From caad9bd997e95b3ccdf496313588b8480ebfddfa Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 12 Sep 2019 22:34:15 +0300
Subject: [PATCH] Appease the compiler with some extra copy-ctor's and
 operator='s

In C++11 if you manually define either a copy constructor or an
assignment operator, you must define the other as well.
---
 source/programsyntax.h | 4 ++++
 1 file changed, 4 insertions(+)

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) { }
-- 
2.45.2