Comments on: F#: Word Count using a Dictionary http://www.markhneedham.com/blog/2009/12/20/f-word-count-using-a-dictionary/ Thoughts on Software Development Sat, 11 Feb 2012 23:17:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Jon Harrop http://www.markhneedham.com/blog/2009/12/20/f-word-count-using-a-dictionary/comment-page-1/#comment-28790 Jon Harrop Tue, 22 Dec 2009 03:36:33 +0000 http://www.markhneedham.com/blog/?p=1959#comment-28790 I guess your problem with stack overflows stems from your use of Seq.append which concatenates IEnumerables. Ironically, this is a source of stack overflows because it is written in C# code and, consequently, does not use tail calls. Traversing a sequence composed in this way leaks stack space and eventually overflows the stack. I have written a more idiomatic and efficient F# solution: http://fsharpnews.blogspot.com/2009/12/zach-cox-word-count-challenge.html I guess your problem with stack overflows stems from your use of Seq.append which concatenates IEnumerables. Ironically, this is a source of stack overflows because it is written in C# code and, consequently, does not use tail calls. Traversing a sequence composed in this way leaks stack space and eventually overflows the stack.

I have written a more idiomatic and efficient F# solution:

http://fsharpnews.blogspot.com/2009/12/zach-cox-word-count-challenge.html

]]> By: Rick Minerich's Development Wonderland : F# Discoveries This Week 12/21/2009 http://www.markhneedham.com/blog/2009/12/20/f-word-count-using-a-dictionary/comment-page-1/#comment-28766 Rick Minerich's Development Wonderland : F# Discoveries This Week 12/21/2009 Mon, 21 Dec 2009 17:11:22 +0000 http://www.markhneedham.com/blog/?p=1959#comment-28766 [...] Mark Needham does Word Count using a Dictionary [...] [...] Mark Needham does Word Count using a Dictionary [...]

]]> By: Tweets that mention F#: Word Count using a Dictionary at Mark Needham -- Topsy.com http://www.markhneedham.com/blog/2009/12/20/f-word-count-using-a-dictionary/comment-page-1/#comment-28698 Tweets that mention F#: Word Count using a Dictionary at Mark Needham -- Topsy.com Sun, 20 Dec 2009 10:17:29 +0000 http://www.markhneedham.com/blog/?p=1959#comment-28698 [...] This post was mentioned on Twitter by Mark Needham, planettw. planettw said: Mark Needham: F#: Word Count using a Dictionary: Having spent some time unsuccessfully trying to make my F# attempt... http://bit.ly/7XnPMd [...] [...] This post was mentioned on Twitter by Mark Needham, planettw. planettw said: Mark Needham: F#: Word Count using a Dictionary: Having spent some time unsuccessfully trying to make my F# attempt… http://bit.ly/7XnPMd [...]

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