rust/tests/compile-fail/shim_arg_size.rs
2020-11-10 16:51:07 +01:00

16 lines
427 B
Rust

fn main() {
extern "C" {
// Use the wrong type(ie. not the pointer width) for the `size`
// argument.
#[cfg(target_pointer_width="64")]
fn malloc(size: u32) -> *mut std::ffi::c_void;
#[cfg(target_pointer_width="32")]
fn malloc(size: u16) -> *mut std::ffi::c_void;
}
unsafe {
let _p1 = malloc(42); //~ ERROR Undefined Behavior: scalar size mismatch
};
}