mirror of https://github.com/rust-lang/rust
24 lines
664 B
Rust
24 lines
664 B
Rust
//@ 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 could not evaluate static initializer
|
|
//~| exposing pointers
|
|
let _v = x == x;
|
|
};
|
|
|
|
static PTR_INT_TRANSMUTE: () = unsafe {
|
|
let x: usize = std::mem::transmute(&0);
|
|
let _v = x + 0;
|
|
//~^ ERROR could not evaluate static initializer
|
|
//~| 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() {}
|