On 07/11/2011 17:57, Ian Lynagh wrote:
On Mon, Nov 07, 2011 at 05:02:32PM +, Simon Marlow wrote:
Basically, imagine a reversible transformation:
encode :: String - [Word8]
decode :: [Word8] - String
this transformation is applied in the appropriate direction by the
IO library to
On 07/11/2011 17:32, John Millikin wrote:
On Mon, Nov 7, 2011 at 09:02, Simon Marlowmarlo...@gmail.com wrote:
I think you might be misunderstanding how the new API works. Basically,
imagine a reversible transformation:
encode :: String - [Word8]
decode :: [Word8] - String
this
On 02/11/2011 21:40, Max Bolingbroke wrote:
On 2 November 2011 20:16, Ian Lynaghig...@earth.li wrote:
Are you saying there's a bug that should be fixed?
You can choose between two options:
1. Failing to roundtrip some strings (in our case, those containing
the 0xEFNN byte sequences)
2.
On the haskell-cafe as well as the beginners mailing lists, there
frequently (for some value of frequent) are posts where the author inquires
about a badly performing programme, in the form of stack overflows, space
leaks or slowness.
Often this is because they compiled their programme without
Am Montag, den 07.11.2011, 21:41 + schrieb Barney Hilken:
The problem with this approach is that different labels do not have
different representations at the value level.
I think this is an advantage, because it means you don't have to carry
this stuff about at runtime.
This
On Tue, Nov 8, 2011 at 6:31 AM, Daniel Fischer
daniel.is.fisc...@googlemail.com wrote:
On the haskell-cafe as well as the beginners mailing lists, there
frequently (for some value of frequent) are posts where the author inquires
about a badly performing programme, in the form of stack
On 05/11/2011 23:41, Christian Brolin wrote:
I try to set-up a gnu makefile for compiling Haskell programs with GHC.
I want to generate dependencies automatically and I want to put my
object (.o) files in a binary specifc directories to be able to compile
for different architechtures. The
On Tue, Nov 8, 2011 at 03:04, Simon Marlow marlo...@gmail.com wrote:
As mentioned earlier in the thread, this behavior is breaking things.
Due to an implementation error, programs compiled with GHC 7.2 on
POSIX systems cannot open files unless their paths also happen to be
valid text according
On 07/11/2011 14:50, Ryan Newton wrote:
Hi GHC users,
When implementing certain concurrent systems-level software in Haskell
it is good to be aware of all potentially blocking operations.
Presently, blocking on an MVar is explicit (it only happens when you
do a takeMVar), but blocking on a
On Tue, Nov 8, 2011 at 7:11 AM, David Fox dds...@gmail.com wrote:
On Tue, Nov 8, 2011 at 6:31 AM, Daniel Fischer
daniel.is.fisc...@googlemail.com wrote:
On the haskell-cafe as well as the beginners mailing lists, there
frequently (for some value of frequent) are posts where the author
On 08/11/2011 14:31, Daniel Fischer wrote:
On the haskell-cafe as well as the beginners mailing lists, there
frequently (for some value of frequent) are posts where the author inquires
about a badly performing programme, in the form of stack overflows, space
leaks or slowness.
Often this is
On Tue, Nov 8, 2011 at 15:31, Daniel Fischer wrote:
Often this is because they compiled their programme without optimisations,
simply recompiling with -O or -O2 yields a decently performing programme.
So I wonder, should ghc compile with -O1 by default?
What would be the downsides?
On Tue, Nov 8, 2011 at 8:16 AM, Simon Marlow marlo...@gmail.com wrote:
On 08/11/2011 14:31, Daniel Fischer wrote:
On the haskell-cafe as well as the beginners mailing lists, there
frequently (for some value of frequent) are posts where the author
inquires
about a badly performing programme,
On Tuesday 08 November 2011, 17:16:27, Simon Marlow wrote:
most people know about 1, but I think 2 is probably less well-known.
When in the edit-compile-debug cycle it really helps to have -O off,
because your compiles will be so much quicker due to both factors 1 2.
Of course. So defaulting
Am Montag, den 07.11.2011, 23:30 + schrieb Simon Peyton-Jones:
Wolfgang
Is there a wiki page giving a specific, concrete design for the
proposal you advocate? Something at the level of detail of
http://hackage.haskell.org/trac/ghc/wiki/Records/OverloadedRecordFields?
Well, I don’t
My stance is that it is possibly better if we do not try to include a
one-size-fits-it-all record system into the language, but if the
language provided support for basic things that almost all record
system *libraries* would need.
Agreed. To the extent that such libraries could be improved
On 11/8/11 6:04 AM, Simon Marlow wrote:
I really think we should provide the native APIs. The problem is that
the System.Posix.Directory API is all in terms of FilePath (=String),
and if we gave that a different meaning from the System.Directory
FilePaths then confusion would ensue. So perhaps
On Tue, Nov 8, 2011 at 3:01 PM, Daniel Fischer
daniel.is.fisc...@googlemail.com wrote:
On Tuesday 08 November 2011, 17:16:27, Simon Marlow wrote:
most people know about 1, but I think 2 is probably less well-known.
When in the edit-compile-debug cycle it really helps to have -O off,
because
Quoting Conrad Parker con...@metadecks.org:
I don't think compile time is an issue for new users when building
HelloWorld.hs and getting the hang of basic algorithms and data
structures. Anyone could explicitly set -O0 if they are worried about
compile times for a larger project.
I don't
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