From: Carl Sorensen <c_sorensen@byu.edu>
Date: Sun, 14 Nov 2010 00:41:43 +0000 (-0700)
Subject: Fix 1382
X-Git-Tag: release/2.13.40-1~16^2~8
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=11cb980eb068c4d4bcaf20c27f8a0b8eda731c29;p=lilypond.git

Fix 1382
---

diff --git a/input/regression/zero_staff_space.ly b/input/regression/zero_staff_space.ly
new file mode 100644
index 0000000000..cc30e65786
--- /dev/null
+++ b/input/regression/zero_staff_space.ly
@@ -0,0 +1,17 @@
+
+\version "2.13.40"
+\header{
+
+  texidoc="
+Setting staff-space to 0 does not cause a segmentation fault.
+"
+
+}
+
+\new Staff \with {
+  \override StaffSymbol #'staff-space = #0
+  } {
+  \relative c' {
+    c1
+  }
+}
diff --git a/lily/staff-symbol-referencer.cc b/lily/staff-symbol-referencer.cc
index bec8c8001f..4dbd6d2d6b 100644
--- a/lily/staff-symbol-referencer.cc
+++ b/lily/staff-symbol-referencer.cc
@@ -81,9 +81,9 @@ Staff_symbol_referencer::get_position (Grob *me)
   if (st && c)
     {
       Real y = me->relative_coordinate (c, Y_AXIS)
-	- st->relative_coordinate (c, Y_AXIS);
-
-      p += 2.0 * y / Staff_symbol::staff_space (st);
+	       - st->relative_coordinate (c, Y_AXIS);
+      Real space = Staff_symbol::staff_space (st);
+      p = (space == 0) ? 0 : 2.0 * y / space;
       return p;
     }
   else if (!st)
@@ -153,7 +153,6 @@ Staff_symbol_referencer::set_position (Grob *me, Real p)
       oldpos = get_position (me);
     }
 
-  
   Real ss = Staff_symbol_referencer::staff_space (me);
   me->translate_axis ((p  - oldpos) * ss * 0.5, Y_AXIS);
 }