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-// Stream buffer classes -*- C++ -*-
-
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library. This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-// Under Section 7 of GPL version 3, you are granted additional
-// permissions described in the GCC Runtime Library Exception, version
-// 3.1, as published by the Free Software Foundation.
-
-// You should have received a copy of the GNU General Public License and
-// a copy of the GCC Runtime Library Exception along with this program;
-// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-// <http://www.gnu.org/licenses/>.
-
-/** @file streambuf
- * This is a Standard C++ Library header.
- */
-
-//
-// ISO C++ 14882: 27.5 Stream buffers
-//
-
-#ifndef _GLIBXX_STREAMBUF
-#define _GLIBXX_STREAMBUF 1
-
-#pragma GCC system_header
-
-#include <bits/c++config.h>
-#include <iosfwd>
-#include <bits/localefwd.h>
-#include <bits/ios_base.h>
-#include <bits/cpp_type_traits.h>
-#include <ext/type_traits.h>
-
-_GLIBCXX_BEGIN_NAMESPACE(std)
-
- template<typename _CharT, typename _Traits>
- streamsize
- __copy_streambufs_eof(basic_streambuf<_CharT, _Traits>*,
- basic_streambuf<_CharT, _Traits>*, bool&);
-
- /**
- * @brief The actual work of input and output (interface).
- *
- * This is a base class. Derived stream buffers each control a
- * pair of character sequences: one for input, and one for output.
- *
- * Section [27.5.1] of the standard describes the requirements and
- * behavior of stream buffer classes. That section (three paragraphs)
- * is reproduced here, for simplicity and accuracy.
- *
- * -# Stream buffers can impose various constraints on the sequences
- * they control. Some constraints are:
- * - The controlled input sequence can be not readable.
- * - The controlled output sequence can be not writable.
- * - The controlled sequences can be associated with the contents of
- * other representations for character sequences, such as external
- * files.
- * - The controlled sequences can support operations @e directly to or
- * from associated sequences.
- * - The controlled sequences can impose limitations on how the
- * program can read characters from a sequence, write characters to
- * a sequence, put characters back into an input sequence, or alter
- * the stream position.
- * .
- * -# Each sequence is characterized by three pointers which, if non-null,
- * all point into the same @c charT array object. The array object
- * represents, at any moment, a (sub)sequence of characters from the
- * sequence. Operations performed on a sequence alter the values
- * stored in these pointers, perform reads and writes directly to or
- * from associated sequences, and alter "the stream position" and
- * conversion state as needed to maintain this subsequence relationship.
- * The three pointers are:
- * - the <em>beginning pointer</em>, or lowest element address in the
- * array (called @e xbeg here);
- * - the <em>next pointer</em>, or next element address that is a
- * current candidate for reading or writing (called @e xnext here);
- * - the <em>end pointer</em>, or first element address beyond the
- * end of the array (called @e xend here).
- * .
- * -# The following semantic constraints shall always apply for any set
- * of three pointers for a sequence, using the pointer names given
- * immediately above:
- * - If @e xnext is not a null pointer, then @e xbeg and @e xend shall
- * also be non-null pointers into the same @c charT array, as
- * described above; otherwise, @e xbeg and @e xend shall also be null.
- * - If @e xnext is not a null pointer and @e xnext < @e xend for an
- * output sequence, then a <em>write position</em> is available.
- * In this case, @e *xnext shall be assignable as the next element
- * to write (to put, or to store a character value, into the sequence).
- * - If @e xnext is not a null pointer and @e xbeg < @e xnext for an
- * input sequence, then a <em>putback position</em> is available.
- * In this case, @e xnext[-1] shall have a defined value and is the
- * next (preceding) element to store a character that is put back
- * into the input sequence.
- * - If @e xnext is not a null pointer and @e xnext< @e xend for an
- * input sequence, then a <em>read position</em> is available.
