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#ifndef _LOCALE_CLASSES_H
00041
#define _LOCALE_CLASSES_H 1
00042
00043
#pragma GCC system_header
00044
00045
#include <bits/localefwd.h>
00046
#include <cstring>
00047
#include <string>
00048
#include <bits/atomicity.h>
00049
#include <bits/gthr.h>
00050
00051
namespace std
00052 {
00053
00054
00055
00056
00057
00058
00059
00060
00061
00062
00063
00064
00065
00066
00067 class locale
00068 {
00069
public:
00070
00071
00072 typedef int category;
00073
00074
00075
class facet;
00076
class id;
00077
class _Impl;
00078
00079
friend class facet;
00080
friend class _Impl;
00081
00082
template<
typename _Facet>
00083
friend bool
00084
has_facet(
const locale&) throw();
00085
00086 template<typename _Facet>
00087 friend const _Facet&
00088 use_facet(const
locale&);
00089
00090 template<typename _Cache>
00091 friend struct __use_cache;
00092
00093
00094
00095
00096
00097
00098
00099
00100
00101
00102
00103
00104
00105 static const category none = 0;
00106 static const category
ctype = 1L << 0;
00107 static const category numeric = 1L << 1;
00108 static const category
collate = 1L << 2;
00109 static const category time = 1L << 3;
00110 static const category monetary = 1L << 4;
00111 static const category
messages = 1L << 5;
00112 static const category all = (
ctype | numeric |
collate |
00113 time | monetary |
messages);
00114
00115
00116
00117
00118
00119
00120
00121
00122
00123
00124 locale() throw();
00125
00126
00127
00128
00129
00130
00131
00132
00133 locale(const locale& __other) throw();
00134
00135
00136
00137
00138
00139
00140
00141
00142
00143 explicit
00144 locale(const
char* __s);
00145
00146
00147
00148
00149
00150
00151
00152
00153
00154
00155
00156
00157
00158 locale(const locale& __base, const
char* __s, category __cat);
00159
00160
00161
00162
00163
00164
00165
00166
00167
00168
00169
00170
00171 locale(const locale& __base, const locale& __add, category __cat);
00172
00173
00174
00175
00176
00177
00178
00179
00180
00181
00182
00183 template<typename _Facet>
00184 locale(const locale& __other, _Facet* __f);
00185
00186
00187 ~locale() throw();
00188
00189
00190
00191
00192
00193
00194
00195
00196
00197 const locale&
00198 operator=(const locale& __other) throw();
00199
00200
00201
00202
00203
00204
00205
00206
00207
00208
00209
00210
00211
00212 template<typename _Facet>
00213 locale
00214 combine(const locale& __other) const;
00215
00216
00217
00218
00219
00220
00221
string
00222 name() const;
00223
00224
00225
00226
00227
00228
00229
00230
00231
bool
00232 operator==(const locale& __other) const throw ();
00233
00234
00235
00236
00237
00238
00239
00240 inline
bool
00241 operator!=(const locale& __other) const throw ()
00242 {
return !(this->
operator==(__other)); }
00243
00244
00245
00246
00247
00248
00249
00250
00251
00252
00253
00254
00255
00256
00257
00258
00259
template<
typename _Char,
typename _Traits,
typename _Alloc>
00260
bool
00261 operator()(
const basic_string<_Char, _Traits, _Alloc>& __s1,
00262
const basic_string<_Char, _Traits, _Alloc>& __s2)
const;
00263
00264
00265
00266
00267
00268
00269
00270
00271
00272
00273
00274
00275
static locale
00276 global(
const locale&);
00277
00278
00279
00280
00281
static const locale&
00282
classic();
00283
00284
private:
00285
00286 _Impl* _M_impl;
00287
00288
00289
static _Impl* _S_classic;
00290
00291
00292
static _Impl* _S_global;
00293
00294
00295
00296
00297
00298
static const char*
const*
const _S_categories;
00299
00300
00301
00302
00303
00304
00305
00306
00307
00308
00309
00310
static const size_t _S_categories_size = 6 + _GLIBCXX_NUM_CATEGORIES;
00311
00312
#ifdef __GTHREADS
00313
static __gthread_once_t _S_once;
00314
#endif
00315
00316
explicit
00317
locale(_Impl*) throw();
00318
00319 static
void
00320 _S_initialize();
00321
00322 static
void
00323 _S_initialize_once();
00324
00325 static category
00326 _S_normalize_category(category);
00327
00328
void
00329 _M_coalesce(const
locale& __base, const
locale& __add, category __cat);
00330 };
00331
00332
00333
00334
00335
00336
00337
00338
00339
00340
00341
00342
00343 class
locale::
facet
00344 {
00345
private:
00346
friend class locale;
00347
friend class locale::_Impl;
00348
00349
mutable _Atomic_word _M_refcount;
00350
00351
00352
static __c_locale _S_c_locale;
00353
00354
00355
static const char _S_c_name[2];
00356
00357
#ifdef __GTHREADS
00358
static __gthread_once_t _S_once;
00359
#endif
00360
00361
static void
00362 _S_initialize_once();
00363
00364
protected:
00365
00366
00367
00368
00369
00370
00371
00372
00373
00374
explicit
00375 facet(size_t __refs = 0)
throw() : _M_refcount(__refs ? 1 : 0)
00376 { }
00377
00378
00379
virtual
00380 ~facet();
00381
00382
static void
00383 _S_create_c_locale(__c_locale& __cloc,
const char* __s,
00384 __c_locale __old = 0);
00385
00386
static __c_locale
00387 _S_clone_c_locale(__c_locale& __cloc);
00388
00389
static void
00390 _S_destroy_c_locale(__c_locale& __cloc);
00391
00392
00393
00394
static __c_locale
00395 _S_get_c_locale();
00396
00397
static const char*
00398 _S_get_c_name();
00399
00400
private:
00401
inline void
00402 _M_add_reference() const throw()
00403 { __gnu_cxx::__atomic_add(&_M_refcount, 1); }
00404
00405
inline void
00406 _M_remove_reference() const throw()
00407 {
00408
if (__gnu_cxx::__exchange_and_add(&_M_refcount, -1) == 1)
00409 {
00410
try
00411 {
delete this; }
00412
catch (...)
