locale_facets.h

gcc3.2.1源代码

      static locale::id 		id;

    private:
      char_type 			_M_decimal_point;
      char_type 			_M_thousands_sep;
      const char* 			_M_grouping;
      const char_type* 			_M_truename;
      const char_type*			_M_falsename;

    public:
      explicit 
      numpunct(size_t __refs = 0) : locale::facet(__refs) 
      { _M_initialize_numpunct(); }

      explicit 
      numpunct(__c_locale __cloc, size_t __refs = 0) : locale::facet(__refs) 
      { _M_initialize_numpunct(__cloc); }

      char_type    
      decimal_point() const
      { return this->do_decimal_point(); }

      char_type    
      thousands_sep() const
      { return this->do_thousands_sep(); }

      string       
      grouping() const
      { return this->do_grouping(); }

      string_type  
      truename() const
      { return this->do_truename(); }

      string_type  
      falsename() const
      { return this->do_falsename(); }

    protected:
      virtual 
      ~numpunct();

      virtual char_type    
      do_decimal_point() const
      { return _M_decimal_point; }

      virtual char_type    
      do_thousands_sep() const
      { return _M_thousands_sep; }

      virtual string
      do_grouping() const
      { return _M_grouping; }

      virtual string_type  
      do_truename() const
      { return _M_truename; }

      virtual string_type  
      do_falsename() const
      { return _M_falsename; }

      // For use at construction time only.
      void 
      _M_initialize_numpunct(__c_locale __cloc = NULL);
    };

  template<typename _CharT>
    locale::id numpunct<_CharT>::id;

  template<> 
    numpunct<char>::~numpunct();

  template<> 
    void
    numpunct<char>::_M_initialize_numpunct(__c_locale __cloc);

#ifdef _GLIBCPP_USE_WCHAR_T
  template<> 
    numpunct<wchar_t>::~numpunct();

  template<> 
    void
    numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc);
#endif

  template<typename _CharT>
    class numpunct_byname : public numpunct<_CharT>
    {
      // Data Member.
      __c_locale			_M_c_locale_numpunct;

    public:
      typedef _CharT               	char_type;
      typedef basic_string<_CharT> 	string_type;

      explicit 
      numpunct_byname(const char* __s, size_t __refs = 0)
      : numpunct<_CharT>(__refs)
      {
	_S_create_c_locale(_M_c_locale_numpunct, __s);
	_M_initialize_numpunct(_M_c_locale_numpunct);	
      }

    protected:
      virtual 
      ~numpunct_byname() 
      { _S_destroy_c_locale(_M_c_locale_numpunct); }
    };

  template<typename _CharT, typename _InIter>
    class num_get : public locale::facet, public __num_base
    {
    public:
      // Types:
      typedef _CharT   			char_type;
      typedef _InIter  			iter_type;

      static locale::id 		id;

      explicit 
      num_get(size_t __refs = 0) : locale::facet(__refs) { }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, bool& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type
      get(iter_type __in, iter_type __end, ios_base& __io, 
	  ios_base::iostate& __err, long& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, unsigned short& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, unsigned int& __v)   const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, unsigned long& __v)  const
      { return this->do_get(__in, __end, __io, __err, __v); }

#ifdef _GLIBCPP_USE_LONG_LONG
      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, long long& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, unsigned long long& __v)  const
      { return this->do_get(__in, __end, __io, __err, __v); }
#endif

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, float& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, double& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, long double& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }

      iter_type 
      get(iter_type __in, iter_type __end, ios_base& __io,
	  ios_base::iostate& __err, void*& __v) const
      { return this->do_get(__in, __end, __io, __err, __v); }      

    protected:
      virtual ~num_get() { }

      iter_type 
      _M_extract_float(iter_type, iter_type, ios_base&, ios_base::iostate&, 
		       string& __xtrc) const;

      iter_type 
      _M_extract_int(iter_type, iter_type, ios_base&, ios_base::iostate&, 
		     string& __xtrc, int& __base) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, bool&) const;


      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, long&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	      unsigned short&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     unsigned int&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     unsigned long&) const;

#ifdef _GLIBCPP_USE_LONG_LONG 
      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     long long&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     unsigned long long&) const;
#endif

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     float&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     double&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     long double&) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, 
	     void*&) const;
    };

  template<typename _CharT, typename _InIter>
    locale::id num_get<_CharT, _InIter>::id;

#if 0
  // Partial specialization for istreambuf_iterator, so can use traits_type.
  template<typename _CharT>
    class num_get<_CharT, istreambuf_iterator<_CharT> >;

      iter_type 
      _M_extract_float(iter_type, iter_type, ios_base&, ios_base::iostate&, 
		       string& __xtrc) const;

      iter_type 
      _M_extract_int(iter_type, iter_type, ios_base&, ios_base::iostate&, 
		     string& __xtrc, int& __base) const;

      virtual iter_type 
      do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, bool&) const;
#endif

  template<typename _CharT, typename _OutIter>
    class num_put : public locale::facet, public __num_base
    {
    public:
      // Types:
      typedef _CharT       	char_type;
      typedef _OutIter     	iter_type;

      static locale::id		id;

      explicit 
      num_put(size_t __refs = 0) : locale::facet(__refs) { }

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, bool __v) const
      { return this->do_put(__s, __f, __fill, __v); }

