Issue 4550 (1/2) Avoid "using namespace std;" in included files

[lilypond.git] / lily / axis-group-interface.cc

diff --git a/lily/axis-group-interface.cc b/lily/axis-group-interface.cc
index 717ae1945f127af9a1a143ab4e5b583f77e72535..7c11cb7e979458f67317b37ed9a4164aa4f81549 100644 (file)
--- a/lily/axis-group-interface.cc
+++ b/lily/axis-group-interface.cc
@@ -802,7 +802,7 @@ add_grobs_of_one_priority (Grob *me,
           last_end[dir] = x_extent[RIGHT];
 
           Skyline_pair *v_orig = unsmob<Skyline_pair> (elt->get_property ("vertical-skylines"));
-          if (v_orig->is_empty ())
+          if (!v_orig || v_orig->is_empty ())
             continue;
 
           // Find the riders associated with this grob, and merge their