| //===----------------------------------------------------------------------===// |
| // |
| // 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; |
| // }; |
| |
| // This test is a conforming extension. The extension turns undefined behavior |
| // into a compile-time error. |
| |
| #include <utility> |
| |
| int main() |
| { |
| #if _LIBCPP_STD_VER > 11 |
| |
| // Should fail to compile, since float is not an integral type |
| using floatmix = std::integer_sequence<float>; |
| floatmix::value_type I; |
| |
| #else |
| |
| X |
| |
| #endif // _LIBCPP_STD_VER > 11 |
| } |
