- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3
2014-07-20 15:01:37 +00:00
commit 26291bca3d
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+/* +++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 */