I think Ed’s structs package explicitly makes use of this :) On Wed, May 2, 2018 at 7:31 AM Michal Terepeta <michal.terep...@gmail.com> wrote:
> Hi all, > > I have a quick question about ArrayArray#. Is it safe to store *both* an > ByteArray# and ArrayArray# within the *same* ArrayArray#? For instance: > - at index 0 of an ArrayArray# I store a different ArrayArray#, > - at index 1 of that same ArrayArray# I store a ByteArray#. > > It seems to me that this should be safe/supported from the point of view of > the runtime system: > - both ArrayArray# and ByteArray# have the same kind/runtime > representation, > - the arrays have a header that tells rts/GC what they are/how to handle > them. > (But I, as a user, would be responsible for using the right primop with the > right index to read them back) > > Is this correct? > > Thanks a lot! > > - Michal > _______________________________________________ > ghc-devs mailing list > ghc-devs@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >
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