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	RELENG_9_1_BP:1.2.2.2
	RELENG_9:1.2.0.2;
locks; strict;
comment	@# @;


1.5
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next	1.4;

1.4
date	2012.11.17.03.36.33;	author svnexp;	state Exp;
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1.2
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date	2012.05.22.18.30.14;	author theraven;	state dead;
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desc
@@


1.5
log
@## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/249998
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
@
text
@// -*- C++ -*-
//===------------------------- streambuf ----------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_STEAMBUF
#define _LIBCPP_STEAMBUF

/*
    streambuf synopsis

namespace std
{

template <class charT, class traits = char_traits<charT> >
class basic_streambuf
{
public:
    // types:
    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;

    virtual ~basic_streambuf();

    // 27.6.2.2.1 locales:
    locale pubimbue(const locale& loc);
    locale getloc() const;

    // 27.6.2.2.2 buffer and positioning:
    basic_streambuf* pubsetbuf(char_type* s, streamsize n);
    pos_type pubseekoff(off_type off, ios_base::seekdir way,
                        ios_base::openmode which = ios_base::in | ios_base::out);
    pos_type pubseekpos(pos_type sp,
                        ios_base::openmode which = ios_base::in | ios_base::out);
    int pubsync();

    // Get and put areas:
    // 27.6.2.2.3 Get area:
    streamsize in_avail();
    int_type snextc();
    int_type sbumpc();
    int_type sgetc();
    streamsize sgetn(char_type* s, streamsize n);

    // 27.6.2.2.4 Putback:
    int_type sputbackc(char_type c);
    int_type sungetc();

    // 27.6.2.2.5 Put area:
    int_type sputc(char_type c);
    streamsize sputn(const char_type* s, streamsize n);

protected:
    basic_streambuf();
    basic_streambuf(const basic_streambuf& rhs);
    basic_streambuf& operator=(const basic_streambuf& rhs);
    void swap(basic_streambuf& rhs);

    // 27.6.2.3.2 Get area:
    char_type* eback() const;
    char_type* gptr() const;
    char_type* egptr() const;
    void gbump(int n);
    void setg(char_type* gbeg, char_type* gnext, char_type* gend);

    // 27.6.2.3.3 Put area:
    char_type* pbase() const;
    char_type* pptr() const;
    char_type* epptr() const;
    void pbump(int n);
    void setp(char_type* pbeg, char_type* pend);

    // 27.6.2.4 virtual functions:
    // 27.6.2.4.1 Locales:
    virtual void imbue(const locale& loc);

    // 27.6.2.4.2 Buffer management and positioning:
    virtual basic_streambuf* setbuf(char_type* s, streamsize n);
    virtual pos_type seekoff(off_type off, ios_base::seekdir way,
                             ios_base::openmode which = ios_base::in | ios_base::out);
    virtual pos_type seekpos(pos_type sp,
                             ios_base::openmode which = ios_base::in | ios_base::out);
    virtual int sync();

    // 27.6.2.4.3 Get area:
    virtual streamsize showmanyc();
    virtual streamsize xsgetn(char_type* s, streamsize n);
    virtual int_type underflow();
    virtual int_type uflow();

    // 27.6.2.4.4 Putback:
    virtual int_type pbackfail(int_type c = traits_type::eof());

    // 27.6.2.4.5 Put area:
    virtual streamsize xsputn(const char_type* s, streamsize n);
    virtual int_type overflow (int_type c = traits_type::eof());
};

}  // std

*/

#include <__config>
#include <iosfwd>
#include <ios>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _CharT, class _Traits>
class _LIBCPP_TYPE_VIS basic_streambuf
{
public:
    // types:
    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;

    virtual ~basic_streambuf();

    // 27.6.2.2.1 locales:
    locale pubimbue(const locale& __loc);
    locale getloc() const;

    // 27.6.2.2.2 buffer and positioning:
    basic_streambuf* pubsetbuf(char_type* __s, streamsize __n);
    pos_type pubseekoff(off_type __off, ios_base::seekdir __way,
                        ios_base::openmode __which = ios_base::in | ios_base::out);
    pos_type pubseekpos(pos_type __sp,
                        ios_base::openmode __which = ios_base::in | ios_base::out);
    int pubsync();

