sorted-map-by value
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Mibu
Dec 27, 2008, 1:20:45 AM12/27/08
to Clojure
Is there a way to sort a sorted-map-by by value without a letrec?
kwatford
Dec 27, 2008, 12:50:18 PM12/27/08
to Clojure
Sorted maps sort only on keys, sorry. I was going to suggest using
(sort-by frest foo) to at least get a sequence in the right order, but
it seems like sorting might be broken at the moment? Looks like this
response has turned into a bug report...
user=> (sort [3 1 2])
java.lang.ClassCastException: clojure.core$compare__2931
(NO_SOURCE_FILE:0)
This is most likely because the comparator argument has been tagged as
a Comparator, but the default 'compare' isn't a Comparator.
user=> (sort (comp compare) [3 1 2])
(1 2 3)
user=> (sort-by frest (comp compare) foo)
java.lang.ClassCastException: clojure.core$sort_by__3528$fn__3531
(NO_SOURCE_FILE:0)
The comparison function that sort-by builds isn't a Comparator either.
Drat.
(sort-by frest foo) to at least get a sequence in the right order, but
it seems like sorting might be broken at the moment? Looks like this
response has turned into a bug report...
user=> (sort [3 1 2])
java.lang.ClassCastException: clojure.core$compare__2931
(NO_SOURCE_FILE:0)
This is most likely because the comparator argument has been tagged as
a Comparator, but the default 'compare' isn't a Comparator.
user=> (sort (comp compare) [3 1 2])
(1 2 3)
user=> (sort-by frest (comp compare) foo)
java.lang.ClassCastException: clojure.core$sort_by__3528$fn__3531
(NO_SOURCE_FILE:0)
The comparison function that sort-by builds isn't a Comparator either.
Drat.
kwatford
Dec 27, 2008, 1:00:04 PM12/27/08
to Clojure
Oh, nevermind. I hadn't switched my svn over to the Google Code
repository, so I was on 1162... up to 1185 and we're ok.
So yeah.
user=> (sort-by frest {:a 2 :b 3 :c 1})
([:c 1] [:a 2] [:b 3])
repository, so I was on 1162... up to 1185 and we're ok.
So yeah.
user=> (sort-by frest {:a 2 :b 3 :c 1})
([:c 1] [:a 2] [:b 3])
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