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bindgen

bindgen automatically generates Rust FFI bindings to C and C++ libraries.

For example, given the C header cool.h:

typedef struct CoolStruct {
    int x;
    int y;
} CoolStruct;

void cool_function(int i, char c, CoolStruct* cs);

bindgen produces Rust FFI code allowing you to call into the cool library's functions and use its types:

/* automatically generated by rust-bindgen */

#[repr(C)]
pub struct CoolStruct {
    pub x: ::std::os::raw::c_int,
    pub y: ::std::os::raw::c_int,
}

extern "C" {
    pub fn cool_function(i: ::std::os::raw::c_int,
                         c: ::std::os::raw::c_char,
                         cs: *mut CoolStruct);
}

Users Guide

📚 Read the bindgen users guide here! 📚

API Reference

API reference documentation is on docs.rs

Contributing

See CONTRIBUTING.md for hacking on bindgen!