[vocram]

Becoming proficient in a language usually involves: - writing code with it long enough, - collaborate in a project based on it, - reading code other people wrote, - keep yourself up to date by following the language evolution, - go more in depth in language internals, compilers, etc...

I wrote C for 10+ years (mostly bare metal FW), yet I am still amazed of how little I know about it. Recently for example I learnt of all the things the dynamic linker does in Linux, how symbols memory addresses are resolved at runtime using PLT, ....

The good point about C is that it can be used for very different kind of projects, so the choices are a lot.

[stiray]

This was a pure satisfaction when I have first seen it :)

https://en.wikipedia.org/wiki/Duff%27s_device

[saagarjha]

(Please don't write code like this anymore)

[stiray]

Sure, duff device is obsolete due to cpu zero overhead looping but it is still nice to see, mind boggling piece of code. :)

[mrr54]

(Please do write code like this anymore.)