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Top 23 C C99 Projects
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I'm trying to optimize my workflow as much as possible, and came across this thing called an ECS. After doing a little bit more digging I found some decent guides on how you would make one, I also found one premade called FLECS. FLECS is nice and all, but I was looking for something more simple that just has the bare bones of what I need and is also configurable. I haven't been able to really find anything like that, so I was wondering if anyone had an example of maybe their way of implementing an ECS. I know how to go about it, but I'm unsure of exactly what the code would look like.
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I think GnuTLS is probably the second most popular TLS library, after openssl.
I'll also mentions s2n and rustls-ffi for completeness as C libraries, though the former isn't widely used, and the latter is very experimental still. https://github.com/aws/s2n-tls and https://github.com/rustls/rustls-ffi respectively.
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Project mention: Confused in terms of where to start with framework/technology etc. Need help picking between learning ShaderToy v/s OpenGL v/s WebGL | /r/GraphicsProgramming | 2023-06-20
If you want to go all the way, https://learnopengl.com/ is a favorite around here. You could build a glTF viewer from scratch starting from that tutorial and https://github.com/jkuhlmann/cgltf and eventually building towards https://google.github.io/filament/Filament.html or whatever wacky artsy direction you like.
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libexpat
:herb: Fast streaming XML parser written in C99 with >90% test coverage; moved from SourceForge to GitHub
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libtcod
A collection of tools and algorithms for developing traditional roguelikes. Such as field-of-view, pathfinding, and a tile-based terminal emulator.
libtcod | GitHub | Issues | Forum | Changelog | Documentation | Template
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Cloak
A mini-preprocessor library to demostrate the recursive capabilites of the preprocessor (by pfultz2)
Where cloak.h is https://github.com/pfultz2/Cloak/blob/master/cloak.h
The above macros are admitttedly very hairy. If C had a better preprocessor, but was otherwise unchanged, they could look a lot nicer.
> I never said such a thing. Would appreciate if you didn't put words in my mouth.
A normal part of dialogue is, "I'm going to repeat your point back to you in my own words, and you can either agree with my restating of it, or point out at which point I've misunderstood you". That's what I was doing. "Would appreciate if you didn't put words in my mouth" is unnecessary hostility.
> In my concrete example, given that FILE and DIR were classified as objects, to which of the so-called objects does F(const char*, FILE, DIR) belong?
Take any language which you agree is "OO". Add one new feature (if it isn't already there): functions/methods which don't belong to any class/object. Now the function you are talking about is possible in that language. Did the language thereby suddenly cease to be OO when we added that feature? Most people would disagree with "Yes". But if "No", what is the actual difference between C and that language?
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Sum types and pattern matching have already been hacked together in a preprocessor macro in C; see https://github.com/Hirrolot/datatype99.
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There are also other approaches. Macro variants making use of `__VA_ARGS__` would be probably the best trade-off. If you want a slightly more ergonomic syntax, something like Metalang99 [1] will help (and the author even wrote a post about this exact subject [2]). Codegen is another option which may work better than other options depending on the situation and exact implementation strategy. And there is always the Reflection TS [3], which may or may not be incorporated to C++26...
[1] https://github.com/Hirrolot/metalang99
[2] https://hirrolot.github.io/posts/pretty-printable-enumeratio...
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Project mention: libpng VS libspng - a user suggested alternative | libhunt.com/r/libpng | 2023-10-30
libspng is already in LibHunt. I'm surprised there is no comparison with libpng.
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wax
A tiny programming language that transpiles to C, C++, Java, TypeScript, Python, C#, Swift, Lua and WebAssembly 🚀
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Project mention: I'm trying to communicate with the iot hub via an edge gateway device | /r/AZURE | 2023-03-29
I'm trying to send data via an edge gateway device. I have set up my edge device which is a linux machine (https://learn.microsoft.com/en-us/azure/iot-edge/how-to-provision-devices-at-scale-linux-symmetric?view=iotedge-1.4&tabs=individual-enrollment%2Cubuntu), now I need to send data from an esp32 device to the iot hub via the edge gateway device. The example code given in the azure iot edge documentation is in C (https://github.com/Azure/azure-iot-sdk-c/blob/main/iothub_client/samples/iotedge_downstream_device_sample/iotedge_downstream_device_sample.c), I need it in the arduino framework for my esp32 device.
