1 files changed, 50 insertions, 0 deletions
diff --git a/libcxx/test/std/input.output/iostream.format/std.manip/setw.pass.cpp b/libcxx/test/std/input.output/iostream.format/std.manip/setw.pass.cpp
new file mode 100644
index 00000000000..9bd96984e5c
--- /dev/null
+++ b/libcxx/test/std/input.output/iostream.format/std.manip/setw.pass.cpp
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <iomanip>
+
+// T6 setw(int n);
+
+#include <iomanip>
+#include <cassert>
+
+template <class CharT>
+struct testbuf
+    : public std::basic_streambuf<CharT>
+{
+    testbuf() {}
+};
+
+int main()
+{
+    {
+        testbuf<char> sb;
+        std::istream is(&sb);
+        is >> std::setw(10);
+        assert(is.width() == 10);
+    }
+    {
+        testbuf<char> sb;
+        std::ostream os(&sb);
+        os << std::setw(10);
+        assert(os.width() == 10);
+    }
+    {
+        testbuf<wchar_t> sb;
+        std::wistream is(&sb);
+        is >> std::setw(10);
+        assert(is.width() == 10);
+    }
+    {
+        testbuf<wchar_t> sb;
+        std::wostream os(&sb);
+        os << std::setw(10);
+        assert(os.width() == 10);
+    }
+}