1 files changed, 63 insertions, 0 deletions
diff --git a/test/std/localization/locale.stdcvt/codecvt_utf16_max_length.pass.cpp b/test/std/localization/locale.stdcvt/codecvt_utf16_max_length.pass.cpp
new file mode 100644
index 0000000000000..29bb58d563de8
--- /dev/null
+++ b/test/std/localization/locale.stdcvt/codecvt_utf16_max_length.pass.cpp
@@ -0,0 +1,63 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <codecvt>
+
+// template <class Elem, unsigned long Maxcode = 0x10ffff,
+//           codecvt_mode Mode = (codecvt_mode)0>
+// class codecvt_utf16
+//     : public codecvt<Elem, char, mbstate_t>
+// {
+//     // unspecified
+// };
+
+// int max_length() const throw();
+
+#include <codecvt>
+#include <cassert>
+
+int main()
+{
+    {
+        typedef std::codecvt_utf16<wchar_t> C;
+        C c;
+        int r = c.max_length();
+        assert(r == 4);
+    }
+    {
+        typedef std::codecvt_utf16<wchar_t, 0xFFFFFFFF, std::consume_header> C;
+        C c;
+        int r = c.max_length();
+        assert(r == 6);
+    }
+    {
+        typedef std::codecvt_utf16<char16_t> C;
+        C c;
+        int r = c.max_length();
+        assert(r == 2);
+    }
+    {
+        typedef std::codecvt_utf16<char16_t, 0xFFFFFFFF, std::consume_header> C;
+        C c;
+        int r = c.max_length();
+        assert(r == 4);
+    }
+    {
+        typedef std::codecvt_utf16<char32_t> C;
+        C c;
+        int r = c.max_length();
+        assert(r == 4);
+    }
+    {
+        typedef std::codecvt_utf16<char32_t, 0xFFFFFFFF, std::consume_header> C;
+        C c;
+        int r = c.max_length();
+        assert(r == 6);
+    }
+}