table of contents
- NAME
- SYNOPSIS
- Detailed Description
- Member Typedef Documentation
- Member Enumeration Documentation
- Constructor & Destructor Documentation
- Member Function Documentation
- Member Data Documentation
- Author
other versions
- jessie 4.8.4-1
conflicting packages
std::basic_istream< _CharT, _Traits >(3cxx) | std::basic_istream< _CharT, _Traits >(3cxx) |
NAME¶
std::basic_istream< _CharT, _Traits > - Template class basic_istream.SYNOPSIS¶
Inherits std::basic_ios< _CharT, _Traits >. Inherited by std::basic_ifstream< _CharT, _Traits >, std::basic_iostream< _CharT, _Traits >, and std::basic_istringstream< _CharT, _Traits, _Alloc >.Classes¶
class sentry
Public Types¶
typedef ctype< _CharT > __ctype_type
typedef num_put< _CharT, ostreambuf_iterator< _CharT, _Traits > > __num_put_type
Public Member Functions¶
basic_istream (__streambuf_type *__sb)
__istream_type & operator>> (__istream_type &(*__pf)( __istream_type &))
Extractors
__istream_type & operator>> (bool &__n)
__istream_type & operator>> (float &__f)
Unformatted Input Functions
int_type get ()
operator bool () const
Static Public Member Functions¶
static bool sync_with_stdio (bool __sync=true)
Static Public Attributes¶
static const fmtflags adjustfield
Protected Types¶
enum { _S_local_word_size }
Protected Member Functions¶
basic_istream (const basic_istream &)=delete
Protected Attributes¶
_Callback_list * _M_callbacks
Friends¶
class sentry
Detailed Description¶
template<typename _CharT, typename _Traits>¶
class std::basic_istream< _CharT, _Traits >" Template class basic_istream. Template Parameters:_CharT Type of character stream.
_Traits Traits for character type, defaults to
char_traits<_CharT>.
This is the base class for all input streams. It provides text formatting of all
builtin types, and communicates with any class derived from basic_streambuf to
do the actual input.
Definition at line 83 of file iosfwd.
Member Typedef Documentation¶
template<typename _CharT, typename _Traits> typedef num_put<_CharT, ostreambuf_iterator<_CharT, _Traits> > std::basic_ios< _CharT, _Traits >:: __num_put_type [inherited]¶
These are non-standard types. Definition at line 89 of file basic_ios.h.typedef void(* std::ios_base::event_callback) ( event __e, ios_base &__b, int __i) [inherited]¶
The type of an event callback function. Parameters:__e One of the members of the event enum.
__b Reference to the ios_base object.
__i The integer provided when the callback was registered.
Event callbacks are user defined functions that get called during several
ios_base and basic_ios functions, specifically imbue(), copyfmt(), and ~ios().
Definition at line 504 of file ios_base.h.
typedef _Ios_Fmtflags std::ios_base::fmtflags [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:- •
- boolalpha
- •
- dec
- •
- fixed
- •
- hex
- •
- internal
- •
- left
- •
- oct
- •
- right
- •
- scientific
- •
- showbase
- •
- showpoint
- •
- showpos
- •
- skipws
- •
- unitbuf
- •
- uppercase
- •
- adjustfield
- •
- basefield
- •
- floatfield
typedef _Ios_Iostate std::ios_base::iostate [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:- •
- badbit
- •
- eofbit
- •
- failbit
- •
- goodbit
typedef _Ios_Openmode std::ios_base::openmode [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:- •
- app
- •
- ate
- •
- binary
- •
- in
- •
- out
- •
- trunc
typedef _Ios_Seekdir std::ios_base::seekdir [inherited]¶
This is an enumerated type. _Ios_Seekdir is implementation-defined. Defined values of type seekdir are:- •
- beg
- •
- cur, equivalent to SEEK_CUR in the C standard library.
- •
- end, equivalent to SEEK_END in the C standard library.
