Many years ago as an undergrad student I applied for an internship. They asked if I knew "C++", and having studied it and programmed in the only 'C++' I knew I

Many years ago as an undergrad student I applied for an internship. They asked if I knew "C++", and having studied it and programmed in the only 'C++' I knew I said yes. After arriving at the internship they showed me the codebase and it a lot of it looked very foreign to me. Turns out they were using Symbian C++. I had quite a few weeks of extended evenings and few all night coding sessions to try to keep up and get basic things done. Luckily, I somehow managed to deliver on my ask, but lesson learnt!