ios_base

// Iostreams base classes -*- C++ -*-

// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
// 2006, 2007, 2008, 2009, 2010
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/ios_base.h
*  This is an internal header file, included by other library headers.
*  Do not attempt to use it directly. @headername{ios}
*/

//
// ISO C++ 14882: 27.4  Iostreams base classes
//

#ifndef _IOS_BASE_H
#define _IOS_BASE_H 1

#pragma GCC system_header

#include <ext/atomicity.h>
#include <bits/localefwd.h>
#include <bits/locale_classes.h>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

// The following definitions of bitmask types are enums, not ints,
// as permitted (but not required) in the standard, in order to provide
// better type safety in iostream calls.  A side effect is that
// expressions involving them are no longer compile-time constants.
enum _Ios_Fmtflags
{
_S_boolalpha 	= 1L << 0,
_S_dec 		= 1L << 1,
_S_fixed 		= 1L << 2,
_S_hex 		= 1L << 3,
_S_internal 	= 1L << 4,
_S_left 		= 1L << 5,
_S_oct 		= 1L << 6,
_S_right 		= 1L << 7,
_S_scientific 	= 1L << 8,
_S_showbase 	= 1L << 9,
_S_showpoint 	= 1L << 10,
_S_showpos 	= 1L << 11,
_S_skipws 	= 1L << 12,
_S_unitbuf 	= 1L << 13,
_S_uppercase 	= 1L << 14,
_S_adjustfield 	= _S_left | _S_right | _S_internal,
_S_basefield 	= _S_dec | _S_oct | _S_hex,
_S_floatfield 	= _S_scientific | _S_fixed,
_S_ios_fmtflags_end = 1L << 16
};

inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
{ return _Ios_Fmtflags(static_cast<int>(__a) & static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
operator|(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
{ return _Ios_Fmtflags(static_cast<int>(__a) | static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
{ return _Ios_Fmtflags(static_cast<int>(__a) ^ static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
operator~(_Ios_Fmtflags __a)
{ return _Ios_Fmtflags(~static_cast<int>(__a)); }

inline const _Ios_Fmtflags&
operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
{ return __a = __a | __b; }

inline const _Ios_Fmtflags&
operator&=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
{ return __a = __a & __b; }

inline const _Ios_Fmtflags&
operator^=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
{ return __a = __a ^ __b; }

enum _Ios_Openmode
{
_S_app 		= 1L << 0,
_S_ate 		= 1L << 1,
_S_bin 		= 1L << 2,
_S_in 		= 1L << 3,
_S_out 		= 1L << 4,
_S_trunc 		= 1L << 5,
_S_ios_openmode_end = 1L << 16
};

inline _GLIBCXX_CONSTEXPR _Ios_Openmode
operator&(_Ios_Openmode __a, _Ios_Openmode __b)
{ return _Ios_Openmode(static_cast<int>(__a) & static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Openmode
operator|(_Ios_Openmode __a, _Ios_Openmode __b)
{ return _Ios_Openmode(static_cast<int>(__a) | static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Openmode
operator^(_Ios_Openmode __a, _Ios_Openmode __b)
{ return _Ios_Openmode(static_cast<int>(__a) ^ static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Openmode
operator~(_Ios_Openmode __a)
{ return _Ios_Openmode(~static_cast<int>(__a)); }

inline const _Ios_Openmode&
operator|=(_Ios_Openmode& __a, _Ios_Openmode __b)
{ return __a = __a | __b; }

inline const _Ios_Openmode&
operator&=(_Ios_Openmode& __a, _Ios_Openmode __b)
{ return __a = __a & __b; }

inline const _Ios_Openmode&
operator^=(_Ios_Openmode& __a, _Ios_Openmode __b)
{ return __a = __a ^ __b; }

enum _Ios_Iostate
{
_S_goodbit 		= 0,
_S_badbit 		= 1L << 0,
_S_eofbit 		= 1L << 1,
_S_failbit		= 1L << 2,
_S_ios_iostate_end = 1L << 16
};

inline _GLIBCXX_CONSTEXPR _Ios_Iostate
operator&(_Ios_Iostate __a, _Ios_Iostate __b)
{ return _Ios_Iostate(static_cast<int>(__a) & static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Iostate
operator|(_Ios_Iostate __a, _Ios_Iostate __b)
{ return _Ios_Iostate(static_cast<int>(__a) | static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Iostate
operator^(_Ios_Iostate __a, _Ios_Iostate __b)
{ return _Ios_Iostate(static_cast<int>(__a) ^ static_cast<int>(__b)); }

