lround

   Rounds to the nearest integer value, rounding halfway cases away
   from zero regardless of the current rounding direction.

   This function is supported on OpenVMS Integrity servers and
   Alpha only.

   Format

     #include  <math.h>

     long lround  (double x);

     long lroundf  (float x);

     long lroundl  (long double x);
 

Additional information available:

Argument        Description     Return_Values