| /* +++Date last modified: 05-Jul-1997 */ |
| |
| /* |
| ** rounding macros by Dave Knapp, Thad Smith, Jon Strayer, & Bob Stout |
| */ |
| |
| #ifndef ROUND__H |
| #define ROUND__H |
| |
| #include <math.h> |
| |
| #if defined(__cplusplus) && __cplusplus |
| |
| /* |
| ** Safe C++ inline versions |
| */ |
| |
| /* round to integer */ |
| |
| inline int iround(double x) |
| { |
| return (int)floor(x + 0.5); |
| } |
| |
| /* round number n to d decimal points */ |
| |
| inline double fround(double n, unsigned d) |
| { |
| return floor(n * pow(10., d) + .5) / pow(10., d); |
| } |
| |
| #else |
| |
| /* |
| ** NOTE: These C macro versions are unsafe since arguments are referenced |
| ** more than once. |
| ** |
| ** Avoid using these with expression arguments to be safe. |
| */ |
| |
| /* |
| ** round to integer |
| */ |
| |
| #define iround(x) floor((x) + 0.5) |
| |
| /* |
| ** round number n to d decimal points |
| */ |
| |
| #define fround(n,d) (floor((n)*pow(10.,(d))+.5)/pow(10.,(d))) |
| |
| #endif |
| |
| #endif /* ROUND__H */ |