inline _GLIBCXX_CONSTEXPR _Ios_Iostate
operator~(_Ios_Iostate __a)
{ return _Ios_Iostate(~static_cast<int>(__a)); }

inline const _Ios_Iostate&
operator|=(_Ios_Iostate& __a, _Ios_Iostate __b)
{ return __a = __a | __b; }

inline const _Ios_Iostate&
operator&=(_Ios_Iostate& __a, _Ios_Iostate __b)
{ return __a = __a & __b; }

inline const  _Ios_Iostate&
operator^=(_Ios_Iostate& __a, _Ios_Iostate __b)
{ return __a = __a ^ __b; }

enum _Ios_Seekdir
{
_S_beg = 0,
_S_cur = _GLIBCXX_STDIO_SEEK_CUR,
_S_end = _GLIBCXX_STDIO_SEEK_END,
_S_ios_seekdir_end = 1L << 16
};

// 27.4.2  Class ios_base
/**
*  @brief  The base of the I/O class hierarchy.
*  @ingroup io
*
*  This class defines everything that can be defined about I/O that does
*  not depend on the type of characters being input or output.  Most
*  people will only see @c ios_base when they need to specify the full
*  name of the various I/O flags (e.g., the openmodes).
*/
class ios_base
{
public:

/**
*  @brief These are thrown to indicate problems with io.
*  @ingroup exceptions
*
*  27.4.2.1.1  Class ios_base::failure
*/
class failure : public exception
{
public:
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 48.  Use of non-existent exception constructor
explicit
failure(const string& __str) throw();

// This declaration is not useless:
// http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Vague-Linkage.html virtual
~failure() throw();

virtual const char*
what() const throw();

private:
string _M_msg;
};

// 27.4.2.1.2  Type ios_base::fmtflags
/**
*  @brief This is a bitmask type.
*
*  @c @a _Ios_Fmtflags is implementation-defined, but it is valid to
*  perform bitwise operations on these values and expect the Right
*  Thing to happen.  Defined objects of type fmtflags are:
*  - boolalpha
*  - dec
*  - fixed
*  - hex
*  - internal
*  - left
*  - oct
*  - right
*  - scientific
*  - showbase
*  - showpoint
*  - showpos
*  - skipws
*  - unitbuf
*  - uppercase
*  - adjustfield
*  - basefield
*  - floatfield
*/
typedef _Ios_Fmtflags fmtflags;

/// Insert/extract @c bool in alphabetic rather than numeric format.
static const fmtflags boolalpha =   _S_boolalpha;

/// Converts integer input or generates integer output in decimal base.
static const fmtflags dec =         _S_dec;

/// Generate floating-point output in fixed-point notation.
static const fmtflags fixed =       _S_fixed;

/// Converts integer input or generates integer output in hexadecimal base.
static const fmtflags hex =         _S_hex;

/// Adds fill characters at a d
4000
esignated internal point in certain
/// generated output, or identical to @c right if no such point is
/// designated.
static const fmtflags internal =    _S_internal;

/// Adds fill characters on the right (final positions) of certain
/// generated output.  (I.e., the thing you print is flush left.)
static const fmtflags left =        _S_left;

/// Converts integer input or generates integer output in octal base.
static const fmtflags oct =         _S_oct;

/// Adds fill characters on the left (initial positions) of certain
/// generated output.  (I.e., the thing you print is flush right.)
static const fmtflags right =       _S_right;

/// Generates floating-point output in scientific notation.
static const fmtflags scientific =  _S_scientific;

/// Generates a prefix indicating the numeric base of generated integer
/// output.
static const fmtflags showbase =    _S_showbase;

/// Generates a decimal-point character unconditionally in generated
/// floating-point output.
static const fmtflags showpoint =   _S_showpoint;

/// Generates a + sign in non-negative generated numeric output.
static const fmtflags showpos =     _S_showpos;

/// Skips leading white space before certain input operations.
static const fmtflags skipws =      _S_skipws;

/// Flushes output after each output operation.
static const fmtflags unitbuf =     _S_unitbuf;

/// Replaces certain lowercase letters with their uppercase equivalents
/// in generated output.
static const fmtflags uppercase =   _S_uppercase;

