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Dev tools · alternatives · 2026

24 alternatives to A C++11 Hierarchical State Machine Library

A C++11 Hierarchical State Machine Library. Contribute to akiscode/roost_hsm development by creating an account on GitHub.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A C++11 Hierarchical State Machine Library launched in 2023; newer entries below may have overtaken it.

  1. 1

    An OpenGL RTS game engine written in C. Contribute to eduard-permyakov/permafrost-engine development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  2. 2

    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…

    2025 · github.com · its alternatives →

  3. 3

    HVM1 (2022): a massively parallel, optimal functional runtime in Rust - HigherOrderCO/HVM1

    2022 · github.com · its alternatives →

  4. 4

    "interesting" VM in C. Let's see how this goes. Contribute to tekknolagi/carp development by creating an account on GitHub.

    2014 · github.com · its alternatives →

  5. 5

    A C++ HTML template engine that uses compile time HTML parsing - rep-movsd/see-phit

    2017 · github.com · its alternatives →

  6. 6

    Hi HN, Over the past few months, I've been building `dsc`, a tensor library from scratch in C++/CUDA. My main focus has been on getting the basics right, prioritizing a clean API, simplicity, and clear observability for running small LLMs locally. The key features are: - C++ core with CUDA support written from scratch. - A familiar, PyTorch-like Python API. - Runs real models: it's complete enough to load a model like Qwen from HuggingFace and run inference on both CUDA and CPU with a single line change[1]. - Simple, built-in observability for both Python and C++. Next on the roadmap is…

    2025 · github.com · its alternatives →

  7. 7

    I've come to prefer modeling state machines with nested states, but implementing them by hand requires a large amount of error-prone boilerplate that obscures the important logic of the state machine. I found that the existing offerings in the Rust ecosystem - while inspiring - lacked a number of features that I was looking for, so I spent the last few months building moku. Feedback is welcome!

    2025 · docs.rs · its alternatives →

  8. 8

    hspp: An experimental library to bring Haskell Style Programming to C++. - BowenFu/hspp

    2022 · github.com · its alternatives →

  9. 9

    Hello Hacker News. I’m Martin, a graduate student from Prague, and I’ve been working on Coros, a C++ library for task-based parallelism. After spending some time with OpenMP and oneTBB, I wanted to try building a library using modern features from the C++ standard library. I’ve used coroutines for task encapsulation and C++23 expected for exception handling, while trying to maintain good performance. Additionally, I’ve implemented monadic-like behavior to allow easy chaining of tasks, similar to the monadic operations in std::expected. You can check out the project here:…

    2024 · github.com · its alternatives →

  10. 10

    Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod

    2014 · github.com · its alternatives →

  11. 11

    Statechart library and editor. Contribute to jonasblixt/ufsm development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  12. 12

    Non-preemptive Thread Hierarchy Manager. Contribute to gueststar/nthm development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  13. 13

    Morning HN. Random number generation feels is a somewhat underrepresented topic in the C++ realm. There is a lot of questionable info about it found online and even the standard library is quite behind the times in terms of it's algorithms. It suffers from trying to accommodate sometimes impractical standard requirements and has several ways of getting significantly bad statistical results. This leaves a lot easily achievable performance & quality on the table. So, being a mathematician who mostly works with stochastic models and wants these models to run fast and well, I embarked on a…

    2025 · github.com · its alternatives →

  14. 14

    simple virtual machine and assembler. Contribute to ronsoros/rvm development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  15. 15

    Western music theory library in C. Contribute to thelowsunoverthemoon/mahler.c development by creating an account on GitHub.

    Feb 2026 · github.com · its alternatives →

  16. 16

    An approach for runtime detection inside a constexpr function - SaadAhmad/in_constexpr

    2017 · github.com · its alternatives →

  17. 17

    C++14: bringing in those expressions that you wish you had, Lazily evaluated, compossible generators, maps, filters, ranges and more... - GitHub - SaadAttieh/lazyCode: C++14: bringing in those expressions that you wish you had, Lazily evaluated, compossible generators, maps, filters, ranges and more

    2018 · github.com · its alternatives →

  18. 18

    Yes, this includes the MBR and partition boot sector. The partition table is modeled as a class hierarchy. Second stage loads a kernel from a FAT32 file. I'm normally a C programmer, but for a work project, I recently revisited C++, a language that I had an on-again-off-again relationship over the years. I did this as a fun training exercise on the side to get familiar with the language again, but obsessed a bit and kind of overshot the target. I thought the result might be of interest to someone.

    2023 · github.com · its alternatives →

  19. 19

    C++11 Lightweight Redis client: async, thread-safe, no dependency, pipelining, multi-platform - NO LONGER MAINTAINED - Please check https://github.com/cpp-redis/cpp_redis - Cylix/cpp_redis

    2017 · github.com · its alternatives →

  20. 20

    This project presents a new data structure for storing ordered integer maps. The proposed data structure is a compressive, cache-friendly, radix tree that has performance comparable to an unordered map (`std::unordered_map`) and is an order of magnitude faster than an ordered map (`std::map`).

    2024 · github.com · its alternatives →

  21. 21

    A lightweight single-header pattern-matching library for C++17 with macro-free APIs. Try it at https://godbolt.org/z/8YMr8Kz8j

    2022 · github.com · its alternatives →

  22. 22

    A finite-state machine library for the Go programming language - calebwin/go-sm

    2018 · github.com · its alternatives →

  23. 23

    A minimal stack-based VM. Contribute to codr7/liblg development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  24. 24

    Contribute to mehrdadn/libvital development by creating an account on GitHub.

    2022 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →