Pairs are special in both traditional Racket and Chez Scheme.
In the traditional Racket implementation, every allocated object has a
16-bit tag, and one of those is "pair". For a structure, the tag is
"structure", and then there's another word for the structure type. So,
the test for a pair is fas
I recall reading some 6.x code for RacketScript, and in 6.x world pair
was simply a pair of pointers in C structure[1] and `cons` was again a
primitive function that created those C objects[2]. No special
representation in byte-code [all values are opaque to bytecode (except
ints and floats I think
Hello all,
There's something I have been very curious of lately, about low level
aspects of Racket's compiler.
First of all, I have always considered "cons" to be essentially the same as
a struct:
(struct cons [hd tl] #:transparent)
(define car (procedure-rename cons-hd 'car))
(define cdr (proc
Cool, thanks!
On Mon, Nov 26, 2018 at 11:20 PM Greg Hendershott
wrote:
> make-log-receiver returns a synchronizable event; you start a thread
> to loop and sync on that. Formatting and disposition is up to you.
>
> 1. Example from XREPL, displaying to stdout with `;` comment chars
> prepended:
>
If you recently tried to join the `racket-money` email list, by posting
an introduction like "https://www.neilvandyke.org/racket-money/"; said,
but you received an error email from Google Groups, could you please try
again now?
(Sorry; I broke something with the list settings recently, but it
What do people think about the following way of providing Scribble API
documentation from a module?
* The Scribble documentation for a package comes from a combination of
the package's `info` module and inline documentation from one or modules
that make up the package.
* The exact form of in
FWIW, when I started CS in 1980 at Arizona, Griswold had moved on to Icon and
no longer seemed to care about Snobol. He definitely thought of Icon as an
improvement over Snobol the way Racket improves on Scheme. — Matthias
> On Nov 26, 2018, at 9:59 PM, George Neuner wrote:
>
>
> On 11
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