Jerzy Karczmarczuk wrote:
>
> Brian Boutel to Sergey Mechveliani:
>
> > > There is no scientific reason why all computations with types and
> > > type resolution should preceed all computations with non-types.
>
> > No scientific reason, but a strong engineering reason.
> >
> > The engineerin
Prompted by a suggestion from Sigbjorn, I propose to clarify
the description of Directory.getDirectoryContents. Current
description:
"Computation getDirectoryContents dir returns a list of all entries in
dir."
I propose to add:
"Each entry in the returned list is named relative to the direc
An apparently-innocuous suggestion about adding default methods for
sinh and cosh led to a flood of mail. Since no consensus emerged, I
plan to leave things as they are in the Haskell 98 Report. Namely,
the following default methods for the Floating class are there:
x**y = exp (log x *
Has anyone made a program for Hugs that allows you to add type definitions
and top level functions to the Main module from the interpreter command
line? I find it odd that I have load from a text file to experiment with
data types, classes, etc. If this sort of thing is not available convince
me e
Hi everybody,
thanks for all the answers!
On Fri, Oct 19, 2001 at 09:55:00AM +0200, Janis Voigtlaender wrote:
[...]
> You might try the following version that does not build up huge data
> structures in accumulating parameters to output them only in the two
> base cases. Rather, it produces par
Brian Boutel to Sergey Mechveliani:
> > There is no scientific reason why all computations with types and
> > type resolution should preceed all computations with non-types.
> No scientific reason, but a strong engineering reason.
>
> The engineering idea is to test a design with all availabl
- Original Message -
From: "Colin Paul Adams"
...
> But this seems to assume there is a one-to-one mapping of upper-case
> to lower-case equivalent, and vice-versa. Apparently this is not
> so.
True. It's quite tricky. See below.
> It seems that whilst the Unicode database's definit
19 Oct 2001 06:09:09 +0100, Colin Paul Adams <[EMAIL PROTECTED]> pisze:
> But this seems to assume there is a one-to-one mapping of upper-case
> to lower-case equivalent, and vice-versa. Apparently this is not so.
Indeed, but there exists a default locale-independent case mapping.
Language-speci
Hello,
Hi,
I have a script here
interleave :: [Integer] -> [Strings] ->
[String]
interleave (x:xs) (y:ys)
= words [a | a <- (unwords
[(show x), (filter (/= 1) y), "+"])]
Firstly, "Strings" is not a standard type. I suspect
you mean "String" so the type signature is
interleave :: [In
"Simon Marlow" <[EMAIL PROTECTED]> writes:
> > Well, in Haskell each character of the string takes 20 bytes: 12 bytes
> > for the list cell, and 8 bytes for the character itself
Ahem, _Haskell_ mandates no such thing. Perhaps you are talking
about a specific implementation? ghc probably.
> I
> "Stephanie" == Stephanie Randles <[EMAIL PROTECTED]> writes:
Stephanie> Hi, I have a script here
Stephanie> interleave :: [Integer] -> [Strings] -> [String]
Stephanie> interleave (x:xs) (y:ys) = words [a | a <- (unwords
Stephanie> [(show x), (filter (/= 1) y), "+"])]
S
Hi,
I have a script here
interleave :: [Integer] -> [Strings]
-> [String]interleave (x:xs)
(y:ys) = words [a | a <-
(unwords [(show x), (filter (/= 1) y), "+"])]
and the error message i receive is
(Instance of Num Char required for definition of
interleave)
and I don't un
Have you looked in the list library? partition or groupBy may be what you want.
Dominic.
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Till Doerges writes:
> I tried to implement a function that separates a list into two parts
> according to a list of indices given. (Does anything like that perhaps
> exist already in the Prelude?)
> ...
>
> 1) Could anybody please explain the behaviour of select and select'
> to me?
>
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