Alex Romosan:

[flightgear.git] / src / ATC / AIPlane.cxx

diff --git a/src/ATC/AIPlane.cxx b/src/ATC/AIPlane.cxx
index 6191558b44a25ee6384ea3ec77005ec8e9f668dc..8d501910d971d905a30e29922ce9ae69ff40d463 100644 (file)
--- a/src/ATC/AIPlane.cxx
+++ b/src/ATC/AIPlane.cxx
@@ -181,7 +181,7 @@ void FGAIPlane::ProcessCallback(int code) {
 // Outputs the transmission either on screen or as audio depending on user preference
 // The refname is a string to identify this sample to the sound manager
 // The repeating flag indicates whether the message should be repeated continuously or played once.
-void FGAIPlane::Render(string refname, bool repeating) {
+void FGAIPlane::Render(const string& refname, bool repeating) {
 #ifdef ENABLE_AUDIO_SUPPORT
        voice = (voiceOK && fgGetBool("/sim/sound/voice"));
        if(voice) {
@@ -216,7 +216,7 @@ void FGAIPlane::Render(string refname, bool repeating) {
 
 
 // Cease rendering a transmission.
-void FGAIPlane::NoRender(string refname) {
+void FGAIPlane::NoRender(const string& refname) {
        if(playing) {
                if(voice) {
 #ifdef ENABLE_AUDIO_SUPPORT