[rustc.git] / src / test / ui / abi / extern / extern-pass-TwoU8s.rs

// run-pass
#![allow(improper_ctypes)]

// ignore-wasm32-bare no libc for ffi testing

// Test a foreign function that accepts and returns a struct
// by value.

#[derive(Copy, Clone, PartialEq, Debug)]
pub struct TwoU8s {
    one: u8,
    two: u8,
}

#[link(name = "rust_test_helpers", kind = "static")]
extern "C" {
    pub fn rust_dbg_extern_identity_TwoU8s(v: TwoU8s) -> TwoU8s;
}

pub fn main() {
    unsafe {
        let x = TwoU8s { one: 22, two: 23 };
        let y = rust_dbg_extern_identity_TwoU8s(x);
        assert_eq!(x, y);
    }
}
Commit	Line	Data
b7449926 XL	1	// run-pass
	2	#![allow(improper_ctypes)]
	3
abe05a73 XL	4	// ignore-wasm32-bare no libc for ffi testing
abe05a73 XL	5
970d7e83 LB	6	// Test a foreign function that accepts and returns a struct
970d7e83 LB	7	// by value.
223e47cc	8
c34b1796	9	#[derive(Copy, Clone, PartialEq, Debug)]
1a4d82fc	10	pub struct TwoU8s {
5869c6ff XL	11	one: u8,
5869c6ff XL	12	two: u8,
970d7e83 LB	13	}
970d7e83 LB	14
476ff2be	15	#[link(name = "rust_test_helpers", kind = "static")]
5869c6ff	16	extern "C" {
970d7e83	17	pub fn rust_dbg_extern_identity_TwoU8s(v: TwoU8s) -> TwoU8s;
223e47cc LB	18	}
	19
	20	pub fn main() {
970d7e83	21	unsafe {
5869c6ff	22	let x = TwoU8s { one: 22, two: 23 };
970d7e83 LB	23	let y = rust_dbg_extern_identity_TwoU8s(x);
	24	assert_eq!(x, y);
	25	}
223e47cc	26	}