Avoid divide-by-zero when checking if a field will merge with bitfields

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/headers/divide-by-zero-in-struct-layout.h b/tests/headers/divide-by-zero-in-struct-layout.h
new file mode 100644
index 00000000..470250d3
--- /dev/null
+++ b/tests/headers/divide-by-zero-in-struct-layout.h
@@ -0,0 +1,22 @@
+// bindgen-flags: --no-layout-tests
+//
+// Unfortunately, we aren't translating the second and third structs correctly
+// yet. But we definitely shouldn't divide-by-zero when we see it...
+//
+// Once we fix #981 we should remove the `--no-layout-tests`.
+
+struct WithBitfield {
+    unsigned : 7;
+    unsigned a;
+};
+
+struct WithBitfieldAndAttrPacked {
+    unsigned : 7;
+    unsigned a;
+} __attribute__((packed));
+
+#pragma pack(1)
+struct WithBitfieldAndPacked {
+    unsigned : 7;
+    unsigned a;
+};