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trait Trait {}
// Make sure casts between thin-pointer <-> fat pointer obey RFC401
fn main() {
let a: &[i32] = &[1, 2, 3];
let b: Box<[i32]> = Box::new([1, 2, 3]);
let p = a as *const [i32];
let q = a.as_ptr();
a as usize; //~ ERROR casting
a as isize; //~ ERROR casting
a as i16; //~ ERROR casting `&[i32]` as `i16` is invalid
a as u32; //~ ERROR casting `&[i32]` as `u32` is invalid
b as usize; //~ ERROR non-primitive cast
p as usize;
//~^ ERROR casting
// #22955
q as *const [i32]; //~ ERROR cannot cast
// #21397
let t: *mut (dyn Trait + 'static) = 0 as *mut _;
//~^ ERROR cannot cast `usize` to a pointer that is wide
let mut fail: *const str = 0 as *const str;
//~^ ERROR cannot cast `usize` to a pointer that is wide
let mut fail2: *const str = 0isize as *const str;
//~^ ERROR cannot cast `isize` to a pointer that is wide
}
fn foo<T: ?Sized>() {
let s = 0 as *const T;
//~^ ERROR cannot cast `usize` to a pointer that may be wide
}
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