    // Get and put areas:
    // 27.6.2.2.3 Get area:
    streamsize in_avail();
    int_type snextc();
    int_type sbumpc();
    int_type sgetc();
    streamsize sgetn(char_type* __s, streamsize __n);

    // 27.6.2.2.4 Putback:
    int_type sputbackc(char_type __c);
    int_type sungetc();

    // 27.6.2.2.5 Put area:
    int_type sputc(char_type __c);
    streamsize sputn(const char_type* __s, streamsize __n);

protected:
    basic_streambuf();
    basic_streambuf(const basic_streambuf& __rhs);
    basic_streambuf& operator=(const basic_streambuf& __rhs);
    void swap(basic_streambuf& __rhs);

    // 27.6.2.3.2 Get area:
    _LIBCPP_ALWAYS_INLINE char_type* eback() const {return __binp_;}
    _LIBCPP_ALWAYS_INLINE char_type* gptr()  const {return __ninp_;}
    _LIBCPP_ALWAYS_INLINE char_type* egptr() const {return __einp_;}
    void gbump(int __n);
    void setg(char_type* __gbeg, char_type* __gnext, char_type* __gend);

    // 27.6.2.3.3 Put area:
    _LIBCPP_ALWAYS_INLINE char_type* pbase() const {return __bout_;}
    _LIBCPP_ALWAYS_INLINE char_type* pptr()  const {return __nout_;}
    _LIBCPP_ALWAYS_INLINE char_type* epptr() const {return __eout_;}
    void pbump(int __n);
    void setp(char_type* __pbeg, char_type* __pend);

    // 27.6.2.4 virtual functions:
    // 27.6.2.4.1 Locales:
    virtual void imbue(const locale& __loc);

    // 27.6.2.4.2 Buffer management and positioning:
    virtual basic_streambuf* setbuf(char_type* __s, streamsize __n);
    virtual pos_type seekoff(off_type __off, ios_base::seekdir __way,
                             ios_base::openmode __which = ios_base::in | ios_base::out);
    virtual pos_type seekpos(pos_type __sp,
                             ios_base::openmode __which = ios_base::in | ios_base::out);
    virtual int sync();

    // 27.6.2.4.3 Get area:
    virtual streamsize showmanyc();
    virtual streamsize xsgetn(char_type* __s, streamsize __n);
    virtual int_type underflow();
    virtual int_type uflow();

    // 27.6.2.4.4 Putback:
    virtual int_type pbackfail(int_type __c = traits_type::eof());

    // 27.6.2.4.5 Put area:
    virtual streamsize xsputn(const char_type* __s, streamsize __n);
    virtual int_type overflow(int_type __c = traits_type::eof());

private:
    locale __loc_;
    char_type* __binp_;
    char_type* __ninp_;
    char_type* __einp_;
    char_type* __bout_;
    char_type* __nout_;
    char_type* __eout_;
};

