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48 points zigrazor | 1 comments | 07 Jul 25 06:06 UTC | HN request time: 0.217s | source

Hi HN!

I've built [CXXStateTree](https://github.com/ZigRazor/CXXStateTree), a modern C++ header-only library to create hierarchical state machines with clean, intuitive APIs.

It supports: - Deeply nested states - Entry/exit handlers - State transitions with guards and actions - Asynchronous transitions with `co_await` (C++20 coroutines) - Optional runtime type identification for flexibility

It's ideal for complex control logic, embedded systems, games, robotics, and anywhere you'd use a finite state machine.

I’d love feedback, use cases, or contributions from the community!

Repo: https://github.com/ZigRazor/CXXStateTree

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dgan ◴[10 Jul 25 18:22 UTC] No.44523973[source]▶

>>44487221 (OP) #

i am by no means a C++ expert, but isn't "pragma once" frowned upon?

replies(5): >>44524039 #>>44526928 #>>44526935 #>>44528279 #>>44529097 #

1. sam_bishop ◴[10 Jul 25 23:43 UTC] No.44526935[source]▶

>>44523973 #

I've avoided #pragma once because of reports that it slows down gcc/g++: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58770

But given that I haven't seen any mention of that issue in other comments, I wonder if it really is an issue.

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