granicus.if.org Git - postgresql/blob - src/port/rint.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * rint.c
   4  *        rint() implementation
   5  *
   6  * IDENTIFICATION
   7  *        src/port/rint.c
   8  *
   9  *-------------------------------------------------------------------------
  10  */
  11 #include "c.h"
  12
  13 #include <math.h>
  14
  15 double
  16 rint(double x)
  17 {
  18         return (x >= 0.0) ? floor(x + 0.5) : ceil(x - 0.5);
  19 }