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kingchenc 91f6f67257 Add C# (.NET) binding over the C ABI hub (#226 )

The first language stecker on the C ABI hub: a .NET binding exposing all 514
indicators as idiomatic `IDisposable` classes, generated from `wickra.h`.

## What's here

- **`bindings/csharp/`** — the `Wickra` .NET 8 package. `[LibraryImport]`
  source-generated P/Invoke (`NativeMethods.g.cs`) plus idiomatic wrappers
  (`Indicators.g.cs`), both generated from the committed `bindings/c/include/wickra.h`.
  The binding owns no indicator maths — it only marshals types across the C ABI.
- **Marshalling, verified end-to-end against the native library.** Opaque handles
  cross as `nint` kept alive per call via a `SafeHandle`; `bool` as
  `[MarshalAs(U1)]` (Rust `bool` is one byte); a self-correcting
  `DllImportResolver` validates the loaded library actually exports the Wickra
  ABI. Tests cover one representative per FFI archetype (scalar, candle, pairwise,
  multi-output, bars, profile, values-profile, order-book / array-input) plus
  exact Sma reference values.
- **NuGet packaging** — `dotnet pack` produces `Wickra.<version>.nupkg`; the
  release pipeline stages prebuilt native libraries under `runtimes/<rid>/native/`
  for six target triples (win/linux/osx × x64/arm64).
- **`examples/csharp/`** — nine examples mirroring `examples/c/`: streaming,
  backtest, multi_timeframe, parallel_assets, three strategies, and
  fetch_btcusdt + live_binance.
- **CI** — a `csharp` job on the three OSes builds the C ABI, tests the binding,
  and runs the offline examples. **Release** — a gated `csharp-publish` job packs
  and pushes to NuGet (gated on `NUGET_API_KEY`, independent of the GitHub-release
  job so a C# hiccup never blocks the C/C++ asset release).
- **Docs consistency wave** — README, CONTRIBUTING, CHANGELOG, examples/README,
  the issue / PR templates, `sync-about.yml`, and `.gitattributes`.

The native Python / Node / WASM bindings and the C ABI are untouched; this is
additive. Publishing to NuGet stays gated behind the release tag and the secret.

2026-06-09 14:32:05 +02:00

README.md

Add C# (.NET) binding over the C ABI hub (#226 )

2026-06-09 14:32:05 +02:00

README.md

Documentation

Wickra's full documentation lives at docs.wickra.org.

That includes:

Quickstarts for Rust, Python, Node, WASM, C, and C#.
A per-indicator deep dive for every one of the 514 indicators across the sixteen families (Moving Averages, Momentum Oscillators, Trend & Directional, Price Oscillators, Volatility & Bands, Bands & Channels, Trailing Stops, Volume, Price Statistics, Ehlers / Cycle DSP, Pivots & S/R, DeMark, Ichimoku & Charts, Candlestick Patterns, Market Profile, Risk / Performance) — see the indicators overview.
Reference pages: warmup periods, streaming vs batch, indicator chaining, and the data layer.
Guides: Cookbook, TA-Lib migration, FAQ.

Editing the docs

The documentation site is a separate git repository at https://github.com/wickra-lib/wickra-docs. Open a pull request there to propose changes; the site is built with VitePress and deploys to docs.wickra.org.