2010/11/18 Felix <fe...@call-with-current-continuation.org>: > [...] > I've put together a little library of generic "sequence" operations, > and would like to get some feedback, since I'm not sure about the > nomenclature and API. > [...]
Hello, in my opinion this library is a good idea. A feature I would like to see in this kind of library would be some comprehension mechanism (similar to SRFI-42 or Racket's for comprehensions). I also noticed that iterator operations are apparently broken when the iterator is based on a list: $ csi CHICKEN (c)2008-2010 The Chicken Team (c)2000-2007 Felix L. Winkelmann Version 4.6.3 linux-unix-gnu-x86 [ manyargs dload ptables ] compiled 2010-11-12 on kali (Linux) ; [... *snip* loading modules ...] #;1> (use sequences) ; [... *snip* loading modules ...] #;2> (define l '(foo bar baz)) #;3> (define i (iterator l)) #;4> (elt l i) Error: (elt0-generic) argument mismatch - was given `((foo bar baz) #<iterator>)' but expected: ((elt0-generic<<list>-<fixnum>> <list> <fixnum>) (elt0-generic<<vector>-<fixnum>> <vector> <fixnum>) (elt0-generic<<vector>-<random-access-iterator>> <vector> <random-access-iterator>) (elt0-generic<<string>-<fixnum>> <string> <fixnum>) (elt0-generic<<string>-<random-access-iterator>> <string> <random-access-iterator>) (elt0-generic<<linear-sequence>-<linear-iterator>> <linear-sequence> <linear-iterator>) (elt0-generic<<linear-sequence>-<fixnum>> <linear-sequence> <fixnum>) (elt0-generic<<random-access-sequence>-<random-access-iterator>> <random-access-sequence> <random-access-iterator>) (elt0-generic<<random-access-sequence>-<fixnum>> <random-access-sequence> <fixnum>)) Call history: <syntax> (elt l i) <eval> (elt l i) <-- #;4> (advance i) Error: bad argument type - not a structure of the required type (foo bar baz) linear-sequence Call history: <syntax> (advance i) <eval> (advance i) <-- Ciao, Thomas -- When C++ is your hammer, every problem looks like your thumb. _______________________________________________ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users