Remove libc++ and libc++abi 8.0.0 now that we switched to version 10.0.1

in the gnu/ directory.

1 files changed, 0 insertions, 1518 deletions

diff --git a/lib/libcxx/include/istream b/lib/libcxx/include/istream
deleted file mode 100644
index 30ee4f4b871..00000000000
--- a/lib/libcxx/include/istream
+++ /dev/null
@@ -1,1518 +0,0 @@
-// -*- C++ -*-
-//===--------------------------- istream ----------------------------------===//
-//
-//                     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_ISTREAM
-#define _LIBCPP_ISTREAM
-
-/*
-    istream synopsis
-
-template <class charT, class traits = char_traits<charT> >
-class basic_istream
-    : virtual public basic_ios<charT,traits>
-{
-public:
-    // types (inherited from basic_ios (27.5.4)):
-    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;
-
-    // 27.7.1.1.1 Constructor/destructor:
-    explicit basic_istream(basic_streambuf<char_type, traits_type>* sb);
-    basic_istream(basic_istream&& rhs);
-    virtual ~basic_istream();
-
-    // 27.7.1.1.2 Assign/swap:
-    basic_istream& operator=(basic_istream&& rhs);
-    void swap(basic_istream& rhs);
-
-    // 27.7.1.1.3 Prefix/suffix:
-    class sentry;
-
-    // 27.7.1.2 Formatted input:
-    basic_istream& operator>>(basic_istream& (*pf)(basic_istream&));
-    basic_istream& operator>>(basic_ios<char_type, traits_type>&
-                              (*pf)(basic_ios<char_type, traits_type>&));
-    basic_istream& operator>>(ios_base& (*pf)(ios_base&));
-    basic_istream& operator>>(basic_streambuf<char_type, traits_type>* sb);
-    basic_istream& operator>>(bool& n);
-    basic_istream& operator>>(short& n);
-    basic_istream& operator>>(unsigned short& n);
-    basic_istream& operator>>(int& n);
-    basic_istream& operator>>(unsigned int& n);
-    basic_istream& operator>>(long& n);
-    basic_istream& operator>>(unsigned long& n);
-    basic_istream& operator>>(long long& n);
-    basic_istream& operator>>(unsigned long long& n);
-    basic_istream& operator>>(float& f);
-    basic_istream& operator>>(double& f);
-    basic_istream& operator>>(long double& f);
-    basic_istream& operator>>(void*& p);
-
-    // 27.7.1.3 Unformatted input:
-    streamsize gcount() const;
-    int_type get();
-    basic_istream& get(char_type& c);
-    basic_istream& get(char_type* s, streamsize n);
-    basic_istream& get(char_type* s, streamsize n, char_type delim);
-    basic_istream& get(basic_streambuf<char_type,traits_type>& sb);
-    basic_istream& get(basic_streambuf<char_type,traits_type>& sb, char_type delim);
-
-    basic_istream& getline(char_type* s, streamsize n);
-    basic_istream& getline(char_type* s, streamsize n, char_type delim);
-
-    basic_istream& ignore(streamsize n = 1, int_type delim = traits_type::eof());
-    int_type peek();
-    basic_istream& read (char_type* s, streamsize n);
-    streamsize readsome(char_type* s, streamsize n);
-
-    basic_istream& putback(char_type c);
-    basic_istream& unget();
-    int sync();
-
-    pos_type tellg();
-    basic_istream& seekg(pos_type);
-    basic_istream& seekg(off_type, ios_base::seekdir);
-protected:
-    basic_istream(const basic_istream& rhs) = delete;
-    basic_istream(basic_istream&& rhs);
-    // 27.7.2.1.2 Assign/swap:
-    basic_istream& operator=(const basic_istream& rhs) = delete;
-    basic_istream& operator=(basic_istream&& rhs);
-    void swap(basic_istream& rhs);
-};
-
-// 27.7.1.2.3 character extraction templates:
-template<class charT, class traits>
-  basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT&);
-
-template<class traits>
-  basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char&);
-
-template<class traits>
-  basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char&);
-
-template<class charT, class traits>
-  basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT*);
-
-template<class traits>
-  basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char*);
-
-template<class traits>
-  basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char*);
-
-template <class charT, class traits>
-  void
-  swap(basic_istream<charT, traits>& x, basic_istream<charT, traits>& y);
-
-typedef basic_istream<char> istream;
-typedef basic_istream<wchar_t> wistream;
-
-template <class charT, class traits = char_traits<charT> >
-class basic_iostream :
-    public basic_istream<charT,traits>,
-    public basic_ostream<charT,traits>
-{
-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;
-
