Make sure undo tokens and RB-tree entries are destroyed properly

 * when a pointer to an abstract base class is "deleted", it must have a virtual destructor so the destructor of derived classes is executed
 * fixes for instance, deletion of save point files when the command line is terminated (undo stack is discarded)
 * simplified some undotoken code

1 files changed, 0 insertions, 3 deletions

diff --git a/goto.cpp b/goto.cpp
index 63ccc05..c64a896 100644
--- a/goto.cpp
+++ b/goto.cpp
@@ -36,9 +36,6 @@ class GotoTable : public RBTree {
 		run(void)
 		{
 			table->set(name, pc);
-			g_free(name);
-			name = NULL;
-
 #ifdef DEBUG
 			table->dump();
 #endif