ios_base
when they need to specify the full name of the various I/O flags (e.g., the openmodes).
Definition at line 201 of file ios_base.h.
typedef void(* std::ios_base::event_callback)(event, ios_base &, int) |
The type of an event callback function.
event | One of the members of the event enum. | |
ios_base | Reference to the ios_base object. | |
int | The integer provided when the callback was registered. |
Definition at line 422 of file ios_base.h.
typedef _Ios_Fmtflags std::ios_base::fmtflags |
This is a bitmask type.
"_Ios_Fmtflags"
is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type fmtflags are:
Definition at line 253 of file ios_base.h.
typedef _Ios_Iostate std::ios_base::iostate |
This is a bitmask type.
"_Ios_Iostate"
is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type iostate are:
Definition at line 321 of file ios_base.h.
typedef _Ios_Openmode std::ios_base::openmode |
This is a bitmask type.
"_Ios_Openmode"
is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type openmode are:
Definition at line 349 of file ios_base.h.
typedef _Ios_Seekdir std::ios_base::seekdir |
This is an enumerated type.
"_Ios_Seekdir"
is implementation-defined. Defined values of type seekdir are:
SEEK_CUR
in the C standard library.SEEK_END
in the C standard library. Definition at line 379 of file ios_base.h.
anonymous enum [protected] |
enum std::ios_base::event |
The set of events that may be passed to an event callback.
erase_event is used during ~ios() and copyfmt(). imbue_event is used during imbue(). copyfmt_event is used during copyfmt().
Definition at line 405 of file ios_base.h.
virtual std::ios_base::~ios_base | ( | ) | [virtual] |
Invokes each callback with erase_event. Destroys local storage.
Note that the ios_base object for the standard streams never gets destroyed. As a result, any callbacks registered with the standard streams will not get invoked with erase_event (unless copyfmt is used).
const locale& std::ios_base::_M_getloc | ( | ) | const [inline] |
Locale access.
Definition at line 687 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_float(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::time_get< _CharT, _InIter >::_M_extract_name(), std::time_get< _CharT, _InIter >::_M_extract_num(), std::time_get< _CharT, _InIter >::_M_extract_via_format(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_float(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::__pad< _CharT, _Traits >::_S_pad(), std::money_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_date(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_time(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::time_put< _CharT, _OutIter >::do_put(), std::num_put< _CharT, _OutIter >::do_put(), and std::time_put< _CharT, _OutIter >::put().
Setting new format flags all at once.
fmtfl | The new flags to set. |
Definition at line 545 of file ios_base.h.
fmtflags std::ios_base::flags | ( | ) | const [inline] |
Access to format flags.
Definition at line 535 of file ios_base.h.
Referenced by std::__ostream_insert(), std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_float(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::__pad< _CharT, _Traits >::_S_pad(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), __gnu_cxx::operator<<(), std::tr1::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), and std::tr1::operator>>().
locale std::ios_base::getloc | ( | ) | const [inline] |
Locale access.
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 677 of file ios_base.h.
Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::money_put< _CharT, _OutIter >::do_put(), std::operator>>(), and std::ws().
Setting a new locale.
loc | The new locale. |
Reimplemented in std::basic_ios< _CharT, _Traits >.
Referenced by std::basic_ios< _CharT, _Traits >::imbue().
long& std::ios_base::iword | ( | int | __ix | ) | [inline] |
Access to integer array.
__ix | Index into the array. |
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 721 of file ios_base.h.
References std::ios_base::_Words::_M_iword.
streamsize std::ios_base::precision | ( | streamsize | __prec | ) | [inline] |
Changing flags.
prec | The new precision value. |
Definition at line 613 of file ios_base.h.
streamsize std::ios_base::precision | ( | ) | const [inline] |
Flags access.
Definition at line 605 of file ios_base.h.
Referenced by std::num_put< _CharT, _OutIter >::_M_insert_float(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::operator<<(), and std::operator>>().
void*& std::ios_base::pword | ( | int | __ix | ) | [inline] |
Access to void pointer array.
__ix | Index into the array. |
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 742 of file ios_base.h.
References std::ios_base::_Words::_M_pword.
void std::ios_base::register_callback | ( | event_callback | __fn, | |
int | __index | |||
) |
Add the callback __fn with parameter __index.
__fn | The function to add. | |
__index | The integer to pass to the function when invoked. |
Setting new format flags.
fmtfl | Additional flags to set. | |
mask | The flags mask for fmtfl. |
&
mask. An example mask is ios_base::adjustfield
.
