diff options
Diffstat (limited to 'core/units.h')
| -rw-r--r-- | core/units.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/core/units.h b/core/units.h index 8839dde1d..4232e24a3 100644 --- a/core/units.h +++ b/core/units.h @@ -13,6 +13,8 @@ extern "C" { #include <stdbool.h> #endif +#define FRACTION(n, x) ((unsigned)(n) / (x)), ((unsigned)(n) % (x)) + #define O2_IN_AIR 209 // permille #define N2_IN_AIR 781 #define O2_DENSITY 1331 // mg/Liter |