1 files changed, 34 insertions, 0 deletions
diff --git a/test/std/input.output/iostreams.base/ios/basic.ios.members/rdbuf_streambuf.pass.cpp b/test/std/input.output/iostreams.base/ios/basic.ios.members/rdbuf_streambuf.pass.cpp
new file mode 100644
index 0000000000000..cc0b3f3f169b1
--- /dev/null
+++ b/test/std/input.output/iostreams.base/ios/basic.ios.members/rdbuf_streambuf.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <ios>
+
+// template <class charT, class traits> class basic_ios
+
+// basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
+
+#include <ios>
+#include <streambuf>
+#include <cassert>
+
+int main()
+{
+    std::ios ios(0);
+    assert(ios.rdbuf() == 0);
+    assert(!ios.good());
+    std::streambuf* sb = (std::streambuf*)1;
+    std::streambuf* sb2 = ios.rdbuf(sb);
+    assert(sb2 == 0);
+    assert(ios.rdbuf() == sb);
+    assert(ios.good());
+    sb2 = ios.rdbuf(0);
+    assert(sb2 == (std::streambuf*)1);
+    assert(ios.rdbuf() == 0);
+    assert(ios.bad());
+}