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<lispmacs>
if I create an enum type with '_enum, can I pull out the values of the symbols again (say for comparison)?
<lispmacs>
like, (_enum '(OK = 0 FAIL = 1)) then (= OK (_somefunc))
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<greghendershott>
lispmacs: I don't think so. I think it only means you could use 'OK when calling an FFI wrapper declared to take an argument of that _enum type.
<greghendershott>
but I haven't worked much with FFI lately (or really that much, ever)
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<lispmacs>
greghendershott: i have a C library that has functions that returns values of an enum type, so I was just wondering how to compare. I guess I could also define similar normal symbols that match those numbers value
<lispmacs>
or, maybe I could define those values anyway? despite being _enum'd, though don't seem to have a value attached to the symbols themselves
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<greghendershott>
That seems reasonable to just make a normal define for each.
<danderson>
Thanks for helping me debug! I was about to ask in total confusion why my lexer wasn't matching my test input, and in the process of putting together the paste, figured it out.
<danderson>
(turns out ' isn't an alphabetic character, who knew)
<J_Arcane>
Woo! Heresy now running on my PowerBook G4 in greghendershott's racket-mode
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<soegaard>
A PowerPc ?
<J_Arcane>
Yep.
<soegaard>
Missed the train on those.
<J_Arcane>
Running 6.2.1 via Homebrew
<J_Arcane>
it's ... not entirely without some ricketyness.
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<J_Arcane>
Only the terminal version of Emacs works, and DrRacket won't work even if you install it, because missing dependencies
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<J_Arcane>
the bigger problem is I don't remember how to use emacs. XD
<bremner>
that's what we call a "learning opportunity" ;)
<J_Arcane>
also parinfer doesn't work which makes me sad. :(
<J_Arcane>
I'm curious if I'd have better luck with the MacPorts packages, but I'd have to uninstall Tigerbrew to find out because apparently they do not get along.
<soegaard>
J_Arcane: It's fun to get an old system alive again. I recently bought a "revival kit" for my old Amiga 500.
<J_Arcane>
soegaard: Yah. I have a MiST FPGA in the other room setup as an A1200
<soegaard>
An extension has slots for two compact flash cards, and the amiga thinkgs it is a harddisj.
<soegaard>
The MIST/MISTer project is really nice.
<J_Arcane>
yah, CF->IDE is how I went for the PowerBook's new hard drive.
<soegaard>
Ironically I never used CF cards at the time they were current.
<J_Arcane>
yeah. what I found frustrating is how expensive they are still
<soegaard>
Yeah - I looked around for an sd card solution - but couldn't find any.
<J_Arcane>
though apparently CF->SD adapter cards can work with the IDE adapters, so next time I go this route I might try that instead to save money on storage
<soegaard>
Ooh! Is that a thing.
<J_Arcane>
I also tried a couple SSD->IDE adapters, one m.2, one mSATA, but neither of them have worked in any machine I've tried.
<J_Arcane>
Yeah. You can even get a CF adapter with two SD slots in it, though I'm not sure how those are seen by the system. XD
<soegaard>
Hmm. They are even rather cheap.
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<danderson>
Anyone know of good documentation to learn about writing contracts? The "Building new contracts" section in the guide makes no sense to me, and the reference makes even less sense :(
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<s455wang>
danderson: the "Building new contracts" section is about the internal physical representation of contracts
<danderson>
so, I've read through that. The piece I'm struggling with so far is how to add blame context and other useful information. I'm defining a contract for a somewhat intricate data structure, and would like to add useful signpost in violations.
<danderson>
That "Building new contracts" section was the only one I found that dealt with handling blame
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<greghendershott>
danderson: If you search for papers by Robby Findler about contracts you might find more help.
<greghendershott>
Otherwise I'd suggest asking on the racket-users mailing list.
<greghendershott>
(My own use of contracts has been fairly straightforward, and blame "just works". I haven't tried more "exotic" things.)
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<danderson>
got it, thanks!
<Jeanne-Kamikaze>
Do you have anything resembling docstrings or do you "scribble" your modules?
<soegaard>
There is no builtin support for docstrings.
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<Jeanne-Kamikaze>
I see, thanks.
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