Member Enumeration Documentation¶
enum std::ios_base::event [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.Constructor & Destructor Documentation¶
template<typename _CharT, typename _Traits> std::basic_istream< _CharT, _Traits >:: basic_istream (__streambuf_type * __sb) [inline], [explicit]¶
Base constructor. This ctor is almost never called by the user directly, rather from derived classes' initialization lists, which pass a pointer to their own stream buffer. Definition at line 93 of file istream.template<typename _CharT, typename _Traits> virtual std::basic_istream< _CharT, _Traits >::~ basic_istream () [inline], [virtual]¶
Base destructor. This does very little apart from providing a virtual base dtor. Definition at line 103 of file istream.Member Function Documentation¶
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 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().
template<typename _CharT, typename _Traits> bool std::basic_ios< _CharT, _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 211 of file basic_ios.h.
template<typename _CharT , typename _Traits > void std::basic_ios< _CharT, _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.
Definition at line 41 of file basic_ios.tcc.
Referenced by std::basic_ios< char, _Traits >::exceptions(),
std::__detail::operator>>(), std::basic_istream< char
>::putback(), std::basic_ios< char, _Traits >::rdstate(),
std::basic_istream< char >::seekg(), std::basic_ios< char, _Traits
>::setstate(), and std::basic_istream< char >::unget().
template<typename _CharT , typename _Traits > basic_ios< _CharT, _Traits > & std::basic_ios< _CharT, _Traits >::copyfmt (const basic_ios< _CharT, _Traits > & __rhs) [inherited]¶
Copies fields of __rhs into this. Parameters:__rhs The source values for the copies.
Returns:
Reference to this object.
All fields of __rhs are copied into this object except that rdbuf() and
rdstate() remain unchanged. All values in the pword and iword arrays are
copied. Before copying, each callback is invoked with erase_event. After
copying, each (new) callback is invoked with copyfmt_event. The final step is
to copy exceptions().
Definition at line 63 of file basic_ios.tcc.
Referenced by std::basic_ios< char, _Traits >::rdbuf().
template<typename _CharT, typename _Traits> bool std::basic_ios< _CharT, _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 190 of file basic_ios.h.
template<typename _CharT, typename _Traits> iostate std::basic_ios< _CharT, _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 222 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::copyfmt(), and
std::basic_ios< char, _Traits >::setstate().
template<typename _CharT, typename _Traits> void std::basic_ios< _CharT, _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 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:
#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 257 of file basic_ios.h.
template<typename _CharT, typename _Traits> bool std::basic_ios< _CharT, _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 201 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::operator bool(),
std::basic_ios< char, _Traits >::operator!(), and std::regex_traits<
_Ch_type >::value().
template<typename _CharT, typename _Traits> char_type std::basic_ios< _CharT, _Traits >::fill () const [inline], [inherited]¶
Retrieves the empty character. Returns:The current fill character.
It defaults to a space (' ') in the current locale.
Definition at line 370 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::copyfmt(), and
std::basic_ios< char, _Traits >::fill().
template<typename _CharT, typename _Traits> char_type std::basic_ios< _CharT, _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 390 of file basic_ios.h.
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 619 of file ios_base.h.
Referenced by std::basic_ios< char, _Traits >::copyfmt(),
std::mersenne_twister_engine< uint_fast32_t, 32, 624, 397, 31,
0x9908b0dfUL, 11, 0xffffffffUL, 7, 0x9d2c5680UL, 15, 0xefc60000UL, 18,
1812433253UL >::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::basic_ostream< char >::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().
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 630 of file ios_base.h.
template<typename _CharT, typename _Traits> streamsize std::basic_istream< _CharT, _Traits >::gcount () const [inline]¶
Character counting. Returns:The number of characters extracted by the previous
unformatted input function dispatched for this stream.
Definition at line 269 of file istream.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits >::int_type std::basic_istream< _CharT, _Traits >::get (void)¶
Simple extraction. Returns:A character, or eof().
Tries to extract a character. If none are available, sets failbit and returns
traits::eof().
Definition at line 236 of file istream.tcc.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::get (char_type & __c)¶
Simple extraction. Parameters:__c The character in which to store data.
