Cider Isn't Darwin Emulation, Really
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See LICENSE.TXT for details.////===----------------------------------------------------------------------===//#ifndef _LIBCPP_IOS#define _LIBCPP_IOS/* ios synopsis#include <iosfwd>namespace std{typedef OFF_T streamoff;typedef SZ_T streamsize;template <class stateT> class fpos;class ios_base{public: class failure; typedef T1 fmtflags; static constexpr fmtflags boolalpha; static constexpr fmtflags dec; static constexpr fmtflags fixed; static constexpr fmtflags hex; static constexpr fmtflags internal; static constexpr fmtflags left; static constexpr fmtflags oct; static constexpr fmtflags right; static constexpr fmtflags scientific; static constexpr fmtflags showbase; static constexpr fmtflags showpoint; static constexpr fmtflags showpos; static constexpr fmtflags skipws; static constexpr fmtflags unitbuf; static constexpr fmtflags uppercase; static constexpr fmtflags adjustfield; static constexpr fmtflags basefield; static constexpr fmtflags floatfield; typedef T2 iostate; static constexpr iostate badbit; static constexpr iostate eofbit; static constexpr iostate failbit; static constexpr iostate goodbit; typedef T3 openmode; static constexpr openmode app; static constexpr openmode ate; static constexpr openmode binary; static constexpr openmode in; static constexpr openmode out; static constexpr openmode trunc; typedef T4 seekdir; static constexpr seekdir beg; static constexpr seekdir cur; static constexpr seekdir end; class Init; // 27.5.2.2 fmtflags state: fmtflags flags() const; fmtflags flags(fmtflags fmtfl); fmtflags setf(fmtflags fmtfl); fmtflags setf(fmtflags fmtfl, fmtflags mask); void unsetf(fmtflags mask); streamsize precision() const; streamsize precision(streamsize prec); streamsize width() const; streamsize width(streamsize wide); // 27.5.2.3 locales: locale imbue(const locale& loc); locale getloc() const; // 27.5.2.5 storage: static int xalloc(); long& iword(int index); void*& pword(int index); // destructor virtual ~ios_base(); // 27.5.2.6 callbacks; enum event { erase_event, imbue_event, copyfmt_event }; typedef void (*event_callback)(event, ios_base&, int index); void register_callback(event_callback fn, int index); ios_base(const ios_base&) = delete; ios_base& operator=(const ios_base&) = delete; static bool sync_with_stdio(bool sync = true);protected: ios_base();};template <class charT, class traits = char_traits<charT> >class basic_ios : public ios_base{public: // types: typedef charT char_type; typedef typename traits::int_type int_type; // removed in C++17 typedef typename traits::pos_type pos_type; // removed in C++17 typedef typename traits::off_type off_type; // removed in C++17 typedef traits traits_type; operator unspecified-bool-type() const; bool operator!() const; iostate rdstate() const; void clear(iostate state = goodbit); void setstate(iostate state); bool good() const; bool eof() const; bool fail() const; bool bad() const; iostate exceptions() const; void exceptions(iostate except); // 27.5.4.1 Constructor/destructor: explicit basic_ios(basic_streambuf<charT,traits>* sb); virtual ~basic_ios(); // 27.5.4.2 Members: basic_ostream<charT,traits>* tie() const; basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr); basic_streambuf<charT,traits>* rdbuf() const; basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb); basic_ios& copyfmt(const basic_ios& rhs); char_type fill() const; char_type fill(char_type ch); locale imbue(const locale& loc); char narrow(char_type c, char dfault) const; char_type widen(char c) const; basic_ios(const basic_ios& ) = delete; basic_ios& operator=(const