-    // constructor/destructor
-    explicit basic_iostream(basic_streambuf<char_type, traits_type>* sb);
-    basic_iostream(basic_iostream&& rhs);
-    virtual ~basic_iostream();
-
-    // assign/swap
-    basic_iostream& operator=(basic_iostream&& rhs);
-    void swap(basic_iostream& rhs);
-};
-
-template <class charT, class traits>
-  void
-  swap(basic_iostream<charT, traits>& x, basic_iostream<charT, traits>& y);
-
-typedef basic_iostream<char> iostream;
-typedef basic_iostream<wchar_t> wiostream;
-
-template <class charT, class traits>
-  basic_istream<charT,traits>&
-  ws(basic_istream<charT,traits>& is);
-
-template <class charT, class traits, class T>
-  basic_istream<charT, traits>&
-  operator>>(basic_istream<charT, traits>&& is, T& x);
-
-}  // std
-
-*/
-
-#include <__config>
-#include <version>
-#include <ostream>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#pragma GCC system_header
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits>
-class _LIBCPP_TEMPLATE_VIS basic_istream
-    : virtual public basic_ios<_CharT, _Traits>
-{
-    streamsize __gc_;
-public:
-    // types (inherited from basic_ios (27.5.4)):
-    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;
-
-    // 27.7.1.1.1 Constructor/destructor:
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    explicit basic_istream(basic_streambuf<char_type, traits_type>* __sb) : __gc_(0)
-    { this->init(__sb); }
-    virtual ~basic_istream();
-protected:
-#ifndef _LIBCPP_CXX03_LANG
-    inline _LIBCPP_INLINE_VISIBILITY
-    basic_istream(basic_istream&& __rhs);
-
-    // 27.7.1.1.2 Assign/swap:
-    inline _LIBCPP_INLINE_VISIBILITY
-    basic_istream& operator=(basic_istream&& __rhs);
-#endif
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    void swap(basic_istream& __rhs) {
-      _VSTD::swap(__gc_, __rhs.__gc_);
-      basic_ios<char_type, traits_type>::swap(__rhs);
-    }
-
-#ifndef _LIBCPP_CXX03_LANG
-    basic_istream           (const basic_istream& __rhs) = delete;
-    basic_istream& operator=(const basic_istream& __rhs) = delete;
-#endif
-public:
-
-    // 27.7.1.1.3 Prefix/suffix:
-    class _LIBCPP_TEMPLATE_VIS sentry;
-
-    // 27.7.1.2 Formatted input:
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& operator>>(basic_istream& (*__pf)(basic_istream&))
-    { return __pf(*this); }
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& operator>>(basic_ios<char_type, traits_type>&
-                              (*__pf)(basic_ios<char_type, traits_type>&))
-    { __pf(*this); return *this; }
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& operator>>(ios_base& (*__pf)(ios_base&))
-    { __pf(*this); return *this; }
-
-    basic_istream& operator>>(basic_streambuf<char_type, traits_type>* __sb);
-    basic_istream& operator>>(bool& __n);
-    basic_istream& operator>>(short& __n);
-    basic_istream& operator>>(unsigned short& __n);
-    basic_istream& operator>>(int& __n);
-    basic_istream& operator>>(unsigned int& __n);
-    basic_istream& operator>>(long& __n);
-    basic_istream& operator>>(unsigned long& __n);
-    basic_istream& operator>>(long long& __n);
-    basic_istream& operator>>(unsigned long long& __n);
-    basic_istream& operator>>(float& __f);
-    basic_istream& operator>>(double& __f);
-    basic_istream& operator>>(long double& __f);
-    basic_istream& operator>>(void*& __p);
-
-    // 27.7.1.3 Unformatted input:
-    _LIBCPP_INLINE_VISIBILITY
-    streamsize gcount() const {return __gc_;}
-    int_type get();
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& get(char_type& __c) {
-      int_type __ch = get();
-      if (__ch != traits_type::eof())
-        __c = traits_type::to_char_type(__ch);
-      return *this;
-    }
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& get(char_type* __s, streamsize __n)
-    { return get(__s, __n, this->widen('\n')); }
-
-    basic_istream& get(char_type* __s, streamsize __n, char_type __dlm);
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& get(basic_streambuf<char_type, traits_type>& __sb)
-    { return get(__sb, this->widen('\n')); }
-
-    basic_istream& get(basic_streambuf<char_type, traits_type>& __sb, char_type __dlm);
-
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    basic_istream& getline(char_type* __s, streamsize __n)
-    { return getline(__s, __n, this->widen('\n')); }
-
-    basic_istream& getline(char_type* __s, streamsize __n, char_type __dlm);
-
-    basic_istream& ignore(streamsize __n = 1, int_type __dlm = traits_type::eof());
-    int_type peek();
-    basic_istream& read (char_type* __s, streamsize __n);
-    streamsize readsome(char_type* __s, streamsize __n);
-
-    basic_istream& putback(char_type __c);
-    basic_istream& unget();
-    int sync();
-
-    pos_type tellg();
-    basic_istream& seekg(pos_type __pos);
-    basic_istream& seekg(off_type __off, ios_base::seekdir __dir);
-};
-
-template <class _CharT, class _Traits>
-class _LIBCPP_TEMPLATE_VIS basic_istream<_CharT, _Traits>::sentry
-{
-    bool __ok_;
-
-    sentry(const sentry&); // = delete;
-    sentry& operator=(const sentry&); // = delete;
-
-public:
-    explicit sentry(basic_istream<_CharT, _Traits>& __is, bool __noskipws = false);
-//    ~sentry() = default;
-
-    _LIBCPP_INLINE_VISIBILITY
-        _LIBCPP_EXPLICIT
-        operator bool() const {return __ok_;}
-};
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>::sentry::sentry(basic_istream<_CharT, _Traits>& __is,
-                                               bool __noskipws)
-    : __ok_(false)
-{
-    if (__is.good())
-    {
-        if (__is.tie())
-            __is.tie()->flush();
-        if (!__noskipws && (__is.flags() & ios_base::skipws))
-        {
-            typedef istreambuf_iterator<_CharT, _Traits> _Ip;
-            const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
-            _Ip __i(__is);
-            _Ip __eof;
-            for (; __i != __eof; ++__i)
-                if (!__ct.is(__ct.space, *__i))
-                    break;
-            if (__i == __eof)
-                __is.setstate(ios_base::failbit | ios_base::eofbit);
-        }
-        __ok_ = __is.good();
-    }
-    else
-        __is.setstate(ios_base::failbit);
-}
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>::basic_istream(basic_istream&& __rhs)
-    : __gc_(__rhs.__gc_)
-{
-    __rhs.__gc_ = 0;
-    this->move(__rhs);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator=(basic_istream&& __rhs)
-{
-    swap(__rhs);
-    return *this;
-}
-
-#endif  // _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>::~basic_istream()
-{
-}
-
-template <class _Tp, class _CharT, class _Traits>
-_LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-__input_arithmetic(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __s(__is);
-        if (__s)
-        {
-            typedef istreambuf_iterator<_CharT, _Traits> _Ip;
-            typedef num_get<_CharT, _Ip> _Fp;
-            ios_base::iostate __err = ios_base::goodbit;
-            use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __err, __n);
-            __is.setstate(__err);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(unsigned short& __n)
-{
-    return _VSTD::__input_arithmetic<unsigned short>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(unsigned int& __n)
-{
-    return _VSTD::__input_arithmetic<unsigned int>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(long& __n)
-{
-    return _VSTD::__input_arithmetic<long>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(unsigned long& __n)
-{
-    return _VSTD::__input_arithmetic<unsigned long>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(long long& __n)
-{
-    return _VSTD::__input_arithmetic<long long>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(unsigned long long& __n)
-{
-    return _VSTD::__input_arithmetic<unsigned long long>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(float& __n)
-{
-    return _VSTD::__input_arithmetic<float>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(double& __n)
-{
-    return _VSTD::__input_arithmetic<double>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(long double& __n)
-{
-    return _VSTD::__input_arithmetic<long double>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(bool& __n)
-{
-    return _VSTD::__input_arithmetic<bool>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(void*& __n)
-{
-    return _VSTD::__input_arithmetic<void*>(*this, __n);
-}
-
-template <class _Tp, class _CharT, class _Traits>
-_LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-__input_arithmetic_with_numeric_limits(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __s(__is);
-        if (__s)
-        {
-            typedef istreambuf_iterator<_CharT, _Traits> _Ip;
-            typedef num_get<_CharT, _Ip> _Fp;
-            ios_base::iostate __err = ios_base::goodbit;
-            long __temp;
-            use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __err, __temp);
