C++2019 __hot__ -

“C++20 feels like a new language – but still C++.” – Bjarne Stroustrup

"C++2019" wasn't a standard—it was the exciting transition period where modern C++ finally started to take shape. c++2019

for (int f : fibonacci() | rv::take(10)) std::cout << f << ' '; “C++20 feels like a new language – but still C++

If you’ve heard “C++2019,” it likely refers to the work leading up to (finalized in 2020) or the post-C++17 era of feature development. C++17 was completed in 2017; C++20 followed as one of the largest updates in the language’s history. If you’ve heard “C++2019

So, what was happening in 2019?

co_await , co_yield , co_return enable efficient async I/O, generators, and lazy sequences.