ostream

C语言库函数的原型,有用的拿去

		if (_Ok)
			{	// state okay, use facet to insert
			const _Nput& _Nput_fac = _USE(ios_base::getloc(), _Nput);

			_TRY_IO_BEGIN
			if (_Nput_fac.put(_Iter(_Myios::rdbuf()), *this,
				_Myios::fill(), _Val).failed())
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL operator<<(_ULONGLONG _Val)
		{	// insert an unsigned long long
		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (_Ok)
			{	// state okay, use facet to insert
			const _Nput& _Nput_fac = _USE(ios_base::getloc(), _Nput);

			_TRY_IO_BEGIN
			if (_Nput_fac.put(_Iter(_Myios::rdbuf()), *this,
				_Myios::fill(), _Val).failed())
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}
 #endif /* _LONGLONG */

	_Myt& __CLR_OR_THIS_CALL operator<<(float _Val)
		{	// insert a float
		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (_Ok)
			{	// state okay, use facet to insert
			const _Nput& _Nput_fac = _USE(ios_base::getloc(), _Nput);

			_TRY_IO_BEGIN
			if (_Nput_fac.put(_Iter(_Myios::rdbuf()), *this,
				_Myios::fill(), (double)_Val).failed())
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL operator<<(double _Val)
		{	// insert a double
		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (_Ok)
			{	// state okay, use facet to insert
			const _Nput& _Nput_fac = _USE(ios_base::getloc(), _Nput);

			_TRY_IO_BEGIN
			if (_Nput_fac.put(_Iter(_Myios::rdbuf()), *this,
				_Myios::fill(), _Val).failed())
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL operator<<(long double _Val)
		{	// insert a long double
		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (_Ok)
			{	// state okay, use facet to insert
			const _Nput& _Nput_fac = _USE(ios_base::getloc(), _Nput);

			_TRY_IO_BEGIN
			if (_Nput_fac.put(_Iter(_Myios::rdbuf()), *this,
				_Myios::fill(), _Val).failed())
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL operator<<(const void *_Val)
		{	// insert a void pointer
		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (_Ok)
			{	// state okay, use facet to insert
			const _Nput& _Nput_fac = _USE(ios_base::getloc(), _Nput);

			_TRY_IO_BEGIN
			if (_Nput_fac.put(_Iter(_Myios::rdbuf()), *this,
				_Myios::fill(), _Val).failed())
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL operator<<(_Mysb *_Strbuf)
		{	// insert until end-of-file from a stream buffer
		ios_base::iostate _State = ios_base::goodbit;
		bool _Copied = false;
		const sentry _Ok(*this);

		if (_Ok && _Strbuf != 0)
			for (int_type _Meta = _Traits::eof(); ; _Copied = true)
				{	// extract another character from stream buffer
				_TRY_BEGIN
				_Meta = _Traits::eq_int_type(_Traits::eof(), _Meta)
					? _Strbuf->sgetc() : _Strbuf->snextc();
				_CATCH_ALL
					_Myios::setstate(ios_base::failbit);
					_RERAISE;
				_CATCH_END

				if (_Traits::eq_int_type(_Traits::eof(), _Meta))
					break;	// end of file, quit

				_TRY_IO_BEGIN
					if (_Traits::eq_int_type(_Traits::eof(),
						_Myios::rdbuf()->sputc(
							_Traits::to_char_type(_Meta))))
						{	// insertion failed, quit
						_State |= ios_base::badbit;
						break;
						}
				_CATCH_IO_END
				}

		ios_base::width(0);
		_Myios::setstate(_Strbuf == 0 ? ios_base::badbit
			: !_Copied ? _State | ios_base::failbit : _State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL put(_Elem _Ch)
		{	// insert a character
		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (!_Ok)
			_State |= ios_base::badbit;
		else
			{	// state okay, insert character
			_TRY_IO_BEGIN
			if (_Traits::eq_int_type(_Traits::eof(),
				_Myios::rdbuf()->sputc(_Ch)))
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL write(const _Elem *_Str,
		streamsize _Count)
		{	// insert _Count characters from array _Str
 #if _ITERATOR_DEBUG_LEVEL == 2
		if (0 < _Count)
			_DEBUG_POINTER(_Str);
 #endif /* _ITERATOR_DEBUG_LEVEL == 2 */

		ios_base::iostate _State = ios_base::goodbit;
		const sentry _Ok(*this);

		if (!_Ok)
			_State |= ios_base::badbit;
		else
			{	// state okay, insert characters
			_TRY_IO_BEGIN
			if (_Myios::rdbuf()->sputn(_Str, _Count) != _Count)
				_State |= ios_base::badbit;
			_CATCH_IO_END
			}

		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL flush()
		{	// flush output stream
		ios_base::iostate _State = ios_base::goodbit;
		if (!ios_base::fail() && _Myios::rdbuf()->pubsync() == -1)
			_State |= ios_base::badbit;	// sync failed
		_Myios::setstate(_State);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL seekp(pos_type _Pos)
		{	// set output stream position to _Pos
		if (!ios_base::fail()
			&& (off_type)_Myios::rdbuf()->pubseekpos(_Pos,
				ios_base::out) == _BADOFF)
			_Myios::setstate(ios_base::failbit);
		return (*this);
		}

	_Myt& __CLR_OR_THIS_CALL seekp(off_type _Off, ios_base::seekdir _Way)
		{	// change output stream position by _Off, according to _Way
		if (!ios_base::fail()
			&& (off_type)_Myios::rdbuf()->pubseekoff(_Off, _Way,
				ios_base::out) == _BADOFF)
			_Myios::setstate(ios_base::failbit);
		return (*this);
		}

	pos_type __CLR_OR_THIS_CALL tellp()
		{	// return output stream position
		if (!ios_base::fail())
			return (_Myios::rdbuf()->pubseekoff(0,
				ios_base::cur, ios_base::out));
		else
			return (pos_type(_BADOFF));
		}
	};

	// basic_ostream TEMPLATE OPERATORS
template<class _Elem,
	class _Traits> inline
	void swap(basic_ostream<_Elem, _Traits>& _Left,
		basic_ostream<_Elem, _Traits>& _Right)
	{	// swap _Left and _Right basic_ostreams
	_Left.swap(_Right);
	}

  #ifndef _NATIVE_WCHAR_T_DEFINED
/* NOTE:
	If you are not using native wchar_t, the following explicit
	specialization will mask the member function (above) that treats
	an unsigned short as an integer.

