1 files changed, 109 insertions, 0 deletions
diff --git a/src/boost/libs/locale/src/shared/ios_prop.hpp b/src/boost/libs/locale/src/shared/ios_prop.hpp
new file mode 100644
index 000000000..0a820e126
--- /dev/null
+++ b/src/boost/libs/locale/src/shared/ios_prop.hpp
@@ -0,0 +1,109 @@
+//
+//  Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+#ifndef BOOST_SRC_LOCALE_IOS_PROP_HPP
+#define BOOST_SRC_LOCALE_IOS_PROP_HPP
+#include <ios>
+
+namespace boost {
+    namespace locale {
+        namespace impl {
+       
+            template<typename Property> 
+            class ios_prop {
+            public:
+                static void set(Property const &prop,std::ios_base &ios)
+                {
+                    int id=get_id();
+                    if(ios.pword(id)==0) {
+                        ios.pword(id) = new Property(prop);
+                        ios.register_callback(callback,id);
+                    }
+                    else if(ios.pword(id)==invalid) {
+                        ios.pword(id) = new Property(prop);
+                    }
+                    else {
+                        *static_cast<Property *>(ios.pword(id))=prop;
+                    }
+                }
+                
+                static Property &get(std::ios_base &ios)
+                {
+                    int id=get_id();
+                    if(!has(ios))
+                        set(Property(),ios);
+                    return *static_cast<Property *>(ios.pword(id));
+                }
+                
+                static bool has(std::ios_base &ios)
+                {
+                    int id=get_id();
+                    if(ios.pword(id)==0 || ios.pword(id)==invalid)
+                        return false;
+                    return true;
+                }
+
+                static void unset(std::ios_base &ios)
+                {
+                    if(has(ios)) {
+                        int id=get_id();
+                        Property *p=static_cast<Property *>(ios.pword(id));
+                        delete p;
+                        ios.pword(id)=invalid;
+                    }
+                }
+                static void global_init()
+                {
+                    get_id();
+                }
+            private:
+                static void * const invalid;
+                
+                static void callback(std::ios_base::event ev,std::ios_base &ios,int id)
+                {
+                    switch(ev) {
+                    case std::ios_base::erase_event:
+                        if(!has(ios))
+                            break;
+                        delete reinterpret_cast<Property *>(ios.pword(id));
+                        break;
+                    case std::ios_base::copyfmt_event:
+                        if(ios.pword(id)==invalid || ios.pword(id)==0)
+                            break;
+                        ios.pword(id)=new Property(*reinterpret_cast<Property *>(ios.pword(id)));
+                        break;
+                    case std::ios_base::imbue_event:
+                        if(ios.pword(id)==invalid || ios.pword(id)==0)
+                            break;
+                        reinterpret_cast<Property *>(ios.pword(id))->on_imbue(); 
+                        break;
+                        
+                    default: ;
+                    }
+                }
+                static int get_id()
+                {
+                    static int id = std::ios_base::xalloc();
+                    return id;
+                }
+            };
+
+            template<typename Property>
+            void * const ios_prop<Property>::invalid = (void *)(-1);
+
+
+
+        }
+    }
+}
+
+
+
+#endif
+
+// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4 
+