| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11 |
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| 10 | |
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| 11 | // <utility> |
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| 12 | |
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| 13 | // template<class T, T... I> |
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| 14 | // struct integer_sequence |
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| 15 | // { |
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| 16 | // typedef T type; |
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| 17 | // |
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| 18 | // static constexpr size_t size() noexcept; |
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| 19 | // }; |
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| 20 | |
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| 21 | // This test is a conforming extension. The extension turns undefined behavior |
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| 22 | // into a compile-time error. |
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| 23 | |
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| 24 | #include <utility> |
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| 25 | |
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| 26 | #include "test_macros.h" |
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| 27 | |
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| 28 | int main(int, char**) { |
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| 29 | // Should fail to compile, since float is not an integral type |
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| 30 | using floatmix = std::integer_sequence<float>; |
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| 31 | floatmix::value_type I; |
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| 32 | return 0; |
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| 33 | } |
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| 34 | |
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