Merge branch 'fredb/effect-stuff'

[simgear.git] / simgear / constants.h

diff --git a/simgear/constants.h b/simgear/constants.h
index b6fd7a909affd3c208f4ccba1fb6bdf60ba7f2fa..8438e1321f08ff6d8af22886024dd21717f146f8 100644 (file)
--- a/simgear/constants.h
+++ b/simgear/constants.h
@@ -31,14 +31,8 @@
 
 #include <simgear/compiler.h>
 
-#ifdef SG_HAVE_STD_INCLUDES
-#  include <cmath>
-#else
-#  ifdef SG_MATH_EXCEPTION_CLASH
-#    define exception C_exception
-#  endif
-#  include <math.h>
-#endif
+#include <cmath>
+
 
 #include <plib/sg.h>
 
@@ -124,10 +118,10 @@
 /** Nautical Miles to Radians */
 #define SG_RAD_TO_NM        3437.7467707849392526
 
-/** Miles per second to Knots */
+/** meters per second to Knots */
 #define SG_MPS_TO_KT        1.9438444924406046432
 
-/** Knots to Miles per second */
+/** Knots to meters per second */
 #define SG_KT_TO_MPS        0.5144444444444444444
 
 /** Feet per second to Knots */
@@ -136,16 +130,16 @@
 /** Knots to Feet per second */
 #define SG_KT_TO_FPS        1.6878098571011956874
 
-/** Miles per second to Miles per hour */
+/** meters per second to Miles per hour */
 #define SG_MPS_TO_MPH       2.2369362920544020312
 
-/** Miles per hour to Miles per second */
+/** meetrs per hour to Miles per second */
 #define SG_MPH_TO_MPS       0.44704
 
 /** Meters per second to Kilometers per hour */
 #define SG_MPS_TO_KMH       3.6
 
-/** Kilometers per hour to Miles per second */
+/** Kilometers per hour to meters per second */
 #define SG_KMH_TO_MPS       0.2777777777777777778
 
 /** Pascal to Inch Mercury */