355.md

Info

• Did you know that C++20 added constinit keyword?

  • https://wg21.link/P1143

Example

constinit static auto i = 42;

https://godbolt.org/z/8xWqf9vE8

Puzzle

• Can you implement example showing constinit with thread_local storage?

extern constinit thread_local int var;

https://godbolt.org/z/zznznchEE

Solutions

extern constinit thread_local int var;
auto fn() { return var; }

https://godbolt.org/z/rshcj6Tq5