diff options
| -rw-r--r-- | src/include/cctk_Math.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/include/cctk_Math.h b/src/include/cctk_Math.h index bd7c3f6f..e51c991f 100644 --- a/src/include/cctk_Math.h +++ b/src/include/cctk_Math.h @@ -13,8 +13,16 @@ #define _CCTK_MATH_H_ #ifdef __cplusplus -# include <math.h> +/* Note: Some C++ implementations differ in their behaviour (how isnan + etc. can be accessed) depending on the order (!) in which <cmath> + and <math.h> is included, if both are included. + + We therefore require: A file including this file may include + <cmath> at will, and is allowed to include <math.h> if <cmath> is + included before. We do this because <cmath> seems "more standard" + than <math.h> for C++ these days. */ # include <cmath> +# include <math.h> # include <cctk_Config.h> # include <cctk_Types.h> #endif |