locale_facets.tcc

openRisc2000编译链接器等,用于i386 cygwin

      // Finish up.
      if (__beg == __end)
        __err |= ios_base::eofbit;
      return __beg;
    }

  template<typename _CharT, typename _InIter>
    template<typename _ValueT>
      _InIter
      num_get<_CharT, _InIter>::
      _M_extract_int(_InIter __beg, _InIter __end, ios_base& __io,
		     ios_base::iostate& __err, _ValueT& __v) const
      {
        typedef char_traits<_CharT>			__traits_type;
	typedef typename numpunct<_CharT>::__cache_type __cache_type;
	__use_cache<__cache_type> __uc;
	const locale& __loc = __io._M_getloc();
	const __cache_type* __lc = __uc(__loc);
	const _CharT* __lit = __lc->_M_atoms_in;

	// NB: Iff __basefield == 0, __base can change based on contents.
	const ios_base::fmtflags __basefield = __io.flags()
	                                       & ios_base::basefield;
	const bool __oct = __basefield == ios_base::oct;
	int __base = __oct ? 8 : (__basefield == ios_base::hex ? 16 : 10);

	// True if numeric digits are found.
	bool __found_num = false;

	// First check for sign.
	bool __negative = false;
	if (__beg != __end)
	  {
	    const char_type __c = *__beg;
	    if (numeric_limits<_ValueT>::is_signed)
	      __negative = __c == __lit[__num_base::_S_iminus];
	    if ((__negative || __c == __lit[__num_base::_S_iplus])
		&& !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
		&& !(__c == __lc->_M_decimal_point))
	      ++__beg;
	  }

	// Next, look for leading zeros and check required digits
	// for base formats.
	while (__beg != __end)
	  {
	    const char_type __c = *__beg;
	    if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep
		|| __c == __lc->_M_decimal_point)
	      break;
	    else if (__c == __lit[__num_base::_S_izero] 
		     && (!__found_num || __base == 10))
	      {
		__found_num = true;
		++__beg;
	      }
	    else if (__found_num)
	      {
		if (__c == __lit[__num_base::_S_ix] 
		    || __c == __lit[__num_base::_S_iX])
		  {
		    if (__basefield == 0)
		      __base = 16;
		    if (__base == 16)
		      {
			__found_num = false;
			++__beg;
		      }
		  }
		else if (__basefield == 0)
		  __base = 8;
		break;
	      }
	    else
	      break;
	  }

	// At this point, base is determined. If not hex, only allow
	// base digits as valid input.
	const size_t __len = __base == 16 ? (__num_base::_S_iend
					     - __num_base::_S_izero)
	                                  : __base;

	// Extract.
	string __found_grouping;
	if (__lc->_M_use_grouping)
	  __found_grouping.reserve(32);
	int __sep_pos = 0;
	bool __overflow = false;
	_ValueT __result = 0;
	const char_type* __lit_zero = __lit + __num_base::_S_izero;
	const char_type* __q;
	if (__negative)
	  {
	    const _ValueT __min = numeric_limits<_ValueT>::min() / __base;
	    for (; __beg != __end; ++__beg)
	      {
		// According to 22.2.2.1.2, p8-9, first look for thousands_sep
		// and decimal_point.
		const char_type __c = *__beg;
		if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
		  {
		    // NB: Thousands separator at the beginning of a string
		    // is a no-no, as is two consecutive thousands separators.
		    if (__sep_pos)
		      {
			__found_grouping += static_cast<char>(__sep_pos);
			__sep_pos = 0;
		      }
		    else
		      {
			__err |= ios_base::failbit;
			break;
		      }
		  }
		else if (__c == __lc->_M_decimal_point)
		  break;
		else if (__q = __traits_type::find(__lit_zero, __len, __c))
		  {
		    int __digit = __q - __lit_zero;
		    if (__digit > 15)
		      __digit -= 6;
		    if (__result < __min)
		      __overflow = true;
		    else
		      {
			const _ValueT __new_result = __result * __base
			                             - __digit;
			__overflow |= __new_result > __result;
			__result = __new_result;
			++__sep_pos;
			__found_num = true;
		      }
		  }
		else
		  // Not a valid input item.
		  break;
	      }
	  }
	else
	  {
	    const _ValueT __max = numeric_limits<_ValueT>::max() / __base;
	    for (; __beg != __end; ++__beg)
	      {
		const char_type __c = *__beg;
		if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
		  {
		    if (__sep_pos)
		      {
			__found_grouping += static_cast<char>(__sep_pos);
			__sep_pos = 0;
		      }
		    else
		      {
			__err |= ios_base::failbit;
			break;
		      }
		  }
		else if (__c == __lc->_M_decimal_point)
		  break;
		else if (__q = __traits_type::find(__lit_zero, __len, __c))
		  {
		    int __digit = __q - __lit_zero;
		    if (__digit > 15)
		      __digit -= 6;
		    if (__result > __max)
		      __overflow = true;
		    else
		      {
			const _ValueT __new_result = __result * __base
			                             + __digit;
			__overflow |= __new_result < __result;
			__result = __new_result;
			++__sep_pos;
			__found_num = true;
		      }
		  }
		else
		  break;
	      }
	  }

