basic_streambuf< _CharT, _Traits > Class Template Reference

#include <_iosfwd.h>

Inheritance diagram for basic_streambuf< _CharT, _Traits >:

Collaboration diagram for basic_streambuf< _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

Public Member Functions
virtual	~basic_streambuf ()
char_type *	_M_eback () const
char_type *	_M_gptr () const
char_type *	_M_egptr () const
void	_M_gbump (int __n)
void	_M_setg (char_type *__gbegin, char_type *__gnext, char_type *__gend)
basic_streambuf< _CharT, _Traits > *	pubsetbuf (char_type *__s, streamsize __n)
pos_type	pubseekoff (off_type __offset, ios_base::seekdir __way, ios_base::openmode __mod=ios_base::in|ios_base::out)
pos_type	pubseekpos (pos_type __sp, ios_base::openmode __mod=ios_base::in|ios_base::out)
int	pubsync ()
int_type	sputc (char_type __c)
streamsize	sputn (const char_type *__s, streamsize __n)
streamsize	_M_sputnc (char_type __c, streamsize __n)
streamsize	in_avail ()
int_type	snextc ()
int_type	sbumpc ()
int_type	sgetc ()
streamsize	sgetn (char_type *__s, streamsize __n)
int_type	sputbackc (char_type __c)
int_type	sungetc ()
locale	pubimbue (const locale &)
locale	getloc () const
void	stossc ()

Protected Member Functions
	basic_streambuf ()
char_type *	eback () const
char_type *	gptr () const
char_type *	egptr () const
void	gbump (int __n)
void	setg (char_type *__gbegin, char_type *__gnext, char_type *__gend)
char_type *	pbase () const
char_type *	pptr () const
char_type *	epptr () const
void	pbump (int __n)
void	setp (char_type *__pbegin, char_type *__pend)
virtual basic_streambuf< _CharT, _Traits > *	setbuf (char_type *, streamsize)
virtual pos_type	seekoff (off_type, ios_base::seekdir, ios_base::openmode=ios_base::in|ios_base::out)
virtual pos_type	seekpos (pos_type, ios_base::openmode=ios_base::in|ios_base::out)
virtual int	sync ()
virtual streamsize	showmanyc ()
virtual streamsize	xsgetn (char_type *__s, streamsize __n)
virtual int_type	underflow ()
virtual int_type	uflow ()
virtual int_type	pbackfail (int_type=traits_type::eof())
virtual streamsize	xsputn (const char_type *__s, streamsize __n)
virtual streamsize	_M_xsputnc (char_type __c, streamsize __n)
virtual int_type	overflow (int_type=traits_type::eof())
virtual void	imbue (const locale &)

Private Member Functions
int_type	_M_snextc_aux ()

Private Attributes
char_type *	_M_gbegin
char_type *	_M_gnext
char_type *	_M_gend
char_type *	_M_pbegin
char_type *	_M_pnext
char_type *	_M_pend
locale	_M_locale

Friends
class	basic_istream< _CharT, _Traits >
class	basic_ostream< _CharT, _Traits >

Detailed Description

template<class _CharT, class _Traits>
class basic_streambuf< _CharT, _Traits >

Definition at line 33 of file _iosfwd.h.

Member Typedef Documentation

char_type

template<class _CharT, class _Traits>

typedef _CharT basic_streambuf< _CharT, _Traits >::char_type

Definition at line 53 of file _streambuf.h.

int_type

template<class _CharT, class _Traits>

typedef _Traits::int_type basic_streambuf< _CharT, _Traits >::int_type

Definition at line 54 of file _streambuf.h.

off_type

template<class _CharT, class _Traits>

typedef _Traits::off_type basic_streambuf< _CharT, _Traits >::off_type

Definition at line 56 of file _streambuf.h.

pos_type

template<class _CharT, class _Traits>

typedef _Traits::pos_type basic_streambuf< _CharT, _Traits >::pos_type

Definition at line 55 of file _streambuf.h.

traits_type

template<class _CharT, class _Traits>

typedef _Traits basic_streambuf< _CharT, _Traits >::traits_type

Definition at line 57 of file _streambuf.h.

Constructor & Destructor Documentation

~basic_streambuf()

template<class _CharT , class _Traits >

basic_streambuf< _CharT, _Traits >::~basic_streambuf ( )

virtual

Definition at line 40 of file _streambuf.c.