basic_ios&) = delete;protected: basic_ios(); void init(basic_streambuf<charT,traits>* sb); void move(basic_ios& rhs); void swap(basic_ios& rhs) noexcept; void set_rdbuf(basic_streambuf<charT, traits>* sb);};// 27.5.5, manipulators:ios_base& boolalpha (ios_base& str);ios_base& noboolalpha(ios_base& str);ios_base& showbase (ios_base& str);ios_base& noshowbase (ios_base& str);ios_base& showpoint (ios_base& str);ios_base& noshowpoint(ios_base& str);ios_base& showpos (ios_base& str);ios_base& noshowpos (ios_base& str);ios_base& skipws (ios_base& str);ios_base& noskipws (ios_base& str);ios_base& uppercase (ios_base& str);ios_base& nouppercase(ios_base& str);ios_base& unitbuf (ios_base& str);ios_base& nounitbuf (ios_base& str);// 27.5.5.2 adjustfield:ios_base& internal (ios_base& str);ios_base& left (ios_base& str);ios_base& right (ios_base& str);// 27.5.5.3 basefield:ios_base& dec (ios_base& str);ios_base& hex (ios_base& str);ios_base& oct (ios_base& str);// 27.5.5.4 floatfield:ios_base& fixed (ios_base& str);ios_base& scientific (ios_base& str);ios_base& hexfloat (ios_base& str);ios_base& defaultfloat(ios_base& str);// 27.5.5.5 error reporting:enum class io_errc{ stream = 1};concept_map ErrorCodeEnum<io_errc> { };error_code make_error_code(io_errc e) noexcept; error_condition make_error_condition(io_errc e) noexcept; storage-class-specifier const error_category& iostream_category() noexcept;} // std*/#include <__config>#include <iosfwd>#include <__locale>#include <system_error>#if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER)#include <atomic> // for __xindex_#endif#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)#pragma GCC system_header#endif_LIBCPP_BEGIN_NAMESPACE_STDtypedef ptrdiff_t streamsize;class _LIBCPP_TYPE_VIS ios_base{public: class _LIBCPP_EXCEPTION_ABI failure; typedef unsigned int fmtflags; static const fmtflags boolalpha = 0x0001; static const fmtflags dec = 0x0002; static const fmtflags fixed = 0x0004; static const fmtflags hex = 0x0008; static const fmtflags internal = 0x0010; static const fmtflags left = 0x0020; static const fmtflags oct = 0x0040; static const fmtflags right = 0x0080; static const fmtflags scientific = 0x0100; static const fmtflags showbase = 0x0200; static const fmtflags showpoint = 0x0400; static const fmtflags showpos = 0x0800; static const fmtflags skipws = 0x1000; static const fmtflags unitbuf = 0x2000; static const fmtflags uppercase = 0x4000; static const fmtflags adjustfield = left | right | internal; static const fmtflags basefield = dec | oct | hex; static const fmtflags floatfield = scientific | fixed; typedef unsigned int iostate; static const iostate badbit = 0x1; static const iostate eofbit = 0x2; static const iostate failbit = 0x4; static const iostate goodbit = 0x0; typedef unsigned int openmode; static const openmode app = 0x01; static const openmode ate = 0x02; static const openmode binary = 0x04; static const openmode in = 0x08; static const openmode out = 0x10; static const openmode trunc = 0x20; enum seekdir {beg, cur, end};#if _LIBCPP_STD_VER <= 14 typedef iostate io_state; typedef openmode open_mode; typedef seekdir seek_dir; typedef _VSTD::streamoff streamoff; typedef _VSTD::streampos streampos;#endif class _LIBCPP_TYPE_VIS Init; // 27.5.2.2 fmtflags state: _LIBCPP_INLINE_VISIBILITY fmtflags flags() const; _LIBCPP_INLINE_VISIBILITY fmtflags flags(fmtflags __fmtfl); _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl); _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl, fmtflags __mask); _LIBCPP_INLINE_VISIBILITY void unsetf(fmtflags __mask); _LIBCPP_INLINE_VISIBILITY streamsize