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::~basic_streambuf()
{
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
locale
basic_streambuf<_CharT, _Traits>::pubimbue(const locale& __loc)
{
    imbue(__loc);
    locale __r = __loc_;
    __loc_ = __loc;
    return __r;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
locale
basic_streambuf<_CharT, _Traits>::getloc() const
{
    return __loc_;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
basic_streambuf<_CharT, _Traits>*
basic_streambuf<_CharT, _Traits>::pubsetbuf(char_type* __s, streamsize __n)
{
    return setbuf(__s, __n);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::pubseekoff(off_type __off,
                                             ios_base::seekdir __way,
                                             ios_base::openmode __which)
{
    return seekoff(__off, __way, __which);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::pubseekpos(pos_type __sp,
                                             ios_base::openmode __which)
{
    return seekpos(__sp, __which);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
int
basic_streambuf<_CharT, _Traits>::pubsync()
{
    return sync();
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
streamsize
basic_streambuf<_CharT, _Traits>::in_avail()
{
    if (__ninp_ < __einp_)
        return static_cast<streamsize>(__einp_ - __ninp_);
    return showmanyc();
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::snextc()
{
    if (sbumpc() == traits_type::eof())
        return traits_type::eof();
    return sgetc();
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sbumpc()
{
    if (__ninp_ == __einp_)
        return uflow();
    return traits_type::to_int_type(*__ninp_++);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sgetc()
{
    if (__ninp_ == __einp_)
        return underflow();
    return traits_type::to_int_type(*__ninp_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
streamsize
basic_streambuf<_CharT, _Traits>::sgetn(char_type* __s, streamsize __n)
{
    return xsgetn(__s, __n);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sputbackc(char_type __c)
{
    if (__binp_ == __ninp_ || !traits_type::eq(__c, __ninp_[-1]))
        return pbackfail(traits_type::to_int_type(__c));
    return traits_type::to_int_type(*--__ninp_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sungetc()
{
    if (__binp_ == __ninp_)
        return pbackfail();
    return traits_type::to_int_type(*--__ninp_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sputc(char_type __c)
{
    if (__nout_ == __eout_)
        return overflow(traits_type::to_int_type(__c));
    *__nout_++ = __c;
    return traits_type::to_int_type(__c);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
streamsize
basic_streambuf<_CharT, _Traits>::sputn(const char_type* __s, streamsize __n)
{
    return xsputn(__s, __n);
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::basic_streambuf()
    : __binp_(0),
      __ninp_(0),
      __einp_(0),
      __bout_(0),
      __nout_(0),
      __eout_(0)
{
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::basic_streambuf(const basic_streambuf& __sb)
    : __loc_(__sb.__loc_),
      __binp_(__sb.__binp_),
      __ninp_(__sb.__ninp_),
      __einp_(__sb.__einp_),
      __bout_(__sb.__bout_),
      __nout_(__sb.__nout_),
      __eout_(__sb.__eout_)
{
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>&
basic_streambuf<_CharT, _Traits>::operator=(const basic_streambuf& __sb)
{
    __loc_ = __sb.__loc_;
    __binp_ = __sb.__binp_;
    __ninp_ = __sb.__ninp_;
    __einp_ = __sb.__einp_;
    __bout_ = __sb.__bout_;
    __nout_ = __sb.__nout_;
    __eout_ = __sb.__eout_;
    return *this;
}

template <class _CharT, class _Traits>
void
basic_streambuf<_CharT, _Traits>::swap(basic_streambuf& __sb)
{
    _VSTD::swap(__loc_, __sb.__loc_);
    _VSTD::swap(__binp_, __sb.__binp_);
    _VSTD::swap(__ninp_, __sb.__ninp_);
    _VSTD::swap(__einp_, __sb.__einp_);
    _VSTD::swap(__bout_, __sb.__bout_);
    _VSTD::swap(__nout_, __sb.__nout_);
    _VSTD::swap(__eout_, __sb.__eout_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::gbump(int __n)
{
    __ninp_ += __n;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::setg(char_type* __gbeg, char_type* __gnext,
                                                          char_type* __gend)
{
    __binp_ = __gbeg;
    __ninp_ = __gnext;
    __einp_ = __gend;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::pbump(int __n)
{
    __nout_ += __n;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::setp(char_type* __pbeg, char_type* __pend)
{
    __bout_ = __nout_ = __pbeg;
    __eout_ = __pend;
}

template <class _CharT, class _Traits>
void
basic_streambuf<_CharT, _Traits>::imbue(const locale&)
{
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>*
basic_streambuf<_CharT, _Traits>::setbuf(char_type*, streamsize)
{
    return this;
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::seekoff(off_type, ios_base::seekdir,
                                          ios_base::openmode)
{
    return pos_type(off_type(-1));
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::seekpos(pos_type, ios_base::openmode)
{
    return pos_type(off_type(-1));
}

template <class _CharT, class _Traits>
int
basic_streambuf<_CharT, _Traits>::sync()
{
    return 0;
}

template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::showmanyc()
{
    return 0;
}