-            if (__temp < numeric_limits<_Tp>::min())
-            {
-                __err |= ios_base::failbit;
-                __n = numeric_limits<_Tp>::min();
-            }
-            else if (__temp > numeric_limits<_Tp>::max())
-            {
-                __err |= ios_base::failbit;
-                __n = numeric_limits<_Tp>::max();
-            }
-            else
-                __n = static_cast<_Tp>(__temp);
-            __is.setstate(__err);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(short& __n)
-{
-    return _VSTD::__input_arithmetic_with_numeric_limits<short>(*this, __n);
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(int& __n)
-{
-    return _VSTD::__input_arithmetic_with_numeric_limits<int>(*this, __n);
-}
-
-template<class _CharT, class _Traits>
-_LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-__input_c_string(basic_istream<_CharT, _Traits>& __is, _CharT* __p, size_t __n)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
-        if (__sen)
-        {
-            auto __s = __p;
-            const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
-            ios_base::iostate __err = ios_base::goodbit;
-            while (__s != __p + (__n-1))
-            {
-                typename _Traits::int_type __i = __is.rdbuf()->sgetc();
-                if (_Traits::eq_int_type(__i, _Traits::eof()))
-                {
-                   __err |= ios_base::eofbit;
-                   break;
-                }
-                _CharT __ch = _Traits::to_char_type(__i);
-                if (__ct.is(__ct.space, __ch))
-                    break;
-                *__s++ = __ch;
-                 __is.rdbuf()->sbumpc();
-            }
-            *__s = _CharT();
-            __is.width(0);
-            if (__s == __p)
-               __err |= ios_base::failbit;
-            __is.setstate(__err);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-#if _LIBCPP_STD_VER > 17
-
-template<class _CharT, class _Traits, size_t _Np>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>& __is, _CharT (&__buf)[_Np])
-{
-    auto __n = _Np;
-    if (__is.width() > 0)
-        __n = _VSTD::min(size_t(__is.width()), _Np);
-    return _VSTD::__input_c_string(__is, __buf, __n);
-}
-
-template<class _Traits, size_t _Np>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<char, _Traits>&
-operator>>(basic_istream<char, _Traits>& __is, unsigned char (&__buf)[_Np])
-{
-    return __is >> (char(&)[_Np])__buf;
-}
-
-template<class _Traits, size_t _Np>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<char, _Traits>&
-operator>>(basic_istream<char, _Traits>& __is, signed char (&__buf)[_Np])
-{
-    return __is >> (char(&)[_Np])__buf;
-}
-
-#else
-
-template<class _CharT, class _Traits>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>& __is, _CharT* __s)
-{
-    streamsize __n = __is.width();
-    if (__n <= 0)
-        __n = numeric_limits<streamsize>::max() / sizeof(_CharT) - 1;
-    return _VSTD::__input_c_string(__is, __s, size_t(__n));
-}
-
-template<class _Traits>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<char, _Traits>&
-operator>>(basic_istream<char, _Traits>& __is, unsigned char* __s)
-{
-    return __is >> (char*)__s;
-}
-
-template<class _Traits>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<char, _Traits>&
-operator>>(basic_istream<char, _Traits>& __is, signed char* __s)
-{
-    return __is >> (char*)__s;
-}
-
-#endif  // _LIBCPP_STD_VER > 17
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>& __is, _CharT& __c)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
-        if (__sen)
-        {
-            typename _Traits::int_type __i = __is.rdbuf()->sbumpc();
-            if (_Traits::eq_int_type(__i, _Traits::eof()))
-                __is.setstate(ios_base::eofbit | ios_base::failbit);
-            else
-                __c = _Traits::to_char_type(__i);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-template<class _Traits>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<char, _Traits>&
-operator>>(basic_istream<char, _Traits>& __is, unsigned char& __c)
-{
-    return __is >> (char&)__c;
-}
-
-template<class _Traits>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<char, _Traits>&
-operator>>(basic_istream<char, _Traits>& __is, signed char& __c)
-{
-    return __is >> (char&)__c;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::operator>>(basic_streambuf<char_type, traits_type>* __sb)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __s(*this, true);
