Hi all,
I have a question on compiling a concurrent haskell source code
using GHC. Today is my first time playing around with concurrency in
Haskell, and this afternoon, GHC seemed to be able to compile my
code and produced an executable. However, that executable did not
seem to run the
Hi Keith,
With this email I attached the source code. As you can see, it is very simple. And in case you would like to know, I wrote that program for a short tutorial on Haskell for a programming language courseI took last semester.
Thank you very much.
Blessings,
Dennis
Keith Wansbrough
On Friday 25 July 2003 21:48, Dylan Thurston wrote:
Another approach is to make Universe a multi-parameter type class:
class (RealFrac a, Floating a) = Universe u a | u - a where
distanceVector :: u - Vector a - Vector a - Vector a
...
You need to use ghc with '-fglasgow-exts' for this.
Dennis Sidharta wrote:
[ problems with concurrent Haskell ]
I can see two problems in your code:
* forkIO creates daemon threads, so the program terminates immediately.
* Chan is an unbounded channel, so you won't get a ping pong, which
is probably what you expected. MVar is your friend here.
On Mon, 28 Jul 2003, Konrad Hinsen wrote:
What is the general attitude in the Haskell community towards
compiler-specific extensions? My past experience with Fortran and C/C++ tells
me to stay away from them. Portability is an important criterion for me.
It depends which ones. Some are
On Mon, 28 Jul 2003 09:54:11 -0400 (EDT)
Mark Carroll [EMAIL PROTECTED] wrote:
It would be
interesting to see a list of what people think will make it into
Haskell 2 though.
http://haskell.org/hawiki/HaskellTwo
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On Mon, Jul 28, 2003 at 03:42:11PM +0200, Konrad Hinsen wrote:
On Friday 25 July 2003 21:48, Dylan Thurston wrote:
Another approach is to make Universe a multi-parameter type class:
class (RealFrac a, Floating a) = Universe u a | u - a where
distanceVector :: u - Vector a - Vector a -
At 15:40 28/07/03 +0200, Konrad Hinsen wrote:
This is beginning to get a little ugly, but I think that's largely
because you're using type classes in too much of an OO style (this is
I am coming from OO indeed...
Me too.
Twice now I have used Haskell classes in a way suggested by an OO
Hi Sven,
Thanks for the pointer! I will try to play around with MVar.
Sincerely,
DennisSven Panne [EMAIL PROTECTED] wrote:
Dennis Sidharta wrote: [ problems with concurrent Haskell ]I can see two problems in your code:* forkIO creates "daemon threads", so the program terminates immediately.*