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, long __v) const
      { return this->do_put(__s, __f, __fill, __v); }

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, 
	  unsigned long __v) const
      { return this->do_put(__s, __f, __fill, __v); }

#ifdef _GLIBCPP_USE_LONG_LONG 
      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, long long __v) const
      { return this->do_put(__s, __f, __fill, __v); }

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, 
	  unsigned long long __v) const
      { return this->do_put(__s, __f, __fill, __v); }
#endif

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, double __v) const
      { return this->do_put(__s, __f, __fill, __v); }

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, 
	  long double __v) const
      { return this->do_put(__s, __f, __fill, __v); }

      iter_type 
      put(iter_type __s, ios_base& __f, char_type __fill, 
	  const void* __v) const
      { return this->do_put(__s, __f, __fill, __v); }

    protected:
      template<typename _ValueT>
        iter_type
        _M_convert_float(iter_type, ios_base& __io, char_type __fill, 
			 char __mod, _ValueT __v) const;

      template<typename _ValueT>
        iter_type
        _M_convert_int(iter_type, ios_base& __io, char_type __fill, 
		       char __mod, char __modl, _ValueT __v) const;

      iter_type
      _M_widen_float(iter_type, ios_base& __io, char_type __fill, char* __cs, 
		     int __len) const;

      iter_type
      _M_widen_int(iter_type, ios_base& __io, char_type __fill, char* __cs, 
		   int __len) const;

      iter_type
      _M_insert(iter_type, ios_base& __io, char_type __fill, 
		const char_type* __ws, int __len) const;

      virtual 
      ~num_put() { };

      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, bool __v) const;

      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, long __v) const;

      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, unsigned long) const;

#ifdef _GLIBCPP_USE_LONG_LONG 
      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, long long __v) const;

      virtual iter_type
      do_put(iter_type, ios_base&, char_type __fill, unsigned long long) const;
#endif

      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, double __v) const;

      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, long double __v) const;

      virtual iter_type 
      do_put(iter_type, ios_base&, char_type __fill, const void* __v) const;
    };

  template <typename _CharT, typename _OutIter>
    locale::id num_put<_CharT, _OutIter>::id;


  template<typename _CharT>
    class collate : public locale::facet
    {
    public:
      // Types:
      typedef _CharT               	char_type;
      typedef basic_string<_CharT> 	string_type;

    protected:
      // Underlying "C" library locale information saved from
      // initialization, needed by collate_byname as well.
      __c_locale			_M_c_locale_collate;
 
    public:
      static locale::id 		id;

      explicit 
      collate(size_t __refs = 0)
      : locale::facet(__refs)
      { _M_c_locale_collate = _S_c_locale; }

      explicit 
      collate(__c_locale __cloc, size_t __refs = 0) 
      : locale::facet(__refs)
      { _M_c_locale_collate = _S_clone_c_locale(__cloc); }

      int 
      compare(const _CharT* __lo1, const _CharT* __hi1,
	      const _CharT* __lo2, const _CharT* __hi2) const
      { return this->do_compare(__lo1, __hi1, __lo2, __hi2); }

      string_type 
      transform(const _CharT* __lo, const _CharT* __hi) const
      { return this->do_transform(__lo, __hi); }

      long 
      hash(const _CharT* __lo, const _CharT* __hi) const
      { return this->do_hash(__lo, __hi); }
      
      // Used to abstract out _CharT bits in virtual member functions, below.
      int
      _M_compare(const _CharT*, const _CharT*) const;

      size_t
      _M_transform(_CharT*, const _CharT*, size_t) const;

  protected:
      virtual
      ~collate() 
      { _S_destroy_c_locale(_M_c_locale_collate); }

      virtual int  
      do_compare(const _CharT* __lo1, const _CharT* __hi1,
		 const _CharT* __lo2, const _CharT* __hi2) const;

      virtual string_type 
      do_transform(const _CharT* __lo, const _CharT* __hi) const;

      virtual long   
      do_hash(const _CharT* __lo, const _CharT* __hi) const;
    };

  template<typename _CharT>
    locale::id collate<_CharT>::id;

  // Specializations.
  template<>
    int 
    collate<char>::_M_compare(const char*, const char*) const;

  template<>
    size_t
    collate<char>::_M_transform(char*, const char*, size_t) const;

#ifdef _GLIBCPP_USE_WCHAR_T
  template<>
    int 
    collate<wchar_t>::_M_compare(const wchar_t*, const wchar_t*) const;

  template<>
    size_t
    collate<wchar_t>::_M_transform(wchar_t*, const wchar_t*, size_t) const;
#endif

  template<typename _CharT>
    class collate_byname : public collate<_CharT>
    {
    public:
      typedef _CharT               char_type;
      typedef basic_string<_CharT> string_type;

      explicit 
      collate_byname(const char* __s, size_t __refs = 0)
      : collate<_CharT>(__refs) 
      { 
	_S_destroy_c_locale(_M_c_locale_collate);
	_S_create_c_locale(_M_c_locale_collate, __s); 
      }