C/math.h/round

    
//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*/