X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fsg_inlines.h;h=f10090db99068a1684e74d409df110ffcec31d58;hb=38ddfab1e0d7c0bd0ef6d2de7c2487510fc9e700;hp=5d47d594c8994ae629213d39822b7fddd58f6115;hpb=4e7fe460a5c5c1b64dd1d540bc197dbb89614b7f;p=simgear.git

diff --git a/simgear/sg_inlines.h b/simgear/sg_inlines.h
index 5d47d594..f10090db 100644
--- a/simgear/sg_inlines.h
+++ b/simgear/sg_inlines.h
@@ -98,6 +98,15 @@ inline void SG_NORMALIZE_RANGE( T &val, const T min, const T max ) {
     T step = max - min;
     while( val >= max )  val -= step;
     while( val < min ) val += step;
-};
+}
+
+// avoid an 'unused parameter' compiler warning.
+#define SG_UNUSED(x) (void)x
 
+// easy way to disable the copy constructor and assignment operator
+// on an object
+#define SG_DISABLE_COPY(Class) \
+    Class(const Class &); \
+    Class &operator=(const Class &);
+   
 #endif // _SG_INLINES_H