Auto merge of #1130 - fitzgen:issue-1076, r=pepyakin

Unnamed bit-fields and alignment

r? @pepyakin or @emilio

3 files changed, 39 insertions, 3 deletions

diff --git a/tests/expectations/tests/issue-1034.rs b/tests/expectations/tests/issue-1034.rs
index b0c4b529..b5c7d6bb 100644
--- a/tests/expectations/tests/issue-1034.rs
+++ b/tests/expectations/tests/issue-1034.rs
@@ -4,10 +4,11 @@
 #![allow(dead_code, non_snake_case, non_camel_case_types, non_upper_case_globals)]
 
 
-#[repr(C, packed)]
+#[repr(C)]
 #[derive(Debug, Default, Copy, Clone)]
 pub struct S2 {
-    pub _bitfield_1: u16,
+    pub _bitfield_1: u8,
+    pub __bindgen_padding_0: u8,
 }
 #[test]
 fn bindgen_test_layout_S2() {
@@ -24,7 +25,7 @@ fn bindgen_test_layout_S2() {
 }
 impl S2 {
     #[inline]
-    pub fn new_bitfield_1() -> u16 {
+    pub fn new_bitfield_1() -> u8 {
         0
     }
 }
diff --git a/tests/expectations/tests/issue-1076-unnamed-bitfield-alignment.rs b/tests/expectations/tests/issue-1076-unnamed-bitfield-alignment.rs
new file mode 100644
index 00000000..00b3f11b
--- /dev/null
+++ b/tests/expectations/tests/issue-1076-unnamed-bitfield-alignment.rs
@@ -0,0 +1,31 @@
+/* automatically generated by rust-bindgen */
+
+
+#![allow(dead_code, non_snake_case, non_camel_case_types, non_upper_case_globals)]
+
+
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct S1 {
+    pub _bitfield_1: [u8; 2usize],
+    pub __bindgen_padding_0: u8,
+}
+#[test]
+fn bindgen_test_layout_S1() {
+    assert_eq!(
+        ::std::mem::size_of::<S1>(),
+        3usize,
+        concat!("Size of: ", stringify!(S1))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<S1>(),
+        1usize,
+        concat!("Alignment of ", stringify!(S1))
+    );
+}
+impl S1 {
+    #[inline]
+    pub fn new_bitfield_1() -> u16 {
+        0
+    }
+}
diff --git a/tests/headers/issue-1076-unnamed-bitfield-alignment.h b/tests/headers/issue-1076-unnamed-bitfield-alignment.h
new file mode 100644
index 00000000..876ec174
--- /dev/null
+++ b/tests/headers/issue-1076-unnamed-bitfield-alignment.h
@@ -0,0 +1,4 @@
+struct S1 {
+    signed : 15;
+    unsigned : 6
+};