| 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 | // Regression test for https://llvm.org/PR38601 |
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| 10 | |
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| 11 | // UNSUPPORTED: c++03 |
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| 12 | |
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| 13 | #include <cassert> |
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| 14 | #include <tuple> |
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| 15 | |
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| 16 | using Base = std::tuple<int, int>; |
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| 17 | |
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| 18 | struct Derived : Base { |
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| 19 | template <class ...Ts> |
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| 20 | Derived(int x, Ts... ts): Base(ts...), x_(x) { } |
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| 21 | operator int () const { return x_; } |
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| 22 | int x_; |
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| 23 | }; |
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| 24 | |
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| 25 | int main(int, char**) { |
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| 26 | Derived d(1, 2, 3); |
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| 27 | Base b = static_cast<Base>(d); |
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| 28 | assert(std::get<0>(b) == 2); |
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| 29 | assert(std::get<1>(b) == 3); |
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| 30 | return 0; |
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| 31 | } |
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| 32 | |
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