- * In this case, @e *xnext shall have a defined value and is the
- * next element to read (to get, or to obtain a character value,
- * from the sequence).
- */
- template<typename _CharT, typename _Traits>
- class basic_streambuf
- {
- public:
- //@{
- /**
- * 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.
- */
- typedef _CharT char_type;
- typedef _Traits traits_type;
- typedef typename traits_type::int_type int_type;
- typedef typename traits_type::pos_type pos_type;
- typedef typename traits_type::off_type off_type;
- //@}
-
- //@{
- /// This is a non-standard type.
- typedef basic_streambuf<char_type, traits_type> __streambuf_type;
- //@}
-
- friend class basic_ios<char_type, traits_type>;
- friend class basic_istream<char_type, traits_type>;
- friend class basic_ostream<char_type, traits_type>;
- friend class istreambuf_iterator<char_type, traits_type>;
- friend class ostreambuf_iterator<char_type, traits_type>;
-
- friend streamsize
- __copy_streambufs_eof<>(__streambuf_type*, __streambuf_type*, bool&);
-
- template<bool _IsMove, typename _CharT2>
- friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
- _CharT2*>::__type
- __copy_move_a2(istreambuf_iterator<_CharT2>,
- istreambuf_iterator<_CharT2>, _CharT2*);
-
- template<typename _CharT2>
- friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
- istreambuf_iterator<_CharT2> >::__type
- find(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>,
- const _CharT2&);
-
- template<typename _CharT2, typename _Traits2>
- friend basic_istream<_CharT2, _Traits2>&
- operator>>(basic_istream<_CharT2, _Traits2>&, _CharT2*);
-
- template<typename _CharT2, typename _Traits2, typename _Alloc>
- friend basic_istream<_CharT2, _Traits2>&
- operator>>(basic_istream<_CharT2, _Traits2>&,
- basic_string<_CharT2, _Traits2, _Alloc>&);
-
- template<typename _CharT2, typename _Traits2, typename _Alloc>
- friend basic_istream<_CharT2, _Traits2>&
- getline(basic_istream<_CharT2, _Traits2>&,
- basic_string<_CharT2, _Traits2, _Alloc>&, _CharT2);
-
- protected:
- //@{
- /**
- * This is based on _IO_FILE, just reordered to be more consistent,
- * and is intended to be the most minimal abstraction for an
- * internal buffer.
- * - get == input == read
- * - put == output == write
- */
- char_type* _M_in_beg; // Start of get area.
- char_type* _M_in_cur; // Current read area.
- char_type* _M_in_end; // End of get area.
- char_type* _M_out_beg; // Start of put area.
- char_type* _M_out_cur; // Current put area.
- char_type* _M_out_end; // End of put area.
-
- /// Current locale setting.
- locale _M_buf_locale;
-
- public:
- /// Destructor deallocates no buffer space.
- virtual
- ~basic_streambuf()
- { }
-
- // [27.5.2.2.1] locales
- /**
- * @brief Entry point for imbue().
- * @param loc The new locale.
- * @return The previous locale.
- *
- * Calls the derived imbue(loc).
- */
- locale
- pubimbue(const locale &__loc)
- {
- locale __tmp(this->getloc());
- this->imbue(__loc);
- _M_buf_locale = __loc;
- return __tmp;
- }
-
- /**
- * @brief Locale access.
- * @return The current locale in effect.
- *
- * If pubimbue(loc) has been called, then the most recent @c loc
- * is returned. Otherwise the global locale in effect at the time
- * of construction is returned.
- */
- locale
- getloc() const
- { return _M_buf_locale; }
-
- // [27.5.2.2.2] buffer management and positioning
- //@{
- /**
- * @brief Entry points for derived buffer functions.
- *
- * The public versions of @c pubfoo dispatch to the protected
- * derived @c foo member functions, passing the arguments (if any)
- * and returning the result unchanged.
