Bulat Ziganshin wrote:
[ideas including reverseMapM_]
you will laugh, but speed of your two solutions depends on so many
factors (including size of CPU cache) that noone can say that is
better in general. although for small lists reverseMapM_ should be
faster than reverse+mapM. what will be
Brian,
You might also want to take a look at the list fusion functionality in
GHC which often can help optimize your programs when programming with
lists.
http://www.haskell.org/ghc/docs/latest/html/users_guide/rewrite-rules.html#id3153234
It doesn't help in your particular program but it might
This is interesting, thanks.
I propose to add INLINE pragmas to withMVar and friends.
Having an interface for simple locks sounds like a good idea to me.
Would you like to send a patch?
This won't affect Handle I/O unfortunately, because we need block to
protect against asynchronous
Are you asking for the same thing as described under Permit qualified
exports on this Haskell Prime page?
http://haskell.galois.com/cgi-bin/haskell-prime/trac.cgi/wiki/ModuleSyst
em
Simon
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ByteString's are strict in their contents, so when you do an
hGetContents you'll read the entire file into memory! This negates
any laziness benefits right off the bat. The trickiest part is the
lazy IO, you have to use unsafeInterleaveIO or something similar.
Below is a program that does
I'm trying to write some true type library (implementing only the tables
I need at the moment).
When loading a font file it doesn't make sense to parse every table
which isn't needed. So lazyness of haskell would perfectly meet
requirements here.
My problem: NewBinary supports memory buffers.
On Wed, May 03, 2006 at 12:07:19PM +0100, Simon Marlow wrote:
This won't affect Handle I/O unfortunately, because we need block to
protect against asynchronous exceptions. I'm still not certain you
won't need that in the stream library, too: check any stateful code (eg.
buffering) and
Hello Marc,
Thursday, May 4, 2006, 2:21:58 AM, you wrote:
getTable1 bh = do
bh = seek bh offset -- seek to the beginning of the table
get binary data and build internal representation
return list of glyph and outlines and ...
just add unsafePerformIO:
getTable1 bh = unsafePerformIO $
Hello John,
Thursday, May 4, 2006, 12:33:54 AM, you wrote:
This won't affect Handle I/O unfortunately, because we need block to
protect against asynchronous exceptions. I'm still not certain you
won't need that in the stream library, too: check any stateful code (eg.
buffering) and