Returns:
*this
Tries to extract a character and store it in __c. If none are available,
sets failbit and returns traits::eof().
Note:
This function is not overloaded on signed char and
unsigned char.
Definition at line 272 of file istream.tcc.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::get (char_type * __s, streamsize __n, char_type __delim)¶
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
This function is not overloaded on signed char and
unsigned char.
Definition at line 309 of file istream.tcc.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::get (char_type * __s, streamsize __n) [inline]¶
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('\n')).
Definition at line 354 of file istream.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::get (__streambuf_type & __sb, char_type __delim)¶
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)
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::get ( __streambuf_type & __sb) [inline]¶
Extraction into another streambuf. Parameters:__sb A streambuf in which to store data.
Returns:
*this
Returns get(__sb,widen('\n')).
Definition at line 387 of file istream.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::getline (char_type * __s, streamsize __n, char_type __delim)¶
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
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::getline (char_type * __s, streamsize __n) [inline]¶
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('\n')).
Definition at line 427 of file istream.
template<> basic_istream< char > & std::basic_istream< char >::getline (char_type * __s, streamsize __n, char_type __delim)¶
Explicit specialization declarations, defined in src/istream.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 763 of file ios_base.h.
Referenced by std::basic_ios< char, _Traits >::copyfmt(),
std::money_put< _CharT, _OutIter >::do_put(), and std::ws().
template<typename _CharT, typename _Traits> bool std::basic_ios< _CharT, _Traits >::good () const [inline], [inherited]¶
Fast error checking. Returns:True if no error flags are set.
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().
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::ignore (streamsize __n, int_type __delim)¶
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().
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::ignore (streamsize __n)¶
Simple extraction. Returns:A character, or eof().
Tries to extract a character. If none are available, sets failbit and returns
traits::eof().
Definition at line 493 of file istream.tcc.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::ignore (void)¶
Simple extraction. Returns:A character, or eof().
Tries to extract a character. If none are available, sets failbit and returns
traits::eof().
Definition at line 460 of file istream.tcc.
template<typename _CharT , typename _Traits > locale std::basic_ios< _CharT, _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++/manual/localization.html
Definition at line 114 of file basic_ios.tcc.
Referenced by std::basic_ios< char, _Traits >::fill().
template<typename _CharT, typename _Traits> void std::basic_ios< _CharT, _Traits >::init ( basic_streambuf< _CharT, _Traits > * __sb) [protected], [inherited]¶
All setup is performed here. This is called from the public constructor. It is not virtual and cannot be redefined. Definition at line 126 of file basic_ios.tcc. Referenced by std::basic_ios< char, _Traits >::basic_ios().long& std::ios_base::iword (int __ix) [inline], [inherited]¶
Access to integer array. Parameters:__ix Index into the array.
Returns:
A reference to an integer associated with the
index.
The iword function provides access to an array of integers that can be used for
any purpose. The array grows as required to hold the supplied index. All
integers in the array are initialized to 0.
The implementation reserves several indices. You should use xalloc to obtain an
index that is safe to use. Also note that since the array can grow
dynamically, it is not safe to hold onto the reference.
Definition at line 809 of file ios_base.h.
template<typename _CharT, typename _Traits> char std::basic_ios< _CharT, _Traits >::narrow ( char_type __c, char __dfault) const [inline], [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++/manual/localization.html Definition at line 430 of file basic_ios.h.
