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/_string.h>
43
44 #include <stl/_facets_fwd.h>
45
46 _STLP_BEGIN_NAMESPACE
47
48 class _Locale_impl; // Forward declaration of opaque type.
49 class locale;
50
51 template <class _CharT, class _Traits, class _Alloc>
52 bool __locale_do_operator_call(const locale& __loc,
53 const basic_string<_CharT, _Traits, _Alloc>& __x,
54 const basic_string<_CharT, _Traits, _Alloc>& __y);
55
56 _STLP_DECLSPEC _Locale_impl * _STLP_CALL _get_Locale_impl( _Locale_impl *locimpl );
57 _STLP_DECLSPEC _Locale_impl * _STLP_CALL _copy_Nameless_Locale_impl( _Locale_impl *locimpl );
58
59 _STLP_MOVE_TO_PRIV_NAMESPACE
60
61 template <class _Facet>
62 bool _HasFacet(const locale& __loc, const _Facet* __facet) _STLP_NOTHROW;
63
64 template <class _Facet>
65 _Facet* _UseFacet(const locale& __loc, const _Facet* __facet);
66
67 template <class _Facet>
68 void _InsertFacet(locale& __loc, _Facet* __facet);
69
70 _STLP_MOVE_TO_STD_NAMESPACE
71
72 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \
73 defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
74 # define locale _STLP_NO_MEM_T_NAME(loc)
75 #endif
76
77 class _STLP_CLASS_DECLSPEC locale {
78 public:
79 // types:
80 class _STLP_CLASS_DECLSPEC facet : protected _Refcount_Base {
81 protected:
82 /* Here we filter __init_count user value to 0 or 1 because __init_count is a
83 * size_t instance and _Refcount_Base use __stl_atomic_t instances that might
84 * have lower sizeof and generate roll issues. 1 is enough to keep the facet
85 * alive when required. */
86 explicit facet(size_t __init_count = 0) : _Refcount_Base( __init_count == 0 ? 0 : 1 ) {}
87 virtual ~facet();
88 friend class locale;
89 friend class _Locale_impl;
90 friend facet * _STLP_CALL _get_facet( facet * );
91 friend void _STLP_CALL _release_facet( facet *& );
92
93 private: // Invalidate assignment and copying.
94 facet(const facet& ) /* : _Refcount_Base(1) {} */;
95 void operator=(const facet&);
96 };
97
98 #if defined (__MVS__) || defined (__OS400__)
99 struct
100 #else
101 class
102 #endif
103 _STLP_CLASS_DECLSPEC id {
104 public:
105 size_t _M_index;
106 static size_t _S_max;
107 };
108
109 typedef int category;
110 _STLP_STATIC_CONSTANT(category, none = 0x000);
111 _STLP_STATIC_CONSTANT(category, collate = 0x010);
112 _STLP_STATIC_CONSTANT(category, ctype = 0x020);
113 _STLP_STATIC_CONSTANT(category, monetary = 0x040);
114 _STLP_STATIC_CONSTANT(category, numeric = 0x100);
115 _STLP_STATIC_CONSTANT(category, time = 0x200);
116 _STLP_STATIC_CONSTANT(category, messages = 0x400);
117 _STLP_STATIC_CONSTANT(category, all = collate | ctype | monetary | numeric | time | messages);
118
119 // construct/copy/destroy:
120 locale() _STLP_NOTHROW;
121 locale(const locale&) _STLP_NOTHROW;
122 explicit locale(const char *);
123 locale(const locale&, const char*, category);
124
125 #if defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
126 template <class _Facet>
locale(const locale & __loc,_Facet * __f)127 locale(const locale& __loc, _Facet* __f) {
128 if ( __f != 0 ) {
129 this->_M_impl = _get_Locale_impl( _copy_Nameless_Locale_impl( __loc._M_impl ) );
130 _STLP_PRIV _InsertFacet(*this, __f);
131 } else {
132 this->_M_impl = _get_Locale_impl( __loc._M_impl );
133 }
134 }
135 #endif
136
137 protected:
138 // those are for internal use
139 locale(_Locale_impl*);
140
141 public:
142 locale(const locale&, const locale&, category);
143 const locale& operator=(const locale&) _STLP_NOTHROW;
144
145 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
146 protected:
147 #endif
148 ~locale() _STLP_NOTHROW;
149
150 public:
151 #if defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS) && \
152 !defined(_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
153 template <class _Facet>
combine(const locale & __loc)154 locale combine(const locale& __loc) const {
155 _Facet *__facet = 0;
156 if (!_STLP_PRIV _HasFacet(__loc, __facet))
157 _M_throw_on_combine_error(__loc.name());
158
159 return locale(*this, _STLP_PRIV _UseFacet(__loc, __facet));
160 }
