Fix some compiling warnings and errors in OS X

[ardour.git] / libs / ardour / ardour / export_channel.h

diff --git a/libs/ardour/ardour/export_channel.h b/libs/ardour/ardour/export_channel.h
index d9e39c88505717053b4c944c69758101a88217a1..213bd2d9fa28136f2d9d3a76c78c8ac96a50ac6a 100644 (file)
--- a/libs/ardour/ardour/export_channel.h
+++ b/libs/ardour/ardour/export_channel.h
@@ -38,6 +38,9 @@ class Session;
 class ExportChannel
 {
   public:
+
+       virtual ~ExportChannel () {}
+
        virtual void read (Sample * data, nframes_t frames) const = 0;
        virtual bool empty () const = 0;
        
@@ -69,13 +72,13 @@ class PortExportChannel : public ExportChannel
 
        PortExportChannel () {}
        
-       virtual void read (Sample * data, nframes_t frames) const;
-       virtual bool empty () const { return ports.empty(); }
+       void read (Sample * data, nframes_t frames) const;
+       bool empty () const { return ports.empty(); }
        
-       virtual void get_state (XMLNode * node) const;
-       virtual void set_state (XMLNode * node, Session & session);
+       void get_state (XMLNode * node) const;
+       void set_state (XMLNode * node, Session & session);
        
-       virtual bool operator< (ExportChannel const & other) const;
+       bool operator< (ExportChannel const & other) const;
 
        void add_port (AudioPort * port) { ports.insert (port); }
        PortSet const & get_ports () { return ports; }
@@ -126,12 +129,12 @@ class RegionExportChannel : public ExportChannel
        friend class RegionExportChannelFactory;
 
   public:
-       virtual void read (Sample * data, nframes_t frames_to_read) const { factory.read (channel, data, frames_to_read); }
-       virtual void get_state (XMLNode * node) const {};
-       virtual void set_state (XMLNode * node, Session & session) {};
-       virtual bool empty () const { return false; }
+       void read (Sample * data, nframes_t frames_to_read) const { factory.read (channel, data, frames_to_read); }
+       void get_state (XMLNode * node) const {};
+       void set_state (XMLNode * node, Session & session) {};
+       bool empty () const { return false; }
        // Region export should never have duplicate channels, so there need not be any semantics here
-       virtual bool operator< (ExportChannel const & other) const { return this < &other; }
+       bool operator< (ExportChannel const & other) const { return this < &other; }
 
   private: