I'm thinking you're missing the point. The point is to copy without writing, and that requires some knowledge (whether static or runtime) of whether anyone else has a reference to my data--which copy-on-write won't give me.
David On Thu, Mar 08, 2007 at 11:15:25AM -0800, Dan Weston wrote: > Or possibly more generally copy-on-write, which requires one more level > of indirection (handle instead of ptr). Since you are talking about > using ForeignPtr, this is already within your power to prototype, I > should think. > > Dan > > Dan Piponi wrote: > >On 3/8/07, David Roundy <[EMAIL PROTECTED]> wrote: > > > >>I started wondering whether there's a solution that would allow us to > >>write pretty high-level pure functional code, while the RTS can realize > >>at run-time that we have the only reference to the input argument and > >>that it is therefore safe to consume it destructively. > > > >I think you're talking about uniqueness typing which is supported by > >the programming language Clean. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
