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Life & fun · alternatives · 2026

CA

Cat is a C++14 functional library that enables functional programming in C++ through utility functions and type classes inspired by category theory and Haskell. It provides developers working with C++14 the tools to… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Cat, a C++14 functional library launched in 2015; newer entries below may have overtaken it.

  1. 1

    Python library for creating data pipelines with chain functional programming - EntilZha/PyFunctional

    2017 · github.com · its alternatives →

  2. 2

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

    2022 · github.com · its alternatives →

  3. 3

    A functional programming and concurrency library for Python: algebraic abstractions (Semigroups, Monoids, Functors, Applicatives, Monads), immutable data types, and message-passing concurrency, all designed as composable, type-safe values. - kamalfarahani/katharos

    Aug 2026 · github.com · its alternatives →

  4. 4

    Functional programming for modern Fortran. Contribute to wavebitscientific/functional-fortran development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  5. 5

    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 →

  6. 6

    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 →

  7. 7GI

    Hi all! I'm going into my freshman year, and figured that the best way to prepare for the intro to programming Racket course would be to implement my own garbage-collected, dynamically typed, functional programming language in C ;) Anyways... here's the repo: https://github.com/liam-ilan/crumb I started learning C over the summer, so I still have a whole lot to learn... Any feedback would be greatly appreciated! :D

    2023 · its alternatives →

  8. 8

    Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean

    2021 · github.com · its alternatives →

  9. 9

    A tiny, embeddable language implemented in ANSI C. Contribute to rxi/fe development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  10. 10

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

    2017 · github.com · its alternatives →

  11. 11

    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 →

  12. 12IB

    This weekend I created stacklib.h - a single-header library that brings Forth-style stack operations to C. It implements a basic interpreter with: - Stack operations (push/pop/dup/swap/over/drop) - Arithmetic (+, -, *, /) - Output (., emit, cr) - Stack inspection (.s, depth) Example usage: Stack s; stack_init(&s); dict_init(); exec(&s, "10 20 + ."); // Prints "30" exec(&s, "1 2 3 4 .s"); // Shows stack contents The library is self-contained, requires no dependencies, and handles basic error checking. It was inspired by wanting to understand…

    2025 · its alternatives →

  13. 13

    A fast functional language based on two level type theory - ehatti/peridot

    2022 · github.com · its alternatives →

  14. 14

    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 →

  15. 15

    A graph-based functional API for building complex scikit-learn pipelines. - alegonz/baikal

    2020 · github.com · its alternatives →

  16. 16

    I love C and C++, but setting up projects can sometimes be a pain. Every time I wanted to start something new I'd spend the first hour writing CMakeLists.txt, figuring out find_package, copying boilerplate from my last project, and googling why my library isn't linking. By the time the project was actually set up I'd lost all momentum. So, I built Craft - a lightweight build and workflow tool for C and C++. Instead of writing CMake, your project configuration goes in a simple craft.toml: [project] name = "my_app" version = "0.1.0" language = "c" c_standard = 99 [build] type = "executable"…

    Apr 2026 · github.com · its alternatives →

  17. 17

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

    2014 · github.com · its alternatives →

  18. 18
    Cinder▲122

    Free and open source library for creative coding in C++

    2017 · libcinder.org · its alternatives →

  19. 19

    A high performance, middleware oriented C++14 http web framework please use matt-42/lithium instead - matt-42/silicon

    2015 · github.com · its alternatives →

  20. 20

    Hi HN! Korean high school senior here, about to start CS in college. I built a browser engine from scratch in C++ to understand how browsers work. First time using C++, 8 weeks of development, lots of debugging—but it works! Features: - HTML parsing with error correction - CSS cascade and inheritance - Block/inline layout engine - Async image loading + caching - Link navigation + history Hardest parts: - String parsing(html, css) - Rendering - Image Caching & Layout Reflowing What I learned (beyond code): - Systematic debugging is crucial - Ship with known bugs rather than chase…

    Jan 2026 · github.com · its alternatives →

  21. 21

    Brisk is an open-source C++ GUI framework with a declarative approach, offering powerful data bindings, GPU-accelerated graphics, and dynamic widget management. It supports macOS, Linux, Windows, and simplifies UI creation with modern paradigms and CSS-like layouts. Initially developed for a graphics-intensive project with a complex and dynamic GUI, the framework is currently under active development.

    2024 · github.com · its alternatives →

  22. 22

    Codebrowser homepage

    2016 · code.woboq.org · its alternatives →

  23. 23

    Functional programming without the hassle.

    2015 · haskellformac.com · its alternatives →

  24. 24

    A minimal viable programming language on top of liblgpp - codr7/alang

    2021 · 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 →