- */
- __streambuf_type*
- pubsetbuf(char_type* __s, streamsize __n)
- { return this->setbuf(__s, __n); }
-
- pos_type
- pubseekoff(off_type __off, ios_base::seekdir __way,
- ios_base::openmode __mode = ios_base::in | ios_base::out)
- { return this->seekoff(__off, __way, __mode); }
-
- pos_type
- pubseekpos(pos_type __sp,
- ios_base::openmode __mode = ios_base::in | ios_base::out)
- { return this->seekpos(__sp, __mode); }
-
- int
- pubsync() { return this->sync(); }
- //@}
-
- // [27.5.2.2.3] get area
- /**
- * @brief Looking ahead into the stream.
- * @return The number of characters available.
- *
- * If a read position is available, returns the number of characters
- * available for reading before the buffer must be refilled.
- * Otherwise returns the derived @c showmanyc().
- */
- streamsize
- in_avail()
- {
- const streamsize __ret = this->egptr() - this->gptr();
- return __ret ? __ret : this->showmanyc();
- }
-
- /**
- * @brief Getting the next character.
- * @return The next character, or eof.
- *
- * Calls @c sbumpc(), and if that function returns
- * @c traits::eof(), so does this function. Otherwise, @c sgetc().
- */
- int_type
- snextc()
- {
- int_type __ret = traits_type::eof();
- if (__builtin_expect(!traits_type::eq_int_type(this->sbumpc(),
- __ret), true))
- __ret = this->sgetc();
- return __ret;
- }
-
- /**
- * @brief Getting the next character.
- * @return The next character, or eof.
- *
- * If the input read position is available, returns that character
- * and increments the read pointer, otherwise calls and returns
- * @c uflow().
- */
- int_type
- sbumpc()
- {
- int_type __ret;
- if (__builtin_expect(this->gptr() < this->egptr(), true))
- {
- __ret = traits_type::to_int_type(*this->gptr());
- this->gbump(1);
- }
- else
- __ret = this->uflow();
- return __ret;
- }
-
- /**
- * @brief Getting the next character.
- * @return The next character, or eof.
- *
- * If the input read position is available, returns that character,
- * otherwise calls and returns @c underflow(). Does not move the
- * read position after fetching the character.
- */
- int_type
- sgetc()
- {
- int_type __ret;
- if (__builtin_expect(this->gptr() < this->egptr(), true))
- __ret = traits_type::to_int_type(*this->gptr());
- else
- __ret = this->underflow();
- return __ret;
- }
-
- /**
- * @brief Entry point for xsgetn.
- * @param s A buffer area.
- * @param n A count.
- *
- * Returns xsgetn(s,n). The effect is to fill @a s[0] through
- * @a s[n-1] with characters from the input sequence, if possible.
- */
- streamsize
- sgetn(char_type* __s, streamsize __n)
- { return this->xsgetn(__s, __n); }
-
- // [27.5.2.2.4] putback
- /**
- * @brief Pushing characters back into the input stream.
- * @param c The character to push back.
- * @return The previous character, if possible.
- *
- * Similar to sungetc(), but @a c is pushed onto the stream instead
- * of "the previous character". If successful, the next character
- * fetched from the input stream will be @a c.
- */
- int_type
- sputbackc(char_type __c)
- {
- int_type __ret;
- const bool __testpos = this->eback() < this->gptr();
- if (__builtin_expect(!__testpos ||
- !traits_type::eq(__c, this->gptr()[-1]), false))
- __ret = this->pbackfail(traits_type::to_int_type(__c));
- else
- {
- this->gbump(-1);
- __ret = traits_type::to_int_type(*this->gptr());
- }
- return __ret;
- }
-
- /**
- * @brief Moving backwards in the input stream.
- * @return The previous character, if possible.
- *
- * 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".
