X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbeam-quanting.cc;h=e1116308ed24f18187db2b7c7e2f522e996cb7f1;hb=575a18eed250669876ddf225cf8050e691eedd75;hp=e868e51d7f124af9c4ee4a690a19890314569429;hpb=85fe0f15000f793435221fab2688ba3fa65a028f;p=lilypond.git

diff --git a/lily/beam-quanting.cc b/lily/beam-quanting.cc
index e868e51d7f..e1116308ed 100644
--- a/lily/beam-quanting.cc
+++ b/lily/beam-quanting.cc
@@ -447,6 +447,12 @@ Beam_scoring_problem::solve () const {
   vector<Beam_configuration*> configs;
   generate_quants (&configs);
 
+  if (configs.empty ())
+    {
+      programming_error ("No viable beam quanting found.  Using unquanted y value.");
+      return unquanted_y;
+    }
+
   Beam_configuration *best = NULL;  
 
   bool debug =