Fixed example [A.Sheplyakov].

diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi
index 3cd6c6179478ce9d05b81261eb9317e53b639744..92fb7d1463f31d004015366fac9a100235b83b9d 100644 (file)
--- a/doc/tutorial/ginac.texi
+++ b/doc/tutorial/ginac.texi
@@ -7857,7 +7857,7 @@ ex e = mystring("Hello, world!");
 cout << is_a<mystring>(e) << endl;
  // -> 1 (true)
 
-cout << e.bp->class_name() << endl;
+cout << ex_to<basic>(e).class_name() << endl;
  // -> mystring
 @end example