/// A mask of left|right|internal.  Useful for the 2-arg form of @c setf.
static const fmtflags adjustfield = _S_adjustfield;

/// A mask of dec|oct|hex.  Useful for the 2-arg form of @c setf.
static const fmtflags basefield =   _S_basefield;

/// A mask of scientific|fixed.  Useful for the 2-arg form of @c setf.
static const fmtflags floatfield =  _S_floatfield;

// 27.4.2.1.3  Type ios_base::iostate
/**
*  @brief This is a bitmask type.
*
*  @c @a _Ios_Iostate is implementation-defined, but it is valid to
*  perform bitwise operations on these values and expect the Right
*  Thing to happen.  Defined objects of type iostate are:
*  - badbit
*  - eofbit
*  - failbit
*  - goodbit
*/
typedef _Ios_Iostate iostate;

/// Indicates a loss of integrity in an input or output sequence (such
/// as an irrecoverable read error from a file).
static const iostate badbit =	_S_badbit;

/// Indicates that an input operation reached the end of an input sequence.
static const iostate eofbit =	_S_eofbit;

/// Indicates that an input operation failed to read the expected
/// characters, or that an output operation failed to generate the
/// desired characters.
static const iostate failbit =	_S_failbit;

/// Indicates all is well.
static const iostate goodbit =	_S_goodbit;

// 27.4.2.1.4  Type ios_base::openmode
/**
*  @brief This is a bitmask type.
*
*  @c @a _Ios_Openmode is implementation-defined, but it is valid to
*  perform bitwise operations on these values and expect the Right
*  Thing to happen.  Defined objects of type openmode are:
*  - app
*  - ate
*  - binary
*  - in
*  - out
*  - trunc
*/
typedef _Ios_Openmode openmode;

/// Seek to end before each write.
static const openmode app =		_S_app;

/// Open and seek to end immediately after opening.
static const openmode ate =		_S_ate;

/// Perform input and output in binary mode (as opposed to text mode).
/// This is probably not what you think it is; see
/// http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch27s02.html static const openmode binary =	_S_bin;

/// Open for input.  Default for @c ifstream and fstream.
static const openmode in =		_S_in;

/// Open for output.  Default for @c ofstream and fstream.
static const openmode out =		_S_out;

/// Open for input.  Default for @c ofstream.
static const openmode trunc =	_S_trunc;

// 27.4.2.1.5  Type ios_base::seekdir
/**
*  @brief This is an enumerated type.
*
*  @c @a _Ios_Seekdir is implementation-defined.  Defined values
*  of type seekdir are:
*  - beg
*  - cur, equivalent to @c SEEK_CUR in the C standard library.
*  - end, equivalent to @c SEEK_END in the C standard library.
*/
typedef _Ios_Seekdir seekdir;

/// Request a seek relative to the beginning of the stream.
static const seekdir beg =		_S_beg;

/// Request a seek relative to the current position within the sequence.
static const seekdir cur =		_S_cur;

/// Request a seek relative to the current end of the sequence.
static const seekdir end =		_S_end;

// Annex D.6
typedef int io_state;
typedef int open_mode;
typedef int seek_dir;

typedef std::streampos streampos;
typedef std::streamoff streamoff;

// Callbacks;
/**
*  @brief  The set of events that may be passed to an event callback.
*
*  erase_event is used during ~ios() and copyfmt().  imbue_event is used
*  during imbue().  copyfmt_event is used during copyfmt().
*/
enum event
{
erase_event,
imbue_event,
copyfmt_event
};

/**
*  @brief  The type of an event callback function.
*  @param  event  One of the members of the event enum.
*  @param  ios_base  Reference to the ios_base object.
*  @param  int  The integer provided when the callback was registered.
*
*  Event callbacks are user defined functions that get called during
*  several ios_base and basic_ios functions, specifically imbue(),
*  copyfmt(), and ~ios().
*/
typedef void (*event_callback) (event, ios_base&, int);

/**
*  @brief  Add the callback __fn with parameter __index.
*  @param  __fn  The function to add.
*  @param  __index  The integer to pass to the function when invoked.
*
*  Registers a function as an event callback with an integer parameter to
*  be passed to the function when invoked.  Multiple copies of the
*  function are allowed.  If there are multiple callbacks, they are
*  invoked in the order they were registered.
*/
void
register_callback(event_callback __fn, int __index);

protected:
streamsize		_M_precision;
streamsize		_M_width;
fmtflags		_M_flags;
iostate		_M_exception;
iostate		_M_streambuf_state;

// 27.4.2.6  Members for callbacks
// 27.4.2.6  ios_base callbacks
struct _Callback_list
{
// Data Members
_Callback_list*		_M_next;
ios_base::event_callback	_M_fn;
int			_M_index;
_Atomic_word		_M_refcount;  // 0 means one reference.