-        if (__s)
-        {
-            if (__sb)
-            {
-#ifndef _LIBCPP_NO_EXCEPTIONS
-                try
-                {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-                    ios_base::iostate __err = ios_base::goodbit;
-                    while (true)
-                    {
-                        typename traits_type::int_type __i = this->rdbuf()->sgetc();
-                        if (traits_type::eq_int_type(__i, _Traits::eof()))
-                        {
-                           __err |= ios_base::eofbit;
-                           break;
-                        }
-                        if (traits_type::eq_int_type(
-                                __sb->sputc(traits_type::to_char_type(__i)),
-                                traits_type::eof()))
-                            break;
-                        ++__gc_;
-                        this->rdbuf()->sbumpc();
-                    }
-                    if (__gc_ == 0)
-                       __err |= ios_base::failbit;
-                    this->setstate(__err);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-                }
-                catch (...)
-                {
-                    if (__gc_ == 0)
-                        this->__set_failbit_and_consider_rethrow();
-                }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-            }
-            else
-                this->setstate(ios_base::failbit);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-typename basic_istream<_CharT, _Traits>::int_type
-basic_istream<_CharT, _Traits>::get()
-{
-    __gc_ = 0;
-    int_type __r = traits_type::eof();
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __s(*this, true);
-        if (__s)
-        {
-            __r = this->rdbuf()->sbumpc();
-            if (traits_type::eq_int_type(__r, traits_type::eof()))
-               this->setstate(ios_base::failbit | ios_base::eofbit);
-            else
-                __gc_ = 1;
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __r;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n, char_type __dlm)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            if (__n > 0)
-            {
-                ios_base::iostate __err = ios_base::goodbit;
-                while (__gc_ < __n-1)
-                {
-                    int_type __i = this->rdbuf()->sgetc();
-                    if (traits_type::eq_int_type(__i, traits_type::eof()))
-                    {
-                       __err |= ios_base::eofbit;
-                       break;
-                    }
-                    char_type __ch = traits_type::to_char_type(__i);
-                    if (traits_type::eq(__ch, __dlm))
-                        break;
-                    *__s++ = __ch;
-                    ++__gc_;
-                     this->rdbuf()->sbumpc();
-                }
-                if (__gc_ == 0)
-                   __err |= ios_base::failbit;
-                this->setstate(__err);
-            }
-            else
-                this->setstate(ios_base::failbit);
-        }
-        if (__n > 0)
-            *__s = char_type();
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        if (__n > 0)
-            *__s = char_type();
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::get(basic_streambuf<char_type, traits_type>& __sb,
-                                    char_type __dlm)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            ios_base::iostate __err = ios_base::goodbit;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-            try
-            {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-                while (true)
-                {
-                    typename traits_type::int_type __i = this->rdbuf()->sgetc();
-                    if (traits_type::eq_int_type(__i, traits_type::eof()))
-                    {
-                       __err |= ios_base::eofbit;
-                       break;
-                    }
-                    char_type __ch = traits_type::to_char_type(__i);
-                    if (traits_type::eq(__ch, __dlm))
-                        break;
-                    if (traits_type::eq_int_type(__sb.sputc(__ch), traits_type::eof()))
-                        break;
-                    ++__gc_;
-                    this->rdbuf()->sbumpc();
-                }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-            }
-            catch (...)
