libstdc++
|
Classes | |
class | sentry |
Public Types | |
typedef ctype< _CharT > | __ctype_type |
typedef basic_ios< _CharT, _Traits > | __ios_type |
typedef num_put< _CharT, ostreambuf_iterator< _CharT, _Traits > > | __num_put_type |
typedef basic_ostream< _CharT, _Traits > | __ostream_type |
typedef basic_streambuf< _CharT, _Traits > | __streambuf_type |
typedef _CharT | char_type |
enum | event { erase_event, imbue_event, copyfmt_event } |
typedef void(* | event_callback) (event __e, ios_base &__b, int __i) |
typedef _Ios_Fmtflags | fmtflags |
typedef _Traits::int_type | int_type |
typedef int | io_state |
typedef _Ios_Iostate | iostate |
typedef _Traits::off_type | off_type |
typedef int | open_mode |
typedef _Ios_Openmode | openmode |
typedef _Traits::pos_type | pos_type |
typedef int | seek_dir |
typedef _Ios_Seekdir | seekdir |
typedef std::streamoff | streamoff |
typedef std::streampos | streampos |
typedef _Traits | traits_type |
typedef num_get< _CharT, istreambuf_iterator< _CharT, _Traits > > | __num_get_type |
Public Member Functions | |
basic_ostream (__streambuf_type *__sb) | |
virtual | ~basic_ostream () |
const locale & | _M_getloc () const |
template<typename _ValueT > | |
basic_ostream< _CharT, _Traits > & | _M_insert (_ValueT __v) |
void | _M_setstate (iostate __state) |
bool | bad () const |
void | clear (iostate __state=goodbit) |
basic_ios & | copyfmt (const basic_ios &__rhs) |
bool | eof () const |
iostate | exceptions () const |
void | exceptions (iostate __except) |
bool | fail () const |
char_type | fill () const |
char_type | fill (char_type __ch) |
fmtflags | flags () const |
fmtflags | flags (fmtflags __fmtfl) |
__ostream_type & | flush () |
locale | getloc () const |
bool | good () const |
locale | imbue (const locale &__loc) |
long & | iword (int __ix) |
char | narrow (char_type __c, char __dfault) const |
__ostream_type & | operator<< (const void *__p) |
__ostream_type & | operator<< (__streambuf_type *__sb) |
streamsize | precision () const |
streamsize | precision (streamsize __prec) |
void *& | pword (int __ix) |
basic_streambuf< _CharT, _Traits > * | rdbuf () const |
basic_streambuf< _CharT, _Traits > * | rdbuf (basic_streambuf< _CharT, _Traits > *__sb) |
iostate | rdstate () const |
void | register_callback (event_callback __fn, int __index) |
__ostream_type & | seekp (pos_type) |
__ostream_type & | seekp (off_type, ios_base::seekdir) |
fmtflags | setf (fmtflags __fmtfl) |
fmtflags | setf (fmtflags __fmtfl, fmtflags __mask) |
void | setstate (iostate __state) |
pos_type | tellp () |
basic_ostream< _CharT, _Traits > * | tie () const |
basic_ostream< _CharT, _Traits > * | tie (basic_ostream< _CharT, _Traits > *__tiestr) |
void | unsetf (fmtflags __mask) |
char_type | widen (char __c) const |
streamsize | width () const |
streamsize | width (streamsize __wide) |
__ostream_type & | operator<< (__ostream_type &(*__pf)(__ostream_type &)) |
__ostream_type & | operator<< (__ios_type &(*__pf)(__ios_type &)) |
__ostream_type & | operator<< (ios_base &(*__pf)(ios_base &)) |
Inserters | |
All the If the sentry status is good, the function tries to generate whatever data is appropriate for the type of the argument. If an exception is thrown during insertion, ios_base::badbit will be turned on in the stream's error state without causing an ios_base::failure to be thrown. The original exception will then be rethrown. | |
__ostream_type & | operator<< (long __n) |
__ostream_type & | operator<< (unsigned long __n) |
__ostream_type & | operator<< (bool __n) |
__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<< (long long __n) |
__ostream_type & | operator<< (unsigned long long __n) |
__ostream_type & | operator<< (double __f) |
__ostream_type & | operator<< (float __f) |
__ostream_type & | operator<< (long double __f) |
Unformatted Output Functions | |