{}

basic_streambuf()

template<class _CharT , class _Traits >

_STLP_BEGIN_NAMESPACE basic_streambuf< _CharT, _Traits >::basic_streambuf ( )

protected

Definition at line 31 of file _streambuf.c.

  : _M_gbegin(0), _M_gnext(0), _M_gend(0),
    _M_pbegin(0), _M_pnext(0), _M_pend(0),
    _M_locale() {
  //  _M_lock._M_initialize();
}

Member Function Documentation

_M_eback()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_eback ( ) const

inline

Definition at line 102 of file _streambuf.h.

{ return eback(); }

_M_egptr()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_egptr ( ) const

inline

Definition at line 104 of file _streambuf.h.

{ return egptr(); }

Referenced by __copy_buffered(), __read_buffered(), and _M_ignore_buffered().

_M_gbump()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::_M_gbump ( int  __n )

inline

Definition at line 105 of file _streambuf.h.

{ gbump(__n); }

Referenced by __copy_buffered(), __read_buffered(), and _M_ignore_buffered().

_M_gptr()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_gptr ( ) const

inline

Definition at line 103 of file _streambuf.h.

{ return gptr(); }

Referenced by __copy_buffered(), __read_buffered(), and _M_ignore_buffered().

_M_setg()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::_M_setg ( char_type *  __gbegin, char_type *  __gnext, char_type *  __gend  )

inline

Definition at line 106 of file _streambuf.h.

  { this->setg(__gbegin, __gnext, __gend); }

_M_snextc_aux()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::int_type basic_streambuf< _CharT, _Traits >::_M_snextc_aux ( )

private

Definition at line 137 of file _streambuf.c.

{
  int_type __eof = _Traits::eof();
  if (_M_gend == _M_gnext)
    return _Traits::eq_int_type(this->uflow(), __eof) ? __eof : this->sgetc();
  else {
    _M_gnext = _M_gend;
    return this->underflow();
  }
}

Referenced by basic_streambuf< char, char_traits< char > >::snextc().

_M_sputnc()

template<class _CharT, class _Traits>

streamsize basic_streambuf< _CharT, _Traits >::_M_sputnc ( char_type  __c, streamsize  __n  )

inline

Definition at line 208 of file _streambuf.h.

  { return this->_M_xsputnc(__c, __n); }

_M_xsputnc()

template<class _CharT , class _Traits >

streamsize basic_streambuf< _CharT, _Traits >::_M_xsputnc ( char_type  __c, streamsize  __n  )

protectedvirtual

Reimplemented in basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 112 of file _streambuf.c.

{
  streamsize __result = 0;
  const int_type __eof = _Traits::eof();

  while (__result < __n) {
    if (_M_pnext < _M_pend) {
      size_t __chunk = (min) (__STATIC_CAST(size_t,_M_pend - _M_pnext),
                           __STATIC_CAST(size_t,__n - __result));
      _Traits::assign(_M_pnext, __chunk, __c);
      __result += __chunk;
      _M_pnext += __chunk;
    }

    else if (!_Traits::eq_int_type(this->overflow(_Traits::to_int_type(__c)),
                                   __eof))
      ++__result;
    else
      break;
  }
  return __result;
}

Referenced by basic_streambuf< char, char_traits< char > >::_M_sputnc().

eback()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::eback ( ) const

inlineprotected

Definition at line 87 of file _streambuf.h.

{ return _M_gbegin; } // Beginning

Referenced by basic_streambuf< char, char_traits< char > >::_M_eback().

egptr()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::egptr ( ) const

inlineprotected

Definition at line 89 of file _streambuf.h.

{ return _M_gend; }   // End

Referenced by basic_ostream< char, char_traits< char > >::_M_copy_buffered(), _Underflow< _CharT, _Traits >::_M_doit(), basic_streambuf< char, char_traits< char > >::_M_egptr(), basic_istream< char, char_traits< char > >::_M_formatted_get(), basic_istream< char, char_traits< char > >::_M_skip_whitespace(), basic_istream< char, char_traits< char > >::get(), basic_istream< char, char_traits< char > >::getline(), basic_istream< char, char_traits< char > >::ignore(), basic_ostream< char, char_traits< char > >::operator<<(), basic_istream< char, char_traits< char > >::operator>>(), basic_istream< char, char_traits< char > >::read(), and basic_istream< char, char_traits< char > >::readsome().

epptr()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::epptr ( ) const

inlineprotected

Definition at line 113 of file _streambuf.h.

{ return _M_pend; }   // End

gbump()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::gbump ( int  __n )

inlineprotected

Definition at line 91 of file _streambuf.h.

