Fix assignment operator for Operator

libwccl/ops/operator.h

@@ -307,7 +307,7 @@ template <class T> inline
 Operator<T>& Operator<T>::operator=(const Operator& other) {
 	BOOST_ASSERT(other.function_body_);
 	BOOST_ASSERT(other.variables_);
-	function_body_.reset(other.function_body_);
+	function_body_ = other.function_body_;
 	variables_.reset(other.variables_->clone());
 	return *this;
 }

libwccl/ops/parsedexpression.h

@@ -156,7 +156,7 @@ public:
 protected:
 	explicit ParsedExpression(const Variables& variables);
 
-	const boost::shared_ptr<Variables> variables_;
+	boost::shared_ptr<Variables> variables_;
 
 	virtual ParsedExpression* clone_internal() const = 0;
 };