template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::xsgetn(char_type* __s, streamsize __n)
{
    const int_type __eof = traits_type::eof();
    int_type __c;
    streamsize __i = 0;
    for (;__i < __n; ++__i, ++__s)
    {
        if (__ninp_ < __einp_)
            *__s = *__ninp_++;
        else if ((__c = uflow()) != __eof)
            *__s = traits_type::to_char_type(__c);
        else
            break;
    }
    return __i;
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::underflow()
{
    return traits_type::eof();
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::uflow()
{
    if (underflow() == traits_type::eof())
        return traits_type::eof();
    return traits_type::to_int_type(*__ninp_++);
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::pbackfail(int_type)
{
    return traits_type::eof();
}

template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::xsputn(const char_type* __s, streamsize __n)
{
    streamsize __i = 0;
    int_type __eof = traits_type::eof();
    for (; __i < __n; ++__s, ++__i)
    {
        if (__nout_ < __eout_)
            *__nout_++ = *__s;
        else if (overflow(traits_type::to_int_type(*__s)) == __eof)
            break;
    }
    return __i;
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::overflow(int_type)
{
    return traits_type::eof();
}

_LIBCPP_EXTERN_TEMPLATE(class basic_streambuf<char>)
_LIBCPP_EXTERN_TEMPLATE(class basic_streambuf<wchar_t>)

_LIBCPP_EXTERN_TEMPLATE(class basic_ios<char>)
_LIBCPP_EXTERN_TEMPLATE(class basic_ios<wchar_t>)

_LIBCPP_END_NAMESPACE_STD

#endif  // _LIBCPP_STEAMBUF
@


1.4
log
@## SVN ##
## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/242945
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
## SVN ##
## SVN ## ------------------------------------------------------------------------
## SVN ## r242945 | theraven | 2012-11-13 03:27:43 +0000 (Tue, 13 Nov 2012) | 2 lines
## SVN ##
## SVN ## Import new version of libc++ into base.
## SVN ##
## SVN ## ------------------------------------------------------------------------
## SVN ##
@
text
@d122 1
a122 1
class _LIBCPP_VISIBLE basic_streambuf
@


1.3
log
@SVN rev 241903 on 2012-10-22 18:25:04Z by dim

Import libc++ trunk r165949.  Among other improvements and bug fixes,
this has many visibility problems fixed, which should help with
compiling certain ports that exercise C++11 mode (i.e. Firefox).

Also, belatedly add the LICENSE.TXT and accompanying CREDITS.TXT files,
which are referred to in all the source files.

MFC after:	1 month
@
text
@d556 2
a557 2
extern template class basic_streambuf<char>;
extern template class basic_streambuf<wchar_t>;
d559 2
a560 2
extern template class basic_ios<char>;
extern template class basic_ios<wchar_t>;
@


1.2
log
@SVN rev 232950 on 2012-03-14 00:09:36Z by theraven

Import new versions of libcxxrt and libc++.
Please tests any C++ code you care about with -stdlib=libc++!

Approved by:	dim (mentor)
@
text
@d543 1
a543 1
        else if (overflow(*__s) == __eof)
@


1.2.2.1
log
@file streambuf was added on branch RELENG_9 on 2012-05-22 18:32:26 +0000
@
text
@d1 564
@


1.2.2.2
log
@SVN rev 235798 on 2012-05-22 18:30:14Z by theraven

Merged libcxxrt and libc++.  Now available for testing on 9-stable with
-stdlib=libc++.  Changes to libstdc++ not yet merged, so it is not yet possible
to mix libstdc++ and libc++ in the same program.

Merged revisions: 226702,226785,227006,227755,227983,227987,228531,228630,228761,229067,230127,232950,233098,234715-234716,234772
@
text
@a0 564
// -*- C++ -*-
//===------------------------- streambuf ----------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_STEAMBUF
#define _LIBCPP_STEAMBUF

/*
    streambuf synopsis

namespace std
{

template <class charT, class traits = char_traits<charT> >
class basic_streambuf
{
public:
    // types:
    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;

    virtual ~basic_streambuf();

    // 27.6.2.2.1 locales:
    locale pubimbue(const locale& loc);
    locale getloc() const;

    // 27.6.2.2.2 buffer and positioning:
    basic_streambuf* pubsetbuf(char_type* s, streamsize n);
    pos_type pubseekoff(off_type off, ios_base::seekdir way,
                        ios_base::openmode which = ios_base::in | ios_base::out);
    pos_type pubseekpos(pos_type sp,
                        ios_base::openmode which = ios_base::in | ios_base::out);
    int pubsync();

    // Get and put areas:
    // 27.6.2.2.3 Get area:
    streamsize in_avail();
    int_type snextc();
    int_type sbumpc();
    int_type sgetc();
    streamsize sgetn(char_type* s, streamsize n);

    // 27.6.2.2.4 Putback:
    int_type sputbackc(char_type c);
    int_type sungetc();

    // 27.6.2.2.5 Put area:
    int_type sputc(char_type c);
    streamsize sputn(const char_type* s, streamsize n);

protected:
    basic_streambuf();
    basic_streambuf(const basic_streambuf& rhs);
    basic_streambuf& operator=(const basic_streambuf& rhs);
    void swap(basic_streambuf& rhs);

    // 27.6.2.3.2 Get area:
    char_type* eback() const;
    char_type* gptr() const;
    char_type* egptr() const;
    void gbump(int n);
    void setg(char_type* gbeg, char_type* gnext, char_type* gend);

    // 27.6.2.3.3 Put area:
    char_type* pbase() const;
    char_type* pptr() const;
    char_type* epptr() const;
    void pbump(int n);
    void setp(char_type* pbeg, char_type* pend);

    // 27.6.2.4 virtual functions:
    // 27.6.2.4.1 Locales:
    virtual void imbue(const locale& loc);

    // 27.6.2.4.2 Buffer management and positioning:
    virtual basic_streambuf* setbuf(char_type* s, streamsize n);
    virtual pos_type seekoff(off_type off, ios_base::seekdir way,
                             ios_base::openmode which = ios_base::in | ios_base::out);
    virtual pos_type seekpos(pos_type sp,
                             ios_base::openmode which = ios_base::in | ios_base::out);
    virtual int sync();

    // 27.6.2.4.3 Get area:
    virtual streamsize showmanyc();
    virtual streamsize xsgetn(char_type* s, streamsize n);
    virtual int_type underflow();
    virtual int_type uflow();

    // 27.6.2.4.4 Putback:
    virtual int_type pbackfail(int_type c = traits_type::eof());

    // 27.6.2.4.5 Put area:
    virtual streamsize xsputn(const char_type* s, streamsize n);
    virtual int_type overflow (int_type c = traits_type::eof());
};

}  // std

*/

#include <__config>
#include <iosfwd>
#include <ios>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _CharT, class _Traits>
class _LIBCPP_VISIBLE basic_streambuf
{
public:
    // types:
    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;

    virtual ~basic_streambuf();

    // 27.6.2.2.1 locales:
    locale pubimbue(const locale& __loc);
    locale getloc() const;

    // 27.6.2.2.2 buffer and positioning:
    basic_streambuf* pubsetbuf(char_type* __s, streamsize __n);
    pos_type pubseekoff(off_type __off, ios_base::seekdir __way,
                        ios_base::openmode __which = ios_base::in | ios_base::out);
    pos_type pubseekpos(pos_type __sp,
                        ios_base::openmode __which = ios_base::in | ios_base::out);
    int pubsync();

    // Get and put areas:
    // 27.6.2.2.3 Get area:
    streamsize in_avail();
    int_type snextc();
    int_type sbumpc();
    int_type sgetc();
    streamsize sgetn(char_type* __s, streamsize __n);

    // 27.6.2.2.4 Putback:
    int_type sputbackc(char_type __c);
    int_type sungetc();

    // 27.6.2.2.5 Put area:
    int_type sputc(char_type __c);
    streamsize sputn(const char_type* __s, streamsize __n);

protected:
    basic_streambuf();
    basic_streambuf(const basic_streambuf& __rhs);
    basic_streambuf& operator=(const basic_streambuf& __rhs);
    void swap(basic_streambuf& __rhs);

