diff options
Diffstat (limited to 'libstdc++-v3/include/bits/locale_classes.h')
| -rw-r--r-- | libstdc++-v3/include/bits/locale_classes.h | 227 |
1 files changed, 128 insertions, 99 deletions
diff --git a/libstdc++-v3/include/bits/locale_classes.h b/libstdc++-v3/include/bits/locale_classes.h index e7210f821fe..cfc11493216 100644 --- a/libstdc++-v3/include/bits/locale_classes.h +++ b/libstdc++-v3/include/bits/locale_classes.h @@ -71,7 +71,11 @@ namespace std template<typename _Facet> friend const _Facet& use_facet(const locale&); - + + template<typename _Cache> + friend const _Cache& + __use_cache(const locale& __loc); + // Category values: // NB: Order must match _S_facet_categories definition in locale.cc static const category none = 0; @@ -141,6 +145,12 @@ namespace std // Current global locale static _Impl* _S_global; + // Names of underlying locale categories. + // NB: locale::global() has to know how to modify all the + // underlying categories, not just the ones required by the C++ + // standard. + static const char** _S_categories; + // Number of standard categories. For C++, these categories are // collate, ctype, monetary, numeric, time, and messages. These // directly correspond to ISO C99 macros LC_COLLATE, LC_CTYPE, @@ -153,12 +163,6 @@ namespace std // and LC_IDENTIFICATION. static const size_t _S_categories_size = 6 + _GLIBCPP_NUM_CATEGORIES; - // Names of underlying locale categories. - // NB: locale::global() has to know how to modify all the - // underlying categories, not just the ones required by the C++ - // standard. - static const char** _S_categories; - explicit locale(_Impl*) throw(); @@ -177,7 +181,107 @@ namespace std }; - // Implementation object for locale + // 22.1.1.1.2 Class locale::facet + class locale::facet + { + private: + friend class locale; + friend class locale::_Impl; + + mutable _Atomic_word _M_references; + + protected: + // Contains data from the underlying "C" library for the classic locale. + static __c_locale _S_c_locale; + + // String literal for the name of the classic locale. + static char _S_c_name[2]; + + explicit + facet(size_t __refs = 0) throw() : _M_references(__refs ? 1 : 0) + { } + + virtual + ~facet(); + + static void + _S_create_c_locale(__c_locale& __cloc, const char* __s, + __c_locale __old = 0); + + static __c_locale + _S_clone_c_locale(__c_locale& __cloc); + + static void + _S_destroy_c_locale(__c_locale& __cloc); + + private: + inline void + _M_add_reference() const throw() + { __atomic_add(&_M_references, 1); } + + inline void + _M_remove_reference() const throw() + { + if (__exchange_and_add(&_M_references, -1) == 1) + { + try + { delete this; } + catch (...) + { } + } + } + + facet(const facet&); // Not defined. + + void + operator=(const facet&); // Not defined. + }; + + + // 22.1.1.1.3 Class locale::id + class locale::id + { + private: + friend class locale; + friend class locale::_Impl; + + template<typename _Facet> + friend const _Facet& + use_facet(const locale&); + + template<typename _Facet> + friend bool + has_facet(const locale&) throw (); + + // NB: There is no accessor for _M_index because it may be used + // before the constructor is run; the effect of calling a member + // function (even an inline) would be undefined. + mutable size_t _M_index; + + // Last id number assigned. + static _Atomic_word _S_highwater; + + void + operator=(const id&); // Not defined. + + id(const id&); // Not defined. + + public: + // NB: This class is always a static data member, and thus can be + // counted on to be zero-initialized. + id() { } + + inline size_t + _M_id() const + { + if (!_M_index) + _M_index = 1 + __exchange_and_add(&_S_highwater, 1); + return _M_index - 1; + } + }; + + + // Implementation object for locale. class locale::_Impl { public: @@ -186,18 +290,23 @@ namespace std friend class locale::facet; template<typename _Facet> + friend bool + has_facet(const locale&) throw(); + + template<typename _Facet> friend const _Facet& use_facet(const locale&); - template<typename _Facet> - friend bool - has_facet(const locale&) throw(); + template<typename _Cache> + friend const _Cache& + __use_cache(const locale& __loc); private: // Data Members. _Atomic_word _M_references; const facet** _M_facets; size_t _M_facets_size; + const facet** _M_caches; char** _M_names; static const locale::id* const _S_id_ctype[]; static const locale::id* const _S_id_numeric[]; @@ -258,7 +367,14 @@ namespace std template<typename _Facet> inline void _M_init_facet(_Facet* __facet) - { _M_install_facet(&_Facet::id, __facet); } + { _M_install_facet(&_Facet::id, __facet); } + + void + _M_install_cache(const facet* __cache, size_t __index) + { + __cache->_M_add_reference(); + _M_caches[__index] = __cache; + } }; template<typename _Facet> @@ -274,93 +390,6 @@ namespace std _M_impl->_M_names[__i] = __new; } } - - - // 22.1.1.1.2 Class locale::facet - class locale::facet - { - private: - friend class locale; - friend class locale::_Impl; - - mutable _Atomic_word _M_references; - - protected: - // Contains data from the underlying "C" library for the classic locale. - static __c_locale _S_c_locale; - - // String literal for the name of the classic locale. - static char _S_c_name[2]; - - explicit - facet(size_t __refs = 0) throw(); - - virtual - ~facet(); - - static void - _S_create_c_locale(__c_locale& __cloc, const char* __s, - __c_locale __old = 0); - - static __c_locale - _S_clone_c_locale(__c_locale& __cloc); - - static void - _S_destroy_c_locale(__c_locale& __cloc); - - private: - void - _M_add_reference() const throw(); - - void - _M_remove_reference() const throw(); - - facet(const facet&); // Not defined. - - void - operator=(const facet&); // Not defined. - }; - - - // 22.1.1.1.3 Class locale::id - class locale::id - { - private: - friend class locale; - friend class locale::_Impl; - template<typename _Facet> - friend const _Facet& - use_facet(const locale&); - template<typename _Facet> - friend bool - has_facet(const locale&) throw (); - - // NB: There is no accessor for _M_index because it may be used - // before the constructor is run; the effect of calling a member - // function (even an inline) would be undefined. - mutable size_t _M_index; - - // Last id number assigned. - static _Atomic_word _S_highwater; - - void - operator=(const id&); // Not defined. - - id(const id&); // Not defined. - - public: - // NB: This class is always a static data member, and thus can be - // counted on to be zero-initialized. - id(); - - inline size_t - _M_id() const - { - if (!_M_index) - _M_index = 1 + __exchange_and_add(&_S_highwater, 1); - return _M_index - 1; - } - }; } // namespace std #endif |