template<typename _CharT, typename _Traits> std::basic_ios< _CharT, _Traits >::operator bool () const [inline], [explicit], [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 117 of file basic_ios.h.template<typename _CharT, typename _Traits> bool std::basic_ios< _CharT, _Traits >::operator! () 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 125 of file basic_ios.h.template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> ( __istream_type &(*)( __istream_type &) __pf) [inline]¶
Interface for manipulators. Manipulators such as std::ws and std::dec use these functions in constructs like std::cin >> std::ws. For more information, see the iomanip header. Definition at line 120 of file istream. Referenced by std::ws().template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> ( __ios_type &(*)( __ios_type &) __pf) [inline]¶
Interface for manipulators. Manipulators such as std::ws and std::dec use these functions in constructs like std::cin >> std::ws. For more information, see the iomanip header. Definition at line 124 of file istream.template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> ( ios_base &(*)( ios_base &) __pf) [inline]¶
Interface for manipulators. Manipulators such as std::ws and std::dec use these functions in constructs like std::cin >> std::ws. For more information, see the iomanip header. Definition at line 131 of file istream.template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (bool & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 168 of file istream.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::operator>> (short & __n)¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 114 of file istream.tcc.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (unsigned short & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 175 of file istream.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::operator>> (int & __n)¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 159 of file istream.tcc.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (unsigned int & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 182 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (long & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 186 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (unsigned long & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 190 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (long long & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 195 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (unsigned long long & __n) [inline]¶
Integer arithmetic extractors. Parameters:__n A variable of builtin integral type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 199 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (float & __f) [inline]¶
Floating point arithmetic extractors. Parameters:__f A variable of builtin floating point
type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 214 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (double & __f) [inline]¶
Floating point arithmetic extractors. Parameters:__f A variable of builtin floating point
type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 218 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (long double & __f) [inline]¶
Floating point arithmetic extractors. Parameters:__f A variable of builtin floating point
type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 222 of file istream.
template<typename _CharT, typename _Traits> __istream_type& std::basic_istream< _CharT, _Traits >::operator>> (void *& __p) [inline]¶
Basic arithmetic extractors. Parameters:__p A variable of pointer type.
Returns:
*this if successful
These functions use the stream's current locale (specifically, the num_get
facet) to parse the input data.
Definition at line 235 of file istream.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::operator>> (__streambuf_type * __sb)¶
Extracting into another streambuf. Parameters:__sb A pointer to a streambuf
This function behaves like one of the basic arithmetic extractors, in that it
also constructs a sentry object and has the same error handling behavior.
If __sb is NULL, the stream will set failbit in its error state.
Characters are extracted from this stream and inserted into the __sb streambuf
until one of the following occurs:
- •
- 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)
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits >::int_type std::basic_istream< _CharT, _Traits >::peek (void)¶
Looking ahead in the stream. Returns:The next character, or eof().
If, after constructing the sentry object, good() is false, returns
traits::eof(). Otherwise reads but does not extract the next input character.
Definition at line 620 of file istream.tcc.
streamsize std::ios_base::precision () const [inline], [inherited]¶
Flags access. Returns:The precision to generate on certain output
operations.
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< char, _Traits >::copyfmt().
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 698 of file ios_base.h.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::putback (char_type __c)¶
Unextracting a single character. Parameters:__c The character to push back into the input
stream.
Returns:
*this
If rdbuf() is not null, calls rdbuf()->sputbackc(c).
If rdbuf() is null or if sputbackc() fails, sets badbit in the error state.
Note:
This function first clears eofbit. Since no characters
are extracted, the next call to gcount() will return 0, as required by DR
60.
Definition at line 711 of file istream.tcc.
void*& std::ios_base::pword (int __ix) [inline], [inherited]¶
Access to void pointer array. Parameters:__ix Index into the array.
Returns:
A reference to a void* associated with the index.
The pword function provides access to an array of pointers that can be used for
any purpose. The array grows as required to hold the supplied index. All
pointers in the array are initialized to 0.
The implementation reserves several indices. You should use xalloc to obtain an
index that is safe to use. Also note that since the array can grow
dynamically, it is not safe to hold onto the reference.
Definition at line 830 of file ios_base.h.
template<typename _CharT, typename _Traits> basic_streambuf<_CharT, _Traits>* std::basic_ios< _CharT, _Traits >::rdbuf () const [inline], [inherited]¶
Accessing the underlying buffer. Returns:The current stream buffer.
This does not change the state of the stream.