precision() const; _LIBCPP_INLINE_VISIBILITY streamsize precision(streamsize __prec); _LIBCPP_INLINE_VISIBILITY streamsize width() const; _LIBCPP_INLINE_VISIBILITY streamsize width(streamsize __wide); // 27.5.2.3 locales: locale imbue(const locale& __loc); locale getloc() const; // 27.5.2.5 storage: static int xalloc(); long& iword(int __index); void*& pword(int __index); // destructor virtual ~ios_base(); // 27.5.2.6 callbacks; enum event { erase_event, imbue_event, copyfmt_event }; typedef void (*event_callback)(event, ios_base&, int __index); void register_callback(event_callback __fn, int __index);private: ios_base(const ios_base&); // = delete; ios_base& operator=(const ios_base&); // = delete;public: static bool sync_with_stdio(bool __sync = true); _LIBCPP_INLINE_VISIBILITY iostate rdstate() const; void clear(iostate __state = goodbit); _LIBCPP_INLINE_VISIBILITY void setstate(iostate __state); _LIBCPP_INLINE_VISIBILITY bool good() const; _LIBCPP_INLINE_VISIBILITY bool eof() const; _LIBCPP_INLINE_VISIBILITY bool fail() const; _LIBCPP_INLINE_VISIBILITY bool bad() const; _LIBCPP_INLINE_VISIBILITY iostate exceptions() const; _LIBCPP_INLINE_VISIBILITY void exceptions(iostate __iostate); void __set_badbit_and_consider_rethrow(); void __set_failbit_and_consider_rethrow();protected: _LIBCPP_INLINE_VISIBILITY ios_base() {// purposefully does no initialization } void init(void* __sb); _LIBCPP_ALWAYS_INLINE void* rdbuf() const {return __rdbuf_;} _LIBCPP_ALWAYS_INLINE void rdbuf(void* __sb) { __rdbuf_ = __sb; clear(); } void __call_callbacks(event); void copyfmt(const ios_base&); void move(ios_base&); void swap(ios_base&) _NOEXCEPT; _LIBCPP_ALWAYS_INLINE void set_rdbuf(void* __sb) { __rdbuf_ = __sb; }private: // All data members must be scalars fmtflags __fmtflags_; streamsize __precision_; streamsize __width_; iostate __rdstate_; iostate __exceptions_; void* __rdbuf_; void* __loc_; event_callback* __fn_; int* __index_; size_t __event_size_; size_t __event_cap_;// TODO(EricWF): Enable this for both Clang and GCC. Currently it is only// enabled with clang.#if defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_NO_THREADS) static atomic<int> __xindex_;#else static int __xindex_;#endif long* __iarray_; size_t __iarray_size_; size_t __iarray_cap_; void** __parray_; size_t __parray_size_; size_t __parray_cap_;};//enum class io_errc_LIBCPP_DECLARE_STRONG_ENUM(io_errc){ stream = 1};_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc)template <>struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc> : public true_type { };#ifdef _LIBCPP_HAS_NO_STRONG_ENUMStemplate <>struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc::__lx> : public true_type { };#endif_LIBCPP_FUNC_VISconst error_category& iostream_category() _NOEXCEPT;inline _LIBCPP_INLINE_VISIBILITYerror_codemake_error_code(io_errc __e) _NOEXCEPT{ return error_code(static_cast<int>(__e), iostream_category());}inline _LIBCPP_INLINE_VISIBILITYerror_conditionmake_error_condition(io_errc __e) _NOEXCEPT{ return error_condition(static_cast<int>(__e), iostream_category());}class _LIBCPP_EXCEPTION_ABI ios_base::failure : public system_error{public: explicit failure(const string& __msg, const error_code& __ec = io_errc::stream); explicit failure(const char* __msg, const error_code& __ec = io_errc::stream); virtual ~failure() throw();};class _LIBCPP_TYPE_VIS ios_base::Init{public: Init(); ~Init();};// fmtflagsinline _LIBCPP_INLINE_VISIBILITYios_base::fmtflagsios_base::flags() const{ return __fmtflags_;}inline _LIBCPP_INLINE_VISIBILITYios_base::fmtflagsios_base::flags(fmtflags __fmtfl){ fmtflags __r = __fmtflags_; __fmtflags_ = __fmtfl; return __r;}inline _LIBCPP_INLINE_VISIBILITYios_base::fmtflagsios_base::setf(fmtflags __fmtfl){ fmtflags __r = __fmtflags_; __fmtflags_ |= __fmtfl; return __r;}inline _LIBCPP_INLINE_VISIBILITYvoidios_base::unsetf(fmtflags __mask){ __fmtflags_ &= ~__mask;}inline _LIBCPP_INLINE_VISIBILITYios_base::fmtflagsios_base::setf(fmtflags __fmtfl, fmtflags __mask){ fmtflags __r = __fmtflags_; unsetf(__mask); __fmtflags_ |= __fmtfl & __mask; return __r;}// precisioninline _LIBCPP_INLINE_VISIBILITYstreamsizeios_base::precision() const{ return __precision_;}inline _LIBCPP_INLINE_VISIBILITYstreamsizeios_base::precision(streamsize __prec){ streamsize __r = __precision_; __precision_ = __prec; return __r;}// widthinline _LIBCPP_INLINE_VISIBILITYstreamsizeios_base::width() const{ return __width_;}inline _LIBCPP_INLINE_VISIBILITYstreamsizeios_base::width(streamsize __wide){ streamsize __r = __width_; __width_ = __wide; return __r;}// iostateinline _LIBCPP_INLINE_VISIBILITYios_base::iostateios_base::rdstate() const{ return __rdstate_;}inline _LIBCPP_INLINE_VISIBILITYvoidios_base::setstate(iostate __state){ clear(__rdstate_ | __state);}inline _LIBCPP_INLINE_VISIBILITYboolios_base::good() const{ return __rdstate_ == 0;}inline _LIBCPP_INLINE_VISIBILITYboolios_base::eof() const{ return (__rdstate_ & eofbit) != 0;}inline _LIBCPP_INLINE_VISIBILITYboolios_base::fail() const{ return (__rdstate_ & (failbit | badbit)) != 0;}inline _LIBCPP_INLINE_VISIBILITYboolios_base::bad() const{ return (__rdstate_ & badbit) != 0;}inline _LIBCPP_INLINE_VISIBILITYios_base::iostateios_base::exceptions() const{ return __exceptions_;}inline _LIBCPP_INLINE_VISIBILITYvoidios_base::exceptions(iostate __iostate){ __exceptions_ = __iostate; clear(__rdstate_);}#if defined(_LIBCPP_CXX03_LANG)struct _LIBCPP_TYPE_VIS __cxx03_bool { typedef void (__cxx03_bool::*__bool_type)(); void __true_value() {}};#endiftemplate <class _CharT, class _Traits>class _LIBCPP_TEMPLATE_VIS basic_ios : public ios_base{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; // __true_value will generate undefined references when linking unless // we give it internal linkage.#if defined(_LIBCPP_CXX03_LANG) _LIBCPP_ALWAYS_INLINE operator __cxx03_bool::__bool_type() const { return !fail() ? &__cxx03_bool::__true_value : nullptr; }#else _LIBCPP_ALWAYS_INLINE _LIBCPP_EXPLICIT operator bool() const {return !fail();}#endif _LIBCPP_ALWAYS_INLINE bool operator!() const {return fail();} _LIBCPP_ALWAYS_INLINE iostate rdstate() const {return ios_base::rdstate();} _LIBCPP_ALWAYS_INLINE void clear(iostate __state = goodbit) {ios_base::clear(__state);} _LIBCPP_ALWAYS_INLINE void setstate(iostate __state) {ios_base::setstate(__state);} _LIBCPP_ALWAYS_INLINE bool good() const {return ios_base::good();} _LIBCPP_ALWAYS_INLINE bool eof() const {return ios_base::eof();} _LIBCPP_ALWAYS_INLINE bool fail() const {return ios_base::fail();} _LIBCPP_ALWAYS_INLINE bool bad() const {return ios_base::bad();} _LIBCPP_ALWAYS_INLINE iostate exceptions() const {return ios_base::exceptions();} _LIBCPP_ALWAYS_INLINE void exceptions(iostate __iostate) {ios_base::exceptions(__iostate);} // 27.5.4.1 Constructor/destructor: _LIBCPP_INLINE_VISIBILITY explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb); virtual ~basic_ios(); // 27.5.4.2 Members: _LIBCPP_INLINE_VISIBILITY basic_ostream<char_type, traits_type>* tie() const; _LIBCPP_INLINE_VISIBILITY basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr); _LIBCPP_INLINE_VISIBILITY basic_streambuf<char_type, traits_type>* rdbuf() const; _LIBCPP_INLINE_VISIBILITY basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb); basic_ios& copyfmt(const