161 #endif
162
163 // locale operations:
164 string name() const;
165
166 bool operator==(const locale&) const;
167 bool operator!=(const locale&) const;
168
169 #if !defined (_STLP_MEMBER_TEMPLATES) || defined (_STLP_INLINE_MEMBER_TEMPLATES) || (defined(__MWERKS__) && __MWERKS__ <= 0x2301)
170 bool operator()(const string& __x, const string& __y) const;
171 # ifndef _STLP_NO_WCHAR_T
172 bool operator()(const wstring& __x, const wstring& __y) const;
173 # endif
174 #elif !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
175 template <class _CharT, class _Traits, class _Alloc>
operator()176 bool operator()(const basic_string<_CharT, _Traits, _Alloc>& __x,
177 const basic_string<_CharT, _Traits, _Alloc>& __y) const
178 { return __locale_do_operator_call(*this, __x, __y); }
179 #endif
180
181 // global locale objects:
182 #if !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
183 static locale _STLP_CALL global(const locale&);
184 #else
185 static _Locale_impl* _STLP_CALL global(const locale&);
186 #endif
187 static const locale& _STLP_CALL classic();
188
189 //protected: // Helper functions for locale globals.
190 facet* _M_get_facet(const id&) const;
191 // same, but throws
192 facet* _M_use_facet(const id&) const;
193 static void _STLP_FUNCTION_THROWS _STLP_CALL _M_throw_on_combine_error(const string& name);
194 static void _STLP_FUNCTION_THROWS _STLP_CALL _M_throw_on_null_name();
195 static void _STLP_FUNCTION_THROWS _STLP_CALL _M_throw_on_creation_failure(int __err_code,
196 const char* name, const char* facet);
197
198 //protected: // More helper functions.
199 void _M_insert(facet* __f, id& __id);
200
201 // friends:
202 friend class _Locale_impl;
203
204 protected: // Data members
205 _Locale_impl* _M_impl;
_M_get_impl()206 _Locale_impl* _M_get_impl() const { return _M_impl; }
207 };
208
209 #if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND) || \
210 defined (_STLP_SIGNAL_RUNTIME_COMPATIBILITY) || defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
211 # undef locale
212 # define _Locale _STLP_NO_MEM_T_NAME(loc)
213
214 class locale : public _Locale {
215 public:
216
217 // construct/copy/destroy:
locale()218 locale() _STLP_NOTHROW {
219 #if defined (_STLP_CHECK_RUNTIME_COMPATIBILITY)
220 _STLP_CHECK_RUNTIME_COMPATIBILITY();
221 #endif
222 }
locale(const locale & __loc)223 locale(const locale& __loc) _STLP_NOTHROW : _Locale(__loc) {}
locale(const char * __str)224 explicit locale(const char *__str) : _Locale(__str) {}
locale(const locale & __loc,const char * __str,category __cat)225 locale(const locale& __loc, const char* __str, category __cat)
226 : _Locale(__loc, __str, __cat) {}
227
228 template <class _Facet>
locale(const locale & __loc,_Facet * __f)229 locale(const locale& __loc, _Facet* __f)
230 : _Locale(__f != 0 ? _copy_Nameless_Locale_impl(__loc._M_impl) : __loc._M_impl) {
231 if ( __f != 0 ) {
232 _STLP_PRIV _InsertFacet(*this, __f);
233 }
234 }
235
236 private:
237 // those are for internal use
locale(_Locale_impl * __impl)238 locale(_Locale_impl* __impl) : _Locale(__impl) {}
locale(const _Locale & __loc)239 locale(const _Locale& __loc) : _Locale(__loc) {}
240
241 public:
242
locale(const locale & __loc1,const locale & __loc2,category __cat)243 locale(const locale& __loc1, const locale& __loc2, category __cat)
244 : _Locale(__loc1, __loc2, __cat) {}
245
246 const locale& operator=(const locale& __loc) _STLP_NOTHROW {
247 _Locale::operator=(__loc);
248 return *this;
249 }
250
251 template <class _Facet>
combine(const locale & __loc)252 locale combine(const locale& __loc) const {
253 _Facet *__facet = 0;
254 if (!_STLP_PRIV _HasFacet(__loc, __facet))
255 _M_throw_on_combine_error(__loc.name());
256
257 return locale(*this, _STLP_PRIV _UseFacet(__loc, __facet));
258 }
259
260 // locale operations:
261 bool operator==(const locale& __loc) const { return _Locale::operator==(__loc); }
262 bool operator!=(const locale& __loc) const { return _Locale::operator!=(__loc); }
263
264 template <class _CharT, class _Traits, class _Alloc>
