Comments on: Replacing small C programs with Haskell http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/ Existential Pontification and Generalized Abstract Digressions Sun, 05 Feb 2012 23:02:11 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Edward Z. Yang http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-3290 Edward Z. Yang Mon, 02 Jan 2012 16:57:06 +0000 http://blog.ezyang.com/?p=913#comment-3290 Tim: The relevant documentation you're referring to is http://scripts.mit.edu/wiki/Technical_overview_of_scripts.mit.edu Tim: The relevant documentation you’re referring to is http://scripts.mit.edu/wiki/Technical_overview_of_scripts.mit.edu

]]> By: Tim Daly http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-3289 Tim Daly Mon, 02 Jan 2012 16:46:47 +0000 http://blog.ezyang.com/?p=913#comment-3289 You've written a frankenscript that will exist nowhere else. Somebody, someday will have to maintain it. Fortunately, you wrote it in Haskell which has literate programming support. You DID write it as a literate program, right? You wrote down WHY you had to write it as a separate program, right? Good lad. You get a gold star. You’ve written a frankenscript that will exist nowhere else.
Somebody, someday will have to maintain it.
Fortunately, you wrote it in Haskell which has literate programming support.
You DID write it as a literate program, right? You wrote down WHY you
had to write it as a separate program, right? Good lad. You get a gold star.

]]> By: foljs http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-3288 foljs Mon, 02 Jan 2012 16:40:55 +0000 http://blog.ezyang.com/?p=913#comment-3288 <b>should have done it in asm. time coding is greater but time savings in performance of program over long term makes up for it. but i guess asm is too difficult for you. visual basic is good for programmers who like “easy” job.</b> Who let the 15 year olds in? should have done it in asm. time coding is greater but time savings in performance of program over long term makes up for it. but i guess asm is too difficult for you. visual basic is good for programmers who like “easy” job.

Who let the 15 year olds in?

]]> By: Anonymous http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-1949 Anonymous Wed, 23 Mar 2011 01:19:49 +0000 http://blog.ezyang.com/?p=913#comment-1949 should have done it in asm. time coding is greater but time savings in performance of program over long term makes up for it. but i guess asm is too difficult for you. visual basic is good for programmers who like "easy" job. should have done it in asm. time coding is greater but time savings in performance of program over long term makes up for it. but i guess asm is too difficult for you. visual basic is good for programmers who like “easy” job.

]]> By: Edward Z. Yang http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-219 Edward Z. Yang Thu, 18 Mar 2010 07:36:53 +0000 http://blog.ezyang.com/?p=913#comment-219 Hi Daniel, I now see what you're specifically referring to. I've reworded the post to be more clear. Hi Daniel, I now see what you’re specifically referring to. I’ve reworded the post to be more clear.

]]> By: Daniel Lyons http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-218 Daniel Lyons Thu, 18 Mar 2010 07:25:40 +0000 http://blog.ezyang.com/?p=913#comment-218 Edward, With my first remark, I'm just pointing out that when you say "the class of languages (Haskell is just one of a few) that compile straight to C", Haskell is usually compiled straight to _the machine_, skipping right past C code. This is in contrast to Erlang, which has a custom virtual machine, and does not compile either to machine code or to C code. Erlang remains competitive in the performance department, though you can see in the shootout that it suffers compared to GHC and most other compiled-to-the-machine languages, with parallelism being the generally prescribed remedy. If we're discussing implementation language, there may be a correlation between it and speed of the implemented language, but it's easy enough to find any number of counterexamples that I wouldn't put much weight on it. Edward,

With my first remark, I’m just pointing out that when you say “the class of languages (Haskell is just one of a few) that compile straight to C”, Haskell is usually compiled straight to _the machine_, skipping right past C code.

This is in contrast to Erlang, which has a custom virtual machine, and does not compile either to machine code or to C code. Erlang remains competitive in the performance department, though you can see in the shootout that it suffers compared to GHC and most other compiled-to-the-machine languages, with parallelism being the generally prescribed remedy.

If we’re discussing implementation language, there may be a correlation between it and speed of the implemented language, but it’s easy enough to find any number of counterexamples that I wouldn’t put much weight on it.

]]> By: Edward Z. Yang http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-211 Edward Z. Yang Wed, 17 Mar 2010 17:48:52 +0000 http://blog.ezyang.com/?p=913#comment-211 You say it as if we haven't already beaten this joke to death internally. :-) You say it as if we haven’t already beaten this joke to death internally. :-)

]]> By: Andres Salomon http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-210 Andres Salomon Wed, 17 Mar 2010 17:43:05 +0000 http://blog.ezyang.com/?p=913#comment-210 Others have worked on a similar project; you may find it useful to coordinate with them. http://creativebrief.thoughtdistrict.com/wp-content/uploads/2009/07/funny-pictures-static-kitten.jpg (Sorry.) Others have worked on a similar project; you may find it useful to coordinate with them.

http://creativebrief.thoughtdistrict.com/wp-content/uploads/2009/07/funny-pictures-static-kitten.jpg

(Sorry.)

]]> By: Edward Z. Yang http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-180 Edward Z. Yang Sun, 14 Mar 2010 00:36:25 +0000 http://blog.ezyang.com/?p=913#comment-180 Hey Kevin, the improvement as I understand it (I haven't done any empirical tests myself) is that the GCC and LLVM backends have a much larger accumulated store of knowledge about assembly optimizations than the GHC developers have been able to pack into the native code generator that comes with GHC. Hey Kevin, the improvement as I understand it (I haven’t done any empirical tests myself) is that the GCC and LLVM backends have a much larger accumulated store of knowledge about assembly optimizations than the GHC developers have been able to pack into the native code generator that comes with GHC.

]]> By: Kevin RIggle http://blog.ezyang.com/2010/03/replacing-small-c-programs-with-haskell/comment-page-1/#comment-178 Kevin RIggle Sat, 13 Mar 2010 22:38:27 +0000 http://blog.ezyang.com/?p=913#comment-178 What's the advantage of compiling Haskell to native code via C over compiling directly to native code? What’s the advantage of compiling Haskell to native code via C over compiling directly to native code?

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