Inheritance diagram for std::basic_iostream< _CharT, _Traits >:
Public Types | |
typedef _CharT | char_type |
typedef _Traits::int_type | int_type |
typedef _Traits::pos_type | pos_type |
typedef _Traits::off_type | off_type |
typedef _Traits | traits_type |
typedef _Ios_Fmtflags | fmtflags |
This is a bitmask type. | |
typedef _Ios_Iostate | iostate |
This is a bitmask type. | |
typedef _Ios_Openmode | openmode |
This is a bitmask type. | |
typedef _Ios_Seekdir | seekdir |
This is an enumerated type. | |
typedef void(* | event_callback )(event, ios_base &, int) |
enum | event |
typedef _CharT | char_type |
typedef _Traits::int_type | int_type |
typedef _Traits::pos_type | pos_type |
typedef _Traits::off_type | off_type |
typedef _Traits | traits_type |
Public Member Functions | |
basic_iostream (basic_streambuf< _CharT, _Traits > *__sb) | |
Constructor does nothing. | |
virtual | ~basic_iostream () |
Destructor does nothing. | |
streamsize | gcount () const |
Character counting. | |
iostate | rdstate () const |
Returns the error state of the stream buffer. | |
void | clear (iostate __state=goodbit) |
[Re]sets the error state. | |
void | setstate (iostate __state) |
Sets additional flags in the error state. | |
bool | good () const |
Fast error checking. | |
bool | eof () const |
Fast error checking. | |
bool | fail () const |
Fast error checking. | |
bool | bad () const |
Fast error checking. | |
iostate | exceptions () const |
Throwing exceptions on errors. | |
void | exceptions (iostate __except) |
Throwing exceptions on errors. | |
basic_ostream< _CharT, _Traits > * | tie () const |
Fetches the current tied stream. | |
basic_ostream< _CharT, _Traits > * | tie (basic_ostream< _CharT, _Traits > *__tiestr) |
Ties this stream to an output stream. | |
basic_streambuf< _CharT, _Traits > * | rdbuf () const |
Accessing the underlying buffer. | |
basic_streambuf< _CharT, _Traits > * | rdbuf (basic_streambuf< _CharT, _Traits > *__sb) |
Changing the underlying buffer. | |
basic_ios & | copyfmt (const basic_ios &__rhs) |
char_type | fill () const |
Retreives the "empty" character. | |
char_type | fill (char_type __ch) |
Sets a new "empty" character. | |
locale | imbue (const locale &__loc) |
Moves to a new locale. | |
char | narrow (char_type __c, char __dfault) const |
Squeezes characters. | |
char_type | widen (char __c) const |
Widens characters. | |
void | register_callback (event_callback __fn, int __index) |
fmtflags | flags () const |
Access to format flags. | |
fmtflags | flags (fmtflags __fmtfl) |
Setting new format flags all at once. | |
fmtflags | setf (fmtflags __fmtfl) |
Setting new format flags. | |
fmtflags | setf (fmtflags __fmtfl, fmtflags __mask) |
Setting new format flags. | |
void | unsetf (fmtflags __mask) |
Clearing format flags. | |
streamsize | precision () const |
Flags access. | |
streamsize | precision (streamsize __prec) |
Changing flags. | |
streamsize | width () const |
Flags access. | |
streamsize | width (streamsize __wide) |
Changing flags. | |
locale | getloc () const |
Locale access. | |
long & | iword (int __ix) |
void *& | pword (int __ix) |
__ostream_type & | flush () |
Synchronizing the stream buffer. | |
pos_type | tellp () |
Getting the current write position. | |
__ostream_type & | seekp (pos_type) |
Changing the current write position. | |
__ostream_type & | seekp (off_type, ios_base::seekdir) |
Changing the current write position. | |
__istream_type & | operator>> (__istream_type &(*__pf)(__istream_type &)) |
Interface for manipulators. | |
__istream_type & | operator>> (__ios_type &(*__pf)(__ios_type &)) |
Interface for manipulators. | |
__istream_type & | operator>> (ios_base &(*__pf)(ios_base &)) |
Interface for manipulators. | |
Arithmetic Extractors | |
All the operator>> functions (aka formatted input functions) have some common behavior. Each starts by constructing a temporary object of type std::basic_istream::sentry with the second argument (noskipws) set to false. 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 extract whatever data is appropriate for the type of the argument.
