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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/consts/const-ptr-nonnull-rpass.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/consts/const-ptr-nonnull-rpass.rs')
-rw-r--r-- | tests/ui/consts/const-ptr-nonnull-rpass.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/consts/const-ptr-nonnull-rpass.rs b/tests/ui/consts/const-ptr-nonnull-rpass.rs new file mode 100644 index 000000000..67d52ad08 --- /dev/null +++ b/tests/ui/consts/const-ptr-nonnull-rpass.rs @@ -0,0 +1,17 @@ +// run-pass + +#![feature(ptr_internals, test)] + +extern crate test; +use test::black_box as b; // prevent promotion of the argument and const-propagation of the result + +use std::ptr::NonNull; + +const DANGLING: NonNull<u32> = NonNull::dangling(); +const CASTED: NonNull<u32> = NonNull::cast(NonNull::<i32>::dangling()); + +pub fn main() { + // Be super-extra paranoid and cast the fn items to fn pointers before blackboxing them. + assert_eq!(DANGLING, b::<fn() -> _>(NonNull::dangling)()); + assert_eq!(CASTED, b::<fn() -> _>(NonNull::dangling)()); +} |