Provides a layer of compatibility for C/POSIX. More...
This GNU extension provides extensions for working with standard C FILE*'s and POSIX file descriptors. It must be instantiated by the user with the type of character used in the file stream, e.g., stdio_filebuf<char>.
Definition at line 52 of file stdio_filebuf.h.
typedef basic_streambuf<char_type, traits_type> __streambuf_type [inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Reimplemented from basic_streambuf< _CharT, _Traits >.
typedef _CharT char_type |
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 basic_filebuf< _CharT, _Traits >.
Definition at line 56 of file stdio_filebuf.h.
typedef traits_type::int_type int_type |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Reimplemented from basic_filebuf< _CharT, _Traits >.
Definition at line 58 of file stdio_filebuf.h.
typedef traits_type::off_type off_type |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Reimplemented from basic_filebuf< _CharT, _Traits >.
Definition at line 60 of file stdio_filebuf.h.
typedef traits_type::pos_type pos_type |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Reimplemented from basic_filebuf< _CharT, _Traits >.
Definition at line 59 of file stdio_filebuf.h.
typedef _Traits traits_type |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Reimplemented from basic_filebuf< _CharT, _Traits >.
Definition at line 57 of file stdio_filebuf.h.
stdio_filebuf | ( | ) | [inline] |
deferred initialization
Definition at line 67 of file stdio_filebuf.h.
stdio_filebuf | ( | int | __fd, | |
std::ios_base::openmode | __mode, | |||
size_t | __size = static_cast<size_t>(BUFSIZ) | |||
) | [inline] |
fd | An open file descriptor. | |
mode | Same meaning as in a standard filebuf. | |
size | Optimal or preferred size of internal buffer, in chars. |
This constructor associates a file stream buffer with an open POSIX file descriptor. The file descriptor will be automatically closed when the stdio_filebuf is closed/destroyed.
Definition at line 129 of file stdio_filebuf.h.
References basic_filebuf< _CharT, _Traits >::is_open().
stdio_filebuf | ( | std::__c_file * | __f, | |
std::ios_base::openmode | __mode, | |||
size_t | __size = static_cast<size_t>(BUFSIZ) | |||
) | [inline] |
f | An open FILE* . | |
mode | Same meaning as in a standard filebuf. | |
size | Optimal or preferred size of internal buffer, in chars. Defaults to system's BUFSIZ . |
This constructor associates a file stream buffer with an open C FILE*
. The FILE*
will not be automatically closed when the stdio_filebuf is closed/destroyed.
Definition at line 145 of file stdio_filebuf.h.
References basic_filebuf< _CharT, _Traits >::is_open().
~stdio_filebuf | ( | ) | [inline, virtual] |
Closes the external data stream if the file descriptor constructor was used.
Definition at line 124 of file stdio_filebuf.h.
basic_filebuf< _CharT, _Traits >::__filebuf_type * close | ( | ) | throw () [inline, inherited] |
Closes the currently associated file.
this
on success, NULL on failureIf no file is currently open, this function immediately fails.
If a "put buffer area" exists, overflow(eof)
is called to flush all the characters. The file is then closed.
If any operations fail, this function also fails.
Definition at line 130 of file fstream.tcc.
References basic_filebuf< _CharT, _Traits >::is_open().
Referenced by basic_fstream< _CharT, _Traits >::close(), basic_ofstream< _CharT, _Traits >::close(), basic_ifstream< _CharT, _Traits >::close(), basic_filebuf< _CharT, _Traits >::open(), and basic_filebuf< char_type, traits_type >::~basic_filebuf().
char_type* eback | ( | ) | const [inline, protected, inherited] |
Access to the get area.
These functions are only available to other protected functions, including derived classes.
Definition at line 465 of file streambuf.