00413 { }
00414 }
00415 }
00416
00417 facet(
const facet&);
00418
00419 facet&
00420
operator=(
const facet&);
00421 };
00422
00423
00424
00425
00426
00427
00428
00429
00430
00431
00432
00433
00434 class locale::id
00435 {
00436
private:
00437
friend class locale;
00438
friend class locale::_Impl;
00439
00440
template<
typename _Facet>
00441
friend const _Facet&
00442
use_facet(
const locale&);
00443
00444
template<
typename _Facet>
00445
friend bool
00446
has_facet(
const locale&)
throw ();
00447
00448
00449
00450
00451
mutable size_t _M_index;
00452
00453
00454
static _Atomic_word _S_refcount;
00455
00456
void
00457 operator=(
const id&);
00458
00459
id(
const id&);
00460
00461
public:
00462
00463
00464
00465 id() { }
00466
00467 size_t
00468 _M_id() const;
00469 };
00470
00471
00472
00473 class
locale::_Impl
00474 {
00475
public:
00476
00477
friend class locale;
00478
friend class locale::facet;
00479
00480
template<
typename _Facet>
00481
friend bool
00482
has_facet(
const locale&) throw();
00483
00484 template<typename _Facet>
00485 friend const _Facet&
00486 use_facet(const
locale&);
00487
00488 template<typename _Cache>
00489 friend struct __use_cache;
00490
00491 private:
00492
00493 _Atomic_word _M_refcount;
00494 const
facet** _M_facets;
00495 size_t _M_facets_size;
00496 const
facet** _M_caches;
00497
char** _M_names;
00498 static const locale::
id* const _S_id_ctype[];
00499 static const locale::
id* const _S_id_numeric[];
00500 static const locale::
id* const _S_id_collate[];
00501 static const locale::
id* const _S_id_time[];
00502 static const locale::
id* const _S_id_monetary[];
00503 static const locale::
id* const _S_id_messages[];
00504 static const locale::
id* const* const _S_facet_categories[];
00505
00506 inline
void
00507 _M_add_reference() throw()
00508 { __gnu_cxx::__atomic_add(&_M_refcount, 1); }
00509
00510
inline void
00511 _M_remove_reference() throw()
00512 {
00513
if (__gnu_cxx::__exchange_and_add(&_M_refcount, -1) == 1)
00514 {
00515
try
00516 {
delete this; }
00517
catch(...)
00518 { }
00519 }
00520 }
00521
00522 _Impl(
const _Impl&, size_t);
00523 _Impl(
const char*, size_t);
00524 _Impl(size_t) throw();
00525
00526 ~_Impl() throw();
00527
00528 _Impl(const _Impl&);
00529
00530
void
00531 operator=(const _Impl&);
00532
00533 inline
bool
00534 _M_check_same_name()
00535 {
00536
bool __ret =
true;
00537
if (_M_names[1])
00538
00539
for (size_t __i = 0; __ret && __i < _S_categories_size - 1; ++__i)
00540 __ret = std::strcmp(_M_names[__i], _M_names[__i + 1]) == 0;
00541
return __ret;
00542 }
00543
00544
void
00545 _M_replace_categories(
const _Impl*, category);
00546
00547
void
00548 _M_replace_category(
const _Impl*,
const locale::id*
const*);
00549
00550
void
00551 _M_replace_facet(
const _Impl*,
const locale::id*);
00552
00553
void
00554 _M_install_facet(
const locale::id*,
const facet*);
00555
00556
template<
typename _Facet>
00557
inline void
00558 _M_init_facet(_Facet* __facet)
00559 { _M_install_facet(&_Facet::id, __facet); }
00560
00561
void
00562 _M_install_cache(
const facet* __cache, size_t __index)
throw()
00563 {
00564 __cache->_M_add_reference();
00565 _M_caches[__index] = __cache;
00566 }
00567 };
00568
00569
template<
typename _Facet>
00570 locale::locale(
const locale& __other, _Facet* __f)
00571 {
00572 _M_impl =
new _Impl(*__other._M_impl, 1);
00573
00574
try
00575 { _M_impl->_M_install_facet(&_Facet::id, __f); }
00576
catch(...)
00577 {
00578 _M_impl->_M_remove_reference();
00579 __throw_exception_again;
00580 }
00581
delete [] _M_impl->_M_names[0];
00582 _M_impl->_M_names[0] = 0;
00583 }
00584 }
00585
00586
#endif