Correct me if I'm wrong, but ByteStrings can't contain non-ASCII
values, right? I'm looking for something like this pseudo-C:
typedef void (*Callback)(const uint32_t *chars, size_t n_chars, void *);
WriterState *new_state (Callback, void *);
I tried using the Text type, but its conversions to Ptr Word16 are all
O(n) -- not much better than String.
On Thu, Jan 21, 2010 at 22:28, Don Stewart
jmillikin:
Here's the fastest Haskell version I could come up with. It discards all error handling, validation, and correctness in the name of performance, but still can't get anywhere near C: http://hpaste.org/fastcgi/hpaste.fcgi/view?id=16423
Thanks for posting the code.
You're not using bytestrings??
They were invented to deal with the problem of [Char] being a poor structure for large scale string processing, and you should have no problem getting C-like string performance.
http://www.cse.unsw.edu.au/~dons/papers/CSL06.html
-- Don