- */
- int_type
- sungetc()
- {
- int_type __ret;
- if (__builtin_expect(this->eback() < this->gptr(), true))
- {
- this->gbump(-1);
- __ret = traits_type::to_int_type(*this->gptr());
- }
- else
- __ret = this->pbackfail();
- return __ret;
- }
-
- // [27.5.2.2.5] put area
- /**
- * @brief Entry point for all single-character output functions.
- * @param c A character to output.
- * @return @a c, if possible.
- *
- * One of two public output functions.
- *
- * If a write position is available for the output sequence (i.e.,
- * the buffer is not full), stores @a c in that position, increments
- * the position, and returns @c traits::to_int_type(c). If a write
- * position is not available, returns @c overflow(c).
- */
- int_type
- sputc(char_type __c)
- {
- int_type __ret;
- if (__builtin_expect(this->pptr() < this->epptr(), true))
- {
- *this->pptr() = __c;
- this->pbump(1);
- __ret = traits_type::to_int_type(__c);
- }
- else
- __ret = this->overflow(traits_type::to_int_type(__c));
- return __ret;
- }
-
- /**
- * @brief Entry point for all single-character output functions.
- * @param s A buffer read area.
- * @param n A count.
- *
- * One of two public output functions.
- *
- *
- * Returns xsputn(s,n). The effect is to write @a s[0] through
- * @a s[n-1] to the output sequence, if possible.
- */
- streamsize
- sputn(const char_type* __s, streamsize __n)
- { return this->xsputn(__s, __n); }
-
- protected:
- /**
- * @brief Base constructor.
- *
- * Only called from derived constructors, and sets up all the
- * buffer data to zero, including the pointers described in the
- * basic_streambuf class description. Note that, as a result,
- * - the class starts with no read nor write positions available,
- * - this is not an error
- */
- basic_streambuf()
- : _M_in_beg(0), _M_in_cur(0), _M_in_end(0),
- _M_out_beg(0), _M_out_cur(0), _M_out_end(0),
- _M_buf_locale(locale())
- { }
-
- // [27.5.2.3.1] get area access
- //@{
- /**
- * @brief Access to the get area.
- *
- * These functions are only available to other protected functions,
- * including derived classes.
- *
- * - eback() returns the beginning pointer for the input sequence
- * - gptr() returns the next pointer for the input sequence
- * - egptr() returns the end pointer for the input sequence
- */
- char_type*
- eback() const { return _M_in_beg; }
-
- char_type*
- gptr() const { return _M_in_cur; }
-
- char_type*
- egptr() const { return _M_in_end; }
- //@}
-
- /**
- * @brief Moving the read position.
- * @param n The delta by which to move.
- *
- * This just advances the read position without returning any data.
- */
- void
- gbump(int __n) { _M_in_cur += __n; }
-
- /**
- * @brief Setting the three read area pointers.
- * @param gbeg A pointer.
- * @param gnext A pointer.
- * @param gend A pointer.
- * @post @a gbeg == @c eback(), @a gnext == @c gptr(), and
- * @a gend == @c egptr()
- */
- void
- setg(char_type* __gbeg, char_type* __gnext, char_type* __gend)
- {
- _M_in_beg = __gbeg;
- _M_in_cur = __gnext;
- _M_in_end = __gend;
- }
-
- // [27.5.2.3.2] put area access
- //@{
- /**
- * @brief Access to the put area.
- *
- * These functions are only available to other protected functions,
- * including derived classes.
- *
- * - pbase() returns the beginning pointer for the output sequence
- * - pptr() returns the next pointer for the output sequence
- * - epptr() returns the end pointer for the output sequence
- */
- char_type*
- pbase() const { return _M_out_beg; }
-
- char_type*
- pptr() const { return _M_out_cur; }
-
- char_type*
- epptr() const { return _M_out_end; }
- //@}
-
- /**
- * @brief Moving the write position.
- * @param n The delta by which to move.
- *
- * This just advances the write position without returning any data.
