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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/packed/packed-struct-address-of-element.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/packed/packed-struct-address-of-element.rs')
-rw-r--r--src/test/ui/packed/packed-struct-address-of-element.rs36
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); }
+}