1 files changed, 80 insertions, 0 deletions
diff --git a/common/tools.hh b/common/tools.hh
new file mode 100644
index 0000000..af8e5e9
--- /dev/null
+++ b/common/tools.hh
@@ -0,0 +1,80 @@
+#ifndef __COMMON_TOOLS_HH__
+#define __COMMON_TOOLS_HH__
+
+#include "lout/object.hh"
+#include "lout/container.hh"
+
+namespace rtfl {
+
+namespace tools {
+
+const char *numSuffix (int n);
+void numToRoman (int num, char *buf, int buflen);
+void syserr (const char *fmt, ...);
+
+class EquivalenceRelation: public lout::object::Object {
+private:
+   class RefTarget: public lout::object::Object {
+   private:
+      bool ownerOfObject;
+      int refCount;
+      lout::object::Object *object;
+      lout::container::untyped::HashSet *allKeys;
+
+   public:
+      RefTarget (lout::object::Object *object, bool ownerOfObject);
+      ~RefTarget ();
+
+      inline lout::object::Object *getObject () { return object; }
+      inline void ref () { refCount++; }
+      inline void unref () { if (--refCount == 0) delete this; }
+
+      inline lout::container::untyped::HashSet *getAllKeys ()
+      { return allKeys; }
+      inline void putKey (Object *key) { allKeys->put (key); }
+      inline void removeKey (Object *key) { allKeys->remove (key); }
+   };
+
+
+   class RefSource: public lout::object::Object {
+      RefTarget *target;
+      lout::object::Object *key;
+
+      void refTarget ();
+      void unrefTarget ();
+      
+   public:
+      RefSource (lout::object::Object *key, RefTarget *target);
+      ~RefSource ();
+
+      inline RefTarget *getTarget () { return target; }
+      void setTarget (RefTarget *target);
+   };
+   
+   bool ownerOfKeys, ownerOfValues;
+   lout::container::untyped::HashTable *sources;
+
+   lout::container::untyped::HashSet *initSet (lout::object::Object *o);
+
+ public:
+   EquivalenceRelation (bool ownerOfKeys, bool ownerOfValues);
+   ~EquivalenceRelation ();
+  
+   void put (lout::object::Object *key, lout::object::Object *value);
+   lout::object::Object *get (lout::object::Object *key) const;
+   bool contains (lout::object::Object *key) const;
+   lout::container::untyped::Iterator iterator ();
+   lout::container::untyped::Iterator relatedIterator (Object *key);
+
+   void relate (lout::object::Object *key1, lout::object::Object *key2);
+   void putRelated (lout::object::Object *oldKey, lout::object::Object *newKey);
+   
+   void removeSimple (lout::object::Object *key);
+   void remove (lout::object::Object *key);
+};
+
+} // namespace tools
+
+} // namespace rtfl
+
+#endif // __COMMON_TOOLS_HH__