{ _M_gnext += __n; }

Referenced by basic_ostream< char, char_traits< char > >::_M_copy_buffered(), and basic_streambuf< char, char_traits< char > >::_M_gbump().

getloc()

template<class _CharT, class _Traits>

locale basic_streambuf< _CharT, _Traits >::getloc ( ) const

inline

Definition at line 263 of file _streambuf.h.

{ return _M_locale; }

gptr()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::gptr ( ) const

inlineprotected

Definition at line 88 of file _streambuf.h.

{ return _M_gnext; }  // Current position

Referenced by basic_ostream< char, char_traits< char > >::_M_copy_buffered(), _Underflow< _CharT, _Traits >::_M_doit(), basic_istream< char, char_traits< char > >::_M_formatted_get(), basic_streambuf< char, char_traits< char > >::_M_gptr(), basic_istream< char, char_traits< char > >::_M_skip_whitespace(), basic_istream< char, char_traits< char > >::get(), basic_istream< char, char_traits< char > >::getline(), basic_istream< char, char_traits< char > >::ignore(), basic_ostream< char, char_traits< char > >::operator<<(), basic_istream< char, char_traits< char > >::operator>>(), basic_istream< char, char_traits< char > >::read(), and basic_istream< char, char_traits< char > >::readsome().

imbue()

template<class _CharT , class _Traits >

void basic_streambuf< _CharT, _Traits >::imbue ( const locale &  )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, and basic_filebuf< char, char_traits< char > >.

Definition at line 180 of file _streambuf.c.

{}

in_avail()

template<class _CharT, class _Traits>

streamsize basic_streambuf< _CharT, _Traits >::in_avail ( )

inline

Definition at line 215 of file _streambuf.h.

                        {
    return (_M_gnext < _M_gend) ? (_M_gend - _M_gnext) : this->showmanyc();
  }

Referenced by basic_istream< char, char_traits< char > >::readsome().

overflow()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::int_type basic_streambuf< _CharT, _Traits >::overflow ( int_type  = traits_type::eof() )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, and basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 156 of file _streambuf.c.

                                                   {
  return _Traits::eof();
}

Referenced by basic_streambuf< char, char_traits< char > >::sputc().

pbackfail()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::int_type basic_streambuf< _CharT, _Traits >::pbackfail ( int_type  = traits_type::eof() )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, and basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 150 of file _streambuf.c.

                                                    {
 return _Traits::eof();
}

Referenced by basic_streambuf< char, char_traits< char > >::sputbackc(), and basic_streambuf< char, char_traits< char > >::sungetc().

pbase()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::pbase ( ) const

inlineprotected

Definition at line 111 of file _streambuf.h.

{ return _M_pbegin; } // Beginning

pbump()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::pbump ( int  __n )

inlineprotected

Definition at line 115 of file _streambuf.h.

{ _M_pnext += __n; }

pptr()

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::pptr ( ) const

inlineprotected

Definition at line 112 of file _streambuf.h.

{ return _M_pnext; }  // Current position

pubimbue()

template<class _CharT , class _Traits >

locale basic_streambuf< _CharT, _Traits >::pubimbue

(

const locale &

__loc

)

Definition at line 45 of file _streambuf.c.

                                                              {
  this->imbue(__loc);
  locale __tmp = _M_locale;
  _M_locale = __loc;
  return __tmp;
}

pubseekoff()

template<class _CharT, class _Traits>

pos_type basic_streambuf< _CharT, _Traits >::pubseekoff ( off_type  __offset, ios_base::seekdir  __way, ios_base::openmode  __mod = ios_base::in | ios_base::out  )

inline

Definition at line 145 of file _streambuf.h.

  { return this->seekoff(__offset, __way, __mod); }

Referenced by basic_istream< char, char_traits< char > >::seekg(), and basic_istream< char, char_traits< char > >::tellg().

pubseekpos()

template<class _CharT, class _Traits>

pos_type basic_streambuf< _CharT, _Traits >::pubseekpos ( pos_type  __sp, ios_base::openmode  __mod = ios_base::in | ios_base::out  )

inline

Definition at line 149 of file _streambuf.h.

  { return this->seekpos(__sp, __mod); }

Referenced by basic_istream< char, char_traits< char > >::seekg().

pubsetbuf()

template<class _CharT, class _Traits>

basic_streambuf<_CharT, _Traits>* basic_streambuf< _CharT, _Traits >::pubsetbuf ( char_type *  __s, streamsize  __n  )

inline

Definition at line 142 of file _streambuf.h.

