Minor change to 'pbd/controllable.h'

[ardour.git] / libs / pbd / pbd / sequence_property.h

diff --git a/libs/pbd/pbd/sequence_property.h b/libs/pbd/pbd/sequence_property.h
index 63263819ca384ba73b6881813c188a2efc80e000..e105e82e47c01ba7c61529ff024f892a82661e0d 100644 (file)
--- a/libs/pbd/pbd/sequence_property.h
+++ b/libs/pbd/pbd/sequence_property.h
@@ -27,6 +27,7 @@
 
 #include <boost/function.hpp>
 
+#include "pbd/libpbd_visibility.h"
 #include "pbd/convert.h"
 #include "pbd/id.h"
 #include "pbd/property_basics.h"
@@ -43,7 +44,7 @@ namespace PBD {
  *  any change.
  */
 template<typename Container>
-class SequenceProperty : public PropertyBase
+class /*LIBPBD_API*/ SequenceProperty : public PropertyBase
 {
   public:
         typedef std::set<typename Container::value_type> ChangeContainer;
@@ -310,10 +311,10 @@ class SequenceProperty : public PropertyBase
        }
 
        Container& operator= (const Container& other) {
-               for (typename Container::iterator i = _val.begin(); i != _val.end(); ++i) {
+               for (typename Container::const_iterator i = _val.begin(); i != _val.end(); ++i) {
                        _changes.remove (*i);
                }
-               for (typename Container::iterator i = other.begin(); i != other.end(); ++i) {
+               for (typename Container::const_iterator i = other.begin(); i != other.end(); ++i) {
                        _changes.add (*i);
                }
                return _val = other;