	// Digit grouping is checked. If grouping and found_grouping don't
	// match, then get very very upset, and set failbit.
	if (__lc->_M_use_grouping && __found_grouping.size())
	  {
	    // Add the ending grouping.
	    __found_grouping += static_cast<char>(__sep_pos);

	    if (!std::__verify_grouping(__lc->_M_grouping,
					__lc->_M_grouping_size,
					__found_grouping))
	      __err |= ios_base::failbit;
	  }

	if (!(__err & ios_base::failbit) && !__overflow
	    && __found_num)
	  __v = __result;
	else
	  __err |= ios_base::failbit;

	if (__beg == __end)
	  __err |= ios_base::eofbit;
	return __beg;
      }

  // _GLIBCXX_RESOLVE_LIB_DEFECTS
  // 17.  Bad bool parsing
  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, bool& __v) const
    {
      if (!(__io.flags() & ios_base::boolalpha))
        {
	  // Parse bool values as long.
          // NB: We can't just call do_get(long) here, as it might
          // refer to a derived class.
	  long __l = -1;
          __beg = _M_extract_int(__beg, __end, __io, __err, __l);
	  if (__l == 0 || __l == 1)
	    __v = __l;
	  else
            __err |= ios_base::failbit;
        }
      else
        {
	  // Parse bool values as alphanumeric.
	  typedef char_traits<_CharT>                     __traits_type;
	  typedef typename numpunct<_CharT>::__cache_type __cache_type;
	  __use_cache<__cache_type> __uc;
	  const locale& __loc = __io._M_getloc();
	  const __cache_type* __lc = __uc(__loc);

	  bool __testf = true;
	  bool __testt = true;
	  size_t __n;
          for (__n = 0; __beg != __end; ++__n, ++__beg)
            {
	      if (__testf)
		if (__n < __lc->_M_falsename_size)
		  __testf = *__beg == __lc->_M_falsename[__n];
		else
		  break;

	      if (__testt)
		if (__n < __lc->_M_truename_size)
		  __testt = *__beg == __lc->_M_truename[__n];
		else
		  break;

	      if (!__testf && !__testt)
		break;
            }
	  if (__testf && __n == __lc->_M_falsename_size)
	    __v = 0;
	  else if (__testt && __n == __lc->_M_truename_size)
	    __v = 1;
	  else
	    __err |= ios_base::failbit;

          if (__beg == __end)
            __err |= ios_base::eofbit;
        }
      return __beg;
    }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, long& __v) const
    { return _M_extract_int(__beg, __end, __io, __err, __v); }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, unsigned short& __v) const
    { return _M_extract_int(__beg, __end, __io, __err, __v); }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, unsigned int& __v) const
    { return _M_extract_int(__beg, __end, __io, __err, __v); }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, unsigned long& __v) const
    { return _M_extract_int(__beg, __end, __io, __err, __v); }

#ifdef _GLIBCXX_USE_LONG_LONG
  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, long long& __v) const
    { return _M_extract_int(__beg, __end, __io, __err, __v); }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, unsigned long long& __v) const
    { return _M_extract_int(__beg, __end, __io, __err, __v); }
#endif

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
	   ios_base::iostate& __err, float& __v) const
    {
      string __xtrc;
      __xtrc.reserve(32);
      __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
      std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
      return __beg;
    }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, double& __v) const
    {
      string __xtrc;
      __xtrc.reserve(32);
      __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
      std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
      return __beg;
    }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, long double& __v) const
    {
      string __xtrc;
      __xtrc.reserve(32);
      __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
      std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
      return __beg;
    }

  template<typename _CharT, typename _InIter>
    _InIter
    num_get<_CharT, _InIter>::
    do_get(iter_type __beg, iter_type __end, ios_base& __io,
           ios_base::iostate& __err, void*& __v) const
    {
      // Prepare for hex formatted input.
      typedef ios_base::fmtflags        fmtflags;
      const fmtflags __fmt = __io.flags();
      __io.flags(__fmt & ~ios_base::basefield | ios_base::hex);

      unsigned long __ul;
      __beg = _M_extract_int(__beg, __end, __io, __err, __ul);

      // Reset from hex formatted input.
      __io.flags(__fmt);

      if (!(__err & ios_base::failbit))
	__v = reinterpret_cast<void*>(__ul);
      else
	__err |= ios_base::failbit;
      return __beg;
    }

  // For use by integer and floating-point types after they have been
  // converted into a char_type string.
  template<typename _CharT, typename _OutIter>
    void
    num_put<_CharT, _OutIter>::
    _M_pad(_CharT __fill, streamsize __w, ios_base& __io,
	   _CharT* __new, const _CharT* __cs, int& __len) const
    {
      // [22.2.2.2.2] Stage 3.
      // If necessary, pad.
      __pad<_CharT, char_traits<_CharT> >::_S_pad(__io, __fill, __new, __cs,
						  __w, __len, true);
      __len = static_cast<int>(__w);
    }

  // Forwarding functions to peel signed from unsigned integer types.
  template<typename _CharT>
    inline int
    __int_to_char(_CharT* __bufend, long __v, const _CharT* __lit,
		  ios_base::fmtflags __flags)
    {
      unsigned long __ul = static_cast<unsigned long>(__v);
      bool __neg = false;
      if (__v < 0)
	{
	  __ul = -__ul;
	  __neg = true;
	}
      return __int_to_char(__bufend, __ul, __lit, __flags, __neg);
    }

  template<typename _CharT>
    inline int
    __int_to_char(_CharT* __bufend, unsigned long __v, const _CharT* __lit,
		  ios_base::fmtflags __flags)
    {
      // About showpos, see Table 60 and C99 7.19.6.1, p6 (+).
      return __int_to_char(__bufend, __v, __lit,
			   __flags & ~ios_base::showpos, false);
    }

#ifdef _GLIBCXX_USE_LONG_LONG
  template<typename _CharT>