Build: Version dependency for python preamble (issue 1726).

[lilypond.git] / lily / dimension-cache.cc

diff --git a/lily/dimension-cache.cc b/lily/dimension-cache.cc
index fa5c3d0dbc56441116f1bb9b1cba1866914982b6..2d2fce49f396d2c482c329916a9a7b4ba0b9ce30 100644 (file)
--- a/lily/dimension-cache.cc
+++ b/lily/dimension-cache.cc
@@ -1,13 +1,24 @@
 /*
-  dimension-cache.cc -- implement Dimension_cache
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1998--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1998--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
-*/
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
 
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
+*/
 
 #include "dimension-cache.hh"
+
 #include "warn.hh"
 #include "grob.hh"
 
@@ -33,7 +44,15 @@ Dimension_cache::init ()
 }
 
 Dimension_cache::~Dimension_cache ()
+{
+  clear ();
+}
+
+void
+Dimension_cache::clear ()
 {
   delete extent_;
   delete offset_;
+  extent_ = 0;
+  offset_ = 0;
 }