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(* 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. |
typedef _Ios_Fmtflags 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 iostate |
This is a bitmask type.
"_Ios_Iostate"
is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type iostate are:
Definition at line 328 of file ios_base.h.
typedef _Ios_Openmode openmode |
This is a bitmask type.
"_Ios_Openmode"
is implementation-defined, but it is valid to perform bitwise operations on these values and expect the Right Thing to happen. Defined objects of type openmode are:
Definition at line 359 of file ios_base.h.
typedef _Ios_Seekdir 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 392 of file ios_base.h.
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 418 of file ios_base.h.
virtual ~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& _M_getloc | ( | ) | const [inline] |
Locale access.
Definition at line 700 of file ios_base.h.
Referenced by money_get::do_get(), num_get::do_get(), time_get::do_get_date(), time_get::do_get_monthname(), time_get::do_get_time(), time_get::do_get_weekday(), time_get::do_get_year(), time_put::do_put(), num_put::do_put(), and time_put::put().
Setting new format flags all at once.
fmtfl | The new flags to set. |
Definition at line 558 of file ios_base.h.
fmtflags flags | ( | ) | const [inline] |
Access to format flags.
Definition at line 548 of file ios_base.h.
Referenced by basic_ios::copyfmt(), num_get::do_get(), num_put::do_put(), basic_ostream::operator<<(), and basic_istream::sentry::sentry().
locale 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 690 of file ios_base.h.
Referenced by basic_ios::copyfmt(), money_put::do_put(), basic_ios::imbue(), std::operator>>(), and std::ws().
long& 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 734 of file ios_base.h.
streamsize precision | ( | streamsize | __prec | ) | [inline] |
Changing flags.
prec | The new precision value. |
Definition at line 626 of file ios_base.h.
streamsize precision | ( | ) | const [inline] |
Flags access.
Definition at line 618 of file ios_base.h.
Referenced by basic_ios::copyfmt().
void*& 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 755 of file ios_base.h.
void 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 591 of file ios_base.h.
Setting new format flags.
fmtfl | Additional flags to set. |
Definition at line 574 of file ios_base.h.
Referenced by std::boolalpha(), std::dec(), std::fixed(), std::hex(), std::internal(), std::left(), std::oct(), std::right(), std::scientific(), std::showbase(), std::showpoint(), std::showpos(), std::skipws(), std::unitbuf(), and std::uppercase().
static bool sync_with_stdio | ( | bool | __sync = true |
) | [static] |
Interaction with the standard C I/O objects.
sync | Whether to synchronize or not. |
void unsetf | ( | fmtflags | __mask | ) | [inline] |
Clearing format flags.
mask | The flags to unset. |
Definition at line 606 of file ios_base.h.
Referenced by std::noboolalpha(), std::noshowbase(), std::noshowpoint(), std::noshowpos(), std::noskipws(), std::nounitbuf(), and std::nouppercase().
streamsize width | ( | streamsize | __wide | ) | [inline] |
Changing flags.
wide | The new width value. |
Definition at line 648 of file ios_base.h.
streamsize width | ( | ) | const [inline] |
Flags access.
Definition at line 640 of file ios_base.h.
Referenced by basic_ios::copyfmt(), num_put::do_put(), and std::operator>>().
static int 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 adjustfield [static] |
A mask of left|right|internal. Useful for the 2-arg form of setf
.
Definition at line 308 of file ios_base.h.
Referenced by std::internal(), std::left(), and std::right().
Open and seek to end immediately after opening.
Definition at line 365 of file ios_base.h.
Referenced by basic_filebuf::open().
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error from a file).
Definition at line 332 of file ios_base.h.
Referenced by basic_ostream::_M_write(), basic_ios::bad(), basic_ios::clear(), basic_ios::fail(), basic_ostream::flush(), basic_istream::get(), std::getline(), basic_istream::getline(), basic_istream::ignore(), basic_ios::init(), std::operator<<(), basic_ostream::operator<<(), basic_istream::operator>>(), std::operator>>(), basic_istream::peek(), basic_ostream::put(), basic_istream::putback(), basic_istream::read(), basic_istream::readsome(), basic_istream::seekg(), basic_ostream::seekp(), basic_istream::sync(), basic_istream::tellg(), basic_ostream::tellp(), basic_istream::unget(), basic_ostream::write(), and basic_ostream::sentry::~sentry().
A mask of dec|oct|hex. Useful for the 2-arg form of setf
.
Definition at line 311 of file ios_base.h.
Referenced by std::dec(), num_get::do_get(), std::hex(), std::oct(), and basic_ostream::operator<<().
Request a seek relative to the beginning of the stream.
Definition at line 395 of file ios_base.h.
Referenced by basic_filebuf::seekpos().
Perform input and output in binary mode (as opposed to text mode). This is probably not what you think it is; see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#3 and http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more.
Definition at line 371 of file ios_base.h.
Referenced by basic_filebuf::showmanyc().
Insert/extract bool
in alphabetic rather than numeric format.
Definition at line 256 of file ios_base.h.
Referenced by std::boolalpha(), num_get::do_get(), num_put::do_put(), and std::noboolalpha().
Request a seek relative to the current position within the sequence.
Definition at line 398 of file ios_base.h.
Referenced by basic_filebuf::imbue(), basic_filebuf::pbackfail(), basic_stringbuf::seekoff(), basic_filebuf::seekoff(), basic_istream::tellg(), and basic_ostream::tellp().
