1 files changed, 20 insertions, 4 deletions

diff --git a/runtime.h b/runtime.h
index 1a49300..1b20329 100644
--- a/runtime.h
+++ b/runtime.h
@@ -6,21 +6,37 @@
 
 using namespace std;
 
+enum Stackitemtype{
+	SIT_INT,
+	SIT_STR,
+	SIT_ARR
+};
+
 struct Stackitem{
-	bool isstr;
+	Stackitemtype type=SIT_INT;
 	string strval;
-	int intval;
+	int intval=0;
+	vector<Stackitem> arrval;
 
 	Stackitem(void);
-	Stackitem(int _i);
-	Stackitem(const string &_s);
+
+	Stackitem(int _i); //int init
+	Stackitem(const string&); //string init
+	Stackitem(const vector<Stackitem>&); //array init
+
 	Stackitem(const Stackitem&);
 	Stackitem(Stackitem &&other);
+
 	Stackitem& operator=(const Stackitem&);
 	Stackitem& operator=(Stackitem &&other);
+
 	explicit operator bool(void) const;
+
 	bool operator==(const Stackitem &other) const;
+	bool operator!=(const Stackitem &other) const;
 };
 
+string to_string(const Stackitem&);
+
 vector<string> tokenise(istream &stream);
 void run(vector<string> T);