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There's examples and on YT theres some videos showing off the lib.
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Project mention: Cparser – A C99 parser (with GNU extensions) (2020) | news.ycombinator.com | 2023-08-15
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Project mention: Visual Introduction to Hash-Array Mapped Tries (HAMTs) | news.ycombinator.com | 2023-08-24
This isn't a very good explanation. The wikipedia article isn't great either. I like this description:
https://github.com/mkirchner/hamt#persistent-hash-array-mapp...
The name does tell you quite a bit about what these are:
* Hash - rather than directly using the keys to navigate the structure, the keys are hashed, and the hashes are used for navigation. This turns potentially long, poorly-distributed keys into short, well-distributed keys. However, that does mean you have to compute a hash on every access, and have to deal with hash collisions. The mkirchner implementation above calls collisions "hash exhaustion", and deals with them using some generational hashing scheme. I think i'd fall back to collision lists until that was conclusively proven to be too slow.
* Trie - the tree is navigated by indexing nodes using chunks of the (hash of the) key, rather than comparing the keys in the node
* Array mapped - sparse nodes are compressed, using a bitmap to indicate which logical slots are occupied, and then only storing those. The bitmaps live in the parent node, rather than the node itself, i think? Presumably helps with fetching.
A HAMT contains a lot of small nodes. If every entry is a bitmap plus a pointer, then it's two words, and if we use five-bit chunks, then each node can be up to 32 entries, but i would imagine the majority are small, so a typical node might be 64 bytes. I worry that doing a malloc for each one would end up with a lot of overhead. Are HAMTs often implemented with some more custom memory management? Can you allocate a big block and then carve it up?
Could you do a slightly relaxed HAMT where nodes are not always fully compact, but sized to the smallest suitable power of two entries? That might let you use some sort of buddy allocation scheme. It would also let you insert and delete without having to reallocate the node. Although i suppose you can already do that by mapping a few empty slots.
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Project mention: A header-only C implementation of C++ <algorithm> | /r/patient_hackernews | 2023-07-04
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CursedGL
Notcurses-based software rasterizer inspired by OpenGL 1.X that renders directly to the terminal
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
The latest post mention was on 2023-11-05.
C C99 related posts
- What's your way to create an ECS?
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libpng VS libspng - a user suggested alternative
2 projects | 30 Oct 2023
- Simple Open-Source Java Virtual Machine in C
- Visual Introduction to Hash-Array Mapped Tries (HAMTs)
- A header-only C implementation of C++ <algorithm>
- A header-only C implementation of C++ <algorithm>
- A header-only C implementation of C++ <algorithm>
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Index
What are some of the best open-source C99 projects in C? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | flecs | 5,008 |
| 2 | s2n | 4,326 |
| 3 | cgltf | 1,269 |
| 4 | gunslinger | 1,073 |
| 5 | libexpat | 924 |
| 6 | libtcod | 858 |
| 7 | Cloak | 856 |
| 8 | datatype99 | 734 |
| 9 | metalang99 | 701 |
| 10 | libspng | 646 |
| 11 | wax | 630 |
| 12 | voxelizer | 592 |
| 13 | halfix | 591 |
| 14 | azure-iot-sdk-c | 558 |
| 15 | exengine | 518 |
| 16 | FastLZ | 359 |
| 17 | nbnet | 314 |
| 18 | cparser | 306 |
| 19 | interface99 | 249 |
| 20 | hamt | 247 |
| 21 | jvm | 229 |
| 22 | array-algorithms | 209 |
| 23 | CursedGL | 169 |
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