1 files changed, 48 insertions, 0 deletions
diff --git a/libcxx/test/utilities/intseq/intseq.intseq/integer_seq.pass.cpp b/libcxx/test/utilities/intseq/intseq.intseq/integer_seq.pass.cpp
new file mode 100644
index 00000000000..a795e90c41e
--- /dev/null
+++ b/libcxx/test/utilities/intseq/intseq.intseq/integer_seq.pass.cpp
@@ -0,0 +1,48 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <utility>
+
+// template<class T, T... I>
+// struct integer_sequence
+// {
+//     typedef T type;
+// 
+//     static constexpr size_t size() noexcept;
+// };
+
+#include <utility>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+
+//  Make a few of sequences
+    using int3    = std::integer_sequence<int, 3, 2, 1>;
+    using size1   = std::integer_sequence<size_t, 7>;
+    using ushort2 = std::integer_sequence<unsigned short, 4, 6>;
+    using bool0   = std::integer_sequence<bool>;
+    
+//  Make sure they're what we expect
+    static_assert ( std::is_same<int3::value_type, int>::value, "int3 type wrong" );
+    static_assert ( int3::size() == 3, "int3 size wrong" );
+    
+    static_assert ( std::is_same<size1::value_type, size_t>::value, "size1 type wrong" );
+    static_assert ( size1::size() == 1, "size1 size wrong" );
+    
+    static_assert ( std::is_same<ushort2::value_type, unsigned short>::value, "ushort2 type wrong" );
+    static_assert ( ushort2::size() == 2, "ushort2 size wrong" );
+    
+    static_assert ( std::is_same<bool0::value_type, bool>::value, "bool0 type wrong" );
+    static_assert ( bool0::size() == 0, "bool0 size wrong" );
+    
+#endif  // _LIBCPP_STD_VER > 11
+}