alef 0.20.6

Opinionated polyglot binding generator for Rust libraries
Documentation 
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if _rc != 0 {
    let msg = if _out_error.is_null() {
        format!("vtable.{{ name }} returned error code {}", _rc)
    } else {
        // SAFETY: out_error was written by the callee as a valid CString.
        let cs = unsafe { std::ffi::CString::from_raw(_out_error) };
        cs.to_string_lossy().into_owned()
    };
    {{ error_return }}
}