1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // UNSUPPORTED: c++98, c++03, c++11
11
12 // <experimental/tuple>
13
14 // template <class T> constexpr size_t tuple_size_v = tuple_size<T>::value;
15
16 // Test with reference
17
18 #include <experimental/tuple>
19
20 namespace ex = std::experimental;
21
main()22 int main()
23 {
24 auto x = ex::tuple_size_v<std::tuple<> &>;
25 }
26