> > - used = dst - conv->wbuff; > > + size_t sused = (uintptr_t)dst - (uintptr_t)conv->wbuff; > > Any particular reason why there is a cast to uintptr_t here? I don't > think there is a guarantee that you can calculate an offset by > subtracting uintptr_ts calculated from pointers. The description in the > C Standard only guarantees that you can convert them back to a pointer > which compares the same to the original, but that's it. I don't find any > other promises about uintptr_t.
in this case, they're not necessary it seems. probably left over from my initial attempts at this workaround. .mrg.
