about summary refs log tree commit diff
path: root/tests/ui/consts/miri_unleashed/ptr_arith.rs
blob: 3f34102833b0a4fe948aa9f23de0d20e38ccee46 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
//@ compile-flags: -Zunleash-the-miri-inside-of-you

// During CTFE, we prevent pointer-to-int casts.
// Pointer comparisons are prevented in the trait system.

static PTR_INT_CAST: () = {
    let x = &0 as *const _ as usize;
    //~^ ERROR exposing pointers
    let _v = x == x;
};

static PTR_INT_TRANSMUTE: () = unsafe {
    let x: usize = std::mem::transmute(&0);
    let _v = x + 0;
    //~^ ERROR unable to turn pointer into integer
};

// I'd love to test pointer comparison, but that is not possible since
// their `PartialEq` impl is non-`const`.

fn main() {}

//~? WARN skipping const checks