All the unformatted output functions have some common behavior. Each starts by constructing a temporary object of type std::basic_ostream::sentry. This has several effects, concluding with the setting of a status flag; see the sentry documentation for more. If the sentry status is good, the function tries to generate whatever data is appropriate for the type of the argument. If an exception is thrown during insertion, ios_base::badbit will be turned on in the stream's error state. If badbit is on in the stream's exceptions mask, the exception will be rethrown without completing its actions. | |
__ostream_type & | put (char_type __c) |
void | _M_write (const char_type *__s, streamsize __n) |
__ostream_type & | write (const char_type *__s, streamsize __n) |
operator bool () const | |
bool | operator! () const |
Static Public Member Functions | |
static bool | sync_with_stdio (bool __sync=true) |
static int | xalloc () throw () |
Static Public Attributes | |
static const fmtflags | adjustfield |
static const openmode | app |
static const openmode | ate |
static const iostate | badbit |
static const fmtflags | basefield |
static const seekdir | beg |
static const openmode | binary |
static const fmtflags | boolalpha |
static const seekdir | cur |
static const fmtflags | dec |
static const seekdir | end |
static const iostate | eofbit |
static const iostate | failbit |
static const fmtflags | fixed |
static const fmtflags | floatfield |
static const iostate | goodbit |
static const fmtflags | hex |
static const openmode | in |
static const fmtflags | internal |
static const fmtflags | left |
static const fmtflags | oct |
static const openmode | out |
static const fmtflags | right |
static const fmtflags | scientific |
static const fmtflags | showbase |
static const fmtflags | showpoint |
static const fmtflags | showpos |
static const fmtflags | skipws |
static const openmode | trunc |
static const fmtflags | unitbuf |
static const fmtflags | uppercase |
Protected Types | |
enum | { _S_local_word_size } |
Protected Member Functions | |
basic_ostream (basic_iostream< _CharT, _Traits > &) | |
basic_ostream (const basic_ostream &)=delete | |
basic_ostream (basic_ostream &&__rhs) | |
void | _M_cache_locale (const locale &__loc) |
void | _M_call_callbacks (event __ev) throw () |
void | _M_dispose_callbacks (void) throw () |
_Words & | _M_grow_words (int __index, bool __iword) |
void | _M_init () throw () |
template<typename _ValueT > | |
__ostream_type & | _M_insert (_ValueT __v) |
void | _M_move (ios_base &) noexcept |
void | _M_swap (ios_base &__rhs) noexcept |
void | init (basic_streambuf< _CharT, _Traits > *__sb) |
void | move (basic_ios &__rhs) |
void | move (basic_ios &&__rhs) |
basic_ostream & | operator= (const basic_ostream &)=delete |
basic_ostream & | operator= (basic_ostream &&__rhs) |
void | set_rdbuf (basic_streambuf< _CharT, _Traits > *__sb) |
void | swap (basic_ostream &__rhs) |
void | swap (basic_ios &__rhs) noexcept |
Protected Attributes | |
_Callback_list * | _M_callbacks |
const __ctype_type * | _M_ctype |
iostate | _M_exception |
char_type | _M_fill |
bool | _M_fill_init |
fmtflags | _M_flags |
locale | _M_ios_locale |
_Words | _M_local_word [_S_local_word_size] |
const __num_get_type * | _M_num_get |
const __num_put_type * | _M_num_put |
streamsize | _M_precision |
basic_streambuf< _CharT, _Traits > * | _M_streambuf |
iostate | _M_streambuf_state |
basic_ostream< _CharT, _Traits > * | _M_tie |
streamsize | _M_width |
_Words * | _M_word |
int | _M_word_size |
_Words | _M_word_zero |
Friends | |
class | sentry |
Template class basic_ostream.
_CharT | Type of character stream. |
_Traits | Traits for character type, defaults to char_traits<_CharT>. |
This is the base class for all output streams. It provides text formatting of all builtin types, and communicates with any class derived from basic_streambuf to do the actual output.
|
inherited |
These are non-standard types.
