On 17-Feb-2000, Brian Boutel <[EMAIL PROTECTED]> wrote:
> On Thursday, February 17, 2000 3:03 PM, Fergus Henderson
> [SMTP:[EMAIL PROTECTED]] wrote:
> >>
> > If Haskell had explicit imports and exports of instance declarations,
> > then I could perhaps buy this argument. But it doesn't. In Hask
On Thursday, February 17, 2000 3:03 PM, Fergus Henderson
[SMTP:[EMAIL PROTECTED]] wrote:
>>
> If Haskell had explicit imports and exports of instance declarations,
> then I could perhaps buy this argument. But it doesn't. In Haskell,
> all instance declarations defined in a module are always ex
On 16-Feb-2000, Jeffrey R. Lewis <[EMAIL PROTECTED]> wrote:
> To my mind, the biggest flaw with overlapping instances is the separate
> compilation issue: to whit, if the `instance Eq (Maybe String)' was in
> a different module, not imported by the module defining `f', then
> Marcin's definition o
On 16-Feb-2000, Simon Marlow <[EMAIL PROTECTED]> wrote:
>
> The easiest way is to declare mmap as a foreign function using foreign
> import, then build a little wrapper around it. Unfortunately you won't be
> able to turn the resulting memory into an array (even a ByteArray), since
> these are a
Marcin 'Qrczak' Kowalczyk wrote:
> Wed, 16 Feb 2000 15:45:07 +0300 (MSK), S.D.Mechveliani <[EMAIL PROTECTED]> pisze:
>
> > I fear, I am loosing the thread. The discussion was on the
> > overlapping instances. And this latter question is maybe, on giving
> > a polymorphic function to another funct
Sven Panne <[EMAIL PROTECTED]> wrote,
> [ Simply can't resist... ;-) ]
>
> Simon Marlow wrote:
> > The easiest way is to declare mmap as a foreign function using
> > foreign import, then build a little wrapper around it.
>
> A problem will be: What Haskell types should be used for size_t and
>
[EMAIL PROTECTED] (Marcin 'Qrczak' Kowalczyk) writes:
> I do not blame ghc for that. IMHO overlapping instances together
> with the rest of Haskell are impossible to be safely and effectively
> implemented.
>
> Unless one accepts that subtle differences in contexts, ones
> depending on the implem
Wed, 16 Feb 2000 15:45:07 +0300 (MSK), S.D.Mechveliani <[EMAIL PROTECTED]> pisze:
> I fear, I am loosing the thread. The discussion was on the
> overlapping instances. And this latter question is maybe, on giving
> a polymorphic function to another function as the argument. I am
> not an implemen
[ Simply can't resist... ;-) ]
Simon Marlow wrote:
> The easiest way is to declare mmap as a foreign function using
> foreign import, then build a little wrapper around it.
A problem will be: What Haskell types should be used for size_t and
off_t? Getting this done properly would require autoco
Title: RE: Wanted: mmap or other fast IO
> Is there any interface to mmap(2) available? Something that
> behaves like
> an immutable array would be great.
>
> An mmap may have a signature like
>
> mmap :: Ix a, ?? b => Handle -> IO (Array a b)
>
> I've no idea what types should be allowed
Marcin 'Qrczak' Kowalczyk <[EMAIL PROTECTED]> writes on 15 Feb 2000
>> Here A is a superclass for B, so, `B a =>' is a more special
>> condition than `A a =>'.
> I am not brave enough to try to formulate general rules of determining
> which context is more general, [..
On glasgow-haskell-users, Simon Peyton-Jones <[EMAIL PROTECTED]>
answered my question arising from a different thread:
>
> | This is something that I have long been wondering about
> | (perhaps it is just because of my ignorance):
> | Wouldn't stable pointers be a cheaper and more appropriate
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