If an exception is thrown during extraction, 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. | |
__istream_type & | operator>> (bool &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (short &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (unsigned short &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (int &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (unsigned int &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (long &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (unsigned long &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (long long &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (unsigned long long &__n) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (float &__f) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (double &__f) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (long double &__f) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (void *&__p) |
Basic arithmetic extractors. | |
__istream_type & | operator>> (__streambuf_type *__sb) |
Extracting into another streambuf. | |
Unformatted Input Functions | |
All the unformatted input functions have some common behavior. Each starts by constructing a temporary object of type std::basic_istream::sentry with the second argument (noskipws) set to true. 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 extract whatever data is appropriate for the type of the argument. The number of characters extracted is stored for later retrieval by gcount().
If an exception is thrown during extraction, 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. | |
int_type | get () |
Simple extraction. | |
__istream_type & | get (char_type &__c) |
Simple extraction. | |
__istream_type & | get (char_type *__s, streamsize __n, char_type __delim) |
Simple multiple-character extraction. | |
__istream_type & | get (char_type *__s, streamsize __n) |
Simple multiple-character extraction. | |
__istream_type & | get (__streambuf_type &__sb, char_type __delim) |
Extraction into another streambuf. | |
__istream_type & | get (__streambuf_type &__sb) |
Extraction into another streambuf. | |
__istream_type & | getline (char_type *__s, streamsize __n, char_type __delim) |
String extraction. | |
__istream_type & | getline (char_type *__s, streamsize __n) |
String extraction. | |
__istream_type & | ignore (streamsize __n=1, int_type __delim=traits_type::eof()) |
Discarding characters. | |
int_type | peek () |
Looking ahead in the stream. | |
__istream_type & | read (char_type *__s, streamsize __n) |
Extraction without delimiters. | |
streamsize | readsome (char_type *__s, streamsize __n) |
Extraction until the buffer is exhausted, but no more. | |
__istream_type & | putback (char_type __c) |
Unextracting a single character. | |
__istream_type & | unget () |
Unextracting the previous character. | |
int | sync () |
Synchronizing the stream buffer. | |
pos_type | tellg () |
Getting the current read position. | |
__istream_type & | seekg (pos_type) |
Changing the current read position. | |
__istream_type & | seekg (off_type, ios_base::seekdir) |
Changing the current read position. | |
operator void * () const | |
The quick-and-easy status check. | |
bool | operator! () const |
The quick-and-easy status check. | |
__ostream_type & | operator<< (__ostream_type &(*__pf)(__ostream_type &)) |
Interface for manipulators. | |
__ostream_type & | operator<< (__ios_type &(*__pf)(__ios_type &)) |
Interface for manipulators. | |
__ostream_type & | operator<< (ios_base &(*__pf)(ios_base &)) |
Interface for manipulators. | |
Arithmetic Inserters | |
All the operator<< functions (aka formatted output functions) have some common behavior. Each starts by constructing a temporary object of type std::basic_ostream::sentry. This can have 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 without causing an ios_base::failure to be thrown. The original exception will then be rethrown. | |
__ostream_type & | operator<< (long __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (unsigned long __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (bool __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (short __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (unsigned short __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (int __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (unsigned int __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (long long __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (unsigned long long __n) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (double __f) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (float __f) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (long double __f) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (const void *__p) |
Basic arithmetic inserters. | |
__ostream_type & | operator<< (__streambuf_type *__sb) |
Extracting from another streambuf. | |
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) |
Simple insertion. | |
__ostream_type & | write (const char_type *__s, streamsize __n) |
Character string insertion. | |
Static Public Member Functions | |
bool | sync_with_stdio (bool __sync=true) |
Interaction with the standard C I/O objects. | |
int | xalloc () throw () |
Static Public Attributes | |
const fmtflags | boolalpha |
Insert/extract bool in alphabetic rather than numeric format. | |
const fmtflags | dec |
Converts integer input or generates integer output in decimal base. | |
const fmtflags | fixed |