Definition at line 578 of file ios_base.h.
Setting new format flags.
fmtfl | Additional flags to set. |
Definition at line 561 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().
static bool std::ios_base::sync_with_stdio | ( | bool | __sync = true |
) | [static] |
Interaction with the standard C I/O objects.
sync | Whether to synchronize or not. |
void std::ios_base::unsetf | ( | fmtflags | __mask | ) | [inline] |
Clearing format flags.
mask | The flags to unset. |
Definition at line 593 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::width | ( | streamsize | __wide | ) | [inline] |
Changing flags.
wide | The new width value. |
Definition at line 635 of file ios_base.h.
streamsize std::ios_base::width | ( | ) | const [inline] |
Flags access.
Definition at line 627 of file ios_base.h.
Referenced by std::__ostream_insert(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_float(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::num_put< _CharT, _OutIter >::do_put(), __gnu_cxx::operator<<(), std::operator<<(), and std::operator>>().
static int std::ios_base::xalloc | ( | ) | throw () [static] |
Access to unique indices.
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.
const fmtflags std::ios_base::adjustfield [static] |
A mask of left|right|internal. Useful for the 2-arg form of setf
.
Definition at line 301 of file ios_base.h.
Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), and std::__pad< _CharT, _Traits >::_S_pad().
const openmode std::ios_base::app [static] |
const openmode std::ios_base::ate [static] |
Open and seek to end immediately after opening.
Definition at line 355 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::open().
const iostate std::ios_base::badbit [static] |
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error from a file).
Definition at line 324 of file ios_base.h.
Referenced by std::basic_istream< _CharT, _Traits >::_M_extract(), std::basic_ostream< _CharT, _Traits >::_M_insert(), std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_ios< _CharT, _Traits >::init(), std::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator>>(), std::basic_istream< _CharT, _Traits >::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(), and std::basic_ostream< _CharT, _Traits >::write().
const fmtflags std::ios_base::basefield [static] |
A mask of dec|oct|hex. Useful for the 2-arg form of setf
.
Definition at line 304 of file ios_base.h.
Referenced by std::__int_to_char(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::basic_ostream< _CharT, _Traits >::operator<<().
const seekdir std::ios_base::beg [static] |
Request a seek relative to the beginning of the stream.
Definition at line 382 of file ios_base.h.
Referenced by __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::seekoff(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::seekpos(), and std::basic_filebuf< _CharT, _Traits >::seekpos().
const openmode std::ios_base::binary [static] |
Perform input and output in binary mode (as opposed to text mode). This is probably not what you think it is; see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#3 and http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more.
Definition at line 358 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::showmanyc().
const fmtflags std::ios_base::boolalpha [static] |
Insert/extract bool
in alphabetic rather than numeric format.
Definition at line 256 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::do_get(), and std::num_put< _CharT, _OutIter >::do_put().
const seekdir std::ios_base::cur [static] |
Request a seek relative to the current position within the sequence.
Definition at line 385 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::imbue(), std::basic_filebuf< _CharT, _Traits >::pbackfail(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::seekoff(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_filebuf< _CharT, _Traits >::seekoff(), std::basic_istream< _CharT, _Traits >::tellg(), and std::basic_ostream< _CharT, _Traits >::tellp().
const fmtflags std::ios_base::dec [static] |
Converts integer input or generates integer output in decimal base.
Definition at line 259 of file ios_base.h.
const seekdir std::ios_base::end [static] |
Request a seek relative to the current end of the sequence.
Definition at line 388 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::open(), and std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff().
const iostate std::ios_base::eofbit [static] |
Indicates that an input operation reached the end of an input sequence.
Definition at line 327 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_float(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_date(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_time(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::basic_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::readsome(), and std::ws().
const iostate std::ios_base::failbit [static] |
Indicates that an input operation failed to read the expected characters, or that an output operation failed to generate the desired characters.
Definition at line 330 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::num_get< _CharT, _InIter >::_M_extract_float(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::time_get< _CharT, _InIter >::_M_extract_name(), std::time_get< _CharT, _InIter >::_M_extract_num(), std::time_get< _CharT, _InIter >::_M_extract_via_format(), std::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_istream< _CharT, _Traits >::get(), std::getline(), std::basic_istream< _CharT, _Traits >::getline(), 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(), and std::basic_ostream< _CharT, _Traits >::seekp().
const fmtflags std::ios_base::fixed [static] |
Generate floating-point output in fixed-point notation.