Definition at line 321 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::rdbuf(),
std::basic_istream< _CharT, _Traits >::sentry::sentry(), and std::ws().
template<typename _CharT, typename _Traits> basic_streambuf< _CharT, _Traits > * std::basic_ios< _CharT, _Traits >::rdbuf (basic_streambuf< _CharT, _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. For example:
std::fstream foo; // or some other derived type std::streambuf* p = .....; foo.ios::rdbuf(p); // ios == basic_ios<char>Definition at line 53 of file basic_ios.tcc.
template<typename _CharT, typename _Traits> iostate std::basic_ios< _CharT, _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 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< char
>::putback(), std::basic_istream< char >::seekg(), std::basic_ios<
char, _Traits >::setstate(), and std::basic_istream< char >::unget().
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::read (char_type * __s, streamsize __n)¶
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.
This function is not overloaded on signed char and
unsigned char.
Definition at line 650 of file istream.tcc.
template<typename _CharT , typename _Traits > streamsize std::basic_istream< _CharT, _Traits >::readsome (char_type * __s, streamsize __n)¶
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)
void std::ios_base::register_callback ( event_callback __fn, int __index) [inherited]¶
Add the callback __fn with parameter __index. Parameters:__fn The function to add.
__index The integer to pass to the function when invoked.
Registers a function as an event callback with an integer parameter to be passed
to the function when invoked. Multiple copies of the function are allowed. If
there are multiple callbacks, they are invoked in the order they were
registered.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::seekg (pos_type __pos)¶
Changing the current read position. Parameters:__pos A file position object.
Returns:
*this
If fail() is not true, calls rdbuf()->pubseekpos(__pos). If that function
fails, sets failbit.
Note:
This function first clears eofbit. It does not count the
number of characters extracted, if any, and therefore does not affect the next
call to gcount().
Definition at line 845 of file istream.tcc.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::seekg (off_type __off, ios_base::seekdir __dir)¶
Changing the current read position. Parameters:__off A file offset object.
__dir The direction in which to seek.
Returns:
*this
If fail() is not true, calls rdbuf()->pubseekoff(__off,__dir). If that
function fails, sets failbit.
Note:
This function first clears eofbit. It does not count the
number of characters extracted, if any, and therefore does not affect the next
call to gcount().
Definition at line 884 of file istream.tcc.
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 646 of file ios_base.h.
Referenced by std::__detail::operator>>().
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 663 of file ios_base.h.
template<typename _CharT, typename _Traits> void std::basic_ios< _CharT, _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 157 of file basic_ios.h.
Referenced by std::operator<<(), std::basic_ostream< _CharT, _Traits
>::sentry::sentry(), std::basic_istream< _CharT, _Traits
>::sentry::sentry(), and std::ws().
template<typename _CharT , typename _Traits > int std::basic_istream< _CharT, _Traits >::sync (void)¶
Synchronizing the stream buffer. Returns:0 on success, -1 on failure
If rdbuf() is a null pointer, returns -1.
Otherwise, calls rdbuf()->pubsync(), and if that returns -1, sets badbit and
returns -1.
Otherwise, returns 0.
Note:
This function does not count the number of characters
extracted, if any, and therefore does not affect the next call to
gcount().
Definition at line 781 of file istream.tcc.
static 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
https://gcc.gnu.org/onlinedocs/libstdc++/manual/fstreams.html#std.io.filestreams.binary
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits >::pos_type std::basic_istream< _CharT, _Traits >::tellg (void)¶
Getting the current read position. Returns:A file position object.
If fail() is not false, returns pos_type(-1) to indicate failure. Otherwise
returns rdbuf()->pubseekoff(0,cur,in).
Note:
This function does not count the number of characters
extracted, if any, and therefore does not affect the next call to gcount(). At
variance with putback, unget and seekg, eofbit is not cleared first.
Definition at line 817 of file istream.tcc.
template<typename _CharT, typename _Traits> basic_ostream<_CharT, _Traits>* std::basic_ios< _CharT, _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 295 of file basic_ios.h.