Generate floating-point output in fixed-point notation. | |
const fmtflags | hex |
Converts integer input or generates integer output in hexadecimal base. | |
const fmtflags | internal |
Adds fill characters at a designated internal point in certain generated output, or identical to right if no such point is designated. | |
const fmtflags | left |
Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.). | |
const fmtflags | oct |
Converts integer input or generates integer output in octal base. | |
const fmtflags | right |
Adds fill characters on the left (initial positions) of certain generated output. (I.e., the thing you print is flush right.). | |
const fmtflags | scientific |
Generates floating-point output in scientific notation. | |
const fmtflags | showbase |
Generates a prefix indicating the numeric base of generated integer output. | |
const fmtflags | showpoint |
Generates a decimal-point character unconditionally in generated floating-point output. | |
const fmtflags | showpos |
Generates a + sign in non-negative generated numeric output. | |
const fmtflags | skipws |
Skips leading white space before certain input operations. | |
const fmtflags | unitbuf |
Flushes output after each output operation. | |
const fmtflags | uppercase |
Replaces certain lowercase letters with their uppercase equivalents in generated output. | |
const fmtflags | adjustfield |
A mask of left|right|internal. Useful for the 2-arg form of setf . | |
const fmtflags | basefield |
A mask of dec|oct|hex. Useful for the 2-arg form of setf . | |
const fmtflags | floatfield |
A mask of scientific|fixed. Useful for the 2-arg form of setf . | |
const iostate | badbit |
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error from a file). | |
const iostate | eofbit |
Indicates that an input operation reached the end of an input sequence. | |
const iostate | failbit |
Indicates that an input operation failed to read the expected characters, or that an output operation failed to generate the desired characters. | |
const iostate | goodbit |
Indicates all is well. | |
const openmode | app |
Seek to end before each write. | |
const openmode | ate |
Open and seek to end immediately after opening. | |
const openmode | binary |
Perform input and output in binary mode (as opposed to text mode). This is probably not what you think it is; see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#3 and http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more. | |
const openmode | in |
Open for input. Default for ifstream and fstream. | |
const openmode | out |
Open for output. Default for ofstream and fstream. | |
const openmode | trunc |
Open for input. Default for ofstream . | |
const seekdir | beg |
Request a seek relative to the beginning of the stream. | |
const seekdir | cur |
Request a seek relative to the current position within the sequence. | |
const seekdir | end |
Request a seek relative to the current end of the sequence. | |
Protected Member Functions | |
void | init (basic_streambuf< _CharT, _Traits > *__sb, __locale_cache< _CharT > *__cache=0) |
All setup is performed here. |
This class multiply inherits from the input and output stream classes simply to provide a single interface.
Definition at line 701 of file istream.
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ofstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_ostringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 62 of file ostream. Referenced by std::basic_ostream< _CharT, _Traits >::operator<<(). |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ifstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_istringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 62 of file istream. Referenced by std::basic_istream< _CharT, _Traits >::get(), and std::basic_istream< _CharT, _Traits >::getline(). |
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Definition at line 357 of file ios_base.h. |
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This is a bitmask type.
Definition at line 214 of file ios_base.h. |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ofstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_ostringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 63 of file ostream. Referenced by std::basic_ostream< _CharT, _Traits >::put(). |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ifstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_istringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 63 of file istream. Referenced by std::basic_istream< _CharT, _Traits >::get(), std::basic_istream< _CharT, _Traits >::getline(), std::basic_istream< _CharT, _Traits >::ignore(), std::basic_istream< _CharT, _Traits >::peek(), std::basic_istream< _CharT, _Traits >::putback(), and std::basic_istream< _CharT, _Traits >::unget(). |
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This is a bitmask type.
Definition at line 271 of file ios_base.h. |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ofstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_ostringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 65 of file ostream. Referenced by std::basic_ostream< _CharT, _Traits >::seekp(). |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ifstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_istringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 65 of file istream. Referenced by std::basic_istream< _CharT, _Traits >::seekg(). |
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This is a bitmask type.
