| // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
| // 2006, 2007, 2008, 2009 |
| // Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| #include <clocale> |
| #include <cstring> |
| #include <cstdlib> // For getenv |
| #include <cctype> |
| #include <cwctype> // For towupper, etc. |
| #include <locale> |
| #include <ext/concurrence.h> |
| |
| namespace |
| { |
| __gnu_cxx::__mutex& |
| get_locale_cache_mutex() |
| { |
| static __gnu_cxx::__mutex locale_cache_mutex; |
| return locale_cache_mutex; |
| } |
| } // anonymous namespace |
| |
| // XXX GLIBCXX_ABI Deprecated |
| #ifdef _GLIBCXX_LONG_DOUBLE_COMPAT |
| # define _GLIBCXX_LOC_ID(mangled) extern std::locale::id mangled |
| _GLIBCXX_LOC_ID (_ZNSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| _GLIBCXX_LOC_ID (_ZNSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| _GLIBCXX_LOC_ID (_ZNSt9money_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| _GLIBCXX_LOC_ID (_ZNSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| # ifdef _GLIBCXX_USE_WCHAR_T |
| _GLIBCXX_LOC_ID (_ZNSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| _GLIBCXX_LOC_ID (_ZNSt7num_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| _GLIBCXX_LOC_ID (_ZNSt9money_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| _GLIBCXX_LOC_ID (_ZNSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| # endif |
| #endif |
| |
| _GLIBCXX_BEGIN_NAMESPACE(std) |
| |
| // Definitions for static const data members of locale. |
| const locale::category locale::none; |
| const locale::category locale::ctype; |
| const locale::category locale::numeric; |
| const locale::category locale::collate; |
| const locale::category locale::time; |
| const locale::category locale::monetary; |
| const locale::category locale::messages; |
| const locale::category locale::all; |
| |
| // These are no longer exported. |
| locale::_Impl* locale::_S_classic; |
| locale::_Impl* locale::_S_global; |
| |
| #ifdef __GTHREADS |
| __gthread_once_t locale::_S_once = __GTHREAD_ONCE_INIT; |
| #endif |
| |
| locale::locale(const locale& __other) throw() |
| : _M_impl(__other._M_impl) |
| { _M_impl->_M_add_reference(); } |
| |
| // This is used to initialize global and classic locales, and |
| // assumes that the _Impl objects are constructed correctly. |
| // The lack of a reference increment is intentional. |
| locale::locale(_Impl* __ip) throw() : _M_impl(__ip) |
| { } |
| |
| locale::~locale() throw() |
| { _M_impl->_M_remove_reference(); } |
| |
| bool |
| locale::operator==(const locale& __rhs) const throw() |
| { |
| // Deal first with the common cases, fast to process: refcopies, |
| // unnamed (i.e., !_M_names[0]), "simple" (!_M_names[1] => all the |
| // categories same name, i.e., _M_names[0]). Otherwise fall back |
| // to the general locale::name(). |
| bool __ret; |
| if (_M_impl == __rhs._M_impl) |
| __ret = true; |
| else if (!_M_impl->_M_names[0] || !__rhs._M_impl->_M_names[0] |
| || std::strcmp(_M_impl->_M_names[0], |
| __rhs._M_impl->_M_names[0]) != 0) |
| __ret = false; |
| else if (!_M_impl->_M_names[1] && !__rhs._M_impl->_M_names[1]) |
| __ret = true; |
| else |
| __ret = this->name() == __rhs.name(); |
| return __ret; |
| } |
| |
| const locale& |
| locale::operator=(const locale& __other) throw() |
| { |
| __other._M_impl->_M_add_reference(); |
| _M_impl->_M_remove_reference(); |
| _M_impl = __other._M_impl; |
| return *this; |
| } |
| |
| string |
| locale::name() const |
| { |
| string __ret; |
| if (!_M_impl->_M_names[0]) |
| __ret = '*'; |
| else if (_M_impl->_M_check_same_name()) |
| __ret = _M_impl->_M_names[0]; |
| else |
| { |
| __ret.reserve(128); |
| __ret += _S_categories[0]; |
| __ret += '='; |
| __ret += _M_impl->_M_names[0]; |
| for (size_t __i = 1; __i < _S_categories_size; ++__i) |
| { |
| __ret += ';'; |
| __ret += _S_categories[__i]; |
| __ret += '='; |
| __ret += _M_impl->_M_names[__i]; |
| } |