Referenced by std::basic_ios< char, _Traits >::basic_ios(),
std::basic_ios< char, _Traits >::copyfmt(), std::basic_ostream<
_CharT, _Traits >::sentry::sentry(), and std::basic_istream< _CharT,
_Traits >::sentry::sentry().
template<typename _CharT, typename _Traits> basic_ostream<_CharT, _Traits>* std::basic_ios< _CharT, _Traits >::tie ( basic_ostream< _CharT, _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 307 of file basic_ios.h.
template<typename _CharT , typename _Traits > basic_istream< _CharT, _Traits > & std::basic_istream< _CharT, _Traits >::unget (void)¶
Unextracting the previous character. Returns:*this
If rdbuf() is not null, calls rdbuf()->sungetc(c).
If rdbuf() is null or if sungetc() fails, sets badbit in the error state.
Note:
This function first clears eofbit. Since no characters
are extracted, the next call to gcount() will return 0, as required by DR
60.
Definition at line 746 of file istream.tcc.
Referenced by std::__detail::operator>>().
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 678 of file ios_base.h.
template<typename _CharT, typename _Traits> char_type std::basic_ios< _CharT, _Traits >::widen (char __c) const [inline], [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++/manual/localization.html Definition at line 449 of file basic_ios.h. Referenced by std::basic_ios< char, _Traits >::fill(), std::getline(), and std::tr2::operator>>().
streamsize std::ios_base::width () const [inline], [inherited]¶
Flags access. Returns:The minimum field width to generate on output
operations.
Minimum field width refers to the number of characters.
Definition at line 712 of file ios_base.h.
Referenced by std::basic_ios< char, _Traits >::copyfmt(),
std::money_get< _CharT, _InIter >::do_get(), and std::num_put<
_CharT, _OutIter >::do_put().
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 721 of file ios_base.h.
static int std::ios_base::xalloc () [static], [inherited]¶
Access to unique indices. Returns:An integer different from all previous calls.
This function returns a unique integer every time it is called. It can be used
for any purpose, but is primarily intended to be a unique index for the iword
and pword functions. The expectation is that an application calls xalloc in
order to obtain an index in the iword and pword arrays that can be used
without fear of conflict.
The implementation maintains a static variable that is incremented and returned
on each invocation. xalloc is guaranteed to return an index that is safe to
use in the iword and pword arrays.
Member Data Documentation¶
template<typename _CharT, typename _Traits> streamsize std::basic_istream< _CharT, _Traits >::_M_gcount [protected]¶
The number of characters extracted in the previous unformatted function; see gcount(). Definition at line 82 of file istream. Referenced by std::basic_istream< char >::get(), std::basic_istream< char >::getline(), std::basic_istream< char >::ignore(), std::basic_istream< char >::peek(), std::basic_istream< char >::putback(), std::basic_istream< char >::read(), std::basic_istream< char >::readsome(), and std::basic_istream< char >::unget().const fmtflags std::ios_base::adjustfield [static], [inherited]¶
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(), and std::num_put< _CharT, _OutIter >::do_put().const openmode std::ios_base::app [static], [inherited]¶
Seek to end before each write. Definition at line 432 of file ios_base.h.const openmode std::ios_base::ate [static], [inherited]¶
Open and seek to end immediately after opening. Definition at line 435 of file ios_base.h.const iostate std::ios_base::badbit [static], [inherited]¶
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(), and std::operator<<().const fmtflags std::ios_base::basefield [static], [inherited]¶
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::num_get< _CharT, _InIter >::do_get(), std::num_put< _CharT, _OutIter >::do_put(), and std::basic_ostream< char >::operator<<().const seekdir std::ios_base::beg [static], [inherited]¶
Request a seek relative to the beginning of the stream. Definition at line 464 of file ios_base.h. Referenced by __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync().const openmode std::ios_base::binary [static], [inherited]¶
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.const fmtflags std::ios_base::boolalpha [static], [inherited]¶
Insert/extract bool in alphabetic rather than numeric format. Definition at line 326 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], [inherited]¶
Request a seek relative to the current position within the sequence. Definition at line 467 of file ios_base.h. Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), and __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync().const fmtflags std::ios_base::dec [static], [inherited]¶
