| 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, c++14, c++17 |
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| 10 | |
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| 11 | // Make sure that std::bit_cast works with std::complex. Test case extracted from |
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| 12 | // https://github.com/llvm/llvm-project/issues/94620. |
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| 13 | |
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| 14 | #include <bit> |
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| 15 | #include <complex> |
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| 16 | |
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| 17 | template <class T> |
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| 18 | constexpr void test() { |
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| 19 | using Complex = std::complex<T>; |
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| 20 | unsigned char data[sizeof(Complex)] = {0}; |
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| 21 | |
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| 22 | [[maybe_unused]] Complex c = std::bit_cast<Complex>(data); |
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| 23 | } |
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| 24 | |
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| 25 | constexpr bool test_all() { |
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| 26 | test<float>(); |
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| 27 | test<double>(); |
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| 28 | test<long double>(); |
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| 29 | return true; |
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| 30 | } |
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| 31 | |
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| 32 | int main(int, char**) { |
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| 33 | test_all(); |
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| 34 | static_assert(test_all()); |
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| 35 | return 0; |
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| 36 | } |
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| 37 | |
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