-            {
-            }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-            if (__gc_ == 0)
-               __err |= ios_base::failbit;
-            this->setstate(__err);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n, char_type __dlm)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            ios_base::iostate __err = ios_base::goodbit;
-            while (true)
-            {
-                typename traits_type::int_type __i = this->rdbuf()->sgetc();
-                if (traits_type::eq_int_type(__i, traits_type::eof()))
-                {
-                   __err |= ios_base::eofbit;
-                   break;
-                }
-                char_type __ch = traits_type::to_char_type(__i);
-                if (traits_type::eq(__ch, __dlm))
-                {
-                    this->rdbuf()->sbumpc();
-                    ++__gc_;
-                    break;
-                }
-                if (__gc_ >= __n-1)
-                {
-                    __err |= ios_base::failbit;
-                    break;
-                }
-                *__s++ = __ch;
-                this->rdbuf()->sbumpc();
-                ++__gc_;
-            }
-            if (__gc_ == 0)
-               __err |= ios_base::failbit;
-            this->setstate(__err);
-        }
-        if (__n > 0)
-            *__s = char_type();
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        if (__n > 0)
-            *__s = char_type();
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::ignore(streamsize __n, int_type __dlm)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            ios_base::iostate __err = ios_base::goodbit;
-            if (__n == numeric_limits<streamsize>::max())
-            {
-                while (true)
-                {
-                    typename traits_type::int_type __i = this->rdbuf()->sbumpc();
-                    if (traits_type::eq_int_type(__i, traits_type::eof()))
-                    {
-                       __err |= ios_base::eofbit;
-                       break;
-                    }
-                    ++__gc_;
-                    if (traits_type::eq_int_type(__i, __dlm))
-                        break;
-                }
-            }
-            else
-            {
-                while (__gc_ < __n)
-                {
-                    typename traits_type::int_type __i = this->rdbuf()->sbumpc();
-                    if (traits_type::eq_int_type(__i, traits_type::eof()))
-                    {
-                       __err |= ios_base::eofbit;
-                       break;
-                    }
-                    ++__gc_;
-                    if (traits_type::eq_int_type(__i, __dlm))
-                        break;
-                }
-            }
-            this->setstate(__err);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-typename basic_istream<_CharT, _Traits>::int_type
-basic_istream<_CharT, _Traits>::peek()
-{
-    __gc_ = 0;
-    int_type __r = traits_type::eof();
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            __r = this->rdbuf()->sgetc();
-            if (traits_type::eq_int_type(__r, traits_type::eof()))
-                this->setstate(ios_base::eofbit);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __r;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::read(char_type* __s, streamsize __n)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            __gc_ = this->rdbuf()->sgetn(__s, __n);
-            if (__gc_ != __n)
-                this->setstate(ios_base::failbit | ios_base::eofbit);
-        }
-        else
-            this->setstate(ios_base::failbit);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-streamsize
-basic_istream<_CharT, _Traits>::readsome(char_type* __s, streamsize __n)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            streamsize __c = this->rdbuf()->in_avail();
-            switch (__c)
-            {
-            case -1:
-                this->setstate(ios_base::eofbit);
-                break;
-            case 0:
-                break;
-            default:
-                read(__s, _VSTD::min(__c, __n));
-                break;
-            }
-        }
-        else
-            this->setstate(ios_base::failbit);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __gc_;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::putback(char_type __c)
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        this->clear(this->rdstate() & ~ios_base::eofbit);
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            if (this->rdbuf() == 0 || this->rdbuf()->sputbackc(__c) == traits_type::eof())
-                this->setstate(ios_base::badbit);
-        }
-        else
-            this->setstate(ios_base::failbit);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::unget()
-{
-    __gc_ = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        this->clear(this->rdstate() & ~ios_base::eofbit);
