(4) You have been assigned the task of writing a C function to compute a floating point representation of 2. You decide that the best way is to do this is to directly construct the IEEE single precision representation of the result. When x is too small, your routine will return 0.0. When x is too large, it will return too. Fill in the blank portions of the code that follows to compute the correct result. Assume the function u2f returns a floating point value having an identical bit representation as its unsigned argument. Show work. float fpwr2(int x) unsigned exp, frac, u; if (x