    // 27.6.2.3.2 Get area:
    _LIBCPP_ALWAYS_INLINE char_type* eback() const {return __binp_;}
    _LIBCPP_ALWAYS_INLINE char_type* gptr()  const {return __ninp_;}
    _LIBCPP_ALWAYS_INLINE char_type* egptr() const {return __einp_;}
    void gbump(int __n);
    void setg(char_type* __gbeg, char_type* __gnext, char_type* __gend);

    // 27.6.2.3.3 Put area:
    _LIBCPP_ALWAYS_INLINE char_type* pbase() const {return __bout_;}
    _LIBCPP_ALWAYS_INLINE char_type* pptr()  const {return __nout_;}
    _LIBCPP_ALWAYS_INLINE char_type* epptr() const {return __eout_;}
    void pbump(int __n);
    void setp(char_type* __pbeg, char_type* __pend);

    // 27.6.2.4 virtual functions:
    // 27.6.2.4.1 Locales:
    virtual void imbue(const locale& __loc);

    // 27.6.2.4.2 Buffer management and positioning:
    virtual basic_streambuf* setbuf(char_type* __s, streamsize __n);
    virtual pos_type seekoff(off_type __off, ios_base::seekdir __way,
                             ios_base::openmode __which = ios_base::in | ios_base::out);
    virtual pos_type seekpos(pos_type __sp,
                             ios_base::openmode __which = ios_base::in | ios_base::out);
    virtual int sync();

    // 27.6.2.4.3 Get area:
    virtual streamsize showmanyc();
    virtual streamsize xsgetn(char_type* __s, streamsize __n);
    virtual int_type underflow();
    virtual int_type uflow();

    // 27.6.2.4.4 Putback:
    virtual int_type pbackfail(int_type __c = traits_type::eof());

    // 27.6.2.4.5 Put area:
    virtual streamsize xsputn(const char_type* __s, streamsize __n);
    virtual int_type overflow(int_type __c = traits_type::eof());

private:
    locale __loc_;
    char_type* __binp_;
    char_type* __ninp_;
    char_type* __einp_;
    char_type* __bout_;
    char_type* __nout_;
    char_type* __eout_;
};

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::~basic_streambuf()
{
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
locale
basic_streambuf<_CharT, _Traits>::pubimbue(const locale& __loc)
{
    imbue(__loc);
    locale __r = __loc_;
    __loc_ = __loc;
    return __r;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
locale
basic_streambuf<_CharT, _Traits>::getloc() const
{
    return __loc_;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
basic_streambuf<_CharT, _Traits>*
basic_streambuf<_CharT, _Traits>::pubsetbuf(char_type* __s, streamsize __n)
{
    return setbuf(__s, __n);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::pubseekoff(off_type __off,
                                             ios_base::seekdir __way,
                                             ios_base::openmode __which)
{
    return seekoff(__off, __way, __which);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::pubseekpos(pos_type __sp,
                                             ios_base::openmode __which)
{
    return seekpos(__sp, __which);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
int
basic_streambuf<_CharT, _Traits>::pubsync()
{
    return sync();
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
streamsize
basic_streambuf<_CharT, _Traits>::in_avail()
{
    if (__ninp_ < __einp_)
        return static_cast<streamsize>(__einp_ - __ninp_);
    return showmanyc();
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::snextc()
{
    if (sbumpc() == traits_type::eof())
        return traits_type::eof();
    return sgetc();
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sbumpc()
{
    if (__ninp_ == __einp_)
        return uflow();
    return traits_type::to_int_type(*__ninp_++);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sgetc()
{
    if (__ninp_ == __einp_)
        return underflow();
    return traits_type::to_int_type(*__ninp_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
streamsize
basic_streambuf<_CharT, _Traits>::sgetn(char_type* __s, streamsize __n)
{
    return xsgetn(__s, __n);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sputbackc(char_type __c)
{
    if (__binp_ == __ninp_ || !traits_type::eq(__c, __ninp_[-1]))
        return pbackfail(traits_type::to_int_type(__c));
    return traits_type::to_int_type(*--__ninp_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sungetc()
{
    if (__binp_ == __ninp_)
        return pbackfail();
    return traits_type::to_int_type(*--__ninp_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::sputc(char_type __c)
{
    if (__nout_ == __eout_)
        return overflow(traits_type::to_int_type(__c));
    *__nout_++ = __c;
    return traits_type::to_int_type(__c);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
streamsize
basic_streambuf<_CharT, _Traits>::sputn(const char_type* __s, streamsize __n)
{
    return xsputn(__s, __n);
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::basic_streambuf()
    : __binp_(0),
      __ninp_(0),
      __einp_(0),
      __bout_(0),
      __nout_(0),
      __eout_(0)
{
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::basic_streambuf(const basic_streambuf& __sb)
    : __loc_(__sb.__loc_),
      __binp_(__sb.__binp_),
      __ninp_(__sb.__ninp_),
      __einp_(__sb.__einp_),
      __bout_(__sb.__bout_),
      __nout_(__sb.__nout_),
      __eout_(__sb.__eout_)
{
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>&
basic_streambuf<_CharT, _Traits>::operator=(const basic_streambuf& __sb)
{
    __loc_ = __sb.__loc_;
    __binp_ = __sb.__binp_;
    __ninp_ = __sb.__ninp_;
    __einp_ = __sb.__einp_;
    __bout_ = __sb.__bout_;
    __nout_ = __sb.__nout_;
    __eout_ = __sb.__eout_;
    return *this;
}

