1 files changed, 41 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/template.bitset/bitset.members/all.pass.cpp b/libcxx/test/std/utilities/template.bitset/bitset.members/all.pass.cpp
new file mode 100644
index 00000000000..5387b733918
--- /dev/null
+++ b/libcxx/test/std/utilities/template.bitset/bitset.members/all.pass.cpp
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test bool all() const;
+
+#include <bitset>
+#include <cassert>
+
+template <std::size_t N>
+void test_all()
+{
+    std::bitset<N> v;
+    v.reset();
+    assert(v.all() == (N == 0));
+    v.set();
+    assert(v.all() == true);
+    if (N > 1)
+    {
+        v[N/2] = false;
+        assert(v.all() == false);
+    }
+}
+
+int main()
+{
+    test_all<0>();
+    test_all<1>();
+    test_all<31>();
+    test_all<32>();
+    test_all<33>();
+    test_all<63>();
+    test_all<64>();
+    test_all<65>();
+    test_all<1000>();
+}