1 #[no_mangle]
malloc(_: usize) -> *mut std::ffi::c_void2 extern "C" fn malloc(_: usize) -> *mut std::ffi::c_void {
3     //~^ HELP the `malloc` symbol is defined here
4     unreachable!()
5 }
6 
main()7 fn main() {
8     extern "C" {
9         fn malloc(_: usize) -> *mut std::ffi::c_void;
10     }
11     unsafe {
12         malloc(0);
13         //~^ ERROR found `malloc` symbol definition that clashes with a built-in shim
14     }
15 }
16