	To read or write unsigned shorts as integers with wchar_t streams,
	make wchar_t a native type with the command line option /Zc:wchar_t.
 */
template<> inline
	basic_ostream<unsigned short, char_traits<unsigned short> >&
		__CLR_OR_THIS_CALL basic_ostream<unsigned short,
			char_traits<unsigned short> >::operator<<(unsigned short _Ch)
	{	// extract a character
	typedef char_traits<unsigned short> _Traits;

	ios_base::iostate _State = ios_base::goodbit;
	const sentry _Ok(*this);

	if (_Ok)
		{	// state okay, insert
		streamsize _Pad = width() <= 1 ? 0 : width() - 1;

		_TRY_IO_BEGIN
		if ((flags() & ios_base::adjustfield) != ios_base::left)
			for (; _State == ios_base::goodbit && 0 < _Pad;
				--_Pad)	// pad on left
				if (_Traits::eq_int_type(_Traits::eof(),
					rdbuf()->sputc(fill())))
					_State |= ios_base::badbit;

		if (_State == ios_base::goodbit
			&& _Traits::eq_int_type(_Traits::eof(),
				rdbuf()->sputc(_Ch)))
			_State |= ios_base::badbit;

		for (; _State == ios_base::goodbit && 0 < _Pad;
			--_Pad)	// pad on right
			if (_Traits::eq_int_type(_Traits::eof(),
				rdbuf()->sputc(fill())))
				_State |= ios_base::badbit;
		_CATCH_IO_END
		}

	width(0);
	_Myios::setstate(_State);
	return (*this);
	}
  #endif /* _NATIVE_WCHAR_T_DEFINED */

 #if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE)

  #ifdef __FORCE_INSTANCE
template class _CRTIMP2_PURE basic_ostream<char,
	char_traits<char> >;
template class _CRTIMP2_PURE basic_ostream<wchar_t,
	char_traits<wchar_t> >;

   #ifdef _CRTBLD_NATIVE_WCHAR_T
template class _CRTIMP2_PURE basic_ostream<unsigned short,
	char_traits<unsigned short> >;
   #endif /* _CRTBLD_NATIVE_WCHAR_T */

  #endif /* __FORCE_INSTANCE */
 #endif /* defined(_DLL_CPPLIB) etc. */

		// INSERTERS

template<class _Elem,
	class _Traits> inline
	basic_ostream<_Elem, _Traits>& operator<<(
		basic_ostream<_Elem, _Traits>& _Ostr, const char *_Val)
	{	// insert NTBS
	ios_base::iostate _State = ios_base::goodbit;
	streamsize _Count = (streamsize)_CSTD strlen(_Val);	// may overflow
	streamsize _Pad = _Ostr.width() <= 0 || _Ostr.width() <= _Count
		? 0 : _Ostr.width() - _Count;
	const typename basic_ostream<_Elem, _Traits>::sentry _Ok(_Ostr);

	if (!_Ok)
		_State |= ios_base::badbit;
	else
		{	// state okay, insert characters
		_TRY_IO_BEGIN
		const ctype<_Elem>& _Ctype_fac = _USE(_Ostr.getloc(), ctype<_Elem>);
		if ((_Ostr.flags() & ios_base::adjustfield) != ios_base::left)
			for (; 0 < _Pad; --_Pad)	// pad on left
				if (_Traits::eq_int_type(_Traits::eof(),
					_Ostr.rdbuf()->sputc(_Ostr.fill())))
					{	// insertion failed, quit
					_State |= ios_base::badbit;
					break;
					}

		for (; _State == ios_base::goodbit && 0 < _Count; --_Count, ++_Val)
			if (_Traits::eq_int_type(_Traits::eof(),
				_Ostr.rdbuf()->sputc(_Ctype_fac.widen(*_Val))))
					_State |= ios_base::badbit;

		if (_State == ios_base::goodbit)
			for (; 0 < _Pad; --_Pad)	// pad on right
				if (_Traits::eq_int_type(_Traits::eof(),
					_Ostr.rdbuf()->sputc(_Ostr.fill())))
					{	// insertion failed, quit
					_State |= ios_base::badbit;
					break;
					}
		_Ostr.width(0);
		_CATCH_IO_(_Ostr)
		}

	_Ostr.setstate(_State);
	return (_Ostr);
	}

template<class _Elem,
	class _Traits> inline
	basic_ostream<_Elem, _Traits>& operator<<(
		basic_ostream<_Elem, _Traits>& _Ostr, char _Ch)
	{	// insert a character
	ios_base::iostate _State = ios_base::goodbit;
	const typename basic_ostream<_Elem, _Traits>::sentry _Ok(_Ostr);

	if (_Ok)
		{	// state okay, insert
		const ctype<_Elem>& _Ctype_fac = _USE(_Ostr.getloc(), ctype<_Elem>);