Following the bit-level floating-point coding rules, implement the function with the fol...

Following the bit-level floating-point coding rules, implement the function with the following prototype:

For floating-point number f , this function computes |f |. If f is NaN, your function should simply return f .

Test your function by evaluating it for all 2³² values of argument f and comparing the result to what would be obtained using your machine’s floating-point operations.