C++2019 Page
Use -std=c++20 (GCC/Clang) or /std:c++20 (MSVC).
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. c++2019
This version significantly improved CMake integration , allowing developers to build Linux applications directly from Windows without leaving the IDE. Use -std=c++20 (GCC/Clang) or /std:c++20 (MSVC)
C++17 made everyday C++ cleaner, safer, and more expressive. and more expressive. template<
template<Numeric T> T add(T a, T b) return a + b;
No more messy iterator pairs; lazy evaluation and chaining.
C++17 bridged the gap between “modern C++” (C++11/14) and the ambitious goals of C++20. It focused on usability, performance, and reducing boilerplate.