src/test/ui/abi/extern/extern-pass-u32.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

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

// Test a function that takes/returns a u32.

#[link(name = "rust_test_helpers", kind = "static")]
extern "C" {
    pub fn rust_dbg_extern_identity_u32(v: u32) -> u32;
}

pub fn main() {
    unsafe {
        assert_eq!(22, rust_dbg_extern_identity_u32(22));
    }
}