Referenced by basic_filebuf< _CharT, _Traits >::imbue(), basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), basic_stringbuf< _CharT, _Traits, _Alloc >::pbackfail(), basic_filebuf< _CharT, _Traits >::pbackfail(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_filebuf< _CharT, _Traits >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_streambuf< char_type, traits_type >::sputbackc(), basic_streambuf< char_type, traits_type >::sungetc(), basic_filebuf< _CharT, _Traits >::underflow(), and basic_filebuf< _CharT, _Traits >::xsgetn().
char_type* egptr | ( | ) | const [inline, protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 471 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::in_avail(), basic_streambuf< char_type, traits_type >::sbumpc(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_filebuf< _CharT, _Traits >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_streambuf< char_type, traits_type >::sgetc(), basic_stringbuf< _CharT, _Traits, _Alloc >::showmanyc(), basic_filebuf< _CharT, _Traits >::showmanyc(), basic_streambuf< char_type, traits_type >::stossc(), basic_stringbuf< _CharT, _Traits, _Alloc >::str(), basic_stringbuf< _CharT, _Traits, _Alloc >::underflow(), basic_filebuf< _CharT, _Traits >::underflow(), basic_streambuf< _CharT, _Traits >::xsgetn(), and basic_filebuf< _CharT, _Traits >::xsgetn().
char_type* epptr | ( | ) | const [inline, protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 518 of file streambuf.
Referenced by basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), basic_streambuf< char_type, traits_type >::sputc(), basic_streambuf< _CharT, _Traits >::xsputn(), and basic_filebuf< _CharT, _Traits >::xsputn().
int fd | ( | ) | [inline] |
Once associated with an external data stream, this function can be used to access the underlying POSIX file descriptor. Note that there is no way for the library to track what you do with the descriptor, so be careful.
Definition at line 110 of file stdio_filebuf.h.
std::__c_file* file | ( | ) | [inline] |
This function can be used to access the underlying "C" file pointer. Note that there is no way for the library to track what you do with the file, so be careful.
Definition at line 120 of file stdio_filebuf.h.
void gbump | ( | int | __n | ) | [inline, protected, inherited] |
Moving the read position.
n | The delta by which to move. |
This just advances the read position without returning any data.
Definition at line 481 of file streambuf.
Referenced by basic_stringbuf< _CharT, _Traits, _Alloc >::pbackfail(), basic_filebuf< _CharT, _Traits >::pbackfail(), basic_streambuf< char_type, traits_type >::sbumpc(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_streambuf< char_type, traits_type >::sputbackc(), basic_streambuf< char_type, traits_type >::stossc(), basic_streambuf< char_type, traits_type >::sungetc(), basic_streambuf< char_type, traits_type >::uflow(), basic_streambuf< _CharT, _Traits >::xsgetn(), and basic_filebuf< _CharT, _Traits >::xsgetn().
locale getloc | ( | ) | const [inline, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 228 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::pubimbue().
char_type* gptr | ( | ) | const [inline, protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 468 of file streambuf.
Referenced by basic_filebuf< _CharT, _Traits >::imbue(), basic_streambuf< char_type, traits_type >::in_avail(), basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), basic_stringbuf< _CharT, _Traits, _Alloc >::pbackfail(), basic_filebuf< _CharT, _Traits >::pbackfail(), basic_streambuf< char_type, traits_type >::sbumpc(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_filebuf< _CharT, _Traits >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_streambuf< char_type, traits_type >::sgetc(), basic_stringbuf< _CharT, _Traits, _Alloc >::showmanyc(), basic_filebuf< _CharT, _Traits >::showmanyc(), basic_streambuf< char_type, traits_type >::sputbackc(), basic_streambuf< char_type, traits_type >::stossc(), basic_streambuf< char_type, traits_type >::sungetc(), basic_streambuf< char_type, traits_type >::uflow(), basic_stringbuf< _CharT, _Traits, _Alloc >::underflow(), basic_filebuf< _CharT, _Traits >::underflow(), basic_streambuf< _CharT, _Traits >::xsgetn(), and basic_filebuf< _CharT, _Traits >::xsgetn().
void imbue | ( | const locale & | ) | [inline, protected, virtual, inherited] |
Changes translations.
loc | A new locale. |
Translations done during I/O which depend on the current locale are changed by this call. The standard adds, Between invocations of this function a class derived from streambuf can safely cache results of calls to locale functions and to members of facets so obtained.
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 837 of file fstream.tcc.