Definition at line 91 of file basic_ios.h.
The type of an event callback function.
__e | One of the members of the event enum. |
__b | Reference to the ios_base object. |
__i | The integer provided when the callback was registered. |
Event callbacks are user defined functions that get called during several ios_base and basic_ios functions, specifically imbue(), copyfmt(), and ~ios().
Definition at line 504 of file ios_base.h.
|
inherited |
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 323 of file ios_base.h.
|
inherited |
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 398 of file ios_base.h.
|
inherited |
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 429 of file ios_base.h.
|
inherited |
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 461 of file ios_base.h.
|
inherited |
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 487 of file ios_base.h.
|
inlineexplicit |
|
inlinevirtual |
|
inlineinherited |
Locale access.
Like getloc above, but returns a reference instead of generating a copy.
Definition at line 774 of file ios_base.h.
Referenced by std::time_get< _CharT, _InIter >::do_date_order(), std::time_get< _CharT, _InIter >::do_get(), 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(), std::time_get< _CharT, _InIter >::get(), and std::time_put< _CharT, _OutIter >::put().
|
inline |
Core write functionality, without sentry.
__s | The array to insert. |
__n | Maximum number of characters to insert. |
Definition at line 311 of file ostream.
Referenced by std::basic_ostream< _CharT, _Traits >::write().
|
inlineinherited |
Fast error checking.
Note that other iostate flags may also be set.
Definition at line 211 of file basic_ios.h.
|
inherited |
[Re]sets the error state.
__state | The new state flag(s) to set. |
See std::ios_base::iostate for the possible bit values. Most users will not need to pass an argument.
Definition at line 41 of file basic_ios.tcc.
Referenced by std::basic_ios< char, _Traits >::exceptions(), std::__detail::operator>>(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_ios< char, _Traits >::rdstate(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ios< char, _Traits >::setstate(), and std::basic_istream< _CharT, _Traits >::unget().
|
inherited |
Copies fields of __rhs into this.
__rhs | The source values for the copies. |
All fields of __rhs are copied into this object except that rdbuf() and rdstate() remain unchanged. All values in the pword and iword arrays are copied. Before copying, each callback is invoked with erase_event. After copying, each (new) callback is invoked with copyfmt_event. The final step is to copy exceptions().
Definition at line 63 of file basic_ios.tcc.
References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::fill(), std::ios_base::flags(), std::ios_base::getloc(), std::ios_base::precision(), std::basic_ios< _CharT, _Traits >::tie(), std::tie(), and std::ios_base::width().
Referenced by std::basic_ios< char, _Traits >::rdbuf().
|
inlineinherited |
Fast error checking.
Note that other iostate flags may also be set.
Definition at line 190 of file basic_ios.h.
|
inlineinherited |
Throwing exceptions on errors.
This changes nothing in the stream. See the one-argument version of exceptions(iostate) for the meaning of the return value.
Definition at line 222 of file basic_ios.h.
Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), and std::basic_ios< char, _Traits >::setstate().
|
inlineinherited |
Throwing exceptions on errors.
__except | The new exceptions mask. |
By default, error flags are set silently. You can set an exceptions mask for each stream; if a bit in the mask becomes set in the error flags, then an exception of type std::ios_base::failure is thrown.
If the error flag is already set when the exceptions mask is added, the exception is immediately thrown. Try running the following under GCC 3.1 or later:
Definition at line 257 of file basic_ios.h.
|
inlineinherited |
Fast error checking.
Checking the badbit in fail() is historical practice. Note that other iostate flags may also be set.
Definition at line 201 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::operator bool(), std::basic_ios< char, _Traits >::operator!(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_istream< _CharT, _Traits >::tellg(), std::basic_ostream< _CharT, _Traits >::tellp(), and std::regex_traits< _Ch_type >::value().
|
inlineinherited |
Retrieves the empty character.
It defaults to a space (' ') in the current locale.
Definition at line 370 of file basic_ios.h.
Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::basic_ios< char, _Traits >::fill(), std::normal_distribution< _RealType >::operator()(), std::gamma_distribution< _RealType >::operator()(), std::negative_binomial_distribution< _IntType >::operator()(), and std::operator>>().
|
inlineinherited |
Sets a new empty character.