_Callback_list(ios_base::event_callback __fn, int __index,
_Callback_list* __cb)
: _M_next(__cb), _M_fn(__fn), _M_index(__index), _M_refcount(0) { }

void
_M_add_reference() { __gnu_cxx::__atomic_add_dispatch(&_M_refcount, 1); }

// 0 => OK to delete.
int
_M_remove_reference()
{
// Be race-detector-friendly.  For more info see bits/c++config.
_GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&_M_refcount);
int __res = __gnu_cxx::__exchange_and_add_dispatch(&_M_refcount, -1);
if (__res == 0)
{
_GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&_M_refcount);
}
return __res;
}
};

_Callback_list*	_M_callbacks;

void
_M_call_callbacks(event __ev) throw();

void
_M_dispose_callbacks(void) throw();

// 27.4.2.5  Members for iword/pword storage
struct _Words
{
void*	_M_pword;
long	_M_iword;
_Words() : _M_pword(0), _M_iword(0) { }
};

// Only for failed iword/pword calls.
_Words		_M_word_zero;

// Guaranteed storage.
// The first 5 iword and pword slots are reserved for internal use.
enum { _S_local_word_size = 8 };
_Words		_M_local_word[_S_local_word_size];

// Allocated storage.
int			_M_word_size;
_Words*		_M_word;

_Words&
_M_grow_words(int __index, bool __iword);

// Members for locale and locale caching.
locale		_M_ios_locale;

void
_M_init() throw();

public:

// 27.4.2.1.6  Class ios_base::Init
// Used to initialize standard streams. In theory, g++ could use
// -finit-priority to order this stuff correctly without going
// through these machinations.
class Init
{
friend class ios_base;
public:
Init();
~Init();

private:
static _Atomic_word	_S_refcount;
static bool		_S_synced_with_stdio;
};

// [27.4.2.2] fmtflags state functions
/**
*  @brief  Access to format flags.
*  @return  The format control flags for both input and output.
*/
fmtflags
flags() const
{ return _M_flags; }

/**
*  @brief  Setting new format flags all at once.
*  @param  fmtfl  The new flags to set.
*  @return  The previous format control flags.
*
*  This function overwrites all the format flags with @a fmtfl.
*/
fmtflags
flags(fmtflags __fmtfl)
{
fmtflags __old = _M_flags;
_M_flags = __fmtfl;
return __old;
}

/**
*  @brief  Setting new format flags.
*  @param  fmtfl  Additional flags to set.
*  @return  The previous format control flags.
*
*  This function sets additional flags in format control.  Flags that
*  were previously set remain set.
*/
fmtflags
setf(fmtflags __fmtfl)
{
fmtflags __old = _M_flags;
_M_flags |= __fmtfl;
return __old;
}

/**
*  @brief  Setting new format flags.
*  @param  fmtfl  Additional flags to set.
*  @param  mask  The flags mask for @a fmtfl.
*  @return  The previous format control flags.
*
*  This function clears @a mask in the format flags, then sets
*  @a fmtfl @c & @a mask.  An example mask is @c ios_base::adjustfield.
*/
fmtflags
setf(fmtflags __fmtfl, fmtflags __mask)
{
fmtflags __old = _M_flags;
_M_flags &= ~__mask;
_M_flags |= (__fmtfl & __mask);
return __old;
}

/**
*  @brief  Clearing format flags.
*  @param  mask  The flags to unset.
*
*  This function clears @a mask in the format flags.
*/
void
unsetf(fmtflags __mask)
{ _M_flags &= ~__mask; }

/**
*  @brief  Flags access.
*  @return  The precision to generate on certain output operations.
*
*  Be careful if you try to give a definition of @a precision here; see
*  DR 189.
*/
streamsize
precision() const
{ return _M_precision; }

/**
*  @brief  Changing flags.
*  @param  prec  The new precision value.
*  @return  The previous value of precision().
*/
streamsize
precision(streamsize __prec)
{
streamsize __old = _M_precision;
_M_precision = __prec;
return __old;
}

