rust/src/test/run-pass/foreign-call-no-runtime.rs

24 lines
482 B
Rust

use std::unstable::run_in_bare_thread;
extern {
pub fn rust_dbg_call(cb: *u8, data: libc::uintptr_t) -> libc::uintptr_t;
}
pub fn main() {
unsafe {
do run_in_bare_thread() {
unsafe {
let i = &100;
rust_dbg_call(callback, cast::transmute(i));
}
}
}
}
extern fn callback(data: libc::uintptr_t) {
unsafe {
let data: *int = cast::transmute(data);
assert_eq!(*data, 100);
}
}