SetUpClass included purely so we can verify that is run.

We duplicate a group of control bytes to the end. Thus, it is possible that we need to set two control bytes at the same time.

Check for exceptional cases when |x| <= 2^-53 or x < log(2^-1075) or x >= 0x1.6232bdd7abcd3p+9

Check for exceptional cases when: log2(1 - 2^-54) < x < log2(1 + 2^-53) x >= 1024 x <= -1022 x is inf or nan

Check for exceptional cases when: log10(1 - 2^-54) < x < log10(1 + 2^-53) x >= log10(2^1024) x <= log10(2^-1022) x is inf or nan

Check for exceptional cases when |x| <= 2^-53 or x < log(2^-54) or x >= 0x1.6232bdd7abcd3p+9

This function sets all bits in the range from Start to End (inclusive) to true. It assumes that Start <= End.