jens
191af92d47
Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@790 cc03376c-175c-47c8-b038-4cd826a8556b
56 lines
869 B
C
56 lines
869 B
C
/* +++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 */
|