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62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// type_traits
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// is_standard_layout
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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_is_standard_layout()
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{
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static_assert( std::is_standard_layout<T>::value, "");
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static_assert( std::is_standard_layout<const T>::value, "");
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static_assert( std::is_standard_layout<volatile T>::value, "");
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static_assert( std::is_standard_layout<const volatile T>::value, "");
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#if TEST_STD_VER > 14
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static_assert( std::is_standard_layout_v<T>, "");
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static_assert( std::is_standard_layout_v<const T>, "");
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static_assert( std::is_standard_layout_v<volatile T>, "");
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static_assert( std::is_standard_layout_v<const volatile T>, "");
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#endif
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}
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template <class T>
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void test_is_not_standard_layout()
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{
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static_assert(!std::is_standard_layout<T>::value, "");
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static_assert(!std::is_standard_layout<const T>::value, "");
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static_assert(!std::is_standard_layout<volatile T>::value, "");
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static_assert(!std::is_standard_layout<const volatile T>::value, "");
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#if TEST_STD_VER > 14
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static_assert(!std::is_standard_layout_v<T>, "");
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static_assert(!std::is_standard_layout_v<const T>, "");
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static_assert(!std::is_standard_layout_v<volatile T>, "");
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static_assert(!std::is_standard_layout_v<const volatile T>, "");
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#endif
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}
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template <class T1, class T2>
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struct pair
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{
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T1 first;
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T2 second;
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};
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int main()
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{
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test_is_standard_layout<int> ();
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test_is_standard_layout<int[3]> ();
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test_is_standard_layout<pair<int, double> > ();
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test_is_not_standard_layout<int&> ();
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}
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