1 /*
2 * Copyright (c) 1999
3 * Silicon Graphics Computer Systems, Inc.
4 *
5 * Copyright (c) 1999
6 * Boris Fomitchev
7 *
8 * This material is provided "as is", with absolutely no warranty expressed
9 * or implied. Any use is at your own risk.
10 *
11 * Permission to use or copy this software for any purpose is hereby granted
12 * without fee, provided the above notices are retained on all copies.
13 * Permission to modify the code and to distribute modified code is granted,
14 * provided the above notices are retained, and a notice that the code was
15 * modified is included with the above copyright notice.
16 *
17 */
18 // WARNING: This is an internal header file, included by other C++
19 // standard library headers. You should not attempt to use this header
20 // file directly.
21
22
23 #ifndef _STLP_INTERNAL_LOCALE_H
24 #define _STLP_INTERNAL_LOCALE_H
25
26 #ifndef _STLP_INTERNAL_CSTDLIB
27 # include <stl/_cstdlib.h>
28 #endif
29
30 #ifndef _STLP_INTERNAL_CWCHAR
31 # include <stl/_cwchar.h>
32 #endif
33
34 #ifndef _STLP_INTERNAL_THREADS_H
35 # include <stl/_threads.h>
36 #endif
37
38 #ifndef _STLP_STRING_FWD_H
39 # include <stl/_string_fwd.h>
40 #endif
41
42 #include <stl/_facets_fwd.h>
43
44 _STLP_BEGIN_NAMESPACE
45
46 class _Locale_impl; // Forward declaration of opaque type.
47 class locale;
48
49 template <class _CharT, class _Traits, class _Alloc>
50 bool __locale_do_operator_call(const locale& __loc,
51 const basic_string<_CharT, _Traits, _Alloc>& __x,
52 const basic_string<_CharT, _Traits, _Alloc>& __y);
53
54 _STLP_DECLSPEC _Locale_impl * _STLP_CALL _get_Locale_impl( _Locale_impl *locimpl );
55 _STLP_DECLSPEC _Locale_impl * _STLP_CALL _copy_Nameless_Locale_impl( _Locale_impl *locimpl );
56
57 _STLP_MOVE_TO_PRIV_NAMESPACE
58
59 template <class _Facet>
60 bool _HasFacet(const locale& __loc, const _Facet* __facet) _STLP_NOTHROW;
61
62 template <class _Facet>
63 _Facet* _UseFacet(const locale& __loc, const _Facet* __facet);
64
65 template <class _Facet>
66 void _InsertFacet(locale& __loc, _Facet* __facet);
67
68 _STLP_MOVE_TO_STD_NAMESPACE
69
70 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \
71 defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
72 # define locale _STLP_NO_MEM_T_NAME(loc)
73 #endif
74
75 class _STLP_CLASS_DECLSPEC locale {
76 public:
77 // types:
78 class _STLP_CLASS_DECLSPEC facet : protected _Refcount_Base {
79 protected:
80 /* Here we filter __init_count user value to 0 or 1 because __init_count is a
81 * size_t instance and _Refcount_Base use __stl_atomic_t instances that might
82 * have lower sizeof and generate roll issues. 1 is enough to keep the facet
83 * alive when required. */
84 explicit facet(size_t __init_count = 0) : _Refcount_Base( __init_count == 0 ? 0 : 1 ) {}
85 virtual ~facet();
86 friend class locale;
87 friend class _Locale_impl;
88 friend facet * _STLP_CALL _get_facet( facet * );
89 friend void _STLP_CALL _release_facet( facet *& );
90
91 private: // Invalidate assignment and copying.