- */
- void
- pbump(int __n) { _M_out_cur += __n; }
-
- /**
- * @brief Setting the three write area pointers.
- * @param pbeg A pointer.
- * @param pend A pointer.
- * @post @a pbeg == @c pbase(), @a pbeg == @c pptr(), and
- * @a pend == @c epptr()
- */
- void
- setp(char_type* __pbeg, char_type* __pend)
- {
- _M_out_beg = _M_out_cur = __pbeg;
- _M_out_end = __pend;
- }
-
- // [27.5.2.4] virtual functions
- // [27.5.2.4.1] locales
- /**
- * @brief Changes translations.
- * @param 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."
- *
- * @note Base class version does nothing.
- */
- virtual void
- imbue(const locale&)
- { }
-
- // [27.5.2.4.2] buffer management and positioning
- /**
- * @brief Manipulates the buffer.
- *
- * Each derived class provides its own appropriate behavior. See
- * the next-to-last paragraph of
- * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch25s02.html
- * for more on this function.
- *
- * @note Base class version does nothing, returns @c this.
- */
- virtual basic_streambuf<char_type,_Traits>*
- setbuf(char_type*, streamsize)
- { return this; }
-
- /**
- * @brief Alters the stream positions.
- *
- * Each derived class provides its own appropriate behavior.
- * @note Base class version does nothing, returns a @c pos_type
- * that represents an invalid stream position.
- */
- virtual pos_type
- seekoff(off_type, ios_base::seekdir,
- ios_base::openmode /*__mode*/ = ios_base::in | ios_base::out)
- { return pos_type(off_type(-1)); }
-
- /**
- * @brief Alters the stream positions.
- *
- * Each derived class provides its own appropriate behavior.
- * @note Base class version does nothing, returns a @c pos_type
- * that represents an invalid stream position.
- */
- virtual pos_type
- seekpos(pos_type,
- ios_base::openmode /*__mode*/ = ios_base::in | ios_base::out)
- { return pos_type(off_type(-1)); }
-
- /**
- * @brief Synchronizes the buffer arrays with the controlled sequences.
- * @return -1 on failure.
- *
- * Each derived class provides its own appropriate behavior,
- * including the definition of "failure".
- * @note Base class version does nothing, returns zero.
- */
- virtual int
- sync() { return 0; }
-
- // [27.5.2.4.3] get area
- /**
- * @brief Investigating the data available.
- * @return An estimate of the number of characters available in the
- * input sequence, or -1.
- *
- * "If it returns a positive value, then successive calls to
- * @c underflow() will not return @c traits::eof() until at least that
- * number of characters have been supplied. If @c showmanyc()
- * returns -1, then calls to @c underflow() or @c uflow() will fail."
- * [27.5.2.4.3]/1
- *
- * @note Base class version does nothing, returns zero.
- * @note The standard adds that "the intention is not only that the
- * calls [to underflow or uflow] will not return @c eof() but
- * that they will return "immediately".
- * @note The standard adds that "the morphemes of @c showmanyc are
- * "es-how-many-see", not "show-manic".
- */
- virtual streamsize
- showmanyc() { return 0; }
-
- /**
- * @brief Multiple character extraction.
- * @param s A buffer area.
- * @param n Maximum number of characters to assign.
- * @return The number of characters assigned.
- *
- * Fills @a s[0] through @a s[n-1] with characters from the input
- * sequence, as if by @c sbumpc(). Stops when either @a n characters
- * have been copied, or when @c traits::eof() would be copied.
- *
- * It is expected that derived classes provide a more efficient
- * implementation by overriding this definition.
- */
- virtual streamsize
- xsgetn(char_type* __s, streamsize __n);
-
- /**
- * @brief Fetches more data from the controlled sequence.
- * @return The first character from the <em>pending sequence</em>.
- *
- * 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 @c traits::eof() to
- * indicate a null pending sequence.
