Hello,
I was trying to build racket snapshot using the using the files on the utah
server[1].
Afterwards I basically do make && make DESTDIR="${pkgdir}" install
This is part of a PKGBUILD script I have been using reliably on arch for
the last few years.
However somewhere around the beginning of
Hello,
the following doesn't typecheck. Is it a bug? Should I avoid
Immutable-Vectors?
#lang typed/racket/base
;DrRacket, version 7.5.0.3 [3m].
(require racket/sequence)
(define-type M (Immutable-Vectorof Number))
(define s
(in-list (ann (list (vector-immutable 1 2 3)
(
;>
> >>> Third, your version with structs can't work because you can't tell
> >>> what type a function expects -- that information is not there at
> >>> runtime.
> >>
> >>
> >> If there is a contract assigned to a func
Hi,
I managed to do the second part using prefab structures, but then I can't
be sure it was created with the right constructor.
Since it seems not doable to get this working with classes I will go back
to untyped code.
On Wednesday, 6 November 2019 20:51:39 UTC+1, bedeke wrote:
>
Hello,
I was trying to type some polymorphic classes but I got stuck early on
making a polymorphic subclass
#lang typed/racket/base
;*1*
(require typed/racket/class)
(define-type (C-class A)(Class [init-field [x A]]))
(define C1%
(class object%
#:∀ (A)
(init-field [x : A])
(super
A cap for an Escher-like egg-face.
long live the plot library.
code at http://pasterack.org/pastes/39958
B.
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On Tuesday, 12 March 2019 19:21:12 UTC+1, Ben Greenman wrote:
>
> You can also use sequences:
>
> #lang racket/base
> (require racket/sequence)
>
> (sequence-ref (in-producer (let ([i 0]) (lambda () (begin0 i (set! i
> (+ i 1))
> 2000)
> (sequence-ref (in-naturals)
>
On Tuesday, 12 March 2019 16:06:59 UTC+1, Matthias Felleisen wrote:
>
>
>
> > On Mar 12, 2019, at 10:48 AM, bedeke >
> wrote:
> >
> >
> > Sorry for not being clear.
> > I knew that increasing the memory limit could make this run without
> pr
On Tuesday, 12 March 2019 14:50:38 UTC+1, Matthias Felleisen wrote:
>
>
>
> On Mar 12, 2019, at 3:10 AM, bedeke >
> wrote:
>
> Hello,
>
> when running any of the following the program runs out of memory:
>
> #lang racket/base
> (require racket/stream)
>
Hello,
when running any of the following the program runs out of memory:
#lang racket/base
(require racket/stream)
(stream-ref (let ([i 0])(stream-cons i (let loop ()(set! i (+ i 1))(stream-cons
i (loop)
2000)
(stream-ref (for/stream ([i (in-naturals)]) i)
2000
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