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<jpx>
What do all of these [m] things mean
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<lyxia>
They're matrix.org users
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<discord5>
<mars0i> @apache2 Not sure if this is relevant, but you know you can convert between layouts with Genarray.change_layout, right? My understanding is that this is fast--it doesn't copy the data.
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<apache2>
mars0i sorry, missed the highlight due to the @-prefix. I have seen change_layout, but I am not sure how it will help me. It appears to turn my C_layout view into a Fortran_layout view, but there is still no API that lets me fix "rightmost" coordinates.
<apache2>
@mars0i I can fix the leftmost coordinates using slice_left for C_layout and slice_right for Fortran_layout. it's my impression those two functions are identical, still only allowing fixing the leftmost coordinate?
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<xvilka_>
hi!
<xvilka_>
Is anyone using Vim for writing OCaml code? I wonder if I can modify syntax highlighting rules/regexps to have a separate colors also for function definitions?
<xvilka_>
I mean not just "let <func_name> arg1 arg2 =" but also all the calls of it (or partial applications, doesn't matter)
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<discord5>
<Christophe> I have never tweaked vim highlighting but I think it sounds possible, highlighting possibilities seem very flexible
<discord5>
<Christophe> (though I must confess I do not understand the second part of your question 😊)
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<apache2>
does someone have an example of c stubs returning `result` values handy?
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<discord5>
<mars0i> @apache2 I see--I didn't realize that each slice function only worked on one layout.
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<discord5>
<mars0i> If you're doing this sort of thing a lot, it's possible that it could be useful to use Owl. Owl NDarray is actually a c_layout Bigaaray, and it has some flexible slicing functions. http://ocaml.xyz/chapter/slicing.html
<apache2>
mars0i: does OWL operate on memory buffers like Bigarray? ie can I use the values from C code?
<apache2>
fuck me I hate jbuilder :(
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<apache2>
I always end up with PATH="override/:$PATH" where override/ contains gcc,cc,ld etc to be able to filter out arguments that jbuilder thinks is a good idea to add
<apache2>
fortunately it doesn't really filter special chars, so often you can get away with injection '#' or '--'
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<discord5>
<mars0i> @apache2 I'm pretty sure the answer is yes--Owl does a lot of stuff in C libs and Owl's own custom code--but I am not sure whether you could get in trouble if you don't know what Owl's code is doing behind the scenes. I don't know much about that aspect of Owl. If you don't mind, I'll mention your question into the Owl discord channel, and maybe someone who knows more can answer on IRC.
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<apache2>
I'll check the code and see if I can use that instead :)
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<discord5>
<Bluddy> xvilka_: Not sure exactly what you mean, but I think you mean create a color for a specific function and then for its application so you can easily see where a particular function is applied. The closest thing I can think of is 'rainbow parentheses' -- you can look that plugin up. You're going to need some language to do the highlighting there -- the regexp syntax highlighting isn't going to be powerful enough.
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<Leonidas>
is there something like BatEnum in Core?
<Leonidas>
The only similar thing I found is Async Pipe, but I don't actually want this to be concurrent, just lazy.
<companion_cube>
there's Core.Sequence
<Leonidas>
companion_cube: Thanks!
<companion_cube>
that module still makes me sad
<companion_cube>
fragmentation that will never mend
<companion_cube>
(unless core/base becomes the absolute standard)
<Leonidas>
We standardized on @@ and |> already!
<Leonidas>
and a result type
<Leonidas>
and looks like a build system
<companion_cube>
there's a new iterator type in the stdlib in 4.07
<companion_cube>
but I doubt janestreet will care, given the long discussions on the iterator's PR's thread
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<Leonidas>
*sigh*
<companion_cube>
it's an interesting read though :-)
<Drup>
not really
<Drup>
It's mostly people disagreeing on what iterators are for to begin with, and each looking at their own corners
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<discord5>
<n4323> @companion_cube I recently discovered your oseq library. could you briefly elaborate how that relates to sequence and gen and the new stdlib type?
<Leonidas>
the opam Docker images are now so out of date, security.debian.org removed the necessary packages :(
<companion_cube>
n423: oseq is designed to be compatile with the stdlib's type
<companion_cube>
Drup: well JST agrees with me on the usage part, I think
<companion_cube>
it's more that they haven't even stabilized internally on the perfect representation, and feel no need to follow any external standard
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<Leonidas>
Converting a BatEnum into a Core.Sequence proved to be quite easy to do although Core.Sequence.Generator is sort of strange because it does not provide the usual Let_syntax module.
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<laurus>
Is Ocaml 4.0.6 planned to be included in Debian Unstable (Sid)?
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<deba5e12>
hey, is there a way to set the default printing base for numbers in utop to hex?
<deba5e12>
and to force utop to always print the value of the last evaluated expression? it seems to be the default behaviour, but including certain ppx packages seem to disable it
<octachron>
deba5e12, for printing integer in hexadecimal: 'let print_hex ppf = Format.fprintf "%#X";; #install_printer print_hex` should do the trick
<deba5e12>
thanks!
<octachron>
(you can also try '%X'/'%x'/'%#x' depending on the exact format that you want)
<octachron>
Format.fprintf ppf "%#X" *
<deba5e12>
gotcha. thanks for that.
<deba5e12>
any idea why passing something like `-ppx ppx-bap` to utop suppresses printing of unbound values?
<deba5e12>
not sure if it's bap-specific or not.
<deba5e12>
but with that flag passed, entering, say, `2+2;;` at the prompt won't display a value, unless i put `let x = 2+2;;`
<deba5e12>
it's a tiny thing, but has gotten a little bit irritating
<octachron>
deba5e12, does the expression get evaluated, e.g. does 'print_newline "test";;' work as expected?
<deba5e12>
nope.
<deba5e12>
not unless i bind the return value to something
<octachron>
In this case it might be that ppx-bap itself is discarding toplevel expression
<deba5e12>
ok, i suppose in that case there's not much i can do about it.
<deba5e12>
(without delving into ppx-bap, which i think i'll go do now)
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