From 2b2d3a135a43cbafadd8957e0b2543f38c390437 Mon Sep 17 00:00:00 2001
From: Marek Polacek <polacek@redhat.com>
Date: Fri, 5 Apr 2024 13:40:33 -0400
Subject: c++: add fixed test [PR91079]

Fixed by r12-2975.

	PR c++/91079
	DR 1881

gcc/testsuite/ChangeLog:

	* g++.dg/ext/is_std_layout5.C: New test.
---
 gcc/testsuite/g++.dg/ext/is_std_layout5.C | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/ext/is_std_layout5.C

(limited to 'gcc')

diff --git a/gcc/testsuite/g++.dg/ext/is_std_layout5.C b/gcc/testsuite/g++.dg/ext/is_std_layout5.C
new file mode 100644
index 0000000..875f3c0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/is_std_layout5.C
@@ -0,0 +1,13 @@
+// PR c++/91079
+// DR 1881 - Standard-layout classes and unnamed bit-fields
+// { dg-do compile { target c++11 } }
+
+struct A { int a : 4; };
+struct B : A { int b : 3; };
+static_assert(__is_standard_layout(A), "");
+static_assert(!__is_standard_layout(B), "");
+
+struct C { int : 0; };
+struct D : C { int : 0; };
+static_assert(__is_standard_layout(C), "");
+static_assert(!__is_standard_layout(D), "");
-- 
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