diffsol-c

A runtime-typed wrapper and C API around diffsol.

Where the diffsol crate selects its scalar, matrix, and solver types at compile time via generics, diffsol-c exposes them as runtime choices behind a C-compatible interface, making diffsol usable from C and other languages via FFI.

The crate is built as both a C dynamic library and a Rust library (crate-type = ["cdylib", "rlib"]).

What's in this crate

• Runtime selection of scalar / matrix / linear-solver / ODE-solver types.
• A C API for building and solving ODE/DAE problems.
• Integration with the DiffSL DSL for specifying equations.

Features

• diffsl-cranelift: DiffSL with the Cranelift JIT backend.
• diffsl-llvm15 … diffsl-llvm21: DiffSL with the corresponding LLVM backend.
• diffsl-external-f64 / diffsl-external-f32 / diffsl-external-dynamic: externally compiled DiffSL modules.
• suitesparse: enable the KLU sparse direct solver (via diffsol/suitesparse).
• wasm: WebAssembly support.

Links

• Main crate: https://crates.io/crates/diffsol
• Documentation: https://docs.rs/diffsol-c
• Book: https://martinjrobins.github.io/diffsol/

License

Licensed under the MIT license. See the repository for details.