Add hack to emulate overloaded evaluate() functions

1 files changed, 12 insertions, 0 deletions

diff --git a/value.h b/value.h
index ba1eae1..6a18053 100644
--- a/value.h
+++ b/value.h
@@ -8,12 +8,24 @@
 
 class evaluator;
 
+enum value_type {
+	VALUE_TYPE_GENERIC,
+	VALUE_TYPE_TREE,
+	VALUE_TYPE_CONST,
+	VALUE_TYPE_FLOAT
+};
+
 class value {
 public:
+	value(enum value_type type);
+
 	virtual value * simplify() = 0;
 	virtual value * clone() = 0;
 	virtual std::string to_string() = 0;
+	enum value_type get_type();
 
+private:
+	enum value_type m_type;
 };
 
 class tree_value : public value {