Definition at line 298 of file ios_base.h. |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ofstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_ostringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 64 of file ostream. Referenced by std::basic_ostream< _CharT, _Traits >::seekp(), and std::basic_ostream< _CharT, _Traits >::tellp(). |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ifstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_istringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. Definition at line 64 of file istream. Referenced by std::basic_istream< _CharT, _Traits >::seekg(), and std::basic_istream< _CharT, _Traits >::tellg(). |
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This is an enumerated type.
Definition at line 325 of file ios_base.h. |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ofstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_ostringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. |
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These are standard types. They permit a standardized way of referring to names of (or names dependant on) the template parameters, which are specific to the implementation. Reimplemented from std::basic_ios< _CharT, _Traits >. Reimplemented in std::basic_ifstream< _CharT, _Traits >, std::basic_fstream< _CharT, _Traits >, std::basic_istringstream< _CharT, _Traits, _Alloc >, and std::basic_stringstream< _CharT, _Traits, _Alloc >. |
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Definition at line 347 of file ios_base.h. |
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Constructor does nothing. Both of the parent classes are initialized with the same streambuf pointer passed to this constructor. |
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Destructor does nothing.
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Fast error checking.
Definition at line 186 of file basic_ios.h. |
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[Re]sets the error state.
Definition at line 39 of file basic_ios.tcc. References std::ios_base::badbit, std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::rdstate(). Referenced by std::basic_ios< char, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< char, _Traits >::setstate(). |
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Definition at line 61 of file basic_ios.tcc. References std::ios_base::_M_callbacks, std::ios_base::_M_word, std::ios_base::_M_word_size, 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(), and std::ios_base::width(). |
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Fast error checking.
Definition at line 165 of file basic_ios.h. |
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Throwing exceptions on errors.
If the error flage is already set when the exceptions mask is added, the exception is immediately thrown. Try running the following under GCC 3.1 or later: #include <iostream> #include <fstream> #include <exception> int main() { std::set_terminate (__gnu_cxx::__verbose_terminate_handler); std::ifstream f ("/etc/motd"); std::cerr << "Setting badbit\n"; f.setstate (std::ios_base::badbit); std::cerr << "Setting exception mask\n"; f.exceptions (std::ios_base::badbit); } Definition at line 232 of file basic_ios.h. |
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Throwing exceptions on errors.
Definition at line 197 of file basic_ios.h. Referenced by std::basic_ios< _CharT, _Traits >::clear(), std::basic_ios< _CharT, _Traits >::copyfmt(), 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::operator>>(), std::basic_istream< _CharT, _Traits >::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 >::sync(), and std::basic_istream< _CharT, _Traits >::unget(). |
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Fast error checking.
Definition at line 176 of file basic_ios.h. Referenced by std::basic_ios< char, _Traits >::operator void *(), std::basic_ios< char, _Traits >::operator!(), std::basic_istream< _CharT, _Traits >::seekg(), std::basic_ostream< _CharT, _Traits >::seekp(), std::basic_istream< _CharT, _Traits >::tellg(), and std::basic_ostream< _CharT, _Traits >::tellp(). |
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Sets a new "empty" character.
Definition at line 348 of file basic_ios.h. |
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Retreives the "empty" character.
Definition at line 328 of file basic_ios.h. Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::basic_ios< char, _Traits >::fill(), std::operator<<(), and std::basic_ostream< _CharT, _Traits >::operator<<(). |
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Setting new format flags all at once.
Definition at line 484 of file ios_base.h. |
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Access to format flags.
Definition at line 474 of file ios_base.h. Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::basic_ostream< _CharT, _Traits >::operator<<(), std::basic_ostream< char >::operator<<(), std::basic_istream< _CharT, _Traits >::sentry::sentry(), and std::basic_ostream< _CharT, _Traits >::sentry::~sentry(). |
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Synchronizing the stream buffer.
rdbuf() is a null pointer, changes nothing.
Otherwise, calls Definition at line 408 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). Referenced by std::flush(). |
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Character counting.
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Extraction into another streambuf.
get (sb,widen('')). |
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Extraction into another streambuf.
If no characters are stored, failbit is set in the stream's error state. Definition at line 621 of file istream.tcc. References std::basic_istream< _CharT, _Traits >::char_type, std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Simple multiple-character extraction.
get (s,n,widen('')). |
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Simple multiple-character extraction.