| } |
| return __ret; |
| } |
| |
| locale::category |
| locale::_S_normalize_category(category __cat) |
| { |
| int __ret = 0; |
| if (__cat == none || ((__cat & all) && !(__cat & ~all))) |
| __ret = __cat; |
| else |
| { |
| // NB: May be a C-style "LC_ALL" category; convert. |
| switch (__cat) |
| { |
| case LC_COLLATE: |
| __ret = collate; |
| break; |
| case LC_CTYPE: |
| __ret = ctype; |
| break; |
| case LC_MONETARY: |
| __ret = monetary; |
| break; |
| case LC_NUMERIC: |
| __ret = numeric; |
| break; |
| case LC_TIME: |
| __ret = time; |
| break; |
| #ifdef _GLIBCXX_HAVE_LC_MESSAGES |
| case LC_MESSAGES: |
| __ret = messages; |
| break; |
| #endif |
| case LC_ALL: |
| __ret = all; |
| break; |
| default: |
| __throw_runtime_error(__N("locale::_S_normalize_category " |
| "category not found")); |
| } |
| } |
| return __ret; |
| } |
| |
| // locale::facet |
| __c_locale locale::facet::_S_c_locale; |
| |
| const char locale::facet::_S_c_name[2] = "C"; |
| |
| #ifdef __GTHREADS |
| __gthread_once_t locale::facet::_S_once = __GTHREAD_ONCE_INIT; |
| #endif |
| |
| void |
| locale::facet::_S_initialize_once() |
| { |
| // Initialize the underlying locale model. |
| _S_create_c_locale(_S_c_locale, _S_c_name); |
| } |
| |
| __c_locale |
| locale::facet::_S_get_c_locale() |
| { |
| #ifdef __GHTREADS |
| if (__gthread_active_p()) |
| __gthread_once(&_S_once, _S_initialize_once); |
| else |
| #endif |
| { |
| if (!_S_c_locale) |
| _S_initialize_once(); |
| } |
| return _S_c_locale; |
| } |
| |
| const char* |
| locale::facet::_S_get_c_name() |
| { return _S_c_name; } |
| |
| locale::facet:: |
| ~facet() { } |
| |
| // locale::_Impl |
| locale::_Impl:: |
| ~_Impl() throw() |
| { |
| if (_M_facets) |
| for (size_t __i = 0; __i < _M_facets_size; ++__i) |
| if (_M_facets[__i]) |
| _M_facets[__i]->_M_remove_reference(); |
| delete [] _M_facets; |
| |
| if (_M_caches) |
| for (size_t __i = 0; __i < _M_facets_size; ++__i) |
| if (_M_caches[__i]) |
| _M_caches[__i]->_M_remove_reference(); |
| delete [] _M_caches; |
| |
| if (_M_names) |
| for (size_t __i = 0; __i < _S_categories_size; ++__i) |
| delete [] _M_names[__i]; |
| delete [] _M_names; |
| } |
| |
| // Clone existing _Impl object. |
| locale::_Impl:: |
| _Impl(const _Impl& __imp, size_t __refs) |
| : _M_refcount(__refs), _M_facets(0), _M_facets_size(__imp._M_facets_size), |
| _M_caches(0), _M_names(0) |
| { |
| __try |
| { |
| _M_facets = new const facet*[_M_facets_size]; |
| for (size_t __i = 0; __i < _M_facets_size; ++__i) |
| { |
| _M_facets[__i] = __imp._M_facets[__i]; |
| if (_M_facets[__i]) |
| _M_facets[__i]->_M_add_reference(); |
| } |
| _M_caches = new const facet*[_M_facets_size]; |
| for (size_t __j = 0; __j < _M_facets_size; ++__j) |
| { |
| _M_caches[__j] = __imp._M_caches[__j]; |
| if (_M_caches[__j]) |
| _M_caches[__j]->_M_add_reference(); |
| } |
| _M_names = new char*[_S_categories_size]; |
| for (size_t __k = 0; __k < _S_categories_size; ++__k) |
| _M_names[__k] = 0; |
| |
| // Name the categories. |
| for (size_t __l = 0; (__l < _S_categories_size |
| && __imp._M_names[__l]); ++__l) |
| { |
| const size_t __len = std::strlen(__imp._M_names[__l]) + 1; |
| _M_names[__l] = new char[__len]; |
| std::memcpy(_M_names[__l], __imp._M_names[__l], __len); |
| } |
| } |
| __catch(...) |
| { |
| this->~_Impl(); |
| __throw_exception_again; |
| } |
| } |
| |
| void |
| locale::_Impl:: |
| _M_replace_category(const _Impl* __imp, |
| const locale::id* const* __idpp) |
| { |
| for (; *__idpp; ++__idpp) |
| _M_replace_facet(__imp, *__idpp); |
| } |
| |
| void |
| locale::_Impl:: |
| _M_replace_facet(const _Impl* __imp, const locale::id* __idp) |
| { |
| size_t __index = __idp->_M_id(); |
| if ((__index > (__imp->_M_facets_size - 1)) |
| || !__imp->_M_facets[__index]) |
| __throw_runtime_error(__N("locale::_Impl::_M_replace_facet")); |
| _M_install_facet(__idp, __imp->_M_facets[__index]); |