__ch | The new 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 390 of file basic_ios.h.
|
inlineinherited |
Access to format flags.
Definition at line 619 of file ios_base.h.
Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::mersenne_twister_engine< _UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f >::discard(), std::money_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::subtract_with_carry_engine< _UIntType, __w, __s, __r >::operator()(), std::discard_block_engine< _RandomNumberEngine, __p, __r >::operator()(), std::shuffle_order_engine< _RandomNumberEngine, __k >::operator()(), std::normal_distribution< _RealType >::operator()(), std::gamma_distribution< _RealType >::operator()(), std::binomial_distribution< _IntType >::operator()(), std::negative_binomial_distribution< _IntType >::operator()(), std::poisson_distribution< _IntType >::operator()(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::operator<<(), std::__detail::operator>>(), std::operator>>(), std::linear_congruential_engine< _UIntType, __a, __c, __m >::seed(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().
Setting new format flags all at once.
__fmtfl | The new flags to set. |
This function overwrites all the format flags with __fmtfl.
Definition at line 630 of file ios_base.h.
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::flush | ( | ) |
Synchronizing the stream buffer.
If rdbuf()
is a null pointer, changes nothing.
Otherwise, calls rdbuf()->pubsync()
, and if that returns -1, sets badbit.
Definition at line 211 of file ostream.tcc.
References std::ios_base::badbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), std::basic_ios< _CharT, _Traits >::setstate(), and std::basic_ostream< _CharT, _Traits >::tellp().
Referenced by std::operator<<(), and std::basic_ostream< _CharT, _Traits >::write().
|
inlineinherited |
Locale access.
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 763 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().
|
inlineinherited |
Fast error checking.
A wrapper around rdstate.
Definition at line 180 of file basic_ios.h.
Referenced by std::__detail::operator>>(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().
|
inherited |
Moves to a new locale.
__loc | The new 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++/manual/localization.html
Definition at line 114 of file basic_ios.tcc.
References std::ios_base::imbue().
Referenced by std::basic_ios< char, _Traits >::fill().
|
protectedinherited |
All setup is performed here.
This is called from the public constructor. It is not virtual and cannot be redefined.
Definition at line 126 of file basic_ios.tcc.
References std::__addressof().
Referenced by std::basic_ios< char, _Traits >::basic_ios().
|
inlineinherited |
Access to integer array.
__ix | Index into the array. |
The iword function provides access to an array of integers that can be used for any purpose. The array grows as required to hold the supplied index. All integers in the array are initialized to 0.
The implementation reserves several indices. You should use xalloc to obtain an index that is safe to use. Also note that since the array can grow dynamically, it is not safe to hold onto the reference.
Definition at line 809 of file ios_base.h.
|
inlineinherited |
Squeezes characters.
__c | The character to narrow. |
__dfault | The character to narrow. |
Maps a character of char_type
to a character of char
, if possible.
Returns the result of
Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html
Definition at line 430 of file basic_ios.h.
|
inlineexplicitinherited |
The quick-and-easy status check.
This allows you to write constructs such as if (!a_stream) ...
and while (a_stream) ...
Definition at line 117 of file basic_ios.h.
|
inlineinherited |
The quick-and-easy status check.
This allows you to write constructs such as if (!a_stream) ...
and while (a_stream) ...
Definition at line 125 of file basic_ios.h.
|
inline |
Interface for manipulators.
Manipulators such as std::endl
and std::hex
use these functions in constructs like "std::cout << std::endl". For more information, see the iomanip header.
Definition at line 108 of file ostream.
Referenced by std::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), and std::basic_ostream< _CharT, _Traits >::sentry::sentry().
|
inline |
|
inline |
|
inline |
|
inline |
|
inline |
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::operator<< | ( | short | __n | ) |
Integer arithmetic inserters.
__n | A variable of builtin integral type. |
*this
if successfulThese functions use the stream's current locale (specifically, the num_get
facet) to perform numeric formatting.
Definition at line 92 of file ostream.tcc.
