X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogramsyntax.h;h=e7b5111ea2bfd5c411c853d99bffb32ff2f74aee;hb=caad9bd997e95b3ccdf496313588b8480ebfddfa;hp=590429519118614f6a59a83796da97f50693ff9c;hpb=a3c795f7b07afa3e8838ad143f8df7a8d10f1ad4;p=libs%2Fgl.git

diff --git a/source/programsyntax.h b/source/programsyntax.h
index 59042951..e7b5111e 100644
--- a/source/programsyntax.h
+++ b/source/programsyntax.h
@@ -20,6 +20,9 @@ struct NodeVisitor;
 
 struct Node
 {
+protected:
+	Node() { }
+	Node(const Node &) { }
 private:
 	Node &operator=(const Node &);
 public:
@@ -36,6 +39,7 @@ public:
 	NodePtr() { }
 	NodePtr(T *p): RefPtr<T>(p) { }
 	NodePtr(const NodePtr &p): RefPtr<T>(p ? p->clone() : 0) { }
+	NodePtr &operator=(const NodePtr &p) { RefPtr<T>::operator=(p); return *this; }
 
 	template<typename U>
 	NodePtr(const RefPtr<U> &p): RefPtr<T>(p) { }