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-rw-r--r--src/emu/disound.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/emu/disound.cpp b/src/emu/disound.cpp
index 1ddcbfb179c..9d0b93f70bc 100644
--- a/src/emu/disound.cpp
+++ b/src/emu/disound.cpp
@@ -121,7 +121,7 @@ int device_sound_interface::outputs() const
// on that stream
//-------------------------------------------------
-sound_stream *device_sound_interface::input_to_stream_input(int inputnum, int &stream_inputnum)
+sound_stream *device_sound_interface::input_to_stream_input(int inputnum, int &stream_inputnum) const
{
assert(inputnum >= 0);
@@ -148,7 +148,7 @@ sound_stream *device_sound_interface::input_to_stream_input(int inputnum, int &s
// on that stream
//-------------------------------------------------
-sound_stream *device_sound_interface::output_to_stream_output(int outputnum, int &stream_outputnum)
+sound_stream *device_sound_interface::output_to_stream_output(int outputnum, int &stream_outputnum) const
{
assert(outputnum >= 0);