52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// Make sure std::array is an aggregate type.
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// We can only check this in C++17 and above, because we don't have the
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// trait before that.
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// UNSUPPORTED: c++03, c++11, c++14
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// libc++ doesn't implement std::is_aggregate on GCC 5 and GCC 6.
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// UNSUPPORTED: libc++ && gcc-5
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// UNSUPPORTED: libc++ && gcc-6
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#include <array>
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#include <type_traits>
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template <typename T>
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void check_aggregate()
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{
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static_assert(std::is_aggregate<std::array<T, 0> >::value, "");
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static_assert(std::is_aggregate<std::array<T, 1> >::value, "");
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static_assert(std::is_aggregate<std::array<T, 2> >::value, "");
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static_assert(std::is_aggregate<std::array<T, 3> >::value, "");
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static_assert(std::is_aggregate<std::array<T, 4> >::value, "");
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}
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struct Empty { };
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struct Trivial { int i; int j; };
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struct NonTrivial {
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int i; int j;
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NonTrivial(NonTrivial const&) { }
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};
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int main(int, char**)
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{
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check_aggregate<char>();
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check_aggregate<int>();
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check_aggregate<long>();
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check_aggregate<float>();
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check_aggregate<double>();
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check_aggregate<long double>();
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check_aggregate<Empty>();
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check_aggregate<Trivial>();
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check_aggregate<NonTrivial>();
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return 0;
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}
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