#include <ios>
#include <ostream>
#include <istream>
#include <fstream>
#include <bits/atomicity.h>
#include <ext/stdio_filebuf.h>
#ifdef _GLIBCPP_HAVE_UNISTD_H
#include <unistd.h>
#endif
namespace __gnu_cxx
{
extern stdio_filebuf<char> buf_cout;
extern stdio_filebuf<char> buf_cin;
extern stdio_filebuf<char> buf_cerr;
#ifdef _GLIBCPP_USE_WCHAR_T
extern stdio_filebuf<wchar_t> buf_wcout;
extern stdio_filebuf<wchar_t> buf_wcin;
extern stdio_filebuf<wchar_t> buf_wcerr;
#endif
}
namespace std
{
using namespace __gnu_cxx;
extern istream cin;
extern ostream cout;
extern ostream cerr;
extern ostream clog;
#ifdef _GLIBCPP_USE_WCHAR_T
extern wistream wcin;
extern wostream wcout;
extern wostream wcerr;
extern wostream wclog;
#endif
const __ios_flags::__int_type __ios_flags::_S_boolalpha;
const __ios_flags::__int_type __ios_flags::_S_dec;
const __ios_flags::__int_type __ios_flags::_S_fixed;
const __ios_flags::__int_type __ios_flags::_S_hex;
const __ios_flags::__int_type __ios_flags::_S_internal;
const __ios_flags::__int_type __ios_flags::_S_left;
const __ios_flags::__int_type __ios_flags::_S_oct;
const __ios_flags::__int_type __ios_flags::_S_right;
const __ios_flags::__int_type __ios_flags::_S_scientific;
const __ios_flags::__int_type __ios_flags::_S_showbase;
const __ios_flags::__int_type __ios_flags::_S_showpoint;
const __ios_flags::__int_type __ios_flags::_S_showpos;
const __ios_flags::__int_type __ios_flags::_S_skipws;
const __ios_flags::__int_type __ios_flags::_S_unitbuf;
const __ios_flags::__int_type __ios_flags::_S_uppercase;
const __ios_flags::__int_type __ios_flags::_S_adjustfield;
const __ios_flags::__int_type __ios_flags::_S_basefield;
const __ios_flags::__int_type __ios_flags::_S_floatfield;
const __ios_flags::__int_type __ios_flags::_S_badbit;
const __ios_flags::__int_type __ios_flags::_S_eofbit;
const __ios_flags::__int_type __ios_flags::_S_failbit;
const __ios_flags::__int_type __ios_flags::_S_app;
const __ios_flags::__int_type __ios_flags::_S_ate;
const __ios_flags::__int_type __ios_flags::_S_bin;
const __ios_flags::__int_type __ios_flags::_S_in;
const __ios_flags::__int_type __ios_flags::_S_out;
const __ios_flags::__int_type __ios_flags::_S_trunc;
const ios_base::fmtflags ios_base::boolalpha;
const ios_base::fmtflags ios_base::dec;
const ios_base::fmtflags ios_base::fixed;
const ios_base::fmtflags ios_base::hex;
const ios_base::fmtflags ios_base::internal;
const ios_base::fmtflags ios_base::left;
const ios_base::fmtflags ios_base::oct;
const ios_base::fmtflags ios_base::right;
const ios_base::fmtflags ios_base::scientific;
const ios_base::fmtflags ios_base::showbase;
const ios_base::fmtflags ios_base::showpoint;
const ios_base::fmtflags ios_base::showpos;
const ios_base::fmtflags ios_base::skipws;
const ios_base::fmtflags ios_base::unitbuf;
const ios_base::fmtflags ios_base::uppercase;
const ios_base::fmtflags ios_base::adjustfield;
const ios_base::fmtflags ios_base::basefield;
const ios_base::fmtflags ios_base::floatfield;
const ios_base::iostate ios_base::badbit;
const ios_base::iostate ios_base::eofbit;
const ios_base::iostate ios_base::failbit;
const ios_base::iostate ios_base::goodbit;
const ios_base::openmode ios_base::app;
const ios_base::openmode ios_base::ate;
const ios_base::openmode ios_base::binary;
const ios_base::openmode ios_base::in;
const ios_base::openmode ios_base::out;
const ios_base::openmode ios_base::trunc;
const ios_base::seekdir ios_base::beg;
const ios_base::seekdir ios_base::cur;
const ios_base::seekdir ios_base::end;
const int ios_base::_S_local_word_size;
int ios_base::Init::_S_ios_base_init = 0;
bool ios_base::Init::_S_synced_with_stdio = true;
ios_base::failure::failure(const string& __str) throw()
{
strncpy(_M_name, __str.c_str(), _M_bufsize);
_M_name[_M_bufsize - 1] = '\0';
}
ios_base::failure::~failure() throw()
{ }
const char*
ios_base::failure::what() const throw()
{ return _M_name; }
void
