modernclearning's comments

Absolutely unnecessary. Modern C++ borrowed some paradigms of functional programming, but learning a functional language isn’t remotely close to being a prerequisite to learning those features.

In terms of jobs, C++ is used heavily, if not the majority of the time in: AAA game development, high performance computing, high frequency trading and quantitative finance, embedded software, image processing and computer vision... honestly, I focused on C++ out of school years ago BECAUSE of how interesting many of the jobs are. They’re also generally more stable and thus competitive over time compared to e.g. web dev, enterprise software, and so on, because the domain knowledge required means you’re a lot more valuable than knowing X and Y design pattern or framework Z.

“C Interfaces and Implementations” by David R. Hanson is what I used when I had a similar concern a few years ago. It’s from 1997, so no, it doesn’t cover the newest C standards, which I understand is your main concern. Though C11 didn’t add too much semantically, for what it’s worth. That said, the book provides great design patterns for writing C in an object-oriented sort of manner, more idiomatic to OOP.

Peter Hintjens was writing “Scalable C” a couple years ago, but recently died, and never got very far unfortunately.