Converts integer input or generates integer output in decimal base.
Definition at line 259 of file ios_base.h.
Referenced by std::dec().
Request a seek relative to the current end of the sequence.
Definition at line 401 of file ios_base.h.
Referenced by basic_filebuf::open(), and basic_stringbuf::seekoff().
Indicates that an input operation reached the end of an input sequence.
Definition at line 335 of file ios_base.h.
Referenced by num_get::do_get(), time_get::do_get_date(), time_get::do_get_monthname(), time_get::do_get_time(), time_get::do_get_weekday(), time_get::do_get_year(), basic_ios::eof(), basic_istream::get(), std::getline(), basic_istream::getline(), basic_istream::ignore(), std::operator>>(), basic_istream::peek(), basic_istream::read(), basic_istream::readsome(), basic_istream::sentry::sentry(), and std::ws().
Indicates that an input operation failed to read the expected characters, or that an output operation failed to generate the desired characters.
Definition at line 340 of file ios_base.h.
Referenced by basic_fstream::close(), basic_ofstream::close(), basic_ifstream::close(), num_get::do_get(), time_get::do_get_monthname(), time_get::do_get_weekday(), time_get::do_get_year(), basic_ios::fail(), basic_istream::get(), std::getline(), basic_istream::getline(), basic_fstream::open(), basic_ofstream::open(), basic_ifstream::open(), basic_ostream::operator<<(), basic_istream::operator>>(), std::operator>>(), basic_istream::read(), basic_istream::seekg(), basic_ostream::seekp(), basic_ostream::sentry::sentry(), and basic_istream::sentry::sentry().
Generate floating-point output in fixed-point notation.
Definition at line 262 of file ios_base.h.
Referenced by std::fixed().
const fmtflags floatfield [static] |
A mask of scientific|fixed. Useful for the 2-arg form of setf
.
Definition at line 314 of file ios_base.h.
Referenced by std::fixed(), and std::scientific().
Indicates all is well.
Definition at line 343 of file ios_base.h.
Referenced by basic_ostream::flush(), basic_istream::get(), std::getline(), basic_istream::getline(), basic_istream::ignore(), basic_ios::init(), basic_ostream::operator<<(), basic_istream::operator>>(), std::operator>>(), basic_istream::peek(), basic_ostream::put(), basic_istream::putback(), basic_istream::read(), basic_istream::readsome(), basic_istream::seekg(), basic_ostream::seekp(), basic_istream::sentry::sentry(), basic_istream::sync(), and basic_istream::unget().
Converts integer input or generates integer output in hexadecimal base.
Definition at line 265 of file ios_base.h.
Referenced by num_get::do_get(), num_put::do_put(), std::hex(), and basic_ostream::operator<<().
Open for input. Default for ifstream
and fstream.
Definition at line 374 of file ios_base.h.
Referenced by basic_filebuf::pbackfail(), basic_istream::seekg(), basic_stringbuf::seekoff(), basic_stringbuf::seekpos(), basic_stringbuf::showmanyc(), basic_filebuf::showmanyc(), basic_istream::tellg(), basic_stringbuf::underflow(), basic_filebuf::underflow(), and basic_filebuf::xsgetn().
Adds fill characters at a designated internal point in certain generated output, or identical to right
if no such point is designated.
Definition at line 270 of file ios_base.h.
Referenced by num_put::do_put(), and std::internal().
Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.).
Definition at line 274 of file ios_base.h.
Referenced by std::left().
Converts integer input or generates integer output in octal base.
Definition at line 277 of file ios_base.h.
Referenced by std::oct(), and basic_ostream::operator<<().
Open for output. Default for ofstream
and fstream.
Definition at line 377 of file ios_base.h.
Referenced by basic_stringbuf::overflow(), basic_filebuf::overflow(), basic_stringbuf::pbackfail(), basic_stringbuf::seekoff(), basic_ostream::seekp(), basic_stringbuf::seekpos(), basic_ostream::tellp(), and basic_filebuf::xsputn().
Adds fill characters on the left (initial positions) of certain generated output. (I.e., the thing you print is flush right.).
Definition at line 281 of file ios_base.h.
Referenced by std::right().
const fmtflags scientific [static] |
Generates floating-point output in scientific notation.
Definition at line 284 of file ios_base.h.
Referenced by std::scientific().
Generates a prefix indicating the numeric base of generated integer output.
Definition at line 288 of file ios_base.h.
Referenced by num_put::do_put(), std::noshowbase(), and std::showbase().
Generates a decimal-point character unconditionally in generated floating-point output.
Definition at line 292 of file ios_base.h.
Referenced by std::noshowpoint(), and std::showpoint().
Generates a + sign in non-negative generated numeric output.
Definition at line 295 of file ios_base.h.
Referenced by std::noshowpos(), and std::showpos().
Skips leading white space before certain input operations.
Definition at line 298 of file ios_base.h.
Referenced by std::noskipws(), basic_istream::sentry::sentry(), and std::skipws().
Flushes output after each output operation.
Definition at line 301 of file ios_base.h.
Referenced by std::nounitbuf(), std::unitbuf(), and basic_ostream::sentry::~sentry().
Replaces certain lowercase letters with their uppercase equivalents in generated output.
Definition at line 305 of file ios_base.h.
Referenced by num_put::do_put(), std::nouppercase(), and std::uppercase().