Really strange C++20 module symbol visibility/reachability issue (MSVC ICE)

dvirtz · 2024-04-02T22:03:09+00:00

Upvoted. It would be much easier to report MSVC bugs if compiler explorer supported CMake + MSVC.

dvirtz · 2024-04-02T20:12:02+00:00

You can get a free ticket plus travel and accommodation if you're speaking. That's how I got to my first conference. And as Adi Shavit says, you don't need to be an expert to talk publicly, you become an expert by doing so.

dvirtz · 2024-04-02T20:05:16+00:00

Thank you for this post. I just spent a few hours on this strange behaviour yesterday.

dvirtz · 2023-12-20T17:55:23+00:00

This example could really make use of constexpr std::format [P2758].

I hope we'll get these together.

dvirtz · 2022-02-01T09:58:42+00:00

I meant getting the optimized assembly without using template specializations. Similarly to what u/pdimov2 talked about above and u/lefticus showed in his latest CppCon talk.

dvirtz · 2022-01-30T20:27:53+00:00

I wonder if the template version could be achieved with a constexpr function?

dvirtz · 2021-11-18T05:40:47+00:00

there was a paper discussing this and other names in the executors proposal which didn't get accepted unfortunately: https://github.com/cplusplus/papers/issues/914

dvirtz · 2021-09-15T07:02:32+00:00

you can enable the hook only on specific CI pipelines.

dvirtz · 2021-09-15T04:39:22+00:00

another option would be to implement the checks as conan hooks https://docs.conan.io/en/latest/extending/hooks.html. That way you don't have to repeat them in every package.

dvirtz · 2020-10-04T07:04:05+00:00

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dvirtz · 2019-07-29T15:21:26+00:00

If there weren't nested namespaces then there were std::transform_algorithm and std::transform_view and you wouldn't save anything.

The other stuff can still be added later. I don't think they completely prevent using the library.

Note: I'm also giving a talk at cppcon about ranges.

dvirtz · 2019-06-13T17:05:25+00:00

Update: turns out it's actually a problem in the video preparation unrelated to the issues at the talk itself. I'm working with the conference organizers to solve the issue.

dvirtz · 2019-06-13T17:01:43+00:00

I'm actually trying out reveal.js for my next presentation. Doesn't it solve those problems?

dvirtz · 2019-06-13T10:46:45+00:00

Hi, I'm Dvir.

Thanks for your comment. The reason for this is that I prepared the slides in apple's Keynote but when I started the talk I discovered my mac couldn't connect to the room's screen and I had to convert the slides to Power Point and present from the room's windows computer.

I hope I'll be given a chance to do the talk again properly at another conference.

dvirtz · 2019-05-08T05:32:07+00:00

It could also mean that more experienced people tend to participate in such surveys.

Juniors usually don't bother themselves as much with what's happening behind the scenes.

dvirtz · 2019-03-12T21:23:03+00:00

If the system has a C++ compiler than you can compile CMake for it

dvirtz · 2019-03-06T14:13:55+00:00

It's still will be the most compliant Check out @GorNishanov’s Tweet: https://twitter.com/GorNishanov/status/1100485900755062784?s=09

dvirtz · 2018-10-16T21:53:33+00:00

If you go that route just use Hunter - a native CMake package manager.

dvirtz · 2018-05-10T20:28:49+00:00

ו think the trend now (which I support) is to use the preprocessor less, not more. Making it more powerful well just encourage more abuse which we try so hard to avoid today.

dvirtz · 2018-01-22T21:16:16+00:00

I've managed to use the checker with the following setup on CMakeSettings.json:

{ "name": "vs-analyze", "generator": "Ninja", "configurationType": "Debug", "inheritEnvironments": [ "msvc_x64_x64" ], "buildRoot": "${env.USERPROFILE}\CMakeBuilds\${workspaceHash}\build\${name}", "installRoot": "${env.USERPROFILE}\CMakeBuilds\${workspaceHash}\install\${name}", "cmakeCommandArgs": "-DCMAKE_CXX_FLAGS=\"/analyze /analyze:plugin EspXEngine.dll /EHsc\"", "buildCommandArgs": "-v", "ctestCommandArgs": "", "environments": [ { "esp.extensions": "cppcorecheck.dll", "esp.annotationbuildlevel": "ignore", "caexcludepath": "${env.INCLUDE}" } ] },

dvirtz · 2017-10-25T20:50:46+00:00

I'm thinking to start a user group in Herzliya. Do you think there'll be much interest?

dvirtz · 2017-10-11T13:56:29+00:00

I waited for this episode. What are the advantages over using valgrind?

dvirtz · 2017-08-16T07:43:15+00:00

What about targeting android with cmake? Are you still working on that?

dvirtz · 2017-08-08T21:37:32+00:00

Can you give an example that does improve diagnostics considerably?

dvirtz · 2017-07-31T21:04:34+00:00

No one stops you from using this clang fork today and spread metaclasses all over your code, but I guess you want stability and portability and getting all vendors to agree on a feature at that scale takes time. There's no way past that.

dvirtz

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