Floating Point Issues

We want to round off x, a float, to an int value, The correct way to do is

A y = (int)((int)x + 0.5)

B y = (int)(x + 0.5)

C y = int(x + 0.5)

D y = (int)x + 0.5

ANS:A - y = (int)(x + 0.5)

Rounding off a value means replacing it by a nearest value that is approximately equal or smaller or greater to the given number. y = (int)(x + 0.5); here x is any float value. To roundoff, we have to typecast the value of x by using (int) Example:

#include <stdio.h>

int main ()
  float x = 3.6;
  int y = (int)(x + 0.5);
  printf ("Result = %d\n", y );
  return 0;
Result = 4.

img not found

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.