References std::ios_base::basefield, std::ios_base::flags(), std::ios_base::hex, std::ios_base::oct, and std::basic_ostream< _CharT, _Traits >::operator<<().
|
inline |
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::operator<< | ( | int | __n | ) |
Integer arithmetic inserters.
__n | A variable of builtin integral type. |
*this
if successfulThese functions use the stream's current locale (specifically, the num_get
facet) to perform numeric formatting.
Definition at line 106 of file ostream.tcc.
References std::ios_base::basefield, std::ios_base::flags(), std::ios_base::hex, std::ios_base::oct, and std::basic_ostream< _CharT, _Traits >::operator<<().
|
inline |
|
inline |
|
inline |
|
inline |
|
inline |
|
inline |
|
inline |
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::operator<< | ( | __streambuf_type * | __sb | ) |
Extracting from another streambuf.
__sb | A pointer to a streambuf |
This function behaves like one of the basic arithmetic extractors, in that it also constructs a sentry object and has the same error handling behavior.
If __sb
is NULL, the stream will set failbit in its error state.
Characters are extracted from __sb
and inserted into *this
until one of the following occurs:
__sb
, which sets failbit in the error stateIf the function inserts no characters, failbit is set.
Definition at line 120 of file ostream.tcc.
References std::ios_base::badbit, std::ios_base::failbit, std::ios_base::goodbit, std::basic_ostream< _CharT, _Traits >::put(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().
|
inlineinherited |
Flags access.
Be careful if you try to give a definition of precision here; see DR 189.
Definition at line 689 of file ios_base.h.
Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::num_get< _CharT, _InIter >::do_get(), std::normal_distribution< _RealType >::operator()(), std::gamma_distribution< _RealType >::operator()(), std::negative_binomial_distribution< _IntType >::operator()(), and std::operator>>().
|
inlineinherited |
Changing flags.
__prec | The new precision value. |
Definition at line 698 of file ios_base.h.
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::put | ( | char_type | __c | ) |
Simple insertion.
__c | The character to insert. |
Tries to insert __c
.
Definition at line 149 of file ostream.tcc.
References std::ios_base::badbit, std::ios_base::goodbit, std::basic_ios< _CharT, _Traits >::rdbuf(), std::basic_ios< _CharT, _Traits >::setstate(), and std::basic_ostream< _CharT, _Traits >::write().
Referenced by std::basic_ostream< _CharT, _Traits >::operator<<().
|
inlineinherited |
Access to void pointer array.
__ix | Index into the array. |
The pword function provides access to an array of pointers that can be used for any purpose. The array grows as required to hold the supplied index. All pointers in the array are initialized to 0.
The implementation reserves several indices. You should use xalloc to obtain an index that is safe to use. Also note that since the array can grow dynamically, it is not safe to hold onto the reference.
Definition at line 830 of file ios_base.h.
|
inlineinherited |
Accessing the underlying buffer.
This does not change the state of the stream.
Definition at line 321 of file basic_ios.h.
Referenced by std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::getline(), std::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::tr2::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_ios< char, _Traits >::rdbuf(), 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 >::tellg(), std::basic_ostream< _CharT, _Traits >::tellp(), std::basic_istream< _CharT, _Traits >::unget(), and std::ws().
|
inherited |
Changing the underlying buffer.
__sb | The new stream buffer. |
Associates a new buffer with the current stream, and clears the error state.
Due to historical accidents which the LWG refuses to correct, the I/O library suffers from a design error: this function is hidden in derived classes by overrides of the zero-argument rdbuf()
, which is non-virtual for hysterical raisins. As a result, you must use explicit qualifications to access this function via any derived class. For example:
Definition at line 53 of file basic_ios.tcc.
|
inlineinherited |
Returns the error state of the stream buffer.
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 137 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::bad(), std::basic_ios< char, _Traits >::eof(), std::basic_ios< char, _Traits >::fail(), std::basic_ios< char, _Traits >::good(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ios< char, _Traits >::setstate(), and std::basic_istream< _CharT, _Traits >::unget().
|
inherited |
Add the callback __fn with parameter __index.
__fn | The function to add. |
__index | The integer to pass to the function when invoked. |
Registers a function as an event callback with an integer parameter to be passed to the function when invoked. Multiple copies of the function are allowed. If there are multiple callbacks, they are invoked in the order they were registered.
