1 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
2 // Free Software Foundation, Inc.
4 // This file is part of the GNU ISO C++ Library. This library is free
5 // software; you can redistribute it and/or modify it under the
6 // terms of the GNU General Public License as published by the
7 // Free Software Foundation; either version 2, or (at your option)
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License along
16 // with this library; see the file COPYING. If not, write to the Free
17 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20 // As a special exception, you may use this file as part of a free software
21 // library without restriction. Specifically, if other files instantiate
22 // templates or use macros or inline functions from this file, or you compile
23 // this file and link it with other files to produce an executable, this
24 // file does not by itself cause the resulting executable to be covered by
25 // the GNU General Public License. This exception does not however
26 // invalidate any other reasons why the executable file might be covered by
27 // the GNU General Public License.
33 #include <cwctype> // For towupper, etc.
39 #include <bits/atomicity.h>
43 // Defined in globals.cc.
44 extern locale c_locale;
45 extern locale::_Impl c_locale_impl;
46 extern locale::facet** facet_vec;
48 // Definitions for static const data members of locale.
49 const locale::category locale::none;
50 const locale::category locale::ctype;
51 const locale::category locale::numeric;
52 const locale::category locale::collate;
53 const locale::category locale::time;
54 const locale::category locale::monetary;
55 const locale::category locale::messages;
56 const locale::category locale::all;
58 locale::_Impl* locale::_S_classic;
59 locale::_Impl* locale::_S_global;
60 const size_t locale::_S_num_categories;
62 // Definitions for locale::id of standard facets that are specialized.
63 locale::id ctype<char>::id;
64 locale::id codecvt<char, char, mbstate_t>::id;
66 #ifdef _GLIBCPP_USE_WCHAR_T
67 locale::id ctype<wchar_t>::id;
68 locale::id codecvt<wchar_t, char, mbstate_t>::id;
71 // Definitions for static const data members of locale::id
72 _Atomic_word locale::id::_S_highwater; // init'd to 0 by linker
74 // Definitions for static const data members of locale::_Impl
75 const locale::id* const
76 locale::_Impl::_S_id_ctype[] =
78 &std::ctype<char>::id,
79 &codecvt<char, char, mbstate_t>::id,
80 #ifdef _GLIBCPP_USE_WCHAR_T
81 &std::ctype<wchar_t>::id,
82 &codecvt<wchar_t, char, mbstate_t>::id,
87 const locale::id* const
88 locale::_Impl::_S_id_numeric[] =
93 #ifdef _GLIBCPP_USE_WCHAR_T
94 &num_get<wchar_t>::id,
95 &num_put<wchar_t>::id,
96 &numpunct<wchar_t>::id,
101 const locale::id* const
102 locale::_Impl::_S_id_collate[] =
104 &std::collate<char>::id,
105 #ifdef _GLIBCPP_USE_WCHAR_T
106 &std::collate<wchar_t>::id,
111 const locale::id* const
112 locale::_Impl::_S_id_time[] =
114 &__timepunct<char>::id,
117 #ifdef _GLIBCPP_USE_WCHAR_T
118 &__timepunct<wchar_t>::id,
119 &time_get<wchar_t>::id,
120 &time_put<wchar_t>::id,
125 const locale::id* const
126 locale::_Impl::_S_id_monetary[] =
128 &money_get<char>::id,
129 &money_put<char>::id,
130 &moneypunct<char, false>::id,
131 &moneypunct<char, true >::id,
132 #ifdef _GLIBCPP_USE_WCHAR_T
133 &money_get<wchar_t>::id,
134 &money_put<wchar_t>::id,
135 &moneypunct<wchar_t, false>::id,
136 &moneypunct<wchar_t, true >::id,
141 const locale::id* const
142 locale::_Impl::_S_id_messages[] =
144 &std::messages<char>::id,
145 #ifdef _GLIBCPP_USE_WCHAR_T
146 &std::messages<wchar_t>::id,
151 const locale::id* const* const
152 locale::_Impl::_S_facet_categories[] =
154 // Order must match the decl order in class locale.
155 locale::_Impl::_S_id_ctype,
156 locale::_Impl::_S_id_numeric,
157 locale::_Impl::_S_id_collate,
158 locale::_Impl::_S_id_monetary,
159 locale::_Impl::_S_id_time,
160 locale::_Impl::_S_id_messages,
164 locale::~locale() throw()
165 { _M_impl->_M_remove_reference(); }
168 locale::_M_coalesce(const locale& __base, const locale& __add,
171 __cat = _S_normalize_category(__cat);
172 _M_impl = new _Impl(*__base._M_impl, 1);
175 { _M_impl->_M_replace_categories(__add._M_impl, __cat); }
178 _M_impl->_M_remove_reference();
179 __throw_exception_again;
183 locale::locale() throw()
186 (_M_impl = _S_global)->_M_add_reference();
189 locale::locale(const locale& __other) throw()
190 { (_M_impl = __other._M_impl)->_M_add_reference(); }
192 // This is used to initialize global and classic locales, and
193 // assumes that the _Impl objects are constructed correctly.
