When I first learned about implicit parameters I thought they were a great
idea. The honeymoon ended about the time I wrote some code of the form
let ?foo = 123 in expr2, where expr2 used ?foo implicitly, and debugging
eventually unearthed the fact that ?foo's implicit value was not being set
to
Does this technique extend to polymophic types?
Yes, of course. The type F a b in the earlier message was polymorphic.
Let's say we have the following type:
data D a = C | D a
Is it possible to index the type D a?
I have just lifted the polymorphic Maybe -- which is isomorphic to
your
[EMAIL PROTECTED] wrote:
This is a Related Work section of the previous message.
... again cunning stuff omitted ...
I buy most of this
but IMHO you should make very clear
that there is not just a single safeCoerce, but the TI/init_typeseq
argument has to be constructed and supplied by the
Does anyone know if Haskell is/was used to develop educative games? Do you
recommend some papers on the subject?
Thanks a lot,
-- Andre Furtado
___
Haskell mailing list
[EMAIL PROTECTED]
http://www.haskell.org/mailman/listinfo/haskell
On 2003-08-02 at 14:36PDT Dominic Steinitz wrote:
Could someone explain to me why this doesn't work
test l =
hs
where
hs = map (\x - [x]) [0..abs(l `div` hLen)]
hLen = length $ head hs
whereas this does
test l =
hs
where
hs = map (\x
On Sat, 2 Aug 2003 00:45:07 -0700 (PDT)
Ben Rudiak-Gould [EMAIL PROTECTED] wrote:
When I first learned about implicit parameters I thought they were a
great idea. The honeymoon ended about the time I wrote some code of
the formlet ?foo = 123 in expr2, where expr2 used ?foo implicitly,
and
Ç×°®µÄÅóÓÑ£º
ÄúºÃ£¡
ÕâÊÇÀ´×ÔÏÃÃÅÊб¦Áé¿Æ¼¼ÍøÂçÓÐÏÞ¹«Ë¾µÄÎʺ¸ÐлÄúÊÕ¿´Õâ·âÓʼþ¡£ÎÒÃÇÕæ³ÏµÄÏ£Íû
ÄúÄܳÉΪÎÒÃÇÔÚ¹óµØÇøµÄÖØÒª»ï°é¡£ÎÒÃÇÊÇÒ»¼Ò²ÉÓÃÊÀ½ç¸ßм¼Êõ½á¾§£¬Ñо¿¡¢ÍƹãºÍ·¢Õ¹
м¼Êõ£¬ÖÂÁ¦ÓÚ»¥ÁªÍøÐÅÏ¢·þÎñ¡¢ÓòÃû×¢²á·þÎñºÍÐéÄâÖ÷»ú·þÎñµÄ¸ßм¼ÊõÆóÒµ¡£ÏêÇéÇëä¯
ÀÀ:http://www.host-china.com
