diff options
Diffstat (limited to 'tests/ui/abi/extern/auxiliary/extern-crosscrate-source.rs')
-rw-r--r-- | tests/ui/abi/extern/auxiliary/extern-crosscrate-source.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/abi/extern/auxiliary/extern-crosscrate-source.rs b/tests/ui/abi/extern/auxiliary/extern-crosscrate-source.rs new file mode 100644 index 000000000..9c61518b9 --- /dev/null +++ b/tests/ui/abi/extern/auxiliary/extern-crosscrate-source.rs @@ -0,0 +1,28 @@ +#![crate_name = "externcallback"] +#![crate_type = "lib"] +#![feature(rustc_private)] + +extern crate libc; + +pub mod rustrt { + extern crate libc; + + #[link(name = "rust_test_helpers", kind = "static")] + extern "C" { + pub fn rust_dbg_call( + cb: extern "C" fn(libc::uintptr_t) -> libc::uintptr_t, + data: libc::uintptr_t, + ) -> libc::uintptr_t; + } +} + +pub fn fact(n: libc::uintptr_t) -> libc::uintptr_t { + unsafe { + println!("n = {}", n); + rustrt::rust_dbg_call(cb, n) + } +} + +pub extern "C" fn cb(data: libc::uintptr_t) -> libc::uintptr_t { + if data == 1 { data } else { fact(data - 1) * data } +} |