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#![deny(improper_ctypes, improper_ctypes_definitions)]
use anyhow::anyhow;
#[no_mangle]
pub extern "C" fn anyhow1(err: anyhow::Error) {
println!("{:?}", err);
}
#[no_mangle]
pub extern "C" fn anyhow2(err: &mut Option<anyhow::Error>) {
*err = Some(anyhow!("ffi error"));
}
#[no_mangle]
pub extern "C" fn anyhow3() -> Option<anyhow::Error> {
Some(anyhow!("ffi error"))
}
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