ios_base::Init::_S_ios_create(bool __sync)
{
size_t __out_size = __sync ? 0 : static_cast<size_t>(BUFSIZ);
#ifdef _GLIBCPP_HAVE_ISATTY
size_t __in_size =
(__sync || isatty (0)) ? 1 : static_cast<size_t>(BUFSIZ);
#else
size_t __in_size = 1;
#endif
new (&buf_cout) stdio_filebuf<char>(stdout, ios_base::out, __out_size);
new (&buf_cin) stdio_filebuf<char>(stdin, ios_base::in, __in_size);
new (&buf_cerr) stdio_filebuf<char>(stderr, ios_base::out, __out_size);
new (&cout) ostream(&buf_cout);
new (&cin) istream(&buf_cin);
new (&cerr) ostream(&buf_cerr);
new (&clog) ostream(&buf_cerr);
cin.tie(&cout);
cerr.flags(ios_base::unitbuf);
#ifdef _GLIBCPP_USE_WCHAR_T
new (&buf_wcout) stdio_filebuf<wchar_t>(stdout, ios_base::out, __out_size);
new (&buf_wcin) stdio_filebuf<wchar_t>(stdin, ios_base::in, __in_size);
new (&buf_wcerr) stdio_filebuf<wchar_t>(stderr, ios_base::out, __out_size);
new (&wcout) wostream(&buf_wcout);
new (&wcin) wistream(&buf_wcin);
new (&wcerr) wostream(&buf_wcerr);
new (&wclog) wostream(&buf_wcerr);
wcin.tie(&wcout);
wcerr.flags(ios_base::unitbuf);
#endif
}
void
ios_base::Init::_S_ios_destroy()
{
buf_cout.~stdio_filebuf();
buf_cin.~stdio_filebuf();
buf_cerr.~stdio_filebuf();
#ifdef _GLIBCPP_USE_WCHAR_T
buf_wcout.~stdio_filebuf();
buf_wcin.~stdio_filebuf();
buf_wcerr.~stdio_filebuf();
#endif
}
ios_base::Init::Init()
{
if (_S_ios_base_init == 0)
{
ios_base::Init::_S_synced_with_stdio = true;
_S_ios_create(ios_base::Init::_S_synced_with_stdio);
}
++_S_ios_base_init;
}
ios_base::Init::~Init()
{
if (--_S_ios_base_init == 0)
_S_ios_destroy();
}
int
ios_base::xalloc() throw()
{
static _Atomic_word _S_top = 0;
return __exchange_and_add(&_S_top, 1) + 4;
}
ios_base::_Words&
ios_base::_M_grow_words(int ix)
{
int newsize = _S_local_word_size;
_Words* words = _M_local_word;
if (ix > _S_local_word_size - 1)
{
if (ix < numeric_limits<int>::max())
{
newsize = ix + 1;
try
{ words = new _Words[newsize]; }
catch (...)
{
delete [] _M_word;
_M_word = 0;
_M_streambuf_state |= badbit;
if (_M_streambuf_state & _M_exception)
__throw_ios_failure("ios_base::_M_grow_words failure");
return _M_word_zero;
}
for (int i = 0; i < _M_word_size; i++)
words[i] = _M_word[i];
if (_M_word && _M_word != _M_local_word)
{
delete [] _M_word;
_M_word = 0;
}
}
else
{
_M_streambuf_state |= badbit;
return _M_word_zero;
}
}
_M_word = words;
_M_word_size = newsize;
return _M_word[ix];
}
void
ios_base::_M_init()
{
_M_precision = 6;
_M_width = 0;
_M_flags = skipws | dec;
_M_callbacks = 0;
_M_word_size = 0;
_M_ios_locale = locale();
}
locale
ios_base::imbue(const locale& __loc)
{
locale __old = _M_ios_locale;
_M_ios_locale = __loc;
_M_call_callbacks(imbue_event);
return __old;
}
ios_base::ios_base() : _M_callbacks(0), _M_word(0)
{
}
ios_base::~ios_base()
{
_M_call_callbacks(erase_event);
_M_dispose_callbacks();
if (_M_word && _M_word != _M_local_word)
{
delete [] _M_word;
_M_word = 0;
}
}
void
ios_base::register_callback(event_callback __fn, int __index)
{ _M_callbacks = new _Callback_list(__fn, __index, _M_callbacks); }
void
ios_base::_M_call_callbacks(event __e) throw()
{
_Callback_list* __p = _M_callbacks;
while (__p)
{
try
{ (*__p->_M_fn) (__e, *this, __p->_M_index); }
catch (...)
{ }
__p = __p->_M_next;
}
}
void
ios_base::_M_dispose_callbacks(void)
{
_Callback_list* __p = _M_callbacks;
while (__p && __p->_M_remove_reference() == 0)
{
_Callback_list* __next = __p->_M_next;
delete __p;
__p = __next;
}
_M_callbacks = 0;
}
bool
ios_base::sync_with_stdio(bool __sync)
{
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
bool __ret = ios_base::Init::_S_synced_with_stdio;
#endif
if (!__sync && __ret)
{
ios_base::Init::_S_synced_with_stdio = false;
ios_base::Init::_S_ios_destroy();
ios_base::Init::_S_ios_create(ios_base::Init::_S_synced_with_stdio);
}
return __ret;
}
#ifdef APPLE_KEYMGR
#if __EXCEPTIONS
void
__throw_ios_failure(const char* __s)
{ throw ios_base::failure(__s); }
#endif
#endif
}