template <class _CharT, class _Traits>
void
basic_streambuf<_CharT, _Traits>::swap(basic_streambuf& __sb)
{
    _VSTD::swap(__loc_, __sb.__loc_);
    _VSTD::swap(__binp_, __sb.__binp_);
    _VSTD::swap(__ninp_, __sb.__ninp_);
    _VSTD::swap(__einp_, __sb.__einp_);
    _VSTD::swap(__bout_, __sb.__bout_);
    _VSTD::swap(__nout_, __sb.__nout_);
    _VSTD::swap(__eout_, __sb.__eout_);
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::gbump(int __n)
{
    __ninp_ += __n;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::setg(char_type* __gbeg, char_type* __gnext,
                                                          char_type* __gend)
{
    __binp_ = __gbeg;
    __ninp_ = __gnext;
    __einp_ = __gend;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::pbump(int __n)
{
    __nout_ += __n;
}

template <class _CharT, class _Traits>
inline _LIBCPP_INLINE_VISIBILITY
void
basic_streambuf<_CharT, _Traits>::setp(char_type* __pbeg, char_type* __pend)
{
    __bout_ = __nout_ = __pbeg;
    __eout_ = __pend;
}

template <class _CharT, class _Traits>
void
basic_streambuf<_CharT, _Traits>::imbue(const locale&)
{
}

template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>*
basic_streambuf<_CharT, _Traits>::setbuf(char_type*, streamsize)
{
    return this;
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::seekoff(off_type, ios_base::seekdir,
                                          ios_base::openmode)
{
    return pos_type(off_type(-1));
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::seekpos(pos_type, ios_base::openmode)
{
    return pos_type(off_type(-1));
}

template <class _CharT, class _Traits>
int
basic_streambuf<_CharT, _Traits>::sync()
{
    return 0;
}

template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::showmanyc()
{
    return 0;
}

template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::xsgetn(char_type* __s, streamsize __n)
{
    const int_type __eof = traits_type::eof();
    int_type __c;
    streamsize __i = 0;
    for (;__i < __n; ++__i, ++__s)
    {
        if (__ninp_ < __einp_)
            *__s = *__ninp_++;
        else if ((__c = uflow()) != __eof)
            *__s = traits_type::to_char_type(__c);
        else
            break;
    }
    return __i;
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::underflow()
{
    return traits_type::eof();
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::uflow()
{
    if (underflow() == traits_type::eof())
        return traits_type::eof();
    return traits_type::to_int_type(*__ninp_++);
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::pbackfail(int_type)
{
    return traits_type::eof();
}

template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::xsputn(const char_type* __s, streamsize __n)
{
    streamsize __i = 0;
    int_type __eof = traits_type::eof();
    for (; __i < __n; ++__s, ++__i)
    {
        if (__nout_ < __eout_)
            *__nout_++ = *__s;
        else if (overflow(*__s) == __eof)
            break;
    }
    return __i;
}

template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::overflow(int_type)
{
    return traits_type::eof();
}

extern template class basic_streambuf<char>;
extern template class basic_streambuf<wchar_t>;

extern template class basic_ios<char>;
extern template class basic_ios<wchar_t>;