194 locale::locale(_Impl* __ip) throw() : _M_impl(__ip)
197 locale::locale(const char* __s)
202 if (strcmp(__s, "C") == 0 || strcmp(__s, "POSIX") == 0)
203 (_M_impl = _S_classic)->_M_add_reference();
204 else if (strcmp(__s, "") == 0)
205 _M_impl = new _Impl(setlocale(LC_ALL, NULL), 1);
207 _M_impl = new _Impl(__s, 1);
210 __throw_runtime_error("attempt to create locale from NULL name");
213 locale::locale(const locale& __base, const char* __s, category __cat)
215 // NB: There are complicated, yet more efficient ways to do
216 // this. Building up locales on a per-category way is tedious, so
217 // let's do it this way until people complain.
219 _M_coalesce(__base, __add, __cat);
222 locale::locale(const locale& __base, const locale& __add, category __cat)
223 { _M_coalesce(__base, __add, __cat); }
226 locale::operator==(const locale& __rhs) const throw()
228 string __name = this->name();
229 return (_M_impl == __rhs._M_impl
230 || (__name != "*" && __name == __rhs.name()));
234 locale::operator=(const locale& __other) throw()
236 __other._M_impl->_M_add_reference();
237 _M_impl->_M_remove_reference();
238 _M_impl = __other._M_impl;
243 locale::global(const locale& __other)
247 _Impl* __old = _S_global;
248 __other._M_impl->_M_add_reference();
249 _S_global = __other._M_impl;
250 if (_S_global->_M_check_same_name()
251 && (strcmp(_S_global->_M_names[0], "*") != 0))
252 setlocale(LC_ALL, __other.name().c_str());
254 // Reference count sanity check: one reference removed for the
255 // subsition of __other locale, one added by return-by-value. Net
256 // difference: zero. When the returned locale object's destrutor
257 // is called, then the reference count is decremented and possibly
259 return locale(__old);
265 // Need some kind of separator character. This one was pretty much
266 // arbitrarily chosen as to not conflict with glibc locales: the
267 // exact formatting is not set in stone.
268 const char __separator = '|';
271 if (_M_impl->_M_check_same_name())
272 __ret = _M_impl->_M_names[0];
275 for (size_t i = 0; i < _S_num_categories; ++i)
277 __ret += __separator;
278 __ret += _M_impl->_M_names[i];
289 static _STL_mutex_lock __lock __STL_MUTEX_INITIALIZER;
290 _STL_auto_lock __auto(__lock);
294 // 26 Standard facets, 2 references.
295 // One reference for _M_classic, one for _M_global
296 facet** f = new(&facet_vec) facet*[_GLIBCPP_NUM_FACETS];
297 for (size_t __i = 0; __i < _GLIBCPP_NUM_FACETS; ++__i)
300 _S_classic = new (&c_locale_impl) _Impl(f, 2, true);
301 _S_global = _S_classic;
302 new (&c_locale) locale(_S_classic);
306 // Just call destructor, so that locale_impl_c's memory is
307 // not deallocated via a call to delete.
309 _S_classic->~_Impl();
310 _S_classic = _S_global = 0;
311 __throw_exception_again;
318 locale::_S_normalize_category(category __cat)
321 if (__cat == none || (__cat & all) && !(__cat & ~all))
325 // NB: May be a C-style "LC_ALL" category; convert.
343 #ifdef _GLIBCPP_HAVE_LC_MESSAGES
352 __throw_runtime_error("bad locale category");
359 locale::facet::_S_c_locale;
365 facet(size_t __refs) throw() : _M_references(__refs)
368 _S_create_c_locale(_S_c_locale, "C");
373 _M_add_reference() throw()
374 { __atomic_add(&_M_references, 1); }
378 _M_remove_reference() throw()
380 if (__exchange_and_add(&_M_references, -1) == 0)
392 // Definitions for static const data members of ctype_base.
393 const ctype_base::mask ctype_base::space;
394 const ctype_base::mask ctype_base::print;
395 const ctype_base::mask ctype_base::cntrl;
396 const ctype_base::mask ctype_base::upper;
397 const ctype_base::mask ctype_base::lower;
398 const ctype_base::mask ctype_base::alpha;
399 const ctype_base::mask ctype_base::digit;
400 const ctype_base::mask ctype_base::punct;
401 const ctype_base::mask ctype_base::xdigit;
402 const ctype_base::mask ctype_base::alnum;
403 const ctype_base::mask ctype_base::graph;
405 // Platform-specific initialization code for ctype tables.
406 #include <bits/ctype_noninline.h>
408 const size_t ctype<char>::table_size;
410 ctype<char>::~ctype()
412 if (_M_c_locale_ctype != _S_c_locale)
413 _S_destroy_c_locale(_M_c_locale_ctype);
415 delete[] this->table();
418 // These are dummy placeholders as these virtual functions are never called.
