// run-pass // ignore-emscripten no threads support #![feature(rustc_private)] extern crate libc; use std::mem; use std::thread; #[link(name = "rust_test_helpers", kind = "static")] extern "C" { fn rust_dbg_call(cb: extern "C" fn(libc::uintptr_t), data: libc::uintptr_t) -> libc::uintptr_t; } pub fn main() { unsafe { thread::spawn(move || { let i: isize = 100; rust_dbg_call(callback_isize, mem::transmute(&i)); }) .join() .unwrap(); thread::spawn(move || { let i: i32 = 100; rust_dbg_call(callback_i32, mem::transmute(&i)); }) .join() .unwrap(); thread::spawn(move || { let i: i64 = 100; rust_dbg_call(callback_i64, mem::transmute(&i)); }) .join() .unwrap(); } } extern "C" fn callback_isize(data: libc::uintptr_t) { unsafe { let data: *const isize = mem::transmute(data); assert_eq!(*data, 100); } } extern "C" fn callback_i64(data: libc::uintptr_t) { unsafe { let data: *const i64 = mem::transmute(data); assert_eq!(*data, 100); } } extern "C" fn callback_i32(data: libc::uintptr_t) { unsafe { let data: *const i32 = mem::transmute(data); assert_eq!(*data, 100); } }