LCOM1920-T02G10

// -*- C++ -*-

//===---------------------------- ios -------------------------------------===//

//

//                     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_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;

    typedef typename traits::pos_type pos_type;

    typedef typename traits::off_type off_type;

    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_STD

typedef ptrdiff_t streamsize;

class _LIBCPP_TYPE_VIS ios_base

{

public:

    class _LIBCPP_TYPE_VIS 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;

    typedef iostate      io_state;

    static const iostate badbit  = 0x1;

    static const iostate eofbit  = 0x2;

    static const iostate failbit = 0x4;

    static const iostate goodbit = 0x0;

    typedef unsigned int openmode;

    typedef openmode     open_mode;

    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};

    typedef seekdir seek_dir;

    typedef _VSTD::streamoff streamoff;

    typedef _VSTD::streampos streampos;

    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_TYPE_VIS_ONLY is_error_code_enum<io_errc> : public true_type { };

#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS

template <>

struct _LIBCPP_TYPE_VIS_ONLY is_error_code_enum<io_errc::__lx> : public true_type { };

#endif

_LIBCPP_FUNC_VIS

const error_category& iostream_category() _NOEXCEPT;

inline _LIBCPP_INLINE_VISIBILITY

error_code

make_error_code(io_errc __e) _NOEXCEPT

{

    return error_code(static_cast<int>(__e), iostream_category());

}

inline _LIBCPP_INLINE_VISIBILITY

error_condition

make_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();

};

// fmtflags

inline _LIBCPP_INLINE_VISIBILITY

ios_base::fmtflags

ios_base::flags() const

{

    return __fmtflags_;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base::fmtflags

ios_base::flags(fmtflags __fmtfl)

{

    fmtflags __r = __fmtflags_;

    __fmtflags_ = __fmtfl;

    return __r;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base::fmtflags

ios_base::setf(fmtflags __fmtfl)

{

    fmtflags __r = __fmtflags_;

    __fmtflags_ |= __fmtfl;

    return __r;

}

inline _LIBCPP_INLINE_VISIBILITY

void

ios_base::unsetf(fmtflags __mask)

{

    __fmtflags_ &= ~__mask;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base::fmtflags

ios_base::setf(fmtflags __fmtfl, fmtflags __mask)

{

    fmtflags __r = __fmtflags_;

    unsetf(__mask);

    __fmtflags_ |= __fmtfl & __mask;

    return __r;

}

// precision

inline _LIBCPP_INLINE_VISIBILITY

streamsize

ios_base::precision() const

{

    return __precision_;

}

inline _LIBCPP_INLINE_VISIBILITY

streamsize

ios_base::precision(streamsize __prec)

{

    streamsize __r = __precision_;

    __precision_ = __prec;

    return __r;

}

// width

inline _LIBCPP_INLINE_VISIBILITY

streamsize

ios_base::width() const

{

    return __width_;

}

inline _LIBCPP_INLINE_VISIBILITY

streamsize

ios_base::width(streamsize __wide)

{

    streamsize __r = __width_;

    __width_ = __wide;

    return __r;

}

// iostate

inline _LIBCPP_INLINE_VISIBILITY

ios_base::iostate

ios_base::rdstate() const

{

    return __rdstate_;

}

inline _LIBCPP_INLINE_VISIBILITY

void

ios_base::setstate(iostate __state)

{

    clear(__rdstate_ | __state);

}

inline _LIBCPP_INLINE_VISIBILITY

bool

ios_base::good() const

{

    return __rdstate_ == 0;

}

inline _LIBCPP_INLINE_VISIBILITY

bool

ios_base::eof() const

{

    return (__rdstate_ & eofbit) != 0;

}

inline _LIBCPP_INLINE_VISIBILITY

bool

ios_base::fail() const

{

    return (__rdstate_ & (failbit | badbit)) != 0;

}

inline _LIBCPP_INLINE_VISIBILITY

bool

ios_base::bad() const

{

    return (__rdstate_ & badbit) != 0;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base::iostate

ios_base::exceptions() const

{

    return __exceptions_;

}

inline _LIBCPP_INLINE_VISIBILITY

void

ios_base::exceptions(iostate __iostate)

{

    __exceptions_ = __iostate;

    clear(__rdstate_);

}

template <class _CharT, class _Traits>

class _LIBCPP_TYPE_VIS_ONLY 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;

    _LIBCPP_ALWAYS_INLINE

        _LIBCPP_EXPLICIT

        operator bool() const {return !fail();}

    _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_HAS_NO_RVALUE_REFERENCES

    _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_VISIBILITY

basic_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_VISIBILITY

void

basic_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_VISIBILITY

basic_ostream<_CharT, _Traits>*

basic_ios<_CharT, _Traits>::tie() const

{

    return __tie_;

}

template <class _CharT, class _Traits>

inline _LIBCPP_INLINE_VISIBILITY

basic_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_VISIBILITY

basic_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_VISIBILITY

basic_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_VISIBILITY

locale

basic_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_VISIBILITY

char

basic_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

_CharT

basic_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

_CharT

basic_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

_CharT

basic_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_VISIBILITY

void

basic_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_VISIBILITY

void

basic_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_VISIBILITY

void

basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb)

{

    ios_base::set_rdbuf(__sb);

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

boolalpha(ios_base& __str)

{

    __str.setf(ios_base::boolalpha);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

noboolalpha(ios_base& __str)

{

    __str.unsetf(ios_base::boolalpha);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

showbase(ios_base& __str)

{

    __str.setf(ios_base::showbase);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

noshowbase(ios_base& __str)

{

    __str.unsetf(ios_base::showbase);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

showpoint(ios_base& __str)

{

    __str.setf(ios_base::showpoint);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

noshowpoint(ios_base& __str)

{

    __str.unsetf(ios_base::showpoint);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

showpos(ios_base& __str)

{

    __str.setf(ios_base::showpos);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

noshowpos(ios_base& __str)

{

    __str.unsetf(ios_base::showpos);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

skipws(ios_base& __str)

{

    __str.setf(ios_base::skipws);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

noskipws(ios_base& __str)

{

    __str.unsetf(ios_base::skipws);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

uppercase(ios_base& __str)

{

    __str.setf(ios_base::uppercase);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

nouppercase(ios_base& __str)

{

    __str.unsetf(ios_base::uppercase);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

unitbuf(ios_base& __str)

{

    __str.setf(ios_base::unitbuf);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

nounitbuf(ios_base& __str)

{

    __str.unsetf(ios_base::unitbuf);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

internal(ios_base& __str)

{

    __str.setf(ios_base::internal, ios_base::adjustfield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

left(ios_base& __str)

{

    __str.setf(ios_base::left, ios_base::adjustfield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

right(ios_base& __str)

{

    __str.setf(ios_base::right, ios_base::adjustfield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

dec(ios_base& __str)

{

    __str.setf(ios_base::dec, ios_base::basefield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

hex(ios_base& __str)

{

    __str.setf(ios_base::hex, ios_base::basefield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

oct(ios_base& __str)

{

    __str.setf(ios_base::oct, ios_base::basefield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

fixed(ios_base& __str)

{

    __str.setf(ios_base::fixed, ios_base::floatfield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

scientific(ios_base& __str)

{

    __str.setf(ios_base::scientific, ios_base::floatfield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_base&

hexfloat(ios_base& __str)

{

    __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);

    return __str;

}

inline _LIBCPP_INLINE_VISIBILITY

ios_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