diff options
Diffstat (limited to 'src/test/ui/consts/const_fn_unsize.rs')
-rw-r--r-- | src/test/ui/consts/const_fn_unsize.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/consts/const_fn_unsize.rs b/src/test/ui/consts/const_fn_unsize.rs new file mode 100644 index 000000000..01da57320 --- /dev/null +++ b/src/test/ui/consts/const_fn_unsize.rs @@ -0,0 +1,21 @@ +// run-pass +#![feature(slice_ptr_len)] + +use std::ptr::NonNull; + +#[allow(unused)] +const fn test() { + let _x = NonNull::<[i32; 0]>::dangling() as NonNull<[i32]>; +} + +// Regression test for #75118. +pub const fn dangling_slice<T>() -> NonNull<[T]> { + NonNull::<[T; 1]>::dangling() +} + +const C: NonNull<[i32]> = dangling_slice(); + +fn main() { + assert_eq!(C.as_ptr(), NonNull::<[i32; 1]>::dangling().as_ptr() as *mut _); + assert_eq!(C.as_ptr().len(), 1); +} |