Behold the power of meta::substitute

My CppCon 2025 talk, Practical Reflection, is now online. Check it out! Over winter break, I started working on proposal for string interpolation. It was a lot of fun to work through implementing, basically an hour a day during my daughter’s nap time. The design itself is motivated by wanting to have a lot more functionality other than just formatting — and one of the examples in the paper...