lilypond-0.0.11

diff --git a/src/spanner.cc b/src/spanner.cc
index 16c3ff19cb60211c89c75b13c24f52837c211781..d38a604302f87e3f4b04a781a7aebcac750194b6 100644 (file)
--- a/src/spanner.cc
+++ b/src/spanner.cc
@@ -33,7 +33,11 @@ Spanner::preprocess()
 Interval
 Spanner::width()const
 {
-    return Interval(0,right->hpos - left->hpos);
+    Real r =right->hpos,
+       l= left->hpos;
+    assert(r>=l);
+       
+    return Interval(0, r-l);
 }
 
 Paperdef*