/**
*  @brief  Flags access.
*  @return  The minimum field width to generate on output operations.
*
*  <em>Minimum field width</em> refers to the number of characters.
*/
streamsize
width() const
{ return _M_width; }

/**
*  @brief  Changing flags.
*  @param  wide  The new width value.
*  @return  The previous value of width().
*/
streamsize
width(streamsize __wide)
{
streamsize __old = _M_width;
_M_width = __wide;
return __old;
}

// [27.4.2.4] ios_base static members
/**
*  @brief  Interaction with the standard C I/O objects.
*  @param  sync  Whether to synchronize or not.
*  @return  True if the standard streams were previously synchronized.
*
*  The synchronization referred to is @e only that between the standard
*  C facilities (e.g., stdout) and the standard C++ objects (e.g.,
*  cout).  User-declared streams are unaffected.  See
*  http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch28s02.html */
static bool
sync_with_stdio(bool __sync = true);

// [27.4.2.3] ios_base locale functions
/**
*  @brief  Setting a new locale.
*  @param  loc  The new locale.
*  @return  The previous locale.
*
*  Sets the new locale for this stream, and then invokes each callback
*  with imbue_event.
*/
locale
imbue(const locale& __loc) throw();

/**
*  @brief  Locale access
*  @return  A copy of the current locale.
*
*  If @c imbue(loc) has previously been called, then this function
*  returns @c loc.  Otherwise, it returns a copy of @c std::locale(),
*  the global C++ locale.
*/
locale
getloc() const
{ return _M_ios_locale; }

/**
*  @brief  Locale access
*  @return  A reference to the current locale.
*
*  Like getloc above, but returns a reference instead of
*  generating a copy.
*/
const locale&
_M_getloc() const
{ return _M_ios_locale; }

// [27.4.2.5] ios_base storage functions
/**
*  @brief  Access to unique indices.
*  @return  An integer different from all previous calls.
*
*  This function returns a unique integer every time it is called.  It
*  can be used for any purpose, but is primarily intended to be a unique
*  index for the iword and pword functions.  The expectation is that an
*  application calls xalloc in order to obtain an index in the iword and
*  pword arrays that can be used without fear of conflict.
*
*  The implementation maintains a static variable that is incremented and
*  returned on each invocation.  xalloc is guaranteed to return an index
*  that is safe to use in the iword and pword arrays.
*/
static int
xalloc() throw();

/**
*  @brief  Access to integer array.
*  @param  __ix  Index into the array.
*  @return  A reference to an integer associated with the index.
*
*  The iword function provides access to an array of integers that can be
*  used for any purpose.  The array grows as required to hold the
*  supplied index.  All integers in the array are initialized to 0.
*
*  The implementation reserves several indices.  You should use xalloc to
*  obtain an index that is safe to use.  Also note that since the array
*  can grow dynamically, it is not safe to hold onto the reference.
*/
long&
iword(int __ix)
{
_Words& __word = (__ix < _M_word_size)
? _M_word[__ix] : _M_grow_words(__ix, true);
return __word._M_iword;
}

/**
*  @brief  Access to void pointer array.
*  @param  __ix  Index into the array.
*  @return  A reference to a void* associated with the index.
*
*  The pword function provides access to an array of pointers that can be
*  used for any purpose.  The array grows as required to hold the
*  supplied index.  All pointers in the array are initialized to 0.
*
*  The implementation reserves several indices.  You should use xalloc to
*  obtain an index that is safe to use.  Also note that since the array
*  can grow dynamically, it is not safe to hold onto the reference.
*/
void*&
pword(int __ix)
{
_Words& __word = (__ix < _M_word_size)
? _M_word[__ix] : _M_grow_words(__ix, false);
return __word._M_pword;
}

// Destructor
/**
*  Invokes each callback with erase_event.  Destroys local storage.
*
*  Note that the ios_base object for the standard streams never gets
*  destroyed.  As a result, any callbacks registered with the standard
*  streams will not get invoked with erase_event (unless copyfmt is
*  used).
*/
virtual ~ios_base();

protected:
ios_base() throw ();

// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 50.  Copy constructor and assignment operator of ios_base
private:
ios_base(const ios_base&);

ios_base&
operator=(const ios_base&
aa86
amp;);
};

