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//@ run-pass
const extern "C" fn foo1(val: u8) -> u8 {
val + 1
}
const extern "C" fn foo2(val: u8) -> u8 {
val + 1
}
const unsafe extern "C" fn bar1(val: bool) -> bool {
!val
}
const unsafe extern "C" fn bar2(val: bool) -> bool {
!val
}
#[allow(improper_ctypes_definitions)]
const extern "C" fn unsize(x: &[u8; 3]) -> &[u8] {
x
}
#[allow(improper_ctypes_definitions)]
const unsafe extern "C" fn closure() -> fn() {
|| {}
}
const unsafe extern "C" fn use_float() -> f32 {
1.0 + 1.0
}
fn main() {
let a: [u8; foo1(25) as usize] = [0; 26];
let b: [u8; foo2(25) as usize] = [0; 26];
assert_eq!(a, b);
let bar1_res = unsafe { bar1(false) };
let bar2_res = unsafe { bar2(false) };
assert!(bar1_res);
assert_eq!(bar1_res, bar2_res);
let _foo1_cast: extern "C" fn(u8) -> u8 = foo1;
let _foo2_cast: extern "C" fn(u8) -> u8 = foo2;
let _bar1_cast: unsafe extern "C" fn(bool) -> bool = bar1;
let _bar2_cast: unsafe extern "C" fn(bool) -> bool = bar2;
unsize(&[0, 1, 2]);
unsafe {
closure();
}
unsafe {
use_float();
}
}
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