use anyhow::Result; use rust_library::rust_double_value; extern "C" { fn cc_double_value(value: i32) -> i32; } #[tokio::main] async fn main() -> Result<()> { println!("Hello World!"); println!("CC: {}", unsafe{ cc_double_value(5) }); println!("Rust: {}", rust_double_value(5)); Ok(()) }