Two weeks ago I asked you for help: I wanted to build a wall of examples of std::optional. I’m very grateful that a lot of you responded and I could move forward with the plan! You’re amazing! Let’s dive in the examples my readers have sent me! A Reminder To remind, I asked for some real-life examples of std::optional.

Show me your code! I’d like to run a little experiment. Let’s build a wall of examples of std::optional! Intro In the last three articles of my C++17 STL series I’ve been discussing how to use std::optional. I can talk and talk… or write and write… but I’m wondering how do you use this wrapper type?

Let’s put C++17 in practice! One of the good ways to do it is to take part in a coding challenge. So together with Jonathan Boccara from Fluent C++ we invite you to participate in “The Expressive C++17 coding challenge”. The Expressive C++17 coding challenge Jonathan made a few contests on his blog (for example this one), and I thought it might be fun to do something similar for C++17.