From: Mike Solomon <mike@apollinemike.com>
Date: Mon, 4 Apr 2011 14:41:08 +0000 (-0400)
Subject: Adds programming error for empty config vector in beam-quanting.cc.
X-Git-Tag: release/2.13.58-1~11^2
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=575a18eed250669876ddf225cf8050e691eedd75;p=lilypond.git

Adds programming error for empty config vector in beam-quanting.cc.

This avoids a segmentation fault when the queue.top () is called.
---

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 =