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::seekp | ( | pos_type | __pos | ) |
Changing the current write position.
__pos | A file position object. |
If fail()
is not true, calls rdbuf()->pubseekpos(pos)
. If that function fails, sets failbit.
Definition at line 258 of file ostream.tcc.
References std::ios_base::badbit, std::basic_ios< _CharT, _Traits >::fail(), std::ios_base::failbit, std::ios_base::goodbit, std::ios_base::out, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().
Referenced by std::basic_ostream< _CharT, _Traits >::tellp().
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::seekp | ( | off_type | __off, |
ios_base::seekdir | __dir | ||
) |
Changing the current write position.
__off | A file offset object. |
__dir | The direction in which to seek. |
If fail()
is not true, calls rdbuf()->pubseekoff(off,dir)
. If that function fails, sets failbit.
Definition at line 290 of file ostream.tcc.
References std::ios_base::badbit, std::basic_ios< _CharT, _Traits >::fail(), std::ios_base::failbit, std::ios_base::goodbit, std::ios_base::out, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate().
Setting new format flags.
__fmtfl | Additional flags to set. |
This function sets additional flags in format control. Flags that were previously set remain set.
Definition at line 646 of file ios_base.h.
Referenced by std::boolalpha(), std::dec(), std::fixed(), std::hex(), std::hexfloat(), std::left(), std::oct(), std::__detail::operator>>(), std::right(), std::scientific(), std::showbase(), std::showpoint(), std::showpos(), std::skipws(), std::unitbuf(), and std::uppercase().
Setting new format flags.
__fmtfl | Additional flags to set. |
__mask | The flags mask for fmtfl. |
This function clears mask in the format flags, then sets fmtfl &
mask. An example mask is ios_base::adjustfield
.
Definition at line 663 of file ios_base.h.
|
inlineinherited |
Sets additional flags in the error state.
__state | The additional state flag(s) to set. |
See std::ios_base::iostate for the possible bit values.
Definition at line 157 of file basic_ios.h.
Referenced by std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::getline(), std::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::operator<<(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::basic_istream< _CharT, _Traits >::operator>>(), std::tr2::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_ostream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sync(), std::basic_istream< _CharT, _Traits >::unget(), and std::ws().
|
staticinherited |
Interaction with the standard C I/O objects.
__sync | Whether to synchronize or not. |
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 https://gcc.gnu.org/onlinedocs/libstdc++/manual/fstreams.html#std.io.filestreams.binary
basic_ostream< _CharT, _Traits >::pos_type std::basic_ostream< _CharT, _Traits >::tellp | ( | ) |
Getting the current write position.
If fail()
is not false, returns pos_type
(-1) to indicate failure. Otherwise returns rdbuf()->pubseekoff(0,cur,out)
.
Definition at line 237 of file ostream.tcc.
References std::ios_base::badbit, std::ios_base::cur, std::basic_ios< _CharT, _Traits >::fail(), std::ios_base::out, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ostream< _CharT, _Traits >::seekp().
Referenced by std::basic_ostream< _CharT, _Traits >::flush().
|
inlineinherited |
Fetches the current tied stream.
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 295 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::basic_ios(), std::basic_ios< _CharT, _Traits >::copyfmt(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().
|
inlineinherited |
Ties this stream to an output stream.
__tiestr | The output stream. |
This sets up a new tie; see tie() for more.
Definition at line 307 of file basic_ios.h.
|
inlineinherited |
Clearing format flags.
__mask | The flags to unset. |
This function clears __mask in the format flags.
Definition at line 678 of file ios_base.h.
Referenced by std::defaultfloat(), std::noboolalpha(), std::noshowbase(), std::noshowpoint(), std::noshowpos(), std::noskipws(), std::nounitbuf(), and std::nouppercase().
|
inlineinherited |
Widens characters.
__c | The character to widen. |
Maps a character of char
to a character of char_type
.
Returns the result of
Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html
Definition at line 449 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::fill(), std::getline(), std::normal_distribution< _RealType >::operator()(), std::gamma_distribution< _RealType >::operator()(), std::negative_binomial_distribution< _IntType >::operator()(), std::tr2::operator>>(), and std::operator>>().
|
inlineinherited |
Flags access.
