3 #![warn(clippy::ptr_as_ptr)]
4 #![feature(custom_inner_attributes)]
7 let ptr: *const u32 = &42_u32;
8 let mut_ptr: *mut u32 = &mut 42_u32;
10 let _ = ptr as *const i32;
11 let _ = mut_ptr as *mut i32;
13 // Make sure the lint can handle the difference in their operator precedences.
15 let ptr_ptr: *const *const u32 = &ptr;
16 let _ = *ptr_ptr as *const i32;
19 // Changes in mutability. Do not lint this.
20 let _ = ptr as *mut i32;
21 let _ = mut_ptr as *const i32;
23 // `pointer::cast` cannot perform unsized coercions unlike `as`. Do not lint this.
24 let ptr_of_array: *const [u32; 4] = &[1, 2, 3, 4];
25 let _ = ptr_of_array as *const [u32];
26 let _ = ptr_of_array as *const dyn std::fmt::Debug;
28 // Ensure the lint doesn't produce unnecessary turbofish for inferred types.
29 let _: *const i32 = ptr as *const _;
30 let _: *mut i32 = mut_ptr as _;
34 #![clippy::msrv = "1.37"]
35 let ptr: *const u32 = &42_u32;
36 let mut_ptr: *mut u32 = &mut 42_u32;
38 // `pointer::cast` was stabilized in 1.38. Do not lint this
39 let _ = ptr as *const i32;
40 let _ = mut_ptr as *mut i32;
44 #![clippy::msrv = "1.38"]
45 let ptr: *const u32 = &42_u32;
46 let mut_ptr: *mut u32 = &mut 42_u32;
48 let _ = ptr as *const i32;
49 let _ = mut_ptr as *mut i32;