basic_ios& __rhs); _LIBCPP_INLINE_VISIBILITY char_type fill() const; _LIBCPP_INLINE_VISIBILITY char_type fill(char_type __ch); _LIBCPP_INLINE_VISIBILITY locale imbue(const locale& __loc); _LIBCPP_INLINE_VISIBILITY char narrow(char_type __c, char __dfault) const; _LIBCPP_INLINE_VISIBILITY char_type widen(char __c) const;protected: _LIBCPP_ALWAYS_INLINE basic_ios() {// purposefully does no initialization } _LIBCPP_INLINE_VISIBILITY void init(basic_streambuf<char_type, traits_type>* __sb); _LIBCPP_INLINE_VISIBILITY void move(basic_ios& __rhs);#ifndef _LIBCPP_CXX03_LANG _LIBCPP_ALWAYS_INLINE void move(basic_ios&& __rhs) {move(__rhs);}#endif _LIBCPP_INLINE_VISIBILITY void swap(basic_ios& __rhs) _NOEXCEPT; _LIBCPP_INLINE_VISIBILITY void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);private: basic_ostream<char_type, traits_type>* __tie_; mutable int_type __fill_;};template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYbasic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb){ init(__sb);}template <class _CharT, class _Traits>basic_ios<_CharT, _Traits>::~basic_ios(){}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYvoidbasic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb){ ios_base::init(__sb); __tie_ = 0; __fill_ = traits_type::eof();}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYbasic_ostream<_CharT, _Traits>*basic_ios<_CharT, _Traits>::tie() const{ return __tie_;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYbasic_ostream<_CharT, _Traits>*basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr){ basic_ostream<char_type, traits_type>* __r = __tie_; __tie_ = __tiestr; return __r;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYbasic_streambuf<_CharT, _Traits>*basic_ios<_CharT, _Traits>::rdbuf() const{ return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYbasic_streambuf<_CharT, _Traits>*basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb){ basic_streambuf<char_type, traits_type>* __r = rdbuf(); ios_base::rdbuf(__sb); return __r;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYlocalebasic_ios<_CharT, _Traits>::imbue(const locale& __loc){ locale __r = getloc(); ios_base::imbue(__loc); if (rdbuf()) rdbuf()->pubimbue(__loc); return __r;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYcharbasic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const{ return use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITY_CharTbasic_ios<_CharT, _Traits>::widen(char __c) const{ return use_facet<ctype<char_type> >(getloc()).widen(__c);}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITY_CharTbasic_ios<_CharT, _Traits>::fill() const{ if (traits_type::eq_int_type(traits_type::eof(), __fill_)) __fill_ = widen(' '); return __fill_;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITY_CharTbasic_ios<_CharT, _Traits>::fill(char_type __ch){ char_type __r = __fill_; __fill_ = __ch; return __r;}template <class _CharT, class _Traits>basic_ios<_CharT, _Traits>&basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs){ if (this != &__rhs) { __call_callbacks(erase_event); ios_base::copyfmt(__rhs); __tie_ = __rhs.__tie_; __fill_ = __rhs.__fill_; __call_callbacks(copyfmt_event); exceptions(__rhs.exceptions()); } return *this;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYvoidbasic_ios<_CharT, _Traits>::move(basic_ios& __rhs){ ios_base::move(__rhs); __tie_ = __rhs.__tie_; __rhs.__tie_ = 0; __fill_ = __rhs.__fill_;}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYvoidbasic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT{ ios_base::swap(__rhs); _VSTD::swap(__tie_, __rhs.__tie_); _VSTD::swap(__fill_, __rhs.