- *
- * For a formal definition 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++/manual/bk01pt11ch25.html
- *
- * @note Base class version does nothing, returns eof().
- */
- virtual int_type
- underflow()
- { return traits_type::eof(); }
-
- /**
- * @brief Fetches more data from the controlled sequence.
- * @return The first character from the <em>pending sequence</em>.
- *
- * Informally, this function does the same thing as @c underflow(),
- * and in fact is required to call that function. It also returns
- * the new character, like @c underflow() does. However, this
- * function also moves the read position forward by one.
- */
- virtual int_type
- uflow()
- {
- int_type __ret = traits_type::eof();
- const bool __testeof = traits_type::eq_int_type(this->underflow(),
- __ret);
- if (!__testeof)
- {
- __ret = traits_type::to_int_type(*this->gptr());
- this->gbump(1);
- }
- return __ret;
- }
-
- // [27.5.2.4.4] putback
- /**
- * @brief Tries to back up the input sequence.
- * @param c The character to be inserted back into the sequence.
- * @return eof() on failure, "some other value" on success
- * @post The constraints of @c gptr(), @c eback(), and @c pptr()
- * are the same as for @c underflow().
- *
- * @note Base class version does nothing, returns eof().
- */
- virtual int_type
- pbackfail(int_type /* __c */ = traits_type::eof())
- { return traits_type::eof(); }
-
- // Put area:
- /**
- * @brief Multiple character insertion.
- * @param s A buffer area.
- * @param n Maximum number of characters to write.
- * @return The number of characters written.
- *
- * Writes @a s[0] through @a s[n-1] to the output sequence, as if
- * by @c sputc(). Stops when either @a n characters have been
- * copied, or when @c sputc() would return @c traits::eof().
- *
- * It is expected that derived classes provide a more efficient
- * implementation by overriding this definition.
- */
- virtual streamsize
- xsputn(const char_type* __s, streamsize __n);
-
- /**
- * @brief Consumes data from the buffer; writes to the
- * controlled sequence.
- * @param c An additional character to consume.
- * @return eof() to indicate failure, something else (usually
- * @a c, or not_eof())
- *
- * 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 @a c is also
- * written out, if @a c is not @c eof().
- *
- * For a formal definition 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).
- *
- * @note Base class version does nothing, returns eof().
- */
- virtual int_type
- overflow(int_type /* __c */ = traits_type::eof())
- { return traits_type::eof(); }
-
-#if _GLIBCXX_DEPRECATED
- // Annex D.6
- public:
- /**
- * @brief 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
- */
- void
- stossc()
- {
- if (this->gptr() < this->egptr())
- this->gbump(1);
- else
- this->uflow();
- }
-#endif
-
- private:
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // Side effect of DR 50.
- basic_streambuf(const __streambuf_type& __sb)
- : _M_in_beg(__sb._M_in_beg), _M_in_cur(__sb._M_in_cur),
- _M_in_end(__sb._M_in_end), _M_out_beg(__sb._M_out_beg),
- _M_out_cur(__sb._M_out_cur), _M_out_end(__sb._M_out_cur),
- _M_buf_locale(__sb._M_buf_locale)
- { }
-
- __streambuf_type&
- operator=(const __streambuf_type&) { return *this; };
- };
-
- // Explicit specialization declarations, defined in src/streambuf.cc.
- template<>
- streamsize
- __copy_streambufs_eof(basic_streambuf<char>* __sbin,
- basic_streambuf<char>* __sbout, bool& __ineof);
-#ifdef _GLIBCXX_USE_WCHAR_T
- template<>
- streamsize
- __copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin,
- basic_streambuf<wchar_t>* __sbout, bool& __ineof);
-#endif
-
-_GLIBCXX_END_NAMESPACE
-
-#ifndef _GLIBCXX_EXPORT_TEMPLATE
-# include <bits/streambuf.tcc>
-#endif
-
-#endif /* _GLIBCXX_STREAMBUF */