Converts integer input or generates integer output in decimal base. Definition at line 329 of file ios_base.h.const seekdir std::ios_base::end [static], [inherited]¶
Request a seek relative to the current end of the sequence. Definition at line 470 of file ios_base.h. Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff().const iostate std::ios_base::eofbit [static], [inherited]¶
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::time_get< _CharT, _InIter >::get(), std::basic_istream< char >::putback(), std::basic_istream< char >::seekg(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< char >::unget(), and std::ws().const iostate std::ios_base::failbit [static], [inherited]¶
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::time_get< _CharT, _InIter >::get(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), and std::basic_istream< _CharT, _Traits >::sentry::sentry().const fmtflags std::ios_base::fixed [static], [inherited]¶
Generate floating-point output in fixed-point notation. Definition at line 332 of file ios_base.h.const fmtflags std::ios_base::floatfield [static], [inherited]¶
A mask of scientific|fixed. Useful for the 2-arg form of setf. Definition at line 384 of file ios_base.h.const iostate std::ios_base::goodbit [static], [inherited]¶
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< char >::flush(), std::basic_istream< char >::get(), std::time_get< _CharT, _InIter >::get(), std::basic_istream< char >::getline(), std::basic_istream< char >::ignore(), std::basic_ostream< char >::operator<<(), std::basic_istream< char >::operator>>(), std::operator>>(), std::basic_istream< char >::peek(), std::basic_ostream< char >::put(), std::basic_istream< char >::putback(), std::basic_ios< char, _Traits >::rdstate(), std::basic_istream< char >::read(), std::basic_istream< char >::readsome(), std::basic_istream< char >::seekg(), std::basic_ostream< char >::seekp(), std::basic_ostream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), std::basic_istream< char >::sync(), and std::basic_istream< char >::unget().const fmtflags std::ios_base::hex [static], [inherited]¶
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(), and std::basic_ostream< char >::operator<<().const openmode std::ios_base::in [static], [inherited]¶
Open for input. Default for ifstream and fstream. Definition at line 443 of file ios_base.h. Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync(), and std::basic_stringbuf< _CharT, _Traits, _Alloc >::underflow().const fmtflags std::ios_base::internal [static], [inherited]¶
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().const fmtflags std::ios_base::left [static], [inherited]¶
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(), and std::num_put< _CharT, _OutIter >::do_put().const fmtflags std::ios_base::oct [static], [inherited]¶
Converts integer input or generates integer output in octal base. Definition at line 347 of file ios_base.h. Referenced by std::basic_ostream< char >::operator<<().const openmode std::ios_base::out [static], [inherited]¶
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_stringbuf< _CharT, _Traits, _Alloc >::pbackfail(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), and __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >::sync().const fmtflags std::ios_base::right [static], [inherited]¶
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.const fmtflags std::ios_base::scientific [static], [inherited]¶
Generates floating-point output in scientific notation. Definition at line 354 of file ios_base.h.const fmtflags std::ios_base::showbase [static], [inherited]¶
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(), and std::num_put< _CharT, _OutIter >::do_put().const fmtflags std::ios_base::showpoint [static], [inherited]¶
Generates a decimal-point character unconditionally in generated floating-point output. Definition at line 362 of file ios_base.h.const fmtflags std::ios_base::showpos [static], [inherited]¶
Generates a + sign in non-negative generated numeric output. Definition at line 365 of file ios_base.h.const fmtflags std::ios_base::skipws [static], [inherited]¶
Skips leading white space before certain input operations. Definition at line 368 of file ios_base.h. Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry().const openmode std::ios_base::trunc [static], [inherited]¶
Open for input. Default for ofstream. Definition at line 449 of file ios_base.h.const fmtflags std::ios_base::unitbuf [static], [inherited]¶
Flushes output after each output operation. Definition at line 371 of file ios_base.h.const fmtflags std::ios_base::uppercase [static], [inherited]¶
Replaces certain lowercase letters with their uppercase equivalents in generated output. Definition at line 375 of file ios_base.h. Referenced by std::num_put< _CharT, _OutIter >::do_put().Author¶
Generated automatically by Doxygen for libstdc++ from the source code.Wed Feb 14 2018 | libstdc++ |