  { return this->setbuf(__s, __n); }

pubsync()

template<class _CharT, class _Traits>

int basic_streambuf< _CharT, _Traits >::pubsync ( )

inline

Definition at line 153 of file _streambuf.h.

{ return this->sync(); }

Referenced by basic_istream< char, char_traits< char > >::sync().

sbumpc()

template<class _CharT, class _Traits>

int_type basic_streambuf< _CharT, _Traits >::sbumpc ( )

inline

Definition at line 227 of file _streambuf.h.

                    {
    return _M_gnext < _M_gend ? _Traits::to_int_type(*_M_gnext++)
      : this->uflow();
  }

Referenced by __copy_unbuffered(), __read_unbuffered(), basic_ostream< char, char_traits< char > >::_M_copy_unbuffered(), _M_ignore_unbuffered(), getline(), operator >>(), istreambuf_iterator< _CharT, _Traits >::operator++(), operator>>(), and basic_streambuf< char, char_traits< char > >::stossc().

seekoff()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::pos_type basic_streambuf< _CharT, _Traits >::seekoff ( off_type  , ios_base::seekdir  , ios_base::openmode  = ios_base::in | ios_base::out  )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, and basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 193 of file _streambuf.c.

{ return pos_type(-1); }

Referenced by basic_streambuf< char, char_traits< char > >::pubseekoff().

seekpos()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::pos_type basic_streambuf< _CharT, _Traits >::seekpos ( pos_type  , ios_base::openmode  = ios_base::in | ios_base::out  )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, and basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 188 of file _streambuf.c.

{ return pos_type(-1); }

Referenced by basic_streambuf< char, char_traits< char > >::pubseekpos().

setbuf()

template<class _CharT , class _Traits >

basic_streambuf< _CharT, _Traits > * basic_streambuf< _CharT, _Traits >::setbuf ( char_type *  , streamsize    )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, basic_stringbuf< _CharT, _Traits, _Alloc >, strstreambuf, and stdio_streambuf_base.

Definition at line 199 of file _streambuf.c.

{ return this; }

Referenced by basic_streambuf< char, char_traits< char > >::pubsetbuf().

setg()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::setg ( char_type *  __gbegin, char_type *  __gnext, char_type *  __gend  )

inlineprotected

Definition at line 92 of file _streambuf.h.

                                                                        {
    _M_gbegin = __gbegin;
    _M_gnext  = __gnext;
    _M_gend   = __gend;
  }

Referenced by basic_filebuf< char, char_traits< char > >::_M_do_noconv_input(), basic_filebuf< char, char_traits< char > >::_M_exit_putback_mode(), basic_filebuf< char, char_traits< char > >::_M_seek_return(), and basic_streambuf< char, char_traits< char > >::_M_setg().

setp()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::setp ( char_type *  __pbegin, char_type *  __pend  )

inlineprotected

Definition at line 116 of file _streambuf.h.

                                                    {
    _M_pbegin = __pbegin;
    _M_pnext  = __pbegin;
    _M_pend   = __pend;
  }

Referenced by basic_filebuf< char, char_traits< char > >::_M_seek_return().

sgetc()

template<class _CharT, class _Traits>

int_type basic_streambuf< _CharT, _Traits >::sgetc ( )

inline

Definition at line 233 of file _streambuf.h.

                   {
    return _M_gnext < _M_gend ? _Traits::to_int_type(*_M_gnext)
      : this->underflow();
  }

Referenced by __copy_buffered(), __read_buffered(), basic_ostream< char, char_traits< char > >::_M_copy_buffered(), istreambuf_iterator< _CharT, _Traits >::_M_getc(), and _M_ignore_buffered().

sgetn()

template<class _CharT, class _Traits>

streamsize basic_streambuf< _CharT, _Traits >::sgetn ( char_type *  __s, streamsize  __n  )

inline

Definition at line 238 of file _streambuf.h.

  { return this->xsgetn(__s, __n); }

showmanyc()

template<class _CharT , class _Traits >

streamsize basic_streambuf< _CharT, _Traits >::showmanyc ( )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, stdio_ostreambuf, and stdio_istreambuf.

Definition at line 175 of file _streambuf.c.

{ return 0; }

Referenced by basic_streambuf< char, char_traits< char > >::in_avail().

snextc()

template<class _CharT, class _Traits>

int_type basic_streambuf< _CharT, _Traits >::snextc ( )

inline

Definition at line 220 of file _streambuf.h.

