33#ifndef _GLIBXX_STREAMBUF
34#define _GLIBXX_STREAMBUF 1
37#pragma GCC system_header
49namespace std _GLIBCXX_VISIBILITY(default)
51_GLIBCXX_BEGIN_NAMESPACE_VERSION
53#define _IsUnused __attribute__ ((__unused__))
55 template<
typename _CharT,
typename _Traits>
57 __copy_streambufs_eof(basic_streambuf<_CharT, _Traits>*,
58 basic_streambuf<_CharT, _Traits>*,
bool&);
125 template<
typename _CharT,
typename _Traits>
156 template<
bool _IsMove,
typename _CharT2>
157 friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
162 template<
typename _CharT2>
163 friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
168 template<
typename _CharT2,
typename _Distance>
169 friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
175 template<
typename _CharT2,
typename _Traits2,
typename _Alloc>
180 template<
typename _CharT2,
typename _Traits2,
typename _Alloc>
249 {
return this->
setbuf(__s, __n); }
262 {
return this->
seekoff(__off, __way, __mode); }
274 {
return this->
seekpos(__sp, __mode); }
296 return __ret ? __ret : this->
showmanyc();
309 int_type __ret = traits_type::eof();
310 if (__builtin_expect(!traits_type::eq_int_type(this->
sbumpc(),
312 __ret = this->
sgetc();
328 if (__builtin_expect(this->
gptr() < this->
egptr(),
true))
330 __ret = traits_type::to_int_type(*this->
gptr());
334 __ret = this->
uflow();
350 if (__builtin_expect(this->
gptr() < this->
egptr(),
true))
351 __ret = traits_type::to_int_type(*this->
gptr());
367 {
return this->
xsgetn(__s, __n); }
384 const bool __testpos = this->
eback() < this->
gptr();
385 if (__builtin_expect(!__testpos ||
386 !traits_type::eq(__c, this->
gptr()[-1]),
false))
387 __ret = this->
pbackfail(traits_type::to_int_type(__c));
391 __ret = traits_type::to_int_type(*this->
gptr());
409 if (__builtin_expect(this->
eback() < this->
gptr(),
true))
412 __ret = traits_type::to_int_type(*this->
gptr());
436 if (__builtin_expect(this->
pptr() < this->
epptr(),
true))
440 __ret = traits_type::to_int_type(__c);
443 __ret = this->
overflow(traits_type::to_int_type(__c));
460 {
return this->
xsputn(__s, __n); }
697 {
return traits_type::eof(); }
711 int_type __ret = traits_type::eof();
712 const bool __testeof = traits_type::eq_int_type(this->
underflow(),
716 __ret = traits_type::to_int_type(*this->
gptr());
734 {
return traits_type::eof(); }
778 {
return traits_type::eof(); }
780#if _GLIBCXX_USE_DEPRECATED && __cplusplus <= 201402L
791 _GLIBCXX_DEPRECATED_SUGGEST(
"std::basic_streambuf::sbumpc")
809#if __cplusplus < 201103L
819#if __cplusplus >= 201103L
834#if __cplusplus >= 201103L
835 template<
typename _CharT,
typename _Traits>
839 template<
typename _CharT,
typename _Traits>
842 operator=(
const basic_streambuf&) =
default;
848 __copy_streambufs_eof(basic_streambuf<char>* __sbin,
849 basic_streambuf<char>* __sbout,
bool& __ineof);
850#ifdef _GLIBCXX_USE_WCHAR_T
853 __copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin,
854 basic_streambuf<wchar_t>* __sbout,
bool& __ineof);
859_GLIBCXX_END_NAMESPACE_VERSION
ISO C++ entities toplevel namespace is std.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
Template class basic_ios, virtual base class for all stream classes.
The actual work of input and output (interface).
virtual pos_type seekpos(pos_type, ios_base::openmode=ios_base::in|ios_base::out)
Alters the stream positions.
char_type * _M_in_beg
Start of get area.
locale getloc() const
Locale access.
traits_type::int_type int_type
char_type * epptr() const
Access to the put area.
basic_streambuf< char_type, traits_type > __streambuf_type
This is a non-standard type.
virtual int_type overflow(int_type __c=traits_type::eof())
Consumes data from the buffer; writes to the controlled sequence.
virtual streamsize xsputn(const char_type *__s, streamsize __n)
Multiple character insertion.
pos_type pubseekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream position.
char_type * pptr() const
Access to the put area.
void setg(char_type *__gbeg, char_type *__gnext, char_type *__gend)
Setting the three read area pointers.
char_type * eback() const
Access to the get area.
virtual int sync()
Synchronizes the buffer arrays with the controlled sequences.
virtual int_type uflow()
Fetches more data from the controlled sequence.
char_type * egptr() const
Access to the get area.
char_type * gptr() const
Access to the get area.
traits_type::pos_type pos_type
streamsize sputn(const char_type *__s, streamsize __n)
Entry point for all single-character output functions.
virtual streamsize xsgetn(char_type *__s, streamsize __n)
Multiple character extraction.
char_type * _M_out_beg
Start of put area.
int_type snextc()
Getting the next character.
virtual void imbue(const locale &__loc)
Changes translations.
int_type sbumpc()
Getting the next character.
char_type * _M_in_cur
Current read area.
streamsize sgetn(char_type *__s, streamsize __n)
Entry point for xsgetn.
basic_streambuf * pubsetbuf(char_type *__s, streamsize __n)
Entry points for derived buffer functions.
virtual basic_streambuf< char_type, _Traits > * setbuf(char_type *, streamsize)
Manipulates the buffer.
char_type * _M_out_cur
Current put area.
virtual streamsize showmanyc()
Investigating the data available.
int_type sungetc()
Moving backwards in the input stream.
virtual int_type pbackfail(int_type __c=traits_type::eof())
Tries to back up the input sequence.
locale pubimbue(const locale &__loc)
Entry point for imbue().
streamsize in_avail()
Looking ahead into the stream.
void gbump(int __n)
Moving the read position.
virtual int_type underflow()
Fetches more data from the controlled sequence.
void setp(char_type *__pbeg, char_type *__pend)
Setting the three write area pointers.
pos_type pubseekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream position.
void pbump(int __n)
Moving the write position.
int_type sgetc()
Getting the next character.
int pubsync()
Calls virtual sync function.
virtual pos_type seekoff(off_type, ios_base::seekdir, ios_base::openmode=ios_base::in|ios_base::out)
Alters the stream positions.
char_type * pbase() const
Access to the put area.
char_type * _M_in_end
End of get area.
virtual ~basic_streambuf()
Destructor deallocates no buffer space.
traits_type::off_type off_type
int_type sputbackc(char_type __c)
Pushing characters back into the input stream.
locale _M_buf_locale
Current locale setting.
char_type * _M_out_end
End of put area.
int_type sputc(char_type __c)
Entry point for all single-character output functions.
basic_streambuf()
Base constructor.
Template class basic_istream.
Template class basic_ostream.
Provides input iterator semantics for streambufs.
Provides output iterator semantics for streambufs.
Managing sequences of characters and character-like objects.
static const openmode in
Open for input. Default for ifstream and fstream.
static const openmode out
Open for output. Default for ofstream and fstream.
Container class for localization functionality.