تابع ‎lrint()‎‎ در ‎C++‎

/* lrint example */
#include <stdio.h>/* printf */
#include <fenv.h>/* fegetround, FE_* */
#include <math.h>/* lrint */

int main ()
{
printf ("rounding using ");
switch (fegetround()) {
case FE_DOWNWARD: printf ("downward"); break;
case FE_TONEAREST: printf ("to-nearest"); break;
case FE_TOWARDZERO: printf ("toward-zero"); break;
case FE_UPWARD: printf ("upward"); break;
default: printf ("unknown");
}
printf (" rounding:n");
printf ( "lrint (2.3) = %ldn", lrint(2.3) );
printf ( "lrint (3.8) = %ldn", lrint(3.8) );
printf ( "lrint (-2.3) = %ldn", lrint(-2.3) );
printf ( "lrint (-3.8) = %ldn", lrint(-3.8) );
return 0;
}