| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| 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 |
| //~^ HELP cast through a raw pointer first |
| b as usize; //~ ERROR non-scalar cast |
| p as usize; |
| //~^ ERROR casting |
| //~^^ HELP cast through a thin pointer |
| |
| // #22955 |
| q as *const [i32]; //~ ERROR cannot cast |
| |
| // #21397 |
| let t: *mut (Trait + 'static) = 0 as *mut _; //~ ERROR casting |
| let mut fail: *const str = 0 as *const str; //~ ERROR casting |
| } |
