3 * catch EnvironmentError when writing sharefiles and clean up
4 * try Duff's device in _addmul1()?
5 * memory usage analysis
6 * What Every Programmer Should Know About Memory by Ulrich Drepper
7 * test handling of filesystem exceptional conditions (tricky)
9 ** try multiplication without a lookup table? (to save cache pressure)
10 * conditional compilation to handle a printf that doesn't understand %Zu
11 * try malloc() instead of alloca() (more portable, possibly better for keeping stacks aligned?)
13 * announce on lwn, p2p-hackers