| 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 |
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| 10 | |
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| 11 | // <tuple> |
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| 12 | |
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| 13 | // template <class... Types> |
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| 14 | // class tuple_size<tuple<Types...>> |
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| 15 | // : public integral_constant<size_t, sizeof...(Types)> { }; |
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| 16 | |
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| 17 | // Expect failures with a reference type, pointer type, and a non-tuple type. |
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| 18 | |
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| 19 | #include <tuple> |
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| 20 | |
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| 21 | void f() { |
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| 22 | (void)std::tuple_size<std::tuple<> &>::value; // expected-error {{implicit instantiation of undefined template}} |
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| 23 | (void)std::tuple_size<int>::value; // expected-error {{implicit instantiation of undefined template}} |
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| 24 | (void)std::tuple_size<std::tuple<>*>::value; // expected-error {{implicit instantiation of undefined template}} |
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| 25 | } |
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| 26 | |
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