rust/tests/run-make/extern-fn-generic/test.rs
2023-03-30 07:34:55 -05:00

21 lines
474 B
Rust

extern crate testcrate;
extern "C" fn bar<T>(ts: testcrate::TestStruct<T>) -> T {
ts.y
}
#[link(name = "test", kind = "static")]
extern "C" {
fn call(c: extern "C" fn(testcrate::TestStruct<i32>) -> i32) -> i32;
}
fn main() {
// Let's test calling it cross crate
let back = unsafe { testcrate::call(testcrate::foo::<i32>) };
assert_eq!(3, back);
// And just within this crate
let back = unsafe { call(bar::<i32>) };
assert_eq!(3, back);
}