If no characters are stored, failbit is set in the stream's error state. In any case, a null character is stored into the next location in the array.
Definition at line 579 of file istream.tcc. References std::basic_istream< _CharT, _Traits >::char_type, std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Simple extraction.
Definition at line 545 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Simple extraction.
Definition at line 513 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). Referenced by std::basic_istream< char >::get(), and std::operator>>(). |
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String extraction.
getline (s,n,widen('')). |
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String extraction.
If no characters are extracted, failbit is set. (An empty line of input should therefore not cause failbit to be set.) In any case, a null character is stored in the next location in the array. Definition at line 663 of file istream.tcc. References std::basic_istream< _CharT, _Traits >::char_type, std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). Referenced by std::basic_istream< char >::getline(). |
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Locale access.
imbue(loc) has previously been called, then this function returns loc . Otherwise, it returns a copy of std::locale() , the global C++ locale.
Definition at line 616 of file ios_base.h. Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::operator>>(), and std::ws(). |
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Fast error checking.
Definition at line 155 of file basic_ios.h. Referenced by std::basic_istream< _CharT, _Traits >::sentry::sentry(). |
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Discarding characters.
Definition at line 715 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::max(), std::min(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Moves to a new locale.
ios_base::imbue(loc) , and if a stream buffer is associated with this stream, calls that buffer's pubimbue(loc) .Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/22_locale/howto.html Reimplemented from std::ios_base. Definition at line 135 of file basic_ios.tcc. References std::basic_ios< _CharT, _Traits >::rdbuf(). |
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All setup is performed here. This is called from the public constructor. It is not virtual and cannot be redefined. The second argument, __cache, is used to initialize the standard streams without allocating memory. Definition at line 147 of file basic_ios.tcc. References std::ios_base::badbit, and std::ios_base::goodbit. Referenced by std::basic_fstream< _CharT, _Traits >::basic_fstream(), std::basic_ifstream< _CharT, _Traits >::basic_ifstream(), std::basic_ios< char, _Traits >::basic_ios(), std::basic_istream< char >::basic_istream(), std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream(), std::basic_ofstream< _CharT, _Traits >::basic_ofstream(), std::basic_ostream< char >::basic_ostream(), std::basic_ostringstream< _CharT, _Traits, _Alloc >::basic_ostringstream(), and std::basic_stringstream< _CharT, _Traits, _Alloc >::basic_stringstream(). |
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Definition at line 629 of file ios_base.h. |
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Squeezes characters.
char_type to a character of char , if possible.Returns the result of std::use_facet< ctype<char_type> >(getloc()).narrow(c,dfault) Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/22_locale/howto.html Definition at line 114 of file basic_ios.tcc. Referenced by std::operator>>(). |
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The quick-and-easy status check. This allows you to write constructs such as "if (!a_stream) ..." and "while (a_stream) ..." Definition at line 109 of file basic_ios.h. |
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The quick-and-easy status check. This allows you to write constructs such as "if (!a_stream) ..." and "while (a_stream) ..." Definition at line 113 of file basic_ios.h. |
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Extracting from another streambuf.
If sb is NULL, the stream will set failbit in its error state.
Characters are extracted from sb and inserted into
If the function inserts no characters, failbit is set. Definition at line 127 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 355 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 330 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 305 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 279 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 241 of file ostream.tcc. References std::basic_ostream< _CharT, _Traits >::char_type, std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::fill(), std::ios_base::flags(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 153 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 215 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic inserters.
num_get facet) to perform numeric formatting.
Definition at line 178 of file ostream.tcc. References std::basic_ostream< _CharT, _Traits >::char_type, std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::fill(), std::ios_base::flags(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Interface for manipulators.
Manuipulators such as Definition at line 106 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(). |
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Interface for manipulators.
Manuipulators such as Definition at line 84 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(). |
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Interface for manipulators.
Manuipulators such as Definition at line 62 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(). |
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Extracting into another streambuf.
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:
If the function inserts no characters, failbit is set. Definition at line 482 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 455 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 428 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 401 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 374 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 346 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 319 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 291 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 264 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 237 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 200 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 173 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 136 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Basic arithmetic extractors.
num_get facet) to parse the input data.
