I have a need to read large lists of numbers from a file and operate on
them. I tried the following:
read' =do s - readFile "temp"
print $ sum $ map (fst.head.readDec)(lines s)
But this is quite slow even for 1000 numbers.
Are there any other ways to do it faster? Will it help
| Is there any way to profile the "burn-rate" of a Haskell program?
|
| Profiling as I understand it tells you what the "live" information
| on the heap is. It doesn't tell you what garbage collector has just
| freed. So, if a function were generating tons of intermediate values
| which it then
On Mon, Apr 09, 2001 at 09:36:45AM -0700, anatoli wrote:
It seems that fundeps are powerful enough to do
compile-time dimensional analysis in Haskell. That
is, one can devise types that represent dimensions of
quantities, such as (meter / second) or
(kilogram * meter / second^2),
and have
At 2001-04-09 09:36, anatoli wrote:
It seems that fundeps are powerful enough to do
compile-time dimensional analysis in Haskell.
I'm very impressed and slightly frightened. And there was me complaining
that since you can't parameterise types in Haskell by integer (or other
values) the way
At 2001-04-09 09:36, anatoli wrote:
4) Allow several unit systems (such as SI and Imperial)
to coexist.
That's easy. Just hide the 'Dimensioned' constructor so no-one can see
what system you're using.
--
type One = Succ Zero
type Mass rep = Dimensioned One Zero Zero rep
type Length
I like it!
:
| 3) Allow arbitrary user-defined "fundamental" dimensions
|(for things like dollars or radians) -- this may be
|very tricky;
|
| 4) Allow several unit systems (such as SI and Imperial)
|to coexist.
Some suggestions/quibbles...
If you clearly make the type
1) What is a fundep?
2) This is a very interesting topic, and rather complex. It
has come up (dimensions, units, -- not Haskell implementations
of them) in some recent work on STEP (ISO 10303). I'm only
now trying to come up to some speed on Haskell, and only now
trying to recall what I used
Dear all,
here are the results from my first attempts to install
ghc-5.00 on my linux machine:
o Using the binary package:
I was not able to install the documentation:
make install-docs
./mkdirhier /home/ralf/Lang/share/ghc-5.00
cp -r html/* /home/ralf/Lang/share/ghc-5.00
chmod -R 644
luc wrote:
I tried FranTk with ghc 4.08 and got :
(this is the "fixed" FrankTk, alledged working with 4.06, if im not
wrong)
are there any difference with 4.06 and 4.08 ?
Below is a list of fixes to get FranTk working with ghc4.08.
Jan
Run configure like normal, i.e.:
./configure