_LIBCPP_END_NAMESPACE_STD

#endif  // _LIBCPP_STEAMBUF
@


1.2.2.3
log
@## SVN ##
## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/ 243376
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
## SVN ##
## SVN ## ------------------------------------------------------------------------
## SVN ## r243376 | dim | 2012-11-21 18:38:56 +0000 (Wed, 21 Nov 2012) | 14 lines
## SVN ##
## SVN ## MFC r241903:
## SVN ##
## SVN ##   Import libc++ trunk r165949.  Among other improvements and bug fixes,
## SVN ##   this has many visibility problems fixed, which should help with
## SVN ##   compiling certain ports that exercise C++11 mode (i.e. Firefox).
## SVN ##
## SVN ##   Also, belatedly add the LICENSE.TXT and accompanying CREDITS.TXT files,
## SVN ##   which are referred to in all the source files.
## SVN ##
## SVN ## MFC r241907:
## SVN ##
## SVN ##   Fix two -Wsystem-header warnings in libc++ that were exposed by the new
## SVN ##   ATF import.  These have also been sent upstream.
## SVN ##
## SVN ## ------------------------------------------------------------------------
## SVN ##
@
text
@d543 1
a543 1
        else if (overflow(traits_type::to_int_type(*__s)) == __eof)
@


1.2.2.4
log
@## SVN ##
## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/243683
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
## SVN ##
## SVN ## ------------------------------------------------------------------------
## SVN ## r243683 | dim | 2012-11-29 21:26:57 +0000 (Thu, 29 Nov 2012) | 4 lines
## SVN ##
## SVN ## MFC r242945 (by theraven):
## SVN ##
## SVN ##   Import new version of libc++ into base.
## SVN ##
## SVN ## ------------------------------------------------------------------------
## SVN ##
@
text
@d556 2
a557 2
_LIBCPP_EXTERN_TEMPLATE(class basic_streambuf<char>)
_LIBCPP_EXTERN_TEMPLATE(class basic_streambuf<wchar_t>)
d559 2
a560 2
_LIBCPP_EXTERN_TEMPLATE(class basic_ios<char>)
_LIBCPP_EXTERN_TEMPLATE(class basic_ios<wchar_t>)
@


1.2.2.5
log
@## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/250514
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
@
text
@d122 1
a122 1
class _LIBCPP_TYPE_VIS basic_streambuf
@


1.2.2.6
log
@## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/262801
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
@
text
@d122 1
a122 1
class _LIBCPP_TYPE_VIS_ONLY basic_streambuf
d556 2
a557 2
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_streambuf<char>)
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_streambuf<wchar_t>)
d559 2
a560 2
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_ios<char>)
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_ios<wchar_t>)
@


1.1
log
@SVN rev 227983 on 2011-11-25 20:59:04Z by theraven

Import libc++ / libcxxrt into base.  Not build by default yet (use
MK_LIBCPLUSPLUS=yes to enable).  This is a work-in-progress.  It works for
me, but is not guaranteed to work for anyone else and may eat your dog.

To build C++ using libc++, add -stdlib=libc++ to your CXX and LD flags.

Bug reports welcome, bug fixes even more welcome...

Approved by:	dim (mentor)
@
text
@d464 2
a465 2
basic_streambuf<_CharT, _Traits>::seekoff(off_type __off, ios_base::seekdir __way,
                                          ios_base::openmode __which)
d472 1
a472 1
basic_streambuf<_CharT, _Traits>::seekpos(pos_type __sp, ios_base::openmode __which)
d551 1
a551 1
basic_streambuf<_CharT, _Traits>::overflow(int_type __c)
@

