| //@ run-pass |
| |
| #[cfg(windows)] |
| mod imp { |
| type LPVOID = *mut u8; |
| type DWORD = u32; |
| type LPWSTR = *mut u16; |
| |
| extern "system" { |
| fn FormatMessageW(flags: DWORD, |
| lpSrc: LPVOID, |
| msgId: DWORD, |
| langId: DWORD, |
| buf: LPWSTR, |
| nsize: DWORD, |
| args: *const u8) |
| -> DWORD; |
| } |
| |
| pub fn test() { |
| let mut buf: [u16; 50] = [0; 50]; |
| let ret = unsafe { |
| FormatMessageW(0x1000, core::ptr::null_mut(), 1, 0x400, |
| buf.as_mut_ptr(), buf.len() as u32, core::ptr::null()) |
| }; |
| // On some 32-bit Windowses (Win7-8 at least) this will panic with segmented |
| // stacks taking control of pvArbitrary |
| assert!(ret != 0); |
| } |
| } |
| |
| #[cfg(not(windows))] |
| mod imp { |
| pub fn test() { } |
| } |
| |
| fn main() { |
| imp::test() |
| } |
