base on Automatically generates Rust FFI bindings to C (and some C++) libraries. [](https://crates.io/crates/bindgen) [](https://docs.rs/bindgen/) # `bindgen` **`bindgen` automatically generates Rust FFI bindings to C (and some C++) libraries.** For example, given the C header `doggo.h`: ```c typedef struct Doggo { int many; char wow; } Doggo; void eleven_out_of_ten_majestic_af(Doggo* pupper); ``` `bindgen` produces Rust FFI code allowing you to call into the `doggo` library's functions and use its types: ```rust /* automatically generated by rust-bindgen 0.99.9 */ #[repr(C)] pub struct Doggo { pub many: ::std::os::raw::c_int, pub wow: ::std::os::raw::c_char, } extern "C" { pub fn eleven_out_of_ten_majestic_af(pupper: *mut Doggo); } ``` ## Users Guide [📚 Read the `bindgen` users guide here! 📚](https://rust-lang.github.io/rust-bindgen) ## MSRV The `bindgen` minimum supported Rust version is **1.70.0**. The `bindgen-cli` minimum supported Rust version is **1.70.0**. No MSRV bump policy has been established yet, so MSRV may increase in any release. The MSRV is the minimum Rust version that can be used to *compile* each crate. However, `bindgen` and `bindgen-cli` can generate bindings that are compatible with Rust versions below the current MSRV. Most of the time, the `bindgen-cli` crate will have a more recent MSRV than `bindgen` as crates such as `clap` require it. ## API Reference [API reference documentation is on docs.rs](https://docs.rs/bindgen) ## Environment Variables In addition to the [library API](https://docs.rs/bindgen) and [executable command-line API][bindgen-cmdline], `bindgen` can be controlled through environment variables. End-users should set these environment variables to modify `bindgen`'s behavior without modifying the source code of direct consumers of `bindgen`. - `BINDGEN_EXTRA_CLANG_ARGS`: extra arguments to pass to `clang` - Arguments are whitespace-separated - Use shell-style quoting to pass through whitespace - Examples: - Specify alternate sysroot: `--sysroot=/path/to/sysroot` - Add include search path with spaces: `-I"/path/with spaces"` - `BINDGEN_EXTRA_CLANG_ARGS_<TARGET>`: similar to `BINDGEN_EXTRA_CLANG_ARGS`, but used to set per-target arguments to pass to clang. Useful to set system include directories in a target-specific way in cross-compilation environments with multiple targets. Has precedence over `BINDGEN_EXTRA_CLANG_ARGS`. Additionally, `bindgen` uses `libclang` to parse C and C++ header files. To modify how `bindgen` searches for `libclang`, see the [`clang-sys` documentation][clang-sys-env]. For more details on how `bindgen` uses `libclang`, see the [`bindgen` users guide][bindgen-book-clang]. ## Releases We don't follow a specific release calendar, but if you need a release please file an issue requesting that (ping `@emilio` for increased effectiveness). ## Contributing [See `CONTRIBUTING.md` for hacking on `bindgen`!](./CONTRIBUTING.md) [bindgen-cmdline]: https://rust-lang.github.io/rust-bindgen/command-line-usage.html [clang-sys-env]: https://github.com/KyleMayes/clang-sys#environment-variables [bindgen-book-clang]: https://rust-lang.github.io/rust-bindgen/requirements.html#clang ", Assign "at most 3 tags" to the expected json: {"id":"3342","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"