From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/packed/packed-struct-borrow-element.rs | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/test/ui/packed/packed-struct-borrow-element.rs (limited to 'src/test/ui/packed/packed-struct-borrow-element.rs') diff --git a/src/test/ui/packed/packed-struct-borrow-element.rs b/src/test/ui/packed/packed-struct-borrow-element.rs new file mode 100644 index 000000000..a6ee90cef --- /dev/null +++ b/src/test/ui/packed/packed-struct-borrow-element.rs @@ -0,0 +1,34 @@ +// run-pass (note: this is spec-UB, but it works for now) +#![allow(dead_code)] +// 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 +} + +#[warn(unaligned_references)] +pub fn main() { + let foo = Foo1 { bar: 1, baz: 2 }; + let brw = &foo.baz; //~WARN reference to packed field is unaligned + //~^ previously accepted + assert_eq!(*brw, 2); + + let foo = Foo2 { bar: 1, baz: 2 }; + let brw = &foo.baz; //~WARN reference to packed field is unaligned + //~^ previously accepted + assert_eq!(*brw, 2); +} -- cgit v1.2.3