1 files changed, 23 insertions, 0 deletions
diff --git a/test/std/input.output/iostreams.base/ios/basic.ios.members/widen.pass.cpp b/test/std/input.output/iostreams.base/ios/basic.ios.members/widen.pass.cpp
new file mode 100644
index 0000000000000..68fdf68598993
--- /dev/null
+++ b/test/std/input.output/iostreams.base/ios/basic.ios.members/widen.pass.cpp
@@ -0,0 +1,23 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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
+
+// char_type widen(char c) const;
+
+#include <ios>
+#include <cassert>
+
+int main()
+{
+    const std::ios ios(0);
+    assert(ios.widen('c') == 'c');
+}