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            if (this->rdbuf() == 0 || this->rdbuf()->sungetc() == traits_type::eof())
-                this->setstate(ios_base::badbit);
-        }
-        else
-            this->setstate(ios_base::failbit);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-int
-basic_istream<_CharT, _Traits>::sync()
-{
-    int __r = 0;
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            if (this->rdbuf() == 0)
-                return -1;
-            if (this->rdbuf()->pubsync() == -1)
-            {
-                this->setstate(ios_base::badbit);
-                return -1;
-            }
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __r;
-}
-
-template<class _CharT, class _Traits>
-typename basic_istream<_CharT, _Traits>::pos_type
-basic_istream<_CharT, _Traits>::tellg()
-{
-    pos_type __r(-1);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        sentry __sen(*this, true);
-        if (__sen)
-            __r = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::in);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __r;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::seekg(pos_type __pos)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        this->clear(this->rdstate() & ~ios_base::eofbit);
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            if (this->rdbuf()->pubseekpos(__pos, ios_base::in) == pos_type(-1))
-                this->setstate(ios_base::failbit);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template<class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-basic_istream<_CharT, _Traits>::seekg(off_type __off, ios_base::seekdir __dir)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        this->clear(this->rdstate() & ~ios_base::eofbit);
-        sentry __sen(*this, true);
-        if (__sen)
-        {
-            if (this->rdbuf()->pubseekoff(__off, __dir, ios_base::in) == pos_type(-1))
-                this->setstate(ios_base::failbit);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        this->__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return *this;
-}
-
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>&
-ws(basic_istream<_CharT, _Traits>& __is)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
-        if (__sen)
-        {
-            const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
-            while (true)
-            {
-                typename _Traits::int_type __i = __is.rdbuf()->sgetc();
-                if (_Traits::eq_int_type(__i, _Traits::eof()))
-                {
-                   __is.setstate(ios_base::eofbit);
-                   break;
-                }
-                if (!__ct.is(__ct.space, _Traits::to_char_type(__i)))
-                    break;
-                __is.rdbuf()->sbumpc();
-            }
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits, class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp&& __x)
-{
-    __is >> _VSTD::forward<_Tp>(__x);
-    return __is;
-}
-
-#endif  // _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits>
-class _LIBCPP_TEMPLATE_VIS basic_iostream
-    : public basic_istream<_CharT, _Traits>,
-      public basic_ostream<_CharT, _Traits>
-{
-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;
-
-    // constructor/destructor
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    explicit basic_iostream(basic_streambuf<char_type, traits_type>* __sb)
-      : basic_istream<_CharT, _Traits>(__sb)
-    {}
-
-    virtual ~basic_iostream();
-protected:
-#ifndef _LIBCPP_CXX03_LANG
-    inline _LIBCPP_INLINE_VISIBILITY
-    basic_iostream(basic_iostream&& __rhs);
-
-    // assign/swap
-    inline _LIBCPP_INLINE_VISIBILITY
-    basic_iostream& operator=(basic_iostream&& __rhs);
-#endif
-    inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
-    void swap(basic_iostream& __rhs)
-    { basic_istream<char_type, traits_type>::swap(__rhs); }
-public:
-};
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits>
-basic_iostream<_CharT, _Traits>::basic_iostream(basic_iostream&& __rhs)
-    : basic_istream<_CharT, _Traits>(_VSTD::move(__rhs))
-{
-}
-
-template <class _CharT, class _Traits>
-basic_iostream<_CharT, _Traits>&
-basic_iostream<_CharT, _Traits>::operator=(basic_iostream&& __rhs)
-{
-    swap(__rhs);
-    return *this;
-}
-
-#endif  // _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits>
-basic_iostream<_CharT, _Traits>::~basic_iostream()
-{
-}
-
-template<class _CharT, class _Traits, class _Allocator>
-basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>& __is,
-           basic_string<_CharT, _Traits, _Allocator>& __str)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
-        if (__sen)
-        {
-            __str.clear();
-            streamsize __n = __is.width();
-            if (__n <= 0)
-                __n = __str.max_size();
-            if (__n <= 0)
-                __n = numeric_limits<streamsize>::max();
-            streamsize __c = 0;
