..

pub/src/olf.h

@@ -51,7 +51,7 @@ class COlo {
 class COld : public COlo {
  public:
     COld() {}
-    COld( class COlc const* fc );
+    explicit COld( class COlc const* fc );
 
     // Trivially duplicated functions:
     PSpec VS( uint j ) const;