92 facet(const facet& ) /* : _Refcount_Base(1) {} */;
93 void operator=(const facet&);
94 };
95
96 #if defined (__MVS__) || defined (__OS400__)
97 struct
98 #else
99 class
100 #endif
101 _STLP_CLASS_DECLSPEC id {
102 public:
103 size_t _M_index;
104 static size_t _S_max;
105 };
106
107 typedef int category;
108 _STLP_STATIC_CONSTANT(category, none = 0x000);
109 _STLP_STATIC_CONSTANT(category, collate = 0x010);
110 _STLP_STATIC_CONSTANT(category, ctype = 0x020);
111 _STLP_STATIC_CONSTANT(category, monetary = 0x040);
112 _STLP_STATIC_CONSTANT(category, numeric = 0x100);
113 _STLP_STATIC_CONSTANT(category, time = 0x200);
114 _STLP_STATIC_CONSTANT(category, messages = 0x400);
115 _STLP_STATIC_CONSTANT(category, all = collate | ctype | monetary | numeric | time | messages);
116
117 // construct/copy/destroy:
118 locale() _STLP_NOTHROW;
119 locale(const locale&) _STLP_NOTHROW;
120 explicit locale(const char *);
121 locale(const locale&, const char*, category);
122
123 #if defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
124 template <class _Facet>
locale(const locale & __loc,_Facet * __f)125 locale(const locale& __loc, _Facet* __f) {
126 if ( __f != 0 ) {
127 this->_M_impl = _get_Locale_impl( _copy_Nameless_Locale_impl( __loc._M_impl ) );
128 _STLP_PRIV _InsertFacet(*this, __f);
129 } else {
130 this->_M_impl = _get_Locale_impl( __loc._M_impl );
131 }
132 }
133 #endif
134
135 protected:
136 // those are for internal use
137 locale(_Locale_impl*);
138
139 public:
140 locale(const locale&, const locale&, category);
141 const locale& operator=(const locale&) _STLP_NOTHROW;
142
143 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
144 protected:
145 #endif
146 ~locale() _STLP_NOTHROW;
147
148 public:
149 #if defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS) && \
150 !defined(_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
151 template <class _Facet>
combine(const locale & __loc)152 locale combine(const locale& __loc) const {
153 _Facet *__facet = 0;
154 if (!_STLP_PRIV _HasFacet(__loc, __facet))
155 _M_throw_on_combine_error(__loc.name());
156
157 return locale(*this, _STLP_PRIV _UseFacet(__loc, __facet));
158 }
159 #endif
160
161 // locale operations:
162 string name() const;
163
164 bool operator==(const locale&) const;
165 bool operator!=(const locale&) const;
166
167 #if !defined (_STLP_MEMBER_TEMPLATES) || defined (_STLP_INLINE_MEMBER_TEMPLATES) || (defined(__MWERKS__) && __MWERKS__ <= 0x2301)
168 bool operator()(const string& __x, const string& __y) const;
169 # ifndef _STLP_NO_WCHAR_T
170 bool operator()(const wstring& __x, const wstring& __y) const;
171 # endif
172 #elif !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
173 template <class _CharT, class _Traits, class _Alloc>
operator()174 bool operator()(const basic_string<_CharT, _Traits, _Alloc>& __x,
175 const basic_string<_CharT, _Traits, _Alloc>& __y) const
176 { return __locale_do_operator_call(*this, __x, __y); }
177 #endif
178
179 // global locale objects:
180 #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
181 static locale _STLP_CALL global(const locale&);
182 #else
183 static _Locale_impl* _STLP_CALL global(const locale&);
184 #endif
185 static const locale& _STLP_CALL classic();
186
187 //protected: // Helper functions for locale globals.
188 facet* _M_get_facet(const id&) const;
189 // same, but throws
190 facet* _M_use_facet(const id&) const;
191 static void _STLP_FUNCTION_THROWS _STLP_CALL _M_throw_on_combine_error(const string& name);
192 static void _STLP_FUNCTION_THROWS _STLP_CALL _M_throw_on_null_name();
193 static void _STLP_FUNCTION_THROWS _STLP_CALL _M_throw_on_creation_failure(int __err_code,
194 const char* name, const char* facet);
195
196 //protected: // More helper functions.
197 void _M_insert(facet* __f, id& __id);
198
199 // friends:
200 friend class _Locale_impl;
201
202 protected: // Data members
203 _Locale_impl* _M_impl;
_M_get_impl()204 _Locale_impl* _M_get_impl() const { return _M_impl; }
205 };
206
207 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \
208 defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
209 # undef locale
210 # define _Locale _STLP_NO_MEM_T_NAME(loc)
211
212 class locale : public _Locale {
213 public:
214
215 // construct/copy/destroy:
locale()216 locale() _STLP_NOTHROW {
217 #if defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
218 _STLP_CHECK_RUNTIME_COMPATIBILITY();
219 #endif
220 }
locale(const locale & __loc)221 locale(const locale& __loc) _STLP_NOTHROW : _Locale(__loc) {}
locale(const char * __str)222 explicit locale(const char *__str) : _Locale(__str) {}
locale(const locale & __loc,const char * __str,category __cat)223 locale(const locale& __loc, const char* __str, category __cat)
224 : _Locale(__loc, __str, __cat) {}
225
226 template <class _Facet>
locale(const locale & __loc,_Facet * __f)227 locale(const locale& __loc, _Facet* __f)
228 : _Locale(__f != 0 ? _copy_Nameless_Locale_impl(__loc._M_impl) : __loc._M_impl) {
229 if ( __f != 0 ) {
230 _STLP_PRIV _InsertFacet(*this, __f);
231 }
232 }
233
