// Check to see if the value being passed in is negative (who the hell does
// that?--nobody does; it's the code gremlins, or rum, what does it)
// N.B.: Since 'eval' is of type uint64_t, if it goes negative, it will
// Check to see if the value being passed in is negative (who the hell does
// that?--nobody does; it's the code gremlins, or rum, what does it)
// N.B.: Since 'eval' is of type uint64_t, if it goes negative, it will