const correctness.

git-svn-id: svn://localhost/ardour2/branches/3.0@7323 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/libs/pbd/pbd/ringbuffer.h b/libs/pbd/pbd/ringbuffer.h
index 1d9431ca071515becf2807d1df61c99ff95f7beb..f14fa7185184356d154f40da1a134446d0200bb0 100644 (file)
--- a/libs/pbd/pbd/ringbuffer.h
+++ b/libs/pbd/pbd/ringbuffer.h
@@ -55,7 +55,7 @@ class RingBuffer
        }
        
        guint read  (T *dest, guint cnt);
-       guint write (T *src,  guint cnt);
+       guint write (T const * src,  guint cnt);
 
        struct rw_vector {
            T *buf[2];
@@ -158,7 +158,7 @@ RingBuffer<T>::read (T *dest, guint cnt)
 }
 
 template<class T> guint
-RingBuffer<T>::write (T *src, guint cnt)
+RingBuffer<T>::write (T const *src, guint cnt)
 
 {
         guint free_cnt;