Hi, Andy Wingo <wi...@pobox.com> skribis:
> On Sat 09 Jun 2012 17:16, Thien-Thi Nguyen <t...@gnuvola.org> writes: > >> If you want to make a case for such a facility, why not >> show some code, both without (status quo) and with (proposed)? >> It should be clear what expressiveness is gained, and how. > > For example, let's say I mmap a big file. > > (define x (mmap-file "/usr/lib/debug/lib/x86_64-linux-gnu/libc-2.13.so")) > > I did some computation and have figured out that there is a region of > interest between bytes 121241 and 121263 that interests me. I would > like to be able to pass off that region to some other piece of code, > without giving it access to the entire bytevector. I would also like to > be able to pass around What about using copying (or rather, copy-on-write) sub-bytevectors to start with? That would avoid the aliasing issue; OTOH COW would make the implementation more complex. Thanks, Ludo’.
