I think it's fair to say threading it's an apples to oranges comparison because there isn't a pattern or a standard library in C for threading. So if you need jump into a highly multi threaded or even async, C probably isn't it. Not unless you want to spend a bunch of time implementing the patterns yourself. 

I think as a fun analog, in noscrypt I implemented the concept of a Span taken from C# to help me more safely work with buffers, except with macros and inline functions to make it nearly invisible when compiled. 

> i'd also suggest trying C because it's pretty good for writing simple mathematical algorithms with
Completely agree on this!

>but the implicit types get messy
Also yes, some libraries work well with an int being 8,16,32,or even 64 bits wide without your knowledge. I usually use explicit types but many libraries don't because it can often be easier to trust the compiler to manage sizing correctly for you. That takes more brain power than I wanted to dedicate to noscrypt right now, but I may switch back to implicit types for compat reasons.