Definition at line 109 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Interface for manipulators.
Manuipulators such as Definition at line 100 of file istream.tcc. |
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Interface for manipulators.
Manuipulators such as Definition at line 91 of file istream.tcc. |
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Interface for manipulators.
Manuipulators such as Definition at line 82 of file istream.tcc. |
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Looking ahead in the stream.
good() is false, returns traits::eof() . Otherwise reads but does not extract the next input character.
Definition at line 753 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, and std::basic_ios< _CharT, _Traits >::rdbuf(). |
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Changing flags.
Definition at line 552 of file ios_base.h. |
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Flags access.
Definition at line 544 of file ios_base.h. Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(). |
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Simple insertion.
Definition at line 380 of file ostream.tcc. References std::basic_ostream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). Referenced by std::endl(), and std::ends(). |
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Unextracting a single character.
rdbuf() is not null, calls rdbuf()->sputbackc(c) .
If
Definition at line 842 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Definition at line 640 of file ios_base.h. |
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Changing the underlying buffer.
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 Definition at line 51 of file basic_ios.tcc. References std::basic_ios< _CharT, _Traits >::clear(). |
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Returns the error state of the stream buffer.
Definition at line 125 of file basic_ios.h. Referenced by std::basic_ios< char, _Traits >::bad(), std::basic_ios< _CharT, _Traits >::clear(), std::basic_ios< char, _Traits >::eof(), std::basic_ios< char, _Traits >::fail(), and std::basic_ios< char, _Traits >::good(). |
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Extraction without delimiters.
good() , extracts characters and stores them into s until one of the following happens:
Definition at line 777 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Extraction until the buffer is exhausted, but no more.
rdbuf()->in_avail() , called A here:
The goal is to empty the current buffer, and to not request any more from the external input sequence controlled by the streambuf. Definition at line 806 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::min(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Changing the current read position.
fail() is not true, calls rdbuf()->pubseekoff(off,dir) . If that function fails, sets failbit.
Definition at line 976 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::fail(), std::basic_istream< _CharT, _Traits >::off_type, std::basic_istream< _CharT, _Traits >::pos_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Changing the current read position.
fail() is not true, calls rdbuf()->pubseekpos(pos) . If that function fails, sets failbit.
Definition at line 956 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::fail(), std::basic_istream< _CharT, _Traits >::off_type, std::basic_istream< _CharT, _Traits >::pos_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Changing the current write position.
fail() is not true, calls rdbuf()->pubseekoff(off,dir) . If that function fails, sets failbit.
Definition at line 451 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::fail(), std::basic_ostream< _CharT, _Traits >::off_type, std::basic_ostream< _CharT, _Traits >::pos_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Changing the current write position.
fail() is not true, calls rdbuf()->pubseekpos(pos) . If that function fails, sets failbit.
Definition at line 432 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::fail(), std::basic_ostream< _CharT, _Traits >::off_type, std::basic_ostream< _CharT, _Traits >::pos_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Setting new format flags.
& mask. An example mask is ios_base::adjustfield .
Definition at line 517 of file ios_base.h. |
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Setting new format flags.
Definition at line 500 of file ios_base.h. Referenced by std::boolalpha(), std::dec(), std::fixed(), std::hex(), std::internal(), std::left(), std::oct(), std::right(), std::scientific(), std::showbase(), std::showpoint(), std::showpos(), std::skipws(), std::unitbuf(), and std::uppercase(). |
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Synchronizing the stream buffer.
rdbuf() is a null pointer, returns -1.
Otherwise, calls Otherwise, returns 0.
Definition at line 910 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Interaction with the standard C I/O objects.
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Getting the current read position.
fail() is not false, returns pos_type (-1) to indicate failure. Otherwise returns rdbuf()->pubseekoff(0,cur,in) .
Definition at line 943 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::fail(), std::basic_istream< _CharT, _Traits >::pos_type, and std::basic_ios< _CharT, _Traits >::rdbuf(). |
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Getting the current write position.
fail() is not false, returns pos_type (-1) to indicate failure. Otherwise returns rdbuf()->pubseekoff(0,cur,out) .
