Is it possible to write
type family SameType a b :: Bool
which returns True if a and b are the same type, and False otherwise?
I encountered this problem when I was practicing promoted lists and
tuples in ghc-7.6.1. One of my goal for practice is to write more
modular version of
Well, it seems that this only happens on my machine. I will try to test this
code on different
computer and see if I can reproduce it.
I don't think using existing vector is a good idea - it would make the code
impure.
Janek
Dnia sobota, 24 listopada 2012, Branimir Maksimovic napisał:
I
I'm facing this problem only when I compiled the code using -O2 Flag.
I tried the following,
* Compiled with -O1 Flag (7.4.1), It compiled fine
* Compiled with ghc-7.0.4 with -O2, it's getting compiled successfully but
with the Warning,
SpecConstr
Function `$wa{v s27vx} [lid]'
has one
On Sun, Nov 25, 2012 at 9:36 AM, Takayuki Muranushi muranu...@gmail.com wrote:
Is it possible to write
type family SameType a b :: Bool
which returns True if a and b are the same type, and False otherwise?
I encountered this problem when I was practicing promoted lists and
tuples in
Dear all,
next Tuesday, 27. November 2012, will be our Haskell Meeting in Munich
at 19h30 at Cafe Puck. Please go to
http://www.haskell-munich.de/dates
and hit the button, if you intend to join.
Have a good start into your week,
Heinrich
--
--
Funktionale Programmierung Dr. Heinrich
Greetings,
I'm only taking my very first steps learning Haskell, but I believe
that this mailing list might be appropriate for my question.
How difficult would it be to study category theory and simultaneously
come up with Haskell examples of various results that it presents?
I believe some
Among many programmers, and/or users who manually unpack source tarball
before installing, this idiom is very common:
cabal configure
cabal build
cabal install
This idiom is an urban legend, i.e., a popular error.
cabal install re-does the configure and the build steps, among
other things.
On Sat, Nov 24, 2012 at 1:32 AM, Erik de Castro Lopo
mle...@mega-nerd.com wrote:
Hi all,
It seems the Quasiquotation page on HaskellWiki
http://www.haskell.org/haskellwiki/Quasiquotation
has fallen behind the actually Quasiquotation implementation that
is in ghc-7.4.2 and later.
On Sun, Nov 25, 2012 at 06:09:26PM -0500, Albert Y. C. Lai wrote:
If you begin with cabal configure, the correct idiom is:
cabal configure [flags]
cabal build
[cabal haddock, if you want]
cabal copy
cabal register
Even this does not do the same thing as 'cabal install', because it
does
The general idea of category theory is to come up with formalizations of
common abstract patterns found in mathematical constructs. For example,
there are homomorphisms of groups, vector spaces (under linear
transformations), topological spaces (under continuous functions), etc.
Category theory
Tikhon Jelvis tik...@jelv.is writes:
Have you tried Hoogle? I know you can install it locally and use it from
GHCi or Emacs. I'm not familiar with ri, but from your description I think a
local Hoogle would serve the same purpose with the added benefit of being
able to search by types.
Gytis Žilinskas gytis.zilins...@gmail.com writes:
How difficult would it be to study category theory and simultaneously come
up with Haskell examples of various results that it presents?
There are some aspects of CT that you will not be able to express in Haskell
easily (try encoding the
Thank you two. I have got it working. Compared to ri, I think:
The pro is I could find the package that I want even I do not know it.
The con is I'd have to manually update its data.
On Mon, Nov 26, 2012 at 9:21 AM, John Wiegley jo...@fpcomplete.com wrote:
Tikhon Jelvis tik...@jelv.is writes:
On 24/11/2012, at 5:26 PM, wren ng thornton wrote:
On 11/20/12 6:54 AM, c...@lavabit.com wrote:
Hello,
I know nothing about compilers and interpreters. I checked several
books, but none of them explained why we have to translate a
high-level language into a small (core) language. Is it
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