diff options
Diffstat (limited to 'tests/ui/structs-enums/enum-alignment.rs')
-rw-r--r-- | tests/ui/structs-enums/enum-alignment.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/ui/structs-enums/enum-alignment.rs b/tests/ui/structs-enums/enum-alignment.rs new file mode 100644 index 000000000..108dfe2e6 --- /dev/null +++ b/tests/ui/structs-enums/enum-alignment.rs @@ -0,0 +1,24 @@ +// run-pass +#![allow(dead_code)] +#![allow(deprecated)] + +use std::mem; + +fn addr_of<T>(ptr: &T) -> usize { + ptr as *const T as usize +} + +fn is_aligned<T>(ptr: &T) -> bool { + unsafe { + let addr: usize = mem::transmute(ptr); + (addr % mem::min_align_of::<T>()) == 0 + } +} + +pub fn main() { + let x = Some(0u64); + match x { + None => panic!(), + Some(ref y) => assert!(is_aligned(y)) + } +} |