File: unsized-union-ice.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (14 lines) | stat: -rw-r--r-- 412 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
// Regression test for https://github.com/rust-lang/rust/issues/122581
// This used to ICE, because the union was unsized and the pointer casting code
// assumed that non-struct ADTs must be sized.

union Union {
    val: std::mem::ManuallyDrop<[u8]>,
    //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
}

fn cast(ptr: *const ()) -> *const Union {
    ptr as _
}

fn main() {}