                    {
  return ( _M_gend - _M_gnext > 1 ?
             _Traits::to_int_type(*++_M_gnext) :
             this->_M_snextc_aux());
  }

sputbackc()

template<class _CharT, class _Traits>

int_type basic_streambuf< _CharT, _Traits >::sputbackc ( char_type  __c )

inline

Definition at line 241 of file _streambuf.h.

                                    {
    return ((_M_gbegin < _M_gnext) && _Traits::eq(__c, *(_M_gnext - 1)))
      ? _Traits::to_int_type(*--_M_gnext)
      : this->pbackfail(_Traits::to_int_type(__c));
  }

Referenced by __pushback(), _M_ignore_unbuffered(), operator >>(), operator>>(), basic_istream< char, char_traits< char > >::putback(), and _SPutBackC< _CharT, _Traits >::~_SPutBackC().

sputc()

template<class _CharT, class _Traits>

int_type basic_streambuf< _CharT, _Traits >::sputc ( char_type  __c )

inline

Definition at line 198 of file _streambuf.h.

                                {
    return ((_M_pnext < _M_pend) ? _Traits::to_int_type(*_M_pnext++ = __c)
      : this->overflow(_Traits::to_int_type(__c)));
  }

Referenced by __copy_unbuffered(), __stlp_string_fill(), basic_ostream< char, char_traits< char > >::_M_copy_unbuffered(), basic_ostream< char, char_traits< char > >::_M_put_widen_aux(), and ostreambuf_iterator< _CharT, _Traits >::operator=().

sputn()

template<class _CharT, class _Traits>

streamsize basic_streambuf< _CharT, _Traits >::sputn ( const char_type *  __s, streamsize  __n  )

inline

Definition at line 204 of file _streambuf.h.

  { return this->xsputn(__s, __n); }

Referenced by __copy_buffered(), basic_ostream< char, char_traits< char > >::_M_copy_buffered(), and operator<<().

stossc()

template<class _CharT, class _Traits>

void basic_streambuf< _CharT, _Traits >::stossc ( )

inline

Definition at line 266 of file _streambuf.h.

{ this->sbumpc(); }

sungetc()

template<class _CharT, class _Traits>

int_type basic_streambuf< _CharT, _Traits >::sungetc ( )

inline

Definition at line 247 of file _streambuf.h.

                     {
    return (_M_gbegin < _M_gnext)
      ? _Traits::to_int_type(*--_M_gnext)
      : this->pbackfail();
  }

Referenced by basic_istream< char, char_traits< char > >::unget().

sync()

template<class _CharT , class _Traits >

int basic_streambuf< _CharT, _Traits >::sync ( )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, and stdio_streambuf_base.

Definition at line 184 of file _streambuf.c.

{ return 0; }

Referenced by basic_streambuf< char, char_traits< char > >::pubsync().

uflow()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::int_type basic_streambuf< _CharT, _Traits >::uflow ( )

protectedvirtual

Reimplemented in stdio_istreambuf, and basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 162 of file _streambuf.c.

                                        {
    return ( _Traits::eq_int_type(this->underflow(),_Traits::eof()) ?
             _Traits::eof() :
             _Traits::to_int_type(*_M_gnext++));
}

Referenced by basic_streambuf< char, char_traits< char > >::sbumpc().

underflow()

template<class _CharT , class _Traits >

_STLP_TYPENAME_ON_RETURN_TYPE basic_streambuf< _CharT, _Traits >::int_type basic_streambuf< _CharT, _Traits >::underflow ( )

protectedvirtual

Reimplemented in basic_filebuf< _CharT, _Traits >, basic_filebuf< char, char_traits< char > >, stdio_istreambuf, basic_stringbuf< _CharT, _Traits, _Alloc >, and strstreambuf.

Definition at line 170 of file _streambuf.c.

{ return _Traits::eof(); }

Referenced by basic_streambuf< char, char_traits< char > >::sgetc().

xsgetn()

template<class _CharT , class _Traits >

streamsize basic_streambuf< _CharT, _Traits >::xsgetn ( char_type *  __s, streamsize  __n  )

protectedvirtual

Definition at line 54 of file _streambuf.c.