420 ctype<char>::do_is(mask, char_type) const
424 ctype<char>::do_is(const char_type* __c, const char_type*, mask*) const
428 ctype<char>::do_scan_is(mask, const char_type* __c, const char_type*) const
432 ctype<char>::do_scan_not(mask, const char_type* __c, const char_type*) const
436 ctype<char>::do_widen(char __c) const
440 ctype<char>::do_widen(const char* __lo, const char* __hi, char* __dest) const
442 memcpy(__dest, __lo, __hi - __lo);
447 ctype<char>::do_narrow(char __c, char /*__dfault*/) const
451 ctype<char>::do_narrow(const char* __lo, const char* __hi,
452 char /*__dfault*/, char* __dest) const
454 memcpy(__dest, __lo, __hi - __lo);
458 #ifdef _GLIBCPP_USE_WCHAR_T
459 ctype<wchar_t>::ctype(size_t __refs)
460 : __ctype_abstract_base<wchar_t>(__refs)
461 { _M_c_locale_ctype = _S_c_locale; }
463 ctype<wchar_t>::ctype(__c_locale __cloc, size_t __refs)
464 : __ctype_abstract_base<wchar_t>(__refs)
465 { _M_c_locale_ctype = _S_clone_c_locale(__cloc); }
467 ctype<wchar_t>::~ctype()
469 if (_M_c_locale_ctype != _S_c_locale)
470 _S_destroy_c_locale(_M_c_locale_ctype);
474 ctype_byname<wchar_t>::ctype_byname(const char* __s, size_t __refs)
475 : ctype<wchar_t>(__refs)
477 if (_M_c_locale_ctype != _S_c_locale)
478 _S_destroy_c_locale(_M_c_locale_ctype);
479 _S_create_c_locale(_M_c_locale_ctype, __s);
483 // Definitions for static const data members of time_base
486 __timepunct<char>::_S_timezones[14] =
488 "GMT", "HST", "AKST", "PST", "MST", "CST", "EST", "AST", "NST", "CET",
489 "IST", "EET", "CST", "JST"
492 #ifdef _GLIBCPP_USE_WCHAR_T
495 __timepunct<wchar_t>::_S_timezones[14] =
497 L"GMT", L"HST", L"AKST", L"PST", L"MST", L"CST", L"EST", L"AST",
498 L"NST", L"CET", L"IST", L"EET", L"CST", L"JST"
502 // Definitions for static const data members of money_base
503 const money_base::pattern
504 money_base::_S_default_pattern = { {symbol, sign, none, value} };
508 use_facet<ctype<char> >(const locale& __loc)
510 size_t __i = ctype<char>::id._M_id();
511 const locale::_Impl* __tmp = __loc._M_impl;
512 return static_cast<const ctype<char>&>(*(__tmp->_M_facets[__i]));
515 #ifdef _GLIBCPP_USE_WCHAR_T
517 const ctype<wchar_t>&
518 use_facet<ctype<wchar_t> >(const locale& __loc)
520 size_t __i = ctype<wchar_t>::id._M_id();
521 const locale::_Impl* __tmp = __loc._M_impl;
522 return static_cast<const ctype<wchar_t>&>(*(__tmp->_M_facets[__i]));
526 const char __num_base::_S_atoms[] = "0123456789eEabcdfABCDF";
529 __num_base::_S_format_float(const ios_base& __io, char* __fptr, char __mod,
532 bool __incl_prec = false;
533 ios_base::fmtflags __flags = __io.flags();
535 // [22.2.2.2.2] Table 60
536 if (__flags & ios_base::showpos)
538 if (__flags & ios_base::showpoint)
540 // As per [22.2.2.2.2.11]
541 if (__flags & ios_base::fixed || __prec > 0)
549 ios_base::fmtflags __fltfield = __flags & ios_base::floatfield;
550 // [22.2.2.2.2] Table 58
551 if (__fltfield == ios_base::fixed)
553 else if (__fltfield == ios_base::scientific)
554 *__fptr++ = (__flags & ios_base::uppercase) ? 'E' : 'e';
556 *__fptr++ = (__flags & ios_base::uppercase) ? 'G' : 'g';
562 __num_base::_S_format_int(const ios_base& __io, char* __fptr, char __mod,
565 ios_base::fmtflags __flags = __io.flags();
567 // [22.2.2.2.2] Table 60
568 if (__flags & ios_base::showpos)
570 if (__flags & ios_base::showbase)
574 // For long long types.
578 ios_base::fmtflags __bsefield = __flags & ios_base::basefield;
579 if (__bsefield == ios_base::hex)
580 *__fptr++ = (__flags & ios_base::uppercase) ? 'X' : 'x';
581 else if (__bsefield == ios_base::oct)