| } |
| |
| void |
| locale::_Impl:: |
| _M_install_facet(const locale::id* __idp, const facet* __fp) |
| { |
| if (__fp) |
| { |
| size_t __index = __idp->_M_id(); |
| |
| // Check size of facet vector to ensure adequate room. |
| if (__index > _M_facets_size - 1) |
| { |
| const size_t __new_size = __index + 4; |
| |
| // New facet array. |
| const facet** __oldf = _M_facets; |
| const facet** __newf; |
| __newf = new const facet*[__new_size]; |
| for (size_t __i = 0; __i < _M_facets_size; ++__i) |
| __newf[__i] = _M_facets[__i]; |
| for (size_t __l = _M_facets_size; __l < __new_size; ++__l) |
| __newf[__l] = 0; |
| |
| // New cache array. |
| const facet** __oldc = _M_caches; |
| const facet** __newc; |
| __try |
| { |
| __newc = new const facet*[__new_size]; |
| } |
| __catch(...) |
| { |
| delete [] __newf; |
| __throw_exception_again; |
| } |
| for (size_t __j = 0; __j < _M_facets_size; ++__j) |
| __newc[__j] = _M_caches[__j]; |
| for (size_t __k = _M_facets_size; __k < __new_size; ++__k) |
| __newc[__k] = 0; |
| |
| _M_facets_size = __new_size; |
| _M_facets = __newf; |
| _M_caches = __newc; |
| delete [] __oldf; |
| delete [] __oldc; |
| } |
| |
| __fp->_M_add_reference(); |
| const facet*& __fpr = _M_facets[__index]; |
| if (__fpr) |
| { |
| // Replacing an existing facet. Order matters. |
| __fpr->_M_remove_reference(); |
| __fpr = __fp; |
| } |
| else |
| { |
| // Installing a newly created facet into an empty |
| // _M_facets container, say a newly-constructed, |
| // swanky-fresh _Impl. |
| _M_facets[__index] = __fp; |
| } |
| |
| // Ideally, it would be nice to only remove the caches that |
| // are now incorrect. However, some of the caches depend on |
| // multiple facets, and we only know about one facet |
| // here. It's no great loss: the first use of the new facet |
| // will create a new, correctly cached facet anyway. |
| for (size_t __i = 0; __i < _M_facets_size; ++__i) |
| { |
| const facet* __cpr = _M_caches[__i]; |
| if (__cpr) |
| { |
| __cpr->_M_remove_reference(); |
| _M_caches[__i] = 0; |
| } |
| } |
| } |
| } |
| |
| void |
| locale::_Impl:: |
| _M_install_cache(const facet* __cache, size_t __index) |
| { |
| __gnu_cxx::__scoped_lock sentry(get_locale_cache_mutex()); |
| if (_M_caches[__index] != 0) |
| { |
| // Some other thread got in first. |
| delete __cache; |
| } |
| else |
| { |
| __cache->_M_add_reference(); |
| _M_caches[__index] = __cache; |
| } |
| } |
| |
| // locale::id |
| // Definitions for static const data members of locale::id |
| _Atomic_word locale::id::_S_refcount; // init'd to 0 by linker |
| |
| size_t |
| locale::id::_M_id() const |
| { |
| if (!_M_index) |
| { |
| // XXX GLIBCXX_ABI Deprecated |
| #ifdef _GLIBCXX_LONG_DOUBLE_COMPAT |
| locale::id *f = 0; |
| # define _GLIBCXX_SYNC_ID(facet, mangled) \ |
| if (this == &::mangled) \ |
| f = &facet::id |
| _GLIBCXX_SYNC_ID (num_get<char>, _ZNSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| _GLIBCXX_SYNC_ID (num_put<char>, _ZNSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| _GLIBCXX_SYNC_ID (money_get<char>, _ZNSt9money_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| _GLIBCXX_SYNC_ID (money_put<char>, _ZNSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE); |
| # ifdef _GLIBCXX_USE_WCHAR_T |
| _GLIBCXX_SYNC_ID (num_get<wchar_t>, _ZNSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| _GLIBCXX_SYNC_ID (num_put<wchar_t>, _ZNSt7num_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| _GLIBCXX_SYNC_ID (money_get<wchar_t>, _ZNSt9money_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| _GLIBCXX_SYNC_ID (money_put<wchar_t>, _ZNSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE); |
| # endif |
| if (f) |
| _M_index = 1 + f->_M_id(); |
| else |
| #endif |
| _M_index = 1 + __gnu_cxx::__exchange_and_add_dispatch(&_S_refcount, |
| 1); |
| } |
| return _M_index - 1; |
| } |
| |
| _GLIBCXX_END_NAMESPACE |