/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1997--2014 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
#include "warn.hh"
void
-Change_iterator::error (string reason)
+Change_iterator::error (const string &reason)
{
string to_type = ly_symbol2string (get_music ()->get_property ("change-to-type"));
string to_id = ly_scm2string (get_music ()->get_property ("change-to-id"));