                                                                    {
  streamsize __result = 0;
  const int_type __eof = _Traits::eof();

  while (__result < __n) {
    if (_M_gnext < _M_gend) {
      size_t __chunk = (min) (__STATIC_CAST(size_t,_M_gend - _M_gnext),
                              __STATIC_CAST(size_t,__n - __result));
      _Traits::copy(__s, _M_gnext, __chunk);
      __result += __chunk;
      __s += __chunk;
      _M_gnext += __chunk;
    }
    else {
      int_type __c = this->sbumpc();
      if (!_Traits::eq_int_type(__c, __eof)) {
        *__s = _Traits::to_char_type(__c);
        ++__result;
        ++__s;
      }
      else
        break;
    }
  }

  return __result;
}

Referenced by basic_streambuf< char, char_traits< char > >::sgetn().

xsputn()

template<class _CharT , class _Traits >

streamsize basic_streambuf< _CharT, _Traits >::xsputn ( const char_type *  __s, streamsize  __n  )

protectedvirtual

Reimplemented in basic_stringbuf< _CharT, _Traits, _Alloc >.

Definition at line 84 of file _streambuf.c.

{
  streamsize __result = 0;
  const int_type __eof = _Traits::eof();

  while (__result < __n) {
    if (_M_pnext < _M_pend) {
      size_t __chunk = (min) (__STATIC_CAST(size_t,_M_pend - _M_pnext),
                           __STATIC_CAST(size_t,__n - __result));
      _Traits::copy(_M_pnext, __s, __chunk);
      __result += __chunk;
      __s += __chunk;
      _M_pnext += __chunk;
    }

    else if (!_Traits::eq_int_type(this->overflow(_Traits::to_int_type(*__s)),
                                   __eof)) {
      ++__result;
      ++__s;
    }
    else
      break;
  }
  return __result;
}

Referenced by basic_streambuf< char, char_traits< char > >::sputn().

Friends And Related Function Documentation

basic_istream< _CharT, _Traits >

template<class _CharT, class _Traits>

friend class basic_istream< _CharT, _Traits >

friend

Definition at line 49 of file _streambuf.h.

basic_ostream< _CharT, _Traits >

template<class _CharT, class _Traits>

friend class basic_ostream< _CharT, _Traits >

friend

Definition at line 50 of file _streambuf.h.

Member Data Documentation

_M_gbegin

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_gbegin

private

Definition at line 61 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::eback(), basic_streambuf< char, char_traits< char > >::setg(), basic_streambuf< char, char_traits< char > >::sputbackc(), and basic_streambuf< char, char_traits< char > >::sungetc().

_M_gend

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_gend

private

Definition at line 63 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::egptr(), basic_streambuf< char, char_traits< char > >::in_avail(), basic_streambuf< char, char_traits< char > >::sbumpc(), basic_streambuf< char, char_traits< char > >::setg(), basic_streambuf< char, char_traits< char > >::sgetc(), and basic_streambuf< char, char_traits< char > >::snextc().

_M_gnext

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_gnext

private

Definition at line 62 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::gbump(), basic_streambuf< char, char_traits< char > >::gptr(), basic_streambuf< char, char_traits< char > >::in_avail(), basic_streambuf< char, char_traits< char > >::sbumpc(), basic_streambuf< char, char_traits< char > >::setg(), basic_streambuf< char, char_traits< char > >::sgetc(), basic_streambuf< char, char_traits< char > >::snextc(), basic_streambuf< char, char_traits< char > >::sputbackc(), and basic_streambuf< char, char_traits< char > >::sungetc().

_M_locale

template<class _CharT, class _Traits>

locale basic_streambuf< _CharT, _Traits >::_M_locale

private

Definition at line 69 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::getloc().

_M_pbegin

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_pbegin

private

Definition at line 65 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::pbase(), and basic_streambuf< char, char_traits< char > >::setp().

_M_pend

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_pend

private

Definition at line 67 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::epptr(), basic_streambuf< char, char_traits< char > >::setp(), and basic_streambuf< char, char_traits< char > >::sputc().

_M_pnext

template<class _CharT, class _Traits>

char_type* basic_streambuf< _CharT, _Traits >::_M_pnext

private

Definition at line 66 of file _streambuf.h.

Referenced by basic_streambuf< char, char_traits< char > >::pbump(), basic_streambuf< char, char_traits< char > >::pptr(), basic_streambuf< char, char_traits< char > >::setp(), and basic_streambuf< char, char_traits< char > >::sputc().

---

The documentation for this class was generated from the following files:

• sdk/include/c++/stlport/stl/_iosfwd.h
• sdk/include/c++/stlport/stl/_streambuf.h
• sdk/include/c++/stlport/stl/_streambuf.c