::fail () const `[inline, inherited]`

bool std::basic_ios< char , Traits >::bad () const `[inline, inherited]`

iostate std::basic_ios< char , Traits >::exceptions () const `[inline, inherited]`

void std::basic_ios< char , Traits >::exceptions (iostate __except) `[inline, inherited]`

basic_ostream<char , Traits >* std::basic_ios< char , Traits >::tie () const `[inline, inherited]`

basic_ostream<char , Traits >* std::basic_ios< char , Traits >::tie (basic_ostream< char , Traits > * __tiestr) `[inline, inherited]`

basic_streambuf<char , Traits >* std::basic_ios< char , Traits >::rdbuf (basic_streambuf< char , Traits > * sb) `[inherited]`

basic_ios& std::basic_ios< char , Traits >::copyfmt (const basic_ios< char, Traits > & __rhs) `[inherited]`

char_type std::basic_ios< char , Traits >::fill () const `[inline, inherited]`

char_type std::basic_ios< char , Traits >::fill (char_type ch) `[inline, inherited]`

locale std::basic_ios< char , Traits >::imbue (const locale & __loc) `[inherited]`

char std::basic_ios< char , Traits >::narrow (char_type c, char __dfault) const `[inherited]`

char_type std::basic_ios< char , Traits >::widen (char c) const `[inherited]`

void std::basic_ios< char , Traits >::init (basic_streambuf< char , Traits > * sb) `[protected, inherited]`

void std::ios_base::register_callback (event_callback __fn, int index) `[inherited]`

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

fmtflags std::ios_base::flags (fmtflags __fmtfl) `[inline, inherited]`

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

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

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

streamsize std::ios_base::precision () const `[inline, inherited]`

streamsize std::ios_base::precision (streamsize __prec) `[inline, inherited]`

streamsize std::ios_base::width () const `[inline, inherited]`

streamsize std::ios_base::width (streamsize __wide) `[inline, inherited]`

bool std::ios_base::sync_with_stdio (bool sync = `true`) `[static, inherited]`

locale std::ios_base::getloc () const `[inline, inherited]`

const locale& std::ios_base::M_getloc () const `[inline, inherited]`

int std::ios_base::xalloc () throw () `[static, inherited]`

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

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

__ostream_type& std::basic_ostream< char , Traits >::operator<< (__ostream_type &(*)(__ostream_type &) __pf) `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::operator<< (long n) `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::operator<< (streambuf_type * sb) `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::put (char_type c) `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::write (const char_type * s, streamsize n) `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::flush () `[inherited]`

pos_type std::basic_ostream< char , Traits >::tellp () `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::seekp (pos_type) `[inherited]`

__ostream_type& std::basic_ostream< char , Traits >::seekp (off_type, ios_base::seekdir) `[inherited]`

const ios_base::fmtflags std::ios_base::boolalpha `[static, inherited]`

const ios_base::fmtflags std::ios_base::dec `[static, inherited]`

const ios_base::fmtflags std::ios_base::fixed `[static, inherited]`

const ios_base::fmtflags std::ios_base::hex `[static, inherited]`

const ios_base::fmtflags std::ios_base::internal `[static, inherited]`

const ios_base::fmtflags std::ios_base::left `[static, inherited]`

const ios_base::fmtflags std::ios_base::oct `[static, inherited]`