-            const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
-            ios_base::iostate __err = ios_base::goodbit;
-            while (__c < __n)
-            {
-                typename _Traits::int_type __i = __is.rdbuf()->sgetc();
-                if (_Traits::eq_int_type(__i, _Traits::eof()))
-                {
-                   __err |= ios_base::eofbit;
-                   break;
-                }
-                _CharT __ch = _Traits::to_char_type(__i);
-                if (__ct.is(__ct.space, __ch))
-                    break;
-                __str.push_back(__ch);
-                ++__c;
-                 __is.rdbuf()->sbumpc();
-            }
-            __is.width(0);
-            if (__c == 0)
-               __err |= ios_base::failbit;
-            __is.setstate(__err);
-        }
-        else
-            __is.setstate(ios_base::failbit);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-template<class _CharT, class _Traits, class _Allocator>
-basic_istream<_CharT, _Traits>&
-getline(basic_istream<_CharT, _Traits>& __is,
-        basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
-        if (__sen)
-        {
-            __str.clear();
-            ios_base::iostate __err = ios_base::goodbit;
-            streamsize __extr = 0;
-            while (true)
-            {
-                typename _Traits::int_type __i = __is.rdbuf()->sbumpc();
-                if (_Traits::eq_int_type(__i, _Traits::eof()))
-                {
-                   __err |= ios_base::eofbit;
-                   break;
-                }
-                ++__extr;
-                _CharT __ch = _Traits::to_char_type(__i);
-                if (_Traits::eq(__ch, __dlm))
-                    break;
-                __str.push_back(__ch);
-                if (__str.size() == __str.max_size())
-                {
-                    __err |= ios_base::failbit;
-                    break;
-                }
-            }
-            if (__extr == 0)
-               __err |= ios_base::failbit;
-            __is.setstate(__err);
-        }
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-template<class _CharT, class _Traits, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-getline(basic_istream<_CharT, _Traits>& __is,
-        basic_string<_CharT, _Traits, _Allocator>& __str)
-{
-    return getline(__is, __str, __is.widen('\n'));
-}
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template<class _CharT, class _Traits, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-getline(basic_istream<_CharT, _Traits>&& __is,
-        basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
-{
-    return getline(__is, __str, __dlm);
-}
-
-template<class _CharT, class _Traits, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
-basic_istream<_CharT, _Traits>&
-getline(basic_istream<_CharT, _Traits>&& __is,
-        basic_string<_CharT, _Traits, _Allocator>& __str)
-{
-    return getline(__is, __str, __is.widen('\n'));
-}
-
-#endif  // _LIBCPP_CXX03_LANG
-
-template <class _CharT, class _Traits, size_t _Size>
-basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x)
-{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    try
-    {
-#endif  // _LIBCPP_NO_EXCEPTIONS
-        typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
-        if (__sen)
-        {
-            basic_string<_CharT, _Traits> __str;
-            const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
-            size_t __c = 0;
-            ios_base::iostate __err = ios_base::goodbit;
-            _CharT __zero = __ct.widen('0');
-            _CharT __one = __ct.widen('1');
-            while (__c < _Size)
-            {
-                typename _Traits::int_type __i = __is.rdbuf()->sgetc();
-                if (_Traits::eq_int_type(__i, _Traits::eof()))
-                {
-                   __err |= ios_base::eofbit;
-                   break;
-                }
-                _CharT __ch = _Traits::to_char_type(__i);
-                if (!_Traits::eq(__ch, __zero) && !_Traits::eq(__ch, __one))
-                    break;
-                __str.push_back(__ch);
-                ++__c;
-                 __is.rdbuf()->sbumpc();
-            }
-            __x = bitset<_Size>(__str);
-            if (__c == 0)
-               __err |= ios_base::failbit;
-            __is.setstate(__err);
-        }
-        else
-            __is.setstate(ios_base::failbit);
-#ifndef _LIBCPP_NO_EXCEPTIONS
-    }
-    catch (...)
-    {
-        __is.__set_badbit_and_consider_rethrow();
-    }
-#endif  // _LIBCPP_NO_EXCEPTIONS
-    return __is;
-}
-
-#ifndef _LIBCPP_DO_NOT_ASSUME_STREAMS_EXPLICIT_INSTANTIATION_IN_DYLIB
-_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istream<char>)
-_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istream<wchar_t>)
-_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_iostream<char>)
-#endif
-
-_LIBCPP_END_NAMESPACE_STD
-
-_LIBCPP_POP_MACROS
-
-#endif  // _LIBCPP_ISTREAM