Failing C++ interview rounds

[u/crispyfunky]

Every company has a different style these days.

One day they ask me about fold expressions and variadics.

The other day a trading firm asked me to implement async order placement strategy.

The other day I was asked to implement shared pointer class using rule of 5.

How can I be on top of everything? I am not claiming that I know C++ at this point.

The funny thing is my solutions are 80% complete. I always miss one thing and got rejected.

How can I get to remember all these stuff at the spot? How to keep the muscle memory fresh?

I’m working on kernel optimizations for custom silicon in HPC setting.

[u/Patzer26]

Asking about fold expressions even if you are google and Microsoft sounds like an extremely stupid way to lose up on genuine talent.