C Tutorial/math.h/rint
rint
Item Value Header file math.h Declaration float rintf(float arg);double rint(double arg);long double rintl(long double arg); Return returns the value of arg rounded to the nearest integer.
#include <math.h>
#include <stdio.h>
int main(void)
{
printf("%f\n", rint (11));
return 0;
}