// [27.4.5.1] fmtflags manipulators
/// Calls base.setf(ios_base::boolalpha).
inline ios_base&
boolalpha(ios_base& __base)
{
__base.setf(ios_base::boolalpha);
return __base;
}

/// Calls base.unsetf(ios_base::boolalpha).
inline ios_base&
noboolalpha(ios_base& __base)
{
__base.unsetf(ios_base::boolalpha);
return __base;
}

/// Calls base.setf(ios_base::showbase).
inline ios_base&
showbase(ios_base& __base)
{
__base.setf(ios_base::showbase);
return __base;
}

/// Calls base.unsetf(ios_base::showbase).
inline ios_base&
noshowbase(ios_base& __base)
{
__base.unsetf(ios_base::showbase);
return __base;
}

/// Calls base.setf(ios_base::showpoint).
inline ios_base&
showpoint(ios_base& __base)
{
__base.setf(ios_base::showpoint);
return __base;
}

/// Calls base.unsetf(ios_base::showpoint).
inline ios_base&
noshowpoint(ios_base& __base)
{
__base.unsetf(ios_base::showpoint);
return __base;
}

/// Calls base.setf(ios_base::showpos).
inline ios_base&
showpos(ios_base& __base)
{
__base.setf(ios_base::showpos);
return __base;
}

/// Calls base.unsetf(ios_base::showpos).
inline ios_base&
noshowpos(ios_base& __base)
{
__base.unsetf(ios_base::showpos);
return __base;
}

/// Calls base.setf(ios_base::skipws).
inline ios_base&
skipws(ios_base& __base)
{
__base.setf(ios_base::skipws);
return __base;
}

/// Calls base.unsetf(ios_base::skipws).
inline ios_base&
noskipws(ios_base& __base)
{
__base.unsetf(ios_base::skipws);
return __base;
}

/// Calls base.setf(ios_base::uppercase).
inline ios_base&
uppercase(ios_base& __base)
{
__base.setf(ios_base::uppercase);
return __base;
}

/// Calls base.unsetf(ios_base::uppercase).
inline ios_base&
nouppercase(ios_base& __base)
{
__base.unsetf(ios_base::uppercase);
return __base;
}

/// Calls base.setf(ios_base::unitbuf).
inline ios_base&
unitbuf(ios_base& __base)
{
__base.setf(ios_base::unitbuf);
return __base;
}

/// Calls base.unsetf(ios_base::unitbuf).
inline ios_base&
nounitbuf(ios_base& __base)
{
__base.unsetf(ios_base::unitbuf);
return __base;
}

// [27.4.5.2] adjustfield manipulators
/// Calls base.setf(ios_base::internal, ios_base::adjustfield).
inline ios_base&
internal(ios_base& __base)
{
__base.setf(ios_base::internal, ios_base::adjustfield);
return __base;
}

/// Calls base.setf(ios_base::left, ios_base::adjustfield).
inline ios_base&
left(ios_base& __base)
{
__base.setf(ios_base::left, ios_base::adjustfield);
return __base;
}

/// Calls base.setf(ios_base::right, ios_base::adjustfield).
inline ios_base&
right(ios_base& __base)
{
__base.setf(ios_base::right, ios_base::adjustfield);
return __base;
}

// [27.4.5.3] basefield manipulators
/// Calls base.setf(ios_base::dec, ios_base::basefield).
inline ios_base&
dec(ios_base& __base)
{
__base.setf(ios_base::dec, ios_base::basefield);
return __base;
}

/// Calls base.setf(ios_base::hex, ios_base::basefield).
inline ios_base&
hex(ios_base& __base)
{
__base.setf(ios_base::hex, ios_base::basefield);
return __base;
}

/// Calls base.setf(ios_base::oct, ios_base::basefield).
inline ios_base&
oct(ios_base& __base)
{
__base.setf(ios_base::oct, ios_base::basefield);
return __base;
}

// [27.4.5.4] floatfield manipulators
/// Calls base.setf(ios_base::fixed, ios_base::floatfield).
inline ios_base&
fixed(ios_base& __base)
{
__base.setf(ios_base::fixed, ios_base::floatfield);
return __base;
}

/// Calls base.setf(ios_base::scientific, ios_base::floatfield).
inline ios_base&
scientific(ios_base& __base)
{
__base.setf(ios_base::scientific, ios_base::floatfield);
return __base;
}

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif /* _IOS_BASE_H */