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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/packed/packed-struct-address-of-element.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/packed/packed-struct-address-of-element.rs b/src/test/ui/packed/packed-struct-address-of-element.rs new file mode 100644 index 000000000..d86698cbf --- /dev/null +++ b/src/test/ui/packed/packed-struct-address-of-element.rs @@ -0,0 +1,36 @@ +// run-pass +#![allow(dead_code)] +#![feature(raw_ref_op)] +// ignore-emscripten weird assertion? + +#[repr(packed)] +struct Foo1 { + bar: u8, + baz: usize +} + +#[repr(packed(2))] +struct Foo2 { + bar: u8, + baz: usize +} + +#[repr(C, packed(4))] +struct Foo4C { + bar: u8, + baz: usize +} + +pub fn main() { + let foo = Foo1 { bar: 1, baz: 2 }; + let brw = &raw const foo.baz; + unsafe { assert_eq!(brw.read_unaligned(), 2); } + + let foo = Foo2 { bar: 1, baz: 2 }; + let brw = &raw const foo.baz; + unsafe { assert_eq!(brw.read_unaligned(), 2); } + + let mut foo = Foo4C { bar: 1, baz: 2 }; + let brw = &raw mut foo.baz; + unsafe { assert_eq!(brw.read_unaligned(), 2); } +} |