58 lines
2.0 KiB
C++
58 lines
2.0 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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// <array>
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// tuple_element<I, array<T, N> >::type
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#include <array>
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#include <type_traits>
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#include "test_macros.h"
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template <class T>
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void test()
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{
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{
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typedef T Exp;
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typedef std::array<T, 3> C;
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static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
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}
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{
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typedef T const Exp;
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typedef std::array<T, 3> const C;
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static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
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}
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{
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typedef T volatile Exp;
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typedef std::array<T, 3> volatile C;
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static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
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}
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{
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typedef T const volatile Exp;
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typedef std::array<T, 3> const volatile C;
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static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
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static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
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}
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}
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int main(int, char**)
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{
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test<double>();
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test<int>();
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return 0;
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}
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