Hi people (and Ralf and Alex),
I found a bug in the SYB with class library when trying to implement
generic equality. I am hoping that someone in the Cafe (maybe Ralf)
can confirm it is a bug, or maybe show me that I am doing something
wrong.
I am using the Scrap your boilerplate with
Since no one mentioned automatic differentiation (AD), I will. I
think AD is a nice example of using type classes and higher order
functions to get small and useful code. Maybe this example is not
ideal for the audience, but anyway, Simon has the last word.
Here is how demo would go:
Dear all,
Yesterday I darcs-got the GHC HEAD to play with the debugger and I
have the following impressions/bug/suggestions:
* I would like to know whether I am debugging mode (i.e. in a
breakpoint) or not. For example
*Main -- normal prompt
and, for example,
*Main:[1] -- in
Dear all,
I have added a page to the GHC commentary explaining how to use the
PAPI library together with GHC to gather performance information from
your CPU (cache misses, branch misprediction). At present only cache
miss information is supported in a platform independent way (though
not
The URL might be useful to some :)
http://hackage.haskell.org/trac/ghc/wiki/PAPI
On Jan 11, 2007, at 17:10, Alexey Rodriguez Yakushev wrote:
Dear all,
I have added a page to the GHC commentary explaining how to use the
PAPI library together with GHC to gather performance information
Hi Andy,
On Dec 20, 2006, at 9:15, Andy Georges wrote:
Well, AFAIK, PAPI abstracts away the platform dependencies quite
well, so I guess your code can be run straightforward on all IA-32
platforms (depending on the events you wish to measure, which may
or may not be present on all
Andy,
The GHC head can currently build against PAPI[1], a library for
gathering CPU statistics. At the moment you can only gather such
statistics for AMD Opteron but it shouldn't be difficult to port it
to other CPUs after a bit of browsing around the PAPI docs.
Installing PAPI requires
Generic Haskell version 1.60 (Diamond)
We are happy to announce the fourth release of Generic Haskell,
an extension of Haskell that facilitates generic programming.
Generic Haskell includes the following features:
* type-indexed
On Dec 23, 2005, at 11:53, Arjen wrote:
On Fri, 23 Dec 2005, Joel Reymont wrote:
Folks,
I have been looking at the code for the Arrows for invertible
programming paper (http://www.cs.ru.nl/A.vanWeelden/bi-arrows/) and
I have a question about syntax. ghci surely does not like it.
I've