References ios_base::cur, basic_streambuf< _CharT, _Traits >::eback(), basic_streambuf< _CharT, _Traits >::gptr(), basic_filebuf< _CharT, _Traits >::is_open(), and basic_filebuf< _CharT, _Traits >::seekoff().
streamsize in_avail | ( | ) | [inline, inherited] |
Looking ahead into the stream.
If a read position is available, returns the number of characters available for reading before the buffer must be refilled. Otherwise returns the derived showmanyc()
.
bool is_open | ( | ) | const throw () [inline, inherited] |
Returns true if the external file is open.
Definition at line 247 of file fstream.
Referenced by basic_filebuf< _CharT, _Traits >::close(), basic_filebuf< _CharT, _Traits >::imbue(), basic_fstream< _CharT, _Traits >::is_open(), basic_ofstream< _CharT, _Traits >::is_open(), basic_ifstream< _CharT, _Traits >::is_open(), basic_filebuf< _CharT, _Traits >::open(), basic_filebuf< _CharT, _Traits >::seekoff(), basic_filebuf< _CharT, _Traits >::seekpos(), basic_filebuf< _CharT, _Traits >::setbuf(), basic_filebuf< _CharT, _Traits >::showmanyc(), and stdio_filebuf< _CharT, _Traits >::stdio_filebuf().
basic_filebuf< _CharT, _Traits >::__filebuf_type * open | ( | const char * | __s, | |
ios_base::openmode | __mode | |||
) | [inline, inherited] |
Opens an external file.
s | The name of the file. | |
mode | The open mode flags. |
this
on success, NULL on failureIf a file is already open, this function immediately fails. Otherwise it tries to open the file named s using the flags given in mode.
[Table 92 gives the relation between openmode combinations and the equivalent fopen() flags, but the table has not been copied yet.]
Definition at line 96 of file fstream.tcc.
References ios_base::ate, basic_filebuf< _CharT, _Traits >::close(), ios_base::end, basic_filebuf< _CharT, _Traits >::is_open(), and basic_filebuf< _CharT, _Traits >::seekoff().
Referenced by basic_fstream< _CharT, _Traits >::open(), basic_ofstream< _CharT, _Traits >::open(), and basic_ifstream< _CharT, _Traits >::open().
basic_filebuf< _CharT, _Traits >::int_type overflow | ( | int_type | = _Traits::eof() |
) | [inline, protected, virtual, inherited] |
Consumes data from the buffer; writes to the controlled sequence.
c | An additional character to consume. |
Informally, this function is called when the output buffer is full (or does not exist, as buffering need not actually be done). If a buffer exists, it is "consumed", with "some effect" on the controlled sequence. (Typically, the buffer is written out to the sequence verbatim.) In either case, the character c is also written out, if c is not eof()
.
For a formal definiton of this function, see a good text such as Langer & Kreft, or [27.5.2.4.5]/3-7.
A functioning output streambuf can be created by overriding only this function (no buffer area will be used).
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 392 of file fstream.tcc.
References ios_base::out, basic_streambuf< _CharT, _Traits >::pbase(), basic_streambuf< _CharT, _Traits >::pbump(), and basic_streambuf< _CharT, _Traits >::pptr().
Referenced by basic_filebuf< _CharT, _Traits >::sync().
basic_filebuf< _CharT, _Traits >::int_type pbackfail | ( | int_type | = _Traits::eof() |
) | [inline, protected, virtual, inherited] |
Tries to back up the input sequence.
c | The character to be inserted back into the sequence. |
gptr()
, eback()
, and pptr()
are the same as for underflow()
.Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 340 of file fstream.tcc.
References ios_base::cur, basic_streambuf< _CharT, _Traits >::eback(), basic_streambuf< _CharT, _Traits >::gbump(), basic_streambuf< _CharT, _Traits >::gptr(), ios_base::in, basic_filebuf< _CharT, _Traits >::seekoff(), and basic_filebuf< _CharT, _Traits >::underflow().
char_type* pbase | ( | ) | const [inline, protected, inherited] |
Access to the put area.
These functions are only available to other protected functions, including derived classes.
Definition at line 512 of file streambuf.
