0.5.1

• Enable functions to have a different name between Rust and C++ (#349)
  • Within cxx::bridge, write #[rust_name = "..."] or #[cxx_name = "..."] to make a change to either name of a function
  • In general many functions can have the same C++ name (due to overloading); every function must continue to have a unique Rust name

#[cxx::bridge]
mod ffi {
    extern "C++" {
        include!("path/to/header.h");

        #[cxx_name = "take"]
        fn take_int(i: i32);

        #[cxx_name = "take"] // different overload of the same name in C++
        fn take_str(s: &str);
    }
}

0.5.0

• Enable extern type aliases to be passed and returned by value across the FFI as long as an unsafe impl ExternType impl claims that the underlying C++ type is trivially move constructible and trivially destructible; see https://docs.rs/cxx/0.5.0/cxx/trait.ExternType.html#associatedtype.Kind (#325, thanks @adetaylor)
• Expose a way for particular generic type instantiations of std::unique_ptr and std::vector, like UniquePtr<MyType>, to be produced on demand (#336)
• Enable import of handwritten as well as generated headers from direct dependencies in the Cargo-based workflow; see https://docs.rs/cxx-build/0.5.0/cxx_build/static.CFG.html#cfginclude_prefix (#346, #347)

0.4.7

• Add CxxVector::as_slice to get a &[T] from a C++ vector (#322)
• Make --header command line flag optional when outputting to a file ending with .h extension (#318)
• Support one cxxbridge command line invocation outputting both the generated header and generated source file (#319)

0.4.6

• Fix noncompilable generated code when returning Result<Box<T>> from Rust to C++ (#309, #311)

0.4.5

• Add -o/--output flag for cxxbridge CLI to control output location (#299)
• Fix missing type in generated code in some cases involving Result (#301, thanks @Nehliin)
• Support cross compilation to Windows (#302)

0.4.4

• Make rust::Error inherit publicly from std::exception so that it can be caught by catch (const std::exception &e) {

0.4.3

• Support working with a C++ namespace that contains Rust reserved words in the namespace path (#286)

0.4.2

• Fix missing definitions in generated code involving Vec (#277)
• Accept - as referring to stdin in the command line code generator (#278)

0.4.1

• Fix out-of-date generated code being pulled into Cargo builds

0.4.0

• Fix various sources of brittleness in the Cargo-based workflow (#88, #213)

• Breaking change: the default #include path set up for your build by cxx_build::bridge now contains the crate name as the first component of paths. So if your crate name is my-crate and cxx_build::bridge is invoked with "src/lib.rs" as the local path, the resulting generated header would be includable from C++ as #include "my-crate/src/lib.rs.h". Headers from dependencies are now also available exactly the same way: their crate name followed by local path within the crate.