rust/tests/ui/issue_3849.rs
Félix Fischer 069957a8ad Add TransmutingNull Lint
* Late Lint pass, catches:
  * One liner: 0 -> null -> transmute
  * One liner: std:null() -> transmute
  * Const (which resolves to null) -> transmute
* UI Test case for Lint
* Updated test for issue 3849, because now the lint that code generated is in Clippy.
* Expanded `const.rs` miri-based Constant Folding code, to cover
  raw pointers
2019-04-02 11:39:43 -03:00

15 lines
341 B
Rust

#![allow(dead_code)]
#![allow(clippy::zero_ptr)]
#![allow(clippy::transmute_ptr_to_ref)]
#![allow(clippy::transmuting_null)]
pub const ZPTR: *const usize = 0 as *const _;
fn main() {
unsafe {
#[clippy::author]
let _: &i32 = std::mem::transmute(ZPTR);
let _: &i32 = std::mem::transmute(0 as *const i32);
}
}