+ /** Shrink an Extensible class.
+ *
+ * @param key The key parameter is an arbitary string which identifies the extension data
+ *
+ * You must provide a key name. The given key name will be removed from the classes data. If
+ * you provide a nonexistent key (case is important) then the function will return false.
+ * @return Returns true on success.
+ */
+ bool Shrink(const std::string &key);
+
+ /** Get an extension item.
+ *
+ * @param key The key parameter is an arbitary string which identifies the extension data
+ * @param p If you provide a non-existent key, this value will be NULL. Otherwise a pointer to the item you requested will be placed in this templated parameter.
+ * @return Returns true if the item was found and false if it was nor, regardless of wether 'p' is NULL. This allows you to store NULL values in Extensible.
+ */
+ template<typename T> bool GetExt(const std::string &key, T* &p)
+ {
+ ExtensibleStore::iterator iter = this->Extension_Items.find(key);
+ if(iter != this->Extension_Items.end())
+ {
+ p = (T*)iter->second;
+ return true;
+ }
+ else
+ {
+ p = NULL;
+ return false;
+ }
+ }
+
+ /** Get an extension item.
+ *
+ * @param key The key parameter is an arbitary string which identifies the extension data
+ * @return Returns true if the item was found and false if it was not.
+ *
+ * This single-parameter version only checks if the key exists, it does nothing with
+ * the 'data' field and is probably only useful in conjunction with the single-parameter
+ * version of Extend().
+ */
+ bool GetExt(const std::string &key)
+ {
+ return (this->Extension_Items.find(key) != this->Extension_Items.end());
+ }
+
+ /** Get a list of all extension items names.
+ * @param list A deque of strings to receive the list
+ * @return This function writes a list of all extension items stored in this object by name into the given deque and returns void.
+ */
+ void GetExtList(std::deque<std::string> &list);
+};
+
+/** BoolSet is a utility class designed to hold eight bools in a bitmask.
+ * Use BoolSet::Set and BoolSet::Get to set and get bools in the bitmask,
+ * and Unset and Invert for special operations upon them.
+ */
+class CoreExport BoolSet : public classbase
+{
+ char bits;
+
+ public:
+
+ /** The default constructor initializes the BoolSet to all values unset.
+ */
+ BoolSet();
+
+ /** This constructor copies the default bitmask from a char
+ */
+ BoolSet(char bitmask);
+
+ /** The Set method sets one bool in the set.
+ *
+ * @param number The number of the item to set. This must be between 0 and 7.
+ */
+ void Set(int number);
+
+ /** The Get method returns the value of one bool in the set
+ *
+ * @param number The number of the item to retrieve. This must be between 0 and 7.
+ *
+ * @return True if the item is set, false if it is unset.
+ */
+ bool Get(int number);
+
+ /** The Unset method unsets one value in the set
+ *
+ * @param number The number of the item to set. This must be between 0 and 7.
+ */
+ void Unset(int number);
+
+ /** The Unset method inverts (flips) one value in the set
+ *
+ * @param number The number of the item to invert. This must be between 0 and 7.
+ */
+ void Invert(int number);
+
+ /** Compare two BoolSets
+ */
+ bool operator==(BoolSet other);
+
+ /** OR two BoolSets together
+ */
+ BoolSet operator|(BoolSet other);
+
+ /** AND two BoolSets together
+ */
+ BoolSet operator&(BoolSet other);
+
+ /** Assign one BoolSet to another
+ */
+ bool operator=(BoolSet other);
+};
+
+
+#endif