C/math.h/round
round: returns the value of arg rounded to the nearest integer
//Declaratoin: float roundf(float arg); double round(double arg); long double roundl(long double arg);
// Values precisely between two values, such as 3.5, are rounded up.
#include <math.h>
#include <stdio.h>
int main(void)
{
printf("%f\n", round (3.2));
return 0;
}
/*3.000000*/