At Tue, 18 Sep 2012 20:46:40 -0400, Eli Barzilay wrote: > A few minutes ago, Matthew Flatt wrote: > > > > Using `call/cc' for generators is effectively a hint to the run-time > > system that the continuation doesn't need to compose. That hint is > > useful only because of the way that continuations are implemented > > internally. > > So `call/cc' is faster than one of the delimited ones? > > -- I tought that the main cost would be in the amount of stack saved > which would make delimited ones faster,
There's no such thing as an un-delimited continuation in Racket. A continuation captured with `call/cc' is delimited by a prompt, just like a continuation captured with `call-with-composable-continuation'. The difference is whether the continuation is composable (at a boundary other than a prompt). ____________________ Racket Users list: http://lists.racket-lang.org/users