Definition at line 262 of file ios_base.h.
Referenced by std::num_put< _CharT, _OutIter >::_M_insert_float().
const fmtflags std::ios_base::floatfield [static] |
A mask of scientific|fixed. Useful for the 2-arg form of setf
.
Definition at line 307 of file ios_base.h.
const iostate std::ios_base::goodbit [static] |
Indicates all is well.
Definition at line 333 of file ios_base.h.
Referenced by std::basic_istream< _CharT, _Traits >::_M_extract(), std::time_get< _CharT, _InIter >::_M_extract_via_format(), std::basic_ostream< _CharT, _Traits >::_M_insert(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_weekday(), 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 >::sync(), and std::basic_istream< _CharT, _Traits >::unget().
const fmtflags std::ios_base::hex [static] |
Converts integer input or generates integer output in hexadecimal base.
Definition at line 265 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_put< _CharT, _OutIter >::_M_insert_int(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::basic_ostream< _CharT, _Traits >::operator<<().
const openmode std::ios_base::in [static] |
Open for input. Default for ifstream
and fstream.
Definition at line 361 of file ios_base.h.
Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_sync(), std::basic_filebuf< _CharT, _Traits >::pbackfail(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), std::basic_filebuf< _CharT, _Traits >::showmanyc(), std::basic_istream< _CharT, _Traits >::tellg(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::underflow(), std::basic_filebuf< _CharT, _Traits >::underflow(), and std::basic_filebuf< _CharT, _Traits >::xsgetn().
const fmtflags std::ios_base::internal [static] |
Adds fill characters at a designated internal point in certain generated output, or identical to right
if no such point is designated.
Definition at line 268 of file ios_base.h.
Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), std::__pad< _CharT, _Traits >::_S_pad(), and std::num_put< _CharT, _OutIter >::do_put().
const fmtflags std::ios_base::left [static] |
Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.).
Definition at line 271 of file ios_base.h.
Referenced by std::money_put< _CharT, _OutIter >::_M_insert(), std::__pad< _CharT, _Traits >::_S_pad(), and __gnu_cxx::operator<<().
const fmtflags std::ios_base::oct [static] |
Converts integer input or generates integer output in octal base.
Definition at line 274 of file ios_base.h.
Referenced by std::__int_to_char(), std::num_get< _CharT, _InIter >::_M_extract_int(), std::num_put< _CharT, _OutIter >::_M_insert_int(), and std::basic_ostream< _CharT, _Traits >::operator<<().
const openmode std::ios_base::out [static] |
Open for output. Default for ofstream
and fstream.
Definition at line 364 of file ios_base.h.
Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::_M_sync(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), std::basic_filebuf< _CharT, _Traits >::overflow(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), std::basic_ostream< _CharT, _Traits >::tellp(), and std::basic_filebuf< _CharT, _Traits >::xsputn().
const fmtflags std::ios_base::right [static] |
Adds fill characters on the left (initial positions) of certain generated output. (I.e., the thing you print is flush right.).
Definition at line 277 of file ios_base.h.
const fmtflags std::ios_base::scientific [static] |
const fmtflags std::ios_base::showbase [static] |
Generates a prefix indicating the numeric base of generated integer output.
Definition at line 283 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::_M_extract(), std::money_put< _CharT, _OutIter >::_M_insert(), std::num_put< _CharT, _OutIter >::_M_insert_int(), and std::num_put< _CharT, _OutIter >::do_put().
const fmtflags std::ios_base::showpoint [static] |
Generates a decimal-point character unconditionally in generated floating-point output.
Definition at line 286 of file ios_base.h.
const fmtflags std::ios_base::showpos [static] |
Generates a + sign in non-negative generated numeric output.
Definition at line 289 of file ios_base.h.
Referenced by std::num_put< _CharT, _OutIter >::_M_insert_int().
const fmtflags std::ios_base::skipws [static] |
Skips leading white space before certain input operations.
Definition at line 292 of file ios_base.h.
const openmode std::ios_base::trunc [static] |
const fmtflags std::ios_base::unitbuf [static] |
const fmtflags std::ios_base::uppercase [static] |
Replaces certain lowercase letters with their uppercase equivalents in generated output.
Definition at line 298 of file ios_base.h.
Referenced by std::__int_to_char(), std::num_put< _CharT, _OutIter >::_M_insert_int(), and std::num_put< _CharT, _OutIter >::do_put().