operator()265 bool operator()(const basic_string<_CharT, _Traits, _Alloc>& __x,
266 const basic_string<_CharT, _Traits, _Alloc>& __y) const
267 { return __locale_do_operator_call(*this, __x, __y); }
268
269 // global locale objects:
global(const locale & __loc)270 static locale _STLP_CALL global(const locale& __loc) {
271 return _Locale::global(__loc);
272 }
classic()273 static const locale& _STLP_CALL classic() {
274 return __STATIC_CAST(const locale&, _Locale::classic());
275 }
276
277 // friends:
278 friend class _Locale_impl;
279 };
280
281 # undef _Locale
282 #endif
283
284 //----------------------------------------------------------------------
285 // locale globals
286
287 template <class _Facet>
288 inline const _Facet&
289 #ifdef _STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS
290 _Use_facet<_Facet>::operator *() const
291 #else
292 use_facet(const locale& __loc)
293 #endif
294 {
295 _Facet *__facet = 0;
296 return *(_STLP_PRIV _UseFacet(__loc, __facet));
297 }
298
299 template <class _Facet>
300 #ifdef _STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS
301 struct has_facet {
302 const locale& __loc;
has_facethas_facet303 has_facet(const locale& __p_loc) : __loc(__p_loc) {}
304 operator bool() const _STLP_NOTHROW
305 #else
306 inline bool has_facet(const locale& __loc) _STLP_NOTHROW
307 #endif
308 {
309 _Facet *__facet = 0;
310 return _STLP_PRIV _HasFacet(__loc, __facet);
311 }
312
313 #ifdef _STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS
314 }; // close class definition
315 #endif
316
317 _STLP_MOVE_TO_PRIV_NAMESPACE
318
319 /* _GetFacetId is a helper function that allow delaying access to
320 * facet id static instance in the library source code to avoid
321 * the other static instances that many compilers are generating
322 * in all dynamic library or executable when instanciating facet
323 * template class.
324 */
325 template <class _Facet>
_GetFacetId(const _Facet *)326 inline locale::id& _GetFacetId(const _Facet*)
327 { return _Facet::id; }
328
329 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_get<char, istreambuf_iterator<char, char_traits<char> > >*);
330 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_put<char, ostreambuf_iterator<char, char_traits<char> > >*);
331 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_get<char, istreambuf_iterator<char, char_traits<char> > >*);
332 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_put<char, ostreambuf_iterator<char, char_traits<char> > >*);
333 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_get<char, istreambuf_iterator<char, char_traits<char> > >*);
334 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_put<char, ostreambuf_iterator<char, char_traits<char> > >*);
335
336 #ifndef _STLP_NO_WCHAR_T
337 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
338 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
339 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
340 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const num_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
341 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
342 _STLP_DECLSPEC locale::id& _STLP_CALL _GetFacetId(const time_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > >*);
343 #endif
344
345 template <class _Facet>
_HasFacet(const locale & __loc,const _Facet * __facet)346 inline bool _HasFacet(const locale& __loc, const _Facet* __facet) _STLP_NOTHROW
347 { return (__loc._M_get_facet(_GetFacetId(__facet)) != 0); }
348
349 template <class _Facet>
_UseFacet(const locale & __loc,const _Facet * __facet)350 inline _Facet* _UseFacet(const locale& __loc, const _Facet* __facet)
351 { return __STATIC_CAST(_Facet*, __loc._M_use_facet(_GetFacetId(__facet))); }
352
353 template <class _Facet>
_InsertFacet(locale & __loc,_Facet * __facet)354 inline void _InsertFacet(locale& __loc, _Facet* __facet)
355 { __loc._M_insert(__facet, _GetFacetId(__facet)); }
356
357 _STLP_MOVE_TO_STD_NAMESPACE
358
359 _STLP_END_NAMESPACE
360
361 #endif /* _STLP_INTERNAL_LOCALE_H */
362
363 // Local Variables:
364 // mode:C++
365 // End:
366
367