Referenced by basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), basic_filebuf< _CharT, _Traits >::overflow(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_stringbuf< _CharT, _Traits, _Alloc >::str(), basic_filebuf< _CharT, _Traits >::sync(), and basic_filebuf< _CharT, _Traits >::xsputn().
void pbump | ( | int | __n | ) | [inline, protected, inherited] |
Moving the write position.
n | The delta by which to move. |
This just advances the write position without returning any data.
Definition at line 528 of file streambuf.
Referenced by basic_filebuf< _CharT, _Traits >::overflow(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_streambuf< char_type, traits_type >::sputc(), and basic_streambuf< _CharT, _Traits >::xsputn().
char_type* pptr | ( | ) | const [inline, protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 515 of file streambuf.
Referenced by basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), basic_filebuf< _CharT, _Traits >::overflow(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekoff(), basic_stringbuf< _CharT, _Traits, _Alloc >::seekpos(), basic_streambuf< char_type, traits_type >::sputc(), basic_stringbuf< _CharT, _Traits, _Alloc >::str(), basic_filebuf< _CharT, _Traits >::sync(), basic_streambuf< _CharT, _Traits >::xsputn(), and basic_filebuf< _CharT, _Traits >::xsputn().
locale pubimbue | ( | const locale & | __loc | ) | [inline, inherited] |
pos_type pubseekoff | ( | off_type | __off, | |
ios_base::seekdir | __way, | |||
ios_base::openmode | __mode = ios_base::in | ios_base::out | |||
) | [inline, inherited] |
pos_type pubseekpos | ( | pos_type | __sp, | |
ios_base::openmode | __mode = ios_base::in | ios_base::out | |||
) | [inline, inherited] |
__streambuf_type* pubsetbuf | ( | char_type * | __s, | |
streamsize | __n | |||
) | [inline, inherited] |
int pubsync | ( | ) | [inline, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 255 of file streambuf.
Referenced by basic_istream< _CharT, _Traits >::sync().
int_type sbumpc | ( | ) | [inline, inherited] |
Getting the next character.
If the input read position is available, returns that character and increments the read pointer, otherwise calls and returns uflow()
.
Definition at line 300 of file streambuf.
Referenced by basic_istream< _CharT, _Traits >::getline(), basic_istream< _CharT, _Traits >::ignore(), istreambuf_iterator< _CharT, _Traits >::operator++(), std::operator>>(), and basic_streambuf< char_type, traits_type >::snextc().
basic_filebuf< _CharT, _Traits >::pos_type seekoff | ( | off_type | , | |
ios_base::seekdir | , | |||
ios_base::openmode | = ios_base::in | ios_base::out | |||
) | [inline, protected, virtual, inherited] |
Alters the stream positions.
Each derived class provides its own appropriate behavior.
pos_type
that represents an invalid stream position. Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 668 of file fstream.tcc.
References ios_base::cur, basic_streambuf< _CharT, _Traits >::eback(), basic_streambuf< _CharT, _Traits >::egptr(), basic_streambuf< _CharT, _Traits >::gptr(), and basic_filebuf< _CharT, _Traits >::is_open().
Referenced by basic_filebuf< _CharT, _Traits >::imbue(), basic_filebuf< _CharT, _Traits >::open(), and basic_filebuf< _CharT, _Traits >::pbackfail().
basic_filebuf< _CharT, _Traits >::pos_type seekpos | ( | pos_type | , | |
ios_base::openmode | = ios_base::in | ios_base::out | |||
) | [inline, protected, virtual, inherited] |
Alters the stream positions.
Each derived class provides its own appropriate behavior.
pos_type
that represents an invalid stream position. Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 721 of file fstream.tcc.
References ios_base::beg, and basic_filebuf< _CharT, _Traits >::is_open().
basic_filebuf< _CharT, _Traits >::__streambuf_type * setbuf | ( | char_type * | __s, | |
streamsize | __n | |||
) | [inline, protected, virtual, inherited] |
Manipulates the buffer.
s | Pointer to a buffer area. | |
n | Size of s. |
this
If no file has been opened, and both s and n are zero, then the stream becomes unbuffered. Otherwise, s
is used as a buffer; see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#2 for more.