234 private:
235 // those are for internal use
locale(_Locale_impl * __impl)236 locale(_Locale_impl* __impl) : _Locale(__impl) {}
locale(const _Locale & __loc)237 locale(const _Locale& __loc) : _Locale(__loc) {}
238
239 public:
240
locale(const locale & __loc1,const locale & __loc2,category __cat)241 locale(const locale& __loc1, const locale& __loc2, category __cat)
242 : _Locale(__loc1, __loc2, __cat) {}
243
244 const locale& operator=(const locale& __loc) _STLP_NOTHROW {
245 _Locale::operator=(__loc);
246 return *this;
247 }
248
249 template <class _Facet>
combine(const locale & __loc)250 locale combine(const locale& __loc) const {
251 _Facet *__facet = 0;
252 if (!_STLP_PRIV _HasFacet(__loc, __facet))
253 _M_throw_on_combine_error(__loc.name());
254
255 return locale(*this, _STLP_PRIV _UseFacet(__loc, __facet));
256 }
257
258 // locale operations:
259 bool operator==(const locale& __loc) const { return _Locale::operator==(__loc); }
260 bool operator!=(const locale& __loc) const { return _Locale::operator!=(__loc); }
261
262 template <class _CharT, class _Traits, class _Alloc>
operator()263 bool operator()(const basic_string<_CharT, _Traits, _Alloc>& __x,
264 const basic_string<_CharT, _Traits, _Alloc>& __y) const
265 { return __locale_do_operator_call(*this, __x, __y); }
266
267 // global locale objects:
global(const locale & __loc)268 static locale _STLP_CALL global(const locale& __loc) {
269 return _Locale::global(__loc);
270 }
classic()271 static const locale& _STLP_CALL classic() {
272 return __STATIC_CAST(const locale&, _Locale::classic());
273 }
274
275 // friends:
276 friend class _Locale_impl;
277 };
278
279 # undef _Locale
280 #endif
281
282 //----------------------------------------------------------------------
283 // locale globals
284
285 template <class _Facet>
286 inline const _Facet&
287 #ifdef _STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS
288 _Use_facet<_Facet>::operator *() const
289 #else
290 use_facet(const locale& __loc)
291 #endif
292 {
293 _Facet *__facet = 0;
294 return *(_STLP_PRIV _UseFacet(__loc, __facet));
295 }
296
297 template <class _Facet>
298 #ifdef _STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS
299 struct has_facet {
300 const locale& __loc;
has_facethas_facet301 has_facet(const locale& __p_loc) : __loc(__p_loc) {}
302 operator bool() const _STLP_NOTHROW
303 #else
304 inline bool has_facet(const locale& __loc) _STLP_NOTHROW
305 #endif
306 {
307 _Facet *__facet = 0;
308 return _STLP_PRIV _HasFacet(__loc, __facet);
309 }
310
311 #ifdef _STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS
312 }; // close class definition
313 #endif
314
315 _STLP_MOVE_TO_PRIV_NAMESPACE
316
317 /* _GetFacetId is a helper function that allow delaying access to
318 * facet id static instance in the library source code to avoid
319 * the other static instances that many compilers are generating
320 * in all dynamic library or executable when instanciating facet
321 * template class.
322 */
323 template <class _Facet>
_GetFacetId(const _Facet *)324 inline locale::id& _GetFacetId(const _Facet*)
325 { return _Facet::id; }
326
327 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_get<char, istreambuf_iterator<char, char_traits<char> > >*);
328 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_put<char, ostreambuf_iterator<char, char_traits<char> > >*);
329 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_get<char, istreambuf_iterator<char, char_traits<char> > >*);
330 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_put<char, ostreambuf_iterator<char, char_traits<char> > >*);
331 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_get<char, istreambuf_iterator<char, char_traits<char> > >*);
332 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_put<char, ostreambuf_iterator<char, char_traits<char> > >*);
333
334 #ifndef _STLP_NO_WCHAR_T
335 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
336 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
337 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
338 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
339 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
340 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
341 #endif
342
343 template <class _Facet>
_HasFacet(const locale & __loc,const _Facet * __facet)344 inline bool _HasFacet(const locale& __loc, const _Facet* __facet) _STLP_NOTHROW
345 { return (__loc._M_get_facet(_GetFacetId(__facet)) != 0); }
346
347 template <class _Facet>
_UseFacet(const locale & __loc,const _Facet * __facet)348 inline _Facet* _UseFacet(const locale& __loc, const _Facet* __facet)
349 { return __STATIC_CAST(_Facet*, __loc._M_use_facet(_GetFacetId(__facet))); }
350
351 template <class _Facet>
_InsertFacet(locale & __loc,_Facet * __facet)352 inline void _InsertFacet(locale& __loc, _Facet* __facet)
353 { __loc._M_insert(__facet, _GetFacetId(__facet)); }
354
355 _STLP_MOVE_TO_STD_NAMESPACE
356
357 _STLP_END_NAMESPACE
358
359 #endif /* _STLP_INTERNAL_LOCALE_H */
360
361 // Local Variables:
362 // mode:C++
363 // End:
364
365