In which circumstances is C++ better than Rust?

1. rust-bindgen

   1 4 1 0.0 Rust

   THIS CRATE IS DEPRECATED, please use https://github.com/servo/rust-bindgen. (by Yamakaky)

   

   But Rust has their "library" to create the wrapper bindings https://crates.io/crates/bindgen and it does a more than decent job, it will struggle with some C++ things but 99% of the time it can do it alone

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3. slint

   2 147 18,911 10.0 Rust

   Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

   

   See Slint.

4. unreal-rust

   3 5 2,156 0.0 Rust

   Rust integration for Unreal Engine 5

   

   - Unreal https://github.com/MaikKlein/unreal-rust and if you look inside the FFI part (called workspace in Rust) at what libs it uses https://github.com/MaikKlein/unreal-rust/blob/main/unreal-ffi/Cargo.toml is cbindgen which is a FFI generator tool

5. cxx

   4 100 6,242 9.6 Rust

   Safe interop between Rust and C++

   

   Google has invested a lot of money also in https://cxx.rs/ so is not as a big deal at it should be using C++ with Rust

6. Rust-CUDA

   5 42 4,300 8.8 Rust

   Ecosystem of libraries and tools for writing and executing fast GPU code fully in Rust.

   

   - Cuda is not doing by FFI linking, instead is compiling CUDA code natively in Rust https://github.com/Rust-GPU/Rust-CUDA and even if it not complete as the C++ SDK is more than a toy

7. rsmpi

   6 4 530 5.6 Rust

   MPI bindings for Rust

   

   - OpenMPI https://github.com/rsmpi/rsmpi and if you look at dependency you will find mpi-sys (is a rust thing but it is the current FFI part) and if go and look for it https://crates.io/crates/mpi-sys/0.2.0/dependencies sure it have it, bindgen as a dependency

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