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// test the deref_nullptr lint
#![deny(deref_nullptr)]
use std::ptr;
struct Struct {
field: u8,
}
fn f() {
unsafe {
let a = 1;
let ub = *(a as *const i32);
let ub = *(0 as *const i32);
//~^ ERROR dereferencing a null pointer
let ub = *ptr::null::<i32>();
//~^ ERROR dereferencing a null pointer
let ub = *ptr::null_mut::<i32>();
//~^ ERROR dereferencing a null pointer
let ub = *(ptr::null::<i16>() as *const i32);
//~^ ERROR dereferencing a null pointer
let ub = *(ptr::null::<i16>() as *mut i32 as *mut usize as *const u8);
//~^ ERROR dereferencing a null pointer
let ub = &*ptr::null::<i32>();
//~^ ERROR dereferencing a null pointer
let ub = &*ptr::null_mut::<i32>();
//~^ ERROR dereferencing a null pointer
ptr::addr_of!(*ptr::null::<i32>());
// ^^ OKAY
ptr::addr_of_mut!(*ptr::null_mut::<i32>());
// ^^ OKAY
let offset = ptr::addr_of!((*ptr::null::<Struct>()).field);
//~^ ERROR dereferencing a null pointer
}
}
fn main() {}
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