1 files changed, 58 insertions, 0 deletions
diff --git a/omegalib/basic/include/basic/ConstString.h b/omegalib/basic/include/basic/ConstString.h
new file mode 100644
index 0000000..5149e55
--- /dev/null
+++ b/omegalib/basic/include/basic/ConstString.h
@@ -0,0 +1,58 @@
+#if ! defined _Const_String_h
+#define _Const_String_h 1
+
+#include <string>
+
+namespace omega {
+  
+// should be inside Const_String, but I can't get it to
+// compile the hashTable when it is: hashTable can't be
+// global, but if it and its size are static to Const_String,
+// the compiler still doesn't seem to like the definition,
+// or the declaration either for that matter.
+
+class ConstStringRep {
+public:
+  const char *name;
+  int count;
+  ConstStringRep *nextInBucket;
+  ConstStringRep(const char *t);
+};
+
+class Const_String {
+private:
+  ConstStringRep *rep;
+  void buildRep(const char *t);
+
+public:
+  Const_String();
+  Const_String(const char* t);
+  Const_String(const std::string &s);
+  Const_String(const Const_String & t) {rep = t.rep;}
+
+  operator int() const;
+  int null() const;
+
+  operator const char*() const;
+  operator std::string() const;
+  int operator++(int);
+  int operator++();
+  int operator--(int);
+  int operator--();
+  friend int operator==(const Const_String &x, const Const_String &y);
+  friend int operator!=(const Const_String &x, const Const_String &y);
+  friend int operator<(const Const_String &x, const Const_String &y);
+  friend  int     operator >(const Const_String &x, const Const_String &y);
+
+};
+
+#if defined SCREWED_UP_CASTING_RULES
+static int operator==(const Const_String &x, const char *y)
+{ return x == (Const_String) y; }
+static int operator!=(const Const_String &x, const char *y)
+{ return x != (Const_String) y; }
+#endif
+
+} // namespace
+
+#endif