From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- .../promoted_const_fn_fail_deny_const_err.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 tests/ui/consts/const-eval/promoted_const_fn_fail_deny_const_err.rs (limited to 'tests/ui/consts/const-eval/promoted_const_fn_fail_deny_const_err.rs') diff --git a/tests/ui/consts/const-eval/promoted_const_fn_fail_deny_const_err.rs b/tests/ui/consts/const-eval/promoted_const_fn_fail_deny_const_err.rs new file mode 100644 index 000000000..5009dbcb9 --- /dev/null +++ b/tests/ui/consts/const-eval/promoted_const_fn_fail_deny_const_err.rs @@ -0,0 +1,22 @@ +#[repr(C)] +union Bar { + a: &'static u8, + b: usize, +} + +const fn bar() -> u8 { + unsafe { + // This will error as long as this test is run on a system whose + // pointers need more than 8 bits. + Bar { a: &42 }.b as u8 + } +} + +fn main() { + // This will compile, but then hard-abort at runtime. + // FIXME(oli-obk): this should instead panic (not hard-abort) at runtime. + let x: &'static u8 = &(bar() + 1); + //~^ ERROR temporary value dropped while borrowed + let y = *x; + unreachable!(); +} -- cgit v1.2.3