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<reynir>
Leonidas: if you broaden it to 'vi's, I imagine you could probably find a proprietary vi
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<xvilka>
Hi! If I use Int32.to_int, and Int64.of_int32 it gives me different results, see size 0x7fffffff9e0068ec size32 0x9e0068ec size64 0xffffffff9e0068ec
<xvilka>
how to prevent this?
<xvilka>
ah, it is because it is signed
<xvilka>
nvm
<xvilka>
why, why there are no unsigned integers in the OCaml without 3rd party libraries!? /o\
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<oni-on-ion>
hmmm
<oni-on-ion>
is it possible to just treat -max_int as 0 ?
<xvilka>
ah, they are in 4.08 already, which I can't still use because some deps didn't migrate yet
<xvilka>
/o\
<xvilka>
life is an awful thing
<oni-on-ion>
awhh. which deps, curious ? ive got 4.08 now finally but have not used it a single time yet. =/
<oni-on-ion>
(indeed life is cruel)
<xvilka>
some ppx parsers, cstruct, asn1-combinators, something else
<xvilka>
I didn't check in depth, just saw a lot of conflicts, decided to wait a bit
<oni-on-ion>
ah. are you checking it every day and see their progress ?
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<dmbaturin>
Speaking of which, what is the incantation for talking dune out of its warning as an error policy?
<hannes>
dmbaturin: "--profile=release"
<dmbaturin>
I see. I would think it's the other way around.
<hannes>
dmbaturin: to me it makes a bit sense, since if you release sth you would not want -werror since a newer compiler may add new warnings.. in development mode, it's best current practises getting educated by the compiler (and fix all the warnings)... but tbh, i also have some projects where i compile only with --profile=release ;)
<dmbaturin>
To me it's a "frustrate the developer" feature, with default settings. :)
<dmbaturin>
If I'm trying to figure where I messed up so that it doesn't typecheck, warnings about unused variables or whatever treated as errors is the last thing I want.
<hannes>
dmbaturin: from "man dune": --profile=VAL (absent DUNE_PROFILE env) -- i.e. you can export DUNE_PROFILE=release in your .bashrc to always use release mode
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<dmbaturin>
The docs appear to say nothing about the release vs dev profile behaviour by the way.
<dmbaturin>
All in all, I'm still trying to find out what's good about dune other than "everyone uses it".
<Fardale>
It is easy to use it
<Fardale>
It generate .merlin file for you
<Fardale>
It can generate .opam file also
<dmbaturin>
Easy to use compared to what? :)
<dmbaturin>
I'm still trying to find out how to use it. I do consider that it's me who's not getting it, and I can't say learning oasis was easy, but it's very far from intuitive.
<dmbaturin>
...ok, I was wrong, the docs do say about profiles, in the FAQ.
<Fardale>
I don't know well the other build system, but for me it was easier to start with dune than with ocamlbuild or oasis
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<Leonidas>
dmbaturin: The appealing thing about dune to me is that it has sensible defaults. Like all the magic it does to wrap libraries, install the right mystery files that the compiler generates, set warnings, build incrementally
<dmbaturin>
Leonidas: I really would like more complete examples though.
<Leonidas>
dmbaturin: to do what?
<Leonidas>
the simplest case is very short :-)
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<dmbaturin>
Leonidas: Stupid question: what exactly I need to do for "dune build something" to work from the top level dir if actual source is in src/ ?
<dmbaturin>
cd src && dune build something.exe works.
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<Leonidas>
dmbaturin: I usually just put a `dune-project` file in root and a `dune` file in `src/` and then `dune build`
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<dmbaturin>
Leonidas: What tells dune to look in src/ ?
<Leonidas>
`(executable (name something) (public_name something))` should be enough
<Leonidas>
dmbaturin: nothing. That's just inherent dune behaviour to traverse all directories
<Leonidas>
dmbaturin: notably, you can even have other dune projects checked out in some folder and it will build these too
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<Leonidas>
which is very useful if you are working on 2 projects at the same time and want to change something in one that requires a change in another then you just dump them together and dune then builds the dependency with you
<dmbaturin>
Leonidas: Oh, public_name seems to have done the trick. Before that it wasn't doing anything.
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<dmbaturin>
Leonidas: Thanks, I think I finally have a working dune setup and some idea how it works.
<dmbaturin>
Time to try opam pinning the result.
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<Leonidas>
dmbaturin: yeah, dune only builds things that are required to install, so unless you ask for a thing (e.g. dune exec <your-binary>) it won't build it to save time.
<Leonidas>
the fastest thing is to avoid doing the thing altogether :)
<dmbaturin>
Leonidas: Until I specified the public name, it wouldn't build it from the top dir even if I did "dune build mybinary.exe".
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<Leonidas>
yeah, because I think you need to say dune build src/yourbinary
<dmbaturin>
Ah, I see.
<Leonidas>
I am fuzzy on the exact details because I never do that really
<dmbaturin>
Maybe I should help improve the docs.
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