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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libstdc++-v3/] [src/] [c++98/] [locale.cc] - Rev 753
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, // 2006, 2007, 2008, 2009, 2010 // 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 namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION // 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 __GTHREADS 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() throw() { 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 throw() { 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_VERSION } // namespace
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