C++Now 2019

This that talk is about actual constants in C++, not the more abstract “constants” you might experience while coding C++, like that euphoric sense that you’re making the world a better place. The notion of “constant expressions” underwent a very fundamental change in C++11, and has evolved with every iteration of the standard since then. This presentation will look at some of the major ideas underpinning “constants” in modern C++, including why things are the way they are and what new capabilities C++20 brings.