diff options
Diffstat (limited to 'tests/ui/consts/const-eval/raw-bytes.rs')
| -rw-r--r-- | tests/ui/consts/const-eval/raw-bytes.rs | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/tests/ui/consts/const-eval/raw-bytes.rs b/tests/ui/consts/const-eval/raw-bytes.rs index aa4a41a7caa..ff2a32d5757 100644 --- a/tests/ui/consts/const-eval/raw-bytes.rs +++ b/tests/ui/consts/const-eval/raw-bytes.rs @@ -1,7 +1,6 @@ // stderr-per-bitwidth // ignore-endian-big // ignore-tidy-linelength -// ignore-debug debug assertions catch some UB too early // normalize-stderr-test "╾─*ALLOC[0-9]+(\+[a-z0-9]+)?─*╼" -> "╾ALLOC_ID$1╼" #![feature(never_type, rustc_attrs, ptr_metadata, slice_from_ptr_range, const_slice_from_ptr_range)] @@ -13,6 +12,8 @@ use std::ptr::NonNull; use std::num::{NonZeroU8, NonZeroUsize}; use std::slice::{from_ptr_range, from_raw_parts}; +// # Bad enums and chars + #[repr(usize)] #[derive(Copy, Clone)] enum Enum { @@ -51,6 +52,7 @@ const BAD_UNINHABITED_VARIANT2: UninhDiscriminant = unsafe { mem::transmute(3u8) const BAD_OPTION_CHAR: Option<(char, char)> = Some(('x', unsafe { mem::transmute(!0u32) })); //~^ ERROR is undefined behavior +// # Bad pointers and references const NULL_PTR: NonNull<u8> = unsafe { mem::transmute(0usize) }; //~^ ERROR it is undefined behavior to use this value @@ -197,16 +199,7 @@ const RAW_TRAIT_OBJ_VTABLE_NULL: *const dyn Trait = unsafe { mem::transmute((&92 const RAW_TRAIT_OBJ_VTABLE_INVALID: *const dyn Trait = unsafe { mem::transmute((&92u8, &3u64)) }; //~^ ERROR it is undefined behavior to use this value - -// not ok, since alignment needs to be non-zero. -const LAYOUT_INVALID_ZERO: Layout = unsafe { Layout::from_size_align_unchecked(0x1000, 0x00) }; -//~^ ERROR it is undefined behavior to use this value - -// not ok, since alignment needs to be a power of two. -const LAYOUT_INVALID_THREE: Layout = unsafe { Layout::from_size_align_unchecked(9, 3) }; -//~^ ERROR it is undefined behavior to use this value - - +// Uninhabited types const _: &[!; 1] = unsafe { &*(1_usize as *const [!; 1]) }; //~ ERROR undefined behavior const _: &[!] = unsafe { &*(1_usize as *const [!; 1]) }; //~ ERROR undefined behavior const _: &[!] = unsafe { &*(1_usize as *const [!; 42]) }; //~ ERROR undefined behavior |