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 641 of file fstream.tcc.
References basic_filebuf< _CharT, _Traits >::is_open().
int_type sgetc | ( | ) | [inline, inherited] |
Getting the next character.
If the input read position is available, returns that character, otherwise calls and returns underflow()
. Does not move the read position after fetching the character.
Definition at line 322 of file streambuf.
Referenced by basic_istream< _CharT, _Traits >::get(), basic_istream< _CharT, _Traits >::getline(), basic_istream< _CharT, _Traits >::ignore(), sentry::sentry(), and basic_streambuf< char_type, traits_type >::snextc().
streamsize sgetn | ( | char_type * | __s, | |
streamsize | __n | |||
) | [inline, inherited] |
streamsize showmanyc | ( | ) | [inline, protected, virtual, inherited] |
Investigating the data available.
If it returns a positive value, then successive calls to underflow()
will not return traits::eof()
until at least that number of characters have been supplied. If showmanyc()
returns -1, then calls to underflow()
or uflow()
will fail. [27.5.2.4.3]/1
eof()
but that they will return "immediately". Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 165 of file fstream.tcc.
References ios_base::binary, basic_streambuf< _CharT, _Traits >::egptr(), basic_streambuf< _CharT, _Traits >::gptr(), ios_base::in, and basic_filebuf< _CharT, _Traits >::is_open().
int_type snextc | ( | ) | [inline, inherited] |
Getting the next character.
Calls sbumpc()
, and if that function returns traits::eof()
, so does this function. Otherwise, sgetc()
.
Definition at line 282 of file streambuf.
Referenced by basic_istream< _CharT, _Traits >::get(), basic_istream< _CharT, _Traits >::getline(), basic_istream< _CharT, _Traits >::ignore(), and sentry::sentry().
Pushing characters back into the input stream.
c | The character to push back. |
Similar to sungetc(), but c is pushed onto the stream instead of "the previous character". If successful, the next character fetched from the input stream will be c.
Definition at line 355 of file streambuf.
Referenced by std::operator>>(), and basic_istream< _CharT, _Traits >::putback().
Entry point for all single-character output functions.
c | A character to output. |
One of two public output functions.
If a write position is available for the output sequence (i.e., the buffer is not full), stores c in that position, increments the position, and returns traits::to_int_type(c)
. If a write position is not available, returns overflow(c)
.
Definition at line 407 of file streambuf.
Referenced by basic_istream< _CharT, _Traits >::get(), ostreambuf_iterator< _CharT, _Traits >::operator=(), and basic_stringbuf< _CharT, _Traits, _Alloc >::overflow().
streamsize sputn | ( | const char_type * | __s, | |
streamsize | __n | |||
) | [inline, inherited] |
void stossc | ( | ) | [inline, inherited] |
Tosses a character.
Advances the read pointer, ignoring the character that would have been read.
See http://gcc.gnu.org/ml/libstdc++/2002-05/msg00168.html
_GLIBCXX_DEPRECATED
to make this visible; see c++config.h. int_type sungetc | ( | ) | [inline, inherited] |
Moving backwards in the input stream.
If a putback position is available, this function decrements the input pointer and returns that character. Otherwise, calls and returns pbackfail(). The effect is to "unget" the last character "gotten".
Definition at line 380 of file streambuf.
Referenced by basic_istream< _CharT, _Traits >::unget().
int sync | ( | ) | [inline, protected, virtual, inherited] |
Synchronizes the buffer arrays with the controlled sequences.
Each derived class provides its own appropriate behavior, including the definition of "failure".
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 820 of file fstream.tcc.
References basic_filebuf< _CharT, _Traits >::overflow(), basic_streambuf< _CharT, _Traits >::pbase(), and basic_streambuf< _CharT, _Traits >::pptr().
virtual int_type uflow | ( | ) | [inline, protected, virtual, inherited] |
Fetches more data from the controlled sequence.
Informally, this function does the same thing as underflow()
, and in fact is required to call that function. It also returns the new character, like underflow()
does. However, this function also moves the read position forward by one.
Reimplemented in stdio_sync_filebuf< _CharT, _Traits >.