Minimum field width refers to the number of characters.
Definition at line 712 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::num_put< _CharT, _OutIter >::do_put(), and std::operator>>().
|
inlineinherited |
Changing flags.
__wide | The new width value. |
Definition at line 721 of file ios_base.h.
basic_ostream< _CharT, _Traits > & std::basic_ostream< _CharT, _Traits >::write | ( | const char_type * | __s, |
streamsize | __n | ||
) |
Character string insertion.
__s | The array to insert. |
__n | Maximum number of characters to insert. |
Characters are copied from __s
and inserted into the stream until one of the following happens:
__n
characters are insertedDefinition at line 183 of file ostream.tcc.
References std::basic_ostream< _CharT, _Traits >::_M_write(), std::ios_base::badbit, and std::basic_ostream< _CharT, _Traits >::flush().
Referenced by std::basic_ostream< _CharT, _Traits >::put().
|
staticinherited |
Access to unique indices.
This function returns a unique integer every time it is called. It can be used for any purpose, but is primarily intended to be a unique index for the iword and pword functions. The expectation is that an application calls xalloc in order to obtain an index in the iword and pword arrays that can be used without fear of conflict.
The implementation maintains a static variable that is incremented and returned on each invocation. xalloc is guaranteed to return an index that is safe to use in the iword and pword arrays.
|
staticinherited |
A mask of left|right|internal. Useful for the 2-arg form of setf
.
Definition at line 378 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::internal(), std::left(), and std::right().
|
staticinherited |
Seek to end before each write.
Definition at line 432 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::overflow(), and std::basic_filebuf< _CharT, _Traits >::xsputn().
|
staticinherited |
Open and seek to end immediately after opening.
Definition at line 435 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::open().
|
staticinherited |
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error from a file).
Definition at line 402 of file ios_base.h.
Referenced by std::basic_ios< char, _Traits >::bad(), std::basic_ios< char, _Traits >::fail(), std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::operator<<(), 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_ostream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), 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().
|
staticinherited |
A mask of dec|oct|hex. Useful for the 2-arg form of setf
.
Definition at line 381 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::oct(), and std::basic_ostream< _CharT, _Traits >::operator<<().
|
staticinherited |
Request a seek relative to the beginning of the stream.
Definition at line 464 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::seekpos(), and __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync().
|
staticinherited |
Perform input and output in binary mode (as opposed to text mode). This is probably not what you think it is; see https://gcc.gnu.org/onlinedocs/libstdc++/manual/fstreams.html#std.io.filestreams.binary.
Definition at line 440 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::showmanyc().
|
staticinherited |
Insert/extract bool
in alphabetic rather than numeric format.
Definition at line 326 of file ios_base.h.
Referenced by std::boolalpha(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::noboolalpha().
|
staticinherited |
Request a seek relative to the current position within the sequence.
Definition at line 467 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::imbue(), std::basic_filebuf< _CharT, _Traits >::overflow(), std::basic_filebuf< _CharT, _Traits >::pbackfail(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_filebuf< _CharT, _Traits >::seekoff(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync(), std::basic_istream< _CharT, _Traits >::tellg(), and std::basic_ostream< _CharT, _Traits >::tellp().
|
staticinherited |
Converts integer input or generates integer output in decimal base.
Definition at line 329 of file ios_base.h.
Referenced by std::dec().
|
staticinherited |
Request a seek relative to the current end of the sequence.
Definition at line 470 of file ios_base.h.
Referenced by std::basic_filebuf< _CharT, _Traits >::open(), and std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff().
|
staticinherited |
Indicates that an input operation reached the end of an input sequence.
Definition at line 405 of file ios_base.h.
Referenced by std::time_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_date(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_time(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::basic_ios< char, _Traits >::eof(), std::basic_istream< _CharT, _Traits >::get(), std::time_get< _CharT, _InIter >::get(), 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 >::putback(), std::basic_istream< _CharT, _Traits >::read(), std::basic_istream< _CharT, _Traits >::readsome(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::unget(), and std::ws().
|
staticinherited |
Indicates that an input operation failed to read the expected characters, or that an output operation failed to generate the desired characters.