Definition at line 421 of file ostream.tcc. References std::basic_ios< _CharT, _Traits >::fail(), std::basic_ostream< _CharT, _Traits >::pos_type, and std::basic_ios< _CharT, _Traits >::rdbuf(). |
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Ties this stream to an output stream.
Definition at line 280 of file basic_ios.h. |
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Fetches the current tied stream.
std::cin is tied to std::cout .
Definition at line 268 of file basic_ios.h. Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), and std::basic_istream< _CharT, _Traits >::sentry::sentry(). |
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Unextracting the previous character.
rdbuf() is not null, calls rdbuf()->sungetc(c) .
If
Definition at line 876 of file istream.tcc. References std::basic_ios< _CharT, _Traits >::exceptions(), std::basic_istream< _CharT, _Traits >::int_type, std::basic_ios< _CharT, _Traits >::rdbuf(), and std::basic_ios< _CharT, _Traits >::setstate(). |
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Clearing format flags.
Definition at line 532 of file ios_base.h. Referenced by std::noboolalpha(), std::noshowbase(), std::noshowpoint(), std::noshowpos(), std::noskipws(), std::nounitbuf(), and std::nouppercase(). |
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Widens characters.
char to a character of char_type .Returns the result of std::use_facet< ctype<char_type> >(getloc()).widen(c) Additional l10n notes are at http://gcc.gnu.org/onlinedocs/libstdc++/22_locale/howto.html Definition at line 124 of file basic_ios.tcc. References std::basic_ios< _CharT, _Traits >::char_type. Referenced by std::endl(), std::basic_ios< char, _Traits >::fill(), and std::operator<<(). |
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Changing flags.
Definition at line 574 of file ios_base.h. |
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Flags access.
Definition at line 566 of file ios_base.h. Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::operator<<(), and std::operator>>(). |
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Character string insertion.
Referenced by std::operator<<(). |
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A mask of left|right|internal. Useful for the 2-arg form of
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Seek to end before each write.
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Open and seek to end immediately after opening.
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Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error from a file).
Definition at line 134 of file ios.cc. Referenced by std::basic_ios< char, _Traits >::bad(), std::basic_ios< _CharT, _Traits >::clear(), std::basic_ios< char, _Traits >::fail(), and std::basic_ios< _CharT, _Traits >::init(). |
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A mask of dec|oct|hex. Useful for the 2-arg form of
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Request a seek relative to the beginning of the stream.
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Perform input and output in binary mode (as opposed to text mode). This is probably not what you think it is; see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#3 and http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more.
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Insert/extract
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Request a seek relative to the current position within the sequence.
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Converts integer input or generates integer output in decimal base.
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Request a seek relative to the current end of the sequence.
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Indicates that an input operation reached the end of an input sequence.
Definition at line 135 of file ios.cc. Referenced by std::basic_ios< char, _Traits >::eof(). |
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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 136 of file ios.cc. Referenced by std::basic_ios< char, _Traits >::fail(). |
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Generate floating-point output in fixed-point notation.
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A mask of scientific|fixed. Useful for the 2-arg form of
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Indicates all is well.
Definition at line 137 of file ios.cc. Referenced by std::basic_ios< _CharT, _Traits >::init(). |
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Converts integer input or generates integer output in hexadecimal base.
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Open for input. Default for
Definition at line 142 of file ios.cc. Referenced by std::basic_istringstream< _CharT, _Traits, _Alloc >::basic_istringstream(). |
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Adds fill characters at a designated internal point in certain generated output, or identical to
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Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.).
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Converts integer input or generates integer output in octal base.
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Open for output. Default for
Definition at line 143 of file ios.cc. Referenced by std::basic_ostringstream< _CharT, _Traits, _Alloc >::basic_ostringstream(). |
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Adds fill characters on the left (initial positions) of certain generated output. (I.e., the thing you print is flush right.).
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Generates floating-point output in scientific notation.
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Generates a prefix indicating the numeric base of generated integer output.
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Generates a decimal-point character unconditionally in generated floating-point output.
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Generates a + sign in non-negative generated numeric output.
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Skips leading white space before certain input operations.
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Open for input. Default for
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Flushes output after each output operation.
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Replaces certain lowercase letters with their uppercase equivalents in generated output.
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