Definition at line 683 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::sbumpc(), basic_streambuf< char_type, traits_type >::stossc(), and basic_streambuf< _CharT, _Traits >::xsgetn().
basic_filebuf< _CharT, _Traits >::int_type underflow | ( | ) | [inline, protected, virtual, inherited] |
Fetches more data from the controlled sequence.
Informally, this function is called when the input buffer is exhausted (or does not exist, as buffering need not actually be done). If a buffer exists, it is "refilled". In either case, the next available character is returned, or traits::eof()
to indicate a null pending sequence.
For a formal definiton of the pending sequence, see a good text such as Langer & Kreft, or [27.5.2.4.3]/7-14.
A functioning input streambuf can be created by overriding only this function (no buffer area will be used). For an example, see http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#6
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 191 of file fstream.tcc.
References std::copy(), basic_streambuf< _CharT, _Traits >::eback(), basic_streambuf< _CharT, _Traits >::egptr(), basic_streambuf< _CharT, _Traits >::gptr(), __codecvt_abstract_base< _InternT, _ExternT, _StateT >::in(), ios_base::in, and std::min().
Referenced by basic_filebuf< _CharT, _Traits >::pbackfail().
streamsize xsgetn | ( | char_type * | __s, | |
streamsize | __n | |||
) | [inline, protected, virtual, inherited] |
Multiple character extraction.
s | A buffer area. | |
n | Maximum number of characters to assign. |
Fills s[0] through s[n-1] with characters from the input sequence, as if by sbumpc()
. Stops when either n characters have been copied, or when traits::eof()
would be copied.
It is expected that derived classes provide a more efficient implementation by overriding this definition.
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 511 of file fstream.tcc.
References std::copy(), basic_streambuf< _CharT, _Traits >::eback(), basic_streambuf< _CharT, _Traits >::egptr(), basic_streambuf< _CharT, _Traits >::gbump(), basic_streambuf< _CharT, _Traits >::gptr(), ios_base::in, and basic_streambuf< char_type, traits_type >::xsgetn().
streamsize xsputn | ( | const char_type * | __s, | |
streamsize | __n | |||
) | [inline, protected, virtual, inherited] |
Multiple character insertion.
s | A buffer area. | |
n | Maximum number of characters to write. |
Writes s[0] through s[n-1] to the output sequence, as if by sputc()
. Stops when either n characters have been copied, or when sputc()
would return traits::eof()
.
It is expected that derived classes provide a more efficient implementation by overriding this definition.
Reimplemented from basic_streambuf< _CharT, _Traits >.
Definition at line 594 of file fstream.tcc.
References basic_streambuf< _CharT, _Traits >::epptr(), std::min(), ios_base::out, basic_streambuf< _CharT, _Traits >::pbase(), basic_streambuf< _CharT, _Traits >::pptr(), and basic_streambuf< char_type, traits_type >::xsputn().
locale _M_buf_locale [protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 194 of file streambuf.
Referenced by basic_filebuf< _CharT, _Traits >::basic_filebuf(), basic_streambuf< char_type, traits_type >::getloc(), and basic_streambuf< char_type, traits_type >::pubimbue().
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 182 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::eback(), and basic_streambuf< char_type, traits_type >::setg().
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 183 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::gbump(), basic_streambuf< char_type, traits_type >::gptr(), and basic_streambuf< char_type, traits_type >::setg().
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 184 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::egptr(), and basic_streambuf< char_type, traits_type >::setg().
char_type* _M_out_beg [protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 185 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::pbase(), and basic_streambuf< char_type, traits_type >::setp().
char_type* _M_out_cur [protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 186 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::pbump(), basic_streambuf< char_type, traits_type >::pptr(), and basic_streambuf< char_type, traits_type >::setp().
char_type* _M_out_end [protected, inherited] |
Locale access.
If pubimbue(loc) has been called, then the most recent loc
is returned. Otherwise the global locale in effect at the time of construction is returned.
Definition at line 187 of file streambuf.
Referenced by basic_streambuf< char_type, traits_type >::epptr(), and basic_streambuf< char_type, traits_type >::setp().