Definition at line 410 of file ios_base.h.
Referenced by std::time_get< _CharT, _InIter >::do_date_order(), 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::time_get< _CharT, _InIter >::get(), 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(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().
|
staticinherited |
Generate floating-point output in fixed-point notation.
Definition at line 332 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::do_get(), std::fixed(), and std::hexfloat().
|
staticinherited |
A mask of scientific|fixed. Useful for the 2-arg form of setf
.
Definition at line 384 of file ios_base.h.
Referenced by std::defaultfloat(), std::num_get< _CharT, _InIter >::do_get(), std::fixed(), std::hexfloat(), and std::scientific().
|
staticinherited |
Indicates all is well.
Definition at line 413 of file ios_base.h.
Referenced by std::time_get< _CharT, _InIter >::do_date_order(), std::time_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::time_get< _CharT, _InIter >::do_get_monthname(), std::time_get< _CharT, _InIter >::do_get_weekday(), std::time_get< _CharT, _InIter >::do_get_year(), std::basic_ostream< _CharT, _Traits >::flush(), std::basic_istream< _CharT, _Traits >::get(), std::time_get< _CharT, _InIter >::get(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::basic_istream< _CharT, _Traits >::operator>>(), std::operator>>(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_ostream< _CharT, _Traits >::put(), std::basic_istream< _CharT, _Traits >::putback(), std::basic_ios< char, _Traits >::rdstate(), 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_ostream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sync(), and std::basic_istream< _CharT, _Traits >::unget().
|
staticinherited |
Converts integer input or generates integer output in hexadecimal base.
Definition at line 335 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::hex(), and std::basic_ostream< _CharT, _Traits >::operator<<().
|
staticinherited |
Open for input. Default for ifstream
and fstream.
Definition at line 443 of file ios_base.h.
Referenced by 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(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync(), 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().
|
staticinherited |
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 340 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::internal().
|
staticinherited |
Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.)
Definition at line 344 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::left().
|
staticinherited |
Converts integer input or generates integer output in octal base.
Definition at line 347 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::do_get(), std::oct(), and std::basic_ostream< _CharT, _Traits >::operator<<().
|
staticinherited |
Open for output. Default for ofstream
and fstream.
Definition at line 446 of file ios_base.h.
Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), std::basic_filebuf< _CharT, _Traits >::overflow(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::pbackfail(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync(), std::basic_ostream< _CharT, _Traits >::tellp(), and std::basic_filebuf< _CharT, _Traits >::xsputn().
|
staticinherited |
Adds fill characters on the left (initial positions) of certain generated output. (I.e., the thing you print is flush right.)
Definition at line 351 of file ios_base.h.
Referenced by std::right().
|
staticinherited |
Generates floating-point output in scientific notation.
Definition at line 354 of file ios_base.h.
Referenced by std::hexfloat(), and std::scientific().
|
staticinherited |
Generates a prefix indicating the numeric base of generated integer output.
Definition at line 358 of file ios_base.h.
Referenced by std::money_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::noshowbase(), and std::showbase().
|
staticinherited |
Generates a decimal-point character unconditionally in generated floating-point output.
Definition at line 362 of file ios_base.h.
Referenced by std::noshowpoint(), and std::showpoint().
|
staticinherited |
Generates a + sign in non-negative generated numeric output.
Definition at line 365 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::do_get(), std::noshowpos(), and std::showpos().
|
staticinherited |
Skips leading white space before certain input operations.
Definition at line 368 of file ios_base.h.
Referenced by std::noskipws(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), and std::skipws().
|
staticinherited |
Open for input. Default for ofstream
.
Definition at line 449 of file ios_base.h.
|
staticinherited |
Flushes output after each output operation.
Definition at line 371 of file ios_base.h.
Referenced by std::nounitbuf(), and std::unitbuf().
|
staticinherited |
Replaces certain lowercase letters with their uppercase equivalents in generated output.
Definition at line 375 of file ios_base.h.
Referenced by std::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), std::nouppercase(), and std::uppercase().