__fill_);}template <class _CharT, class _Traits>inline _LIBCPP_INLINE_VISIBILITYvoidbasic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb){ ios_base::set_rdbuf(__sb);}inline _LIBCPP_INLINE_VISIBILITYios_base&boolalpha(ios_base& __str){ __str.setf(ios_base::boolalpha); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&noboolalpha(ios_base& __str){ __str.unsetf(ios_base::boolalpha); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&showbase(ios_base& __str){ __str.setf(ios_base::showbase); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&noshowbase(ios_base& __str){ __str.unsetf(ios_base::showbase); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&showpoint(ios_base& __str){ __str.setf(ios_base::showpoint); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&noshowpoint(ios_base& __str){ __str.unsetf(ios_base::showpoint); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&showpos(ios_base& __str){ __str.setf(ios_base::showpos); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&noshowpos(ios_base& __str){ __str.unsetf(ios_base::showpos); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&skipws(ios_base& __str){ __str.setf(ios_base::skipws); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&noskipws(ios_base& __str){ __str.unsetf(ios_base::skipws); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&uppercase(ios_base& __str){ __str.setf(ios_base::uppercase); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&nouppercase(ios_base& __str){ __str.unsetf(ios_base::uppercase); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&unitbuf(ios_base& __str){ __str.setf(ios_base::unitbuf); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&nounitbuf(ios_base& __str){ __str.unsetf(ios_base::unitbuf); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&internal(ios_base& __str){ __str.setf(ios_base::internal, ios_base::adjustfield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&left(ios_base& __str){ __str.setf(ios_base::left, ios_base::adjustfield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&right(ios_base& __str){ __str.setf(ios_base::right, ios_base::adjustfield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&dec(ios_base& __str){ __str.setf(ios_base::dec, ios_base::basefield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&hex(ios_base& __str){ __str.setf(ios_base::hex, ios_base::basefield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&oct(ios_base& __str){ __str.setf(ios_base::oct, ios_base::basefield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&fixed(ios_base& __str){ __str.setf(ios_base::fixed, ios_base::floatfield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&scientific(ios_base& __str){ __str.setf(ios_base::scientific, ios_base::floatfield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&hexfloat(ios_base& __str){ __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield); return __str;}inline _LIBCPP_INLINE_VISIBILITYios_base&defaultfloat(ios_base& __str){ __str.unsetf(ios_base::floatfield); return __str;}template <class _CharT, class _Traits>class __save_flags{ typedef basic_ios<_CharT, _Traits> __stream_type; typedef typename __stream_type::fmtflags fmtflags; __stream_type& __stream_; fmtflags __fmtflags_; _CharT __fill_; __save_flags(const __save_flags&); __save_flags& operator=(const __save_flags&);public: _LIBCPP_INLINE_VISIBILITY explicit __save_flags(__stream_type& __stream) : __stream_(__stream), __fmtflags_(__stream.flags()), __fill_(__stream.fill()) {} _LIBCPP_INLINE_VISIBILITY ~__save_flags() { __stream_.flags(__fmtflags_); __stream_.fill(__fill_); }};_LIBCPP_END_NAMESPACE_STD#endif // _LIBCPP_IOS