libcxx
otp
libcxx | otp | |
---|---|---|
14 | 23 | |
677 | 11,049 | |
- | 0.3% | |
0.0 | 10.0 | |
over 4 years ago | 1 day ago | |
C++ | Erlang | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
libcxx
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Quants use Rust; Devs use C++ - Hey, it's a compromise!
If you are comparing hoops that library authors need to jump through in both languages, you can easily make the real-world comparison in the other direction, by comparing Rust's Option with C++'s std::optional (an exercise left for the reader): Rust std: https://github.com/rust-lang/rust/blob/master/library/core/src/option.rs libcxx: https://github.com/llvm-mirror/libcxx/blob/master/include/optional
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My favorite prime number generator
My favorite prime number generator is the undocumented __next_prime():
https://github.com/llvm-mirror/libcxx/blob/78d6a7767ed57b501...
There is no good reason to use this one except in a code golf environment that includes all headers by default, which is where I learned about it.
- Please can someone tell me where I can find the content of the STL
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"My Reaction to Dr. Stroustrup’s Recent Memory Safety Comments"
I once read a Strousroup quote amounting to "If you understand std::vector, then you understand C++". I thought surely he couldn't have meant the interface but the implentation, googled that llvm's implementation is considered nice and clean, had a look, and noped straight out of there.
- pmr implementation in c++14
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In Defense of Linked Lists
C++'s STL linked list for comparison (libcxx).
https://github.com/llvm-mirror/libcxx/blob/master/include/li...
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RFC: C++ Buffer Hardening
> For example, accessing a std::span or a std::vector outside of its bounds would abort the program, and so would accessing an empty std::optional.
I don't really understand the difference with libc++, libstdc++ and msvc stl's respective debug modes, they already do exactly these checks :
- https://github.com/llvm-mirror/libcxx/blob/78d6a7767ed57b501...
- https://github.com/gcc-mirror/gcc/blob/966010b2eb4a4c52f139b...
- Why is std::array implemented as a struct instead of a class?
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C++ Concurrency Model on x86 for Dummies
I mean it's not hard to read the source for your platform. On Linux/x86_64/libc++ it's roughly:
- https://github.com/llvm-mirror/libcxx/blob/master/include/__...
- https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=nptl/...
I don't particularly care to comb through it to see if anything has changed, but historically it was a a little spin-CAS to make the non-contended path fast and then dropping into a https://en.wikipedia.org/wiki/Futex, which is about as good as it gets for staying mostly in userspace but still letting it be scheduler aware so you're not burning up a core busy-polling, which is what often happens when people try to roll their own shit.
Google wants a bit more latitude on the heuristics and degrees of freedom around read/write ownership, so they did it like this: https://github.com/abseil/abseil-cpp/blob/master/absl/synchr... which is quite a bit better commented/legible.
If anyone reading this can do better than the `abseil-cpp` folks, not only would Google take their PR, they'd probably offer them a job.
- Intrusive List Advantages?
otp
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Install mutiple Erlang and Elixir with vfox
Theoretically, you could install any version that appears in https://github.com/erlang/otp/releases. Since it is compiled and installed from source, the installation process will take some time. When you see the following message, the installation is complete.
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Perfect Elixir: Environment Setup
I’m on MacOS and erlang.org, elixir-lang.org, and postgresql.org all suggest installation via Homebrew, which is a very popular package manager for MacOS.
- Scheduling Internals
- Epoll: The API that powers the modern internet (2022)
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Elixir v1.15 released
You can read my original report and subsequent PRs in Erlang/OTP here: https://github.com/erlang/otp/issues/5811
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Open Sourcing Erlfuzz
- a massive speedup of a common static analyzer for Erlang (https://github.com/erlang/otp/pull/5997)
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Why are there so many languages?
Funny that you should mention Erlang. Looking at the Github for Erlang, it appears that the source for Erlang is 16.8% written in C. I would bet these are not the least important bits of the whole thing. So, Erlang depends on C.
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Erlang: More Optimizations in the Compiler and JIT
It looks more like some of the JIT improvements made it profitable to manually unroll some loops in the base64 module: https://github.com/erlang/otp/commit/a03cf1601605dee767cd9d5...
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Mixing sync and async views in the same application
https://github.com/erlang/otp as far as I know. It's somewhat confusing and I honestly couldn't say exactly where the BEAM VM or OTP or ERTS (Erlang Runtime System) start and end. I've never dug into it. I just install Elixir and sometimes Erlang through the ASDF tool, which does all the compiling for me.
- When people send a https request to my custom web server, it crashes the entire system. How do I fortify my system not to accept em?
What are some alternatives?
STL - MSVC's implementation of the C++ Standard Library.
protoactor-go - Proto Actor - Ultra fast distributed actors for Go, C# and Java/Kotlin
kc85.zig - A KC85 emulator written in Zig
Elixir - Elixir is a dynamic, functional language for building scalable and maintainable applications
pacman.zig - Simple Pacman clone written in Zig.
calypso - Calypso is a mostly imperative language with some functional influences that is focused on flexibility and simplicity.
lion - Where Lions Roam: RISC-V on the VELDT
scryer-prolog - A modern Prolog implementation written mostly in Rust.
gcc
caramel - :candy: a functional language for building type-safe, scalable, and maintainable applications
nft_ptr - C++ `std::unique_ptr` that represents each object as an NFT on the Ethereum blockchain
cdk-emqx-cluster