https://mattbolitho.github.io/tags/stl/Recent content in Stl on Matt BolithoHugo -- gohugo.ioen-GBMatt BolithoFri, 18 Aug 2023 18:00:00 +0000https://mattbolitho.github.io/posts/efficient-configurable-lambdas-with-constexpr-and-optional/Fri, 18 Aug 2023 18:00:00 +0000https://mattbolitho.github.io/posts/efficient-configurable-lambdas-with-constexpr-and-optional/Introduction I was hacking around with a personal project and bumped into a cool thing with constexpr, std::optional, and lambdas. Maybe it’s a well known interaction, but I thought I’d write a post either way! The project in question was a library which contains an algorithm that can be parameterised by the user through options. These options are just struct instances which are pretty trivial, plain old data, and compile-time constructable.