libcxx
freebsd-src
libcxx | freebsd-src | |
---|---|---|
14 | 133 | |
677 | 7,490 | |
- | 0.9% | |
0.0 | 10.0 | |
over 4 years ago | 1 day ago | |
C++ | C | |
Apache License 2.0 | GNU General Public License v3.0 or later |
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?
freebsd-src
- You shouldn't run a BSD on a PC
- Linux Crisis Tools
- What about the vfs.zfs.bclone_enabled sysctl now?
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Personal FreeBSD PKGBASE Update Server
2023-06-26: https://github.com/freebsd/freebsd-src/commit/ee0aa1ce12b3caea34477a31e9d2111a329e33b9 to main (tagged release/14.0.0).
- What version of ZFS at FreeBSD solves the block cloning issue?
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Installing FreeBSD 14 Stable on an T480 Laptop w/ an Encrypted Home Directory
It's not yet in FreeBSD base so if you want to test it you'll have to use the patch from the PR: https://github.com/freebsd/freebsd-src/pull/881
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FreeBSD 14.0 Delivering Great Performance Uplift
Lots of great work by many people. But I bet this guy and his optimizations to the vfs and locking has made a significant impact.
https://github.com/freebsd/freebsd-src/commits?author=mjguzi...
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ZFS 2.2.1: Block Cloning disabled due to data corruption
and then there were deep concerns about the stability of same, so vfs.zfs.bclone_enabled = 0 was left in-place
https://github.com/freebsd/freebsd-src/commit/068913e4ba3dd9...
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FreeBSD 14.0-Release Announcement
Well there are some examples:
https://github.com/freebsd/freebsd-src/tree/main/share/examp...
But yeah that pf.conf could be expanded allot, but there are many source to cobble a conf together. My conf is massive but 99.9% commented out so i have my "template" for nearly everything, from mail to web to blacklistd etc.
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Git cherry-pick and revert use 3-way merge
The BSD version is sort of very recent, for what it's worth -- FreeBSD imported a not fully functional version in 2017 and has seen more work on it in 2022: https://github.com/freebsd/freebsd-src/commits/main/usr.bin/... , but the default version shipped is still GNU diff3: https://man.freebsd.org/cgi/man.cgi?query=diff3&apropos=0&se... .
What are some alternatives?
STL - MSVC's implementation of the C++ Standard Library.
podman - Podman: A tool for managing OCI containers and pods.
kc85.zig - A KC85 emulator written in Zig
musl - unofficial musl mirror git://git.musl-libc.org/musl
pacman.zig - Simple Pacman clone written in Zig.
darwin-xnu - Legacy mirror of Darwin Kernel. Replaced by https://github.com/apple-oss-distributions/xnu
lion - Where Lions Roam: RISC-V on the VELDT
src - Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.
gcc
coreutils - upstream mirror
nft_ptr - C++ `std::unique_ptr` that represents each object as an NFT on the Ethereum blockchain
rss-proxy - RSS-proxy allows you to do create an RSS or ATOM feed of almost any website, just by analyzing just the static HTML structure.