forked from OSchip/llvm-project
75 lines
2.0 KiB
C++
75 lines
2.0 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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// extent
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#include <type_traits>
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#include "test_macros.h"
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template <class T, unsigned A>
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void test_extent()
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{
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static_assert((std::extent<T>::value == A), "");
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static_assert((std::extent<const T>::value == A), "");
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static_assert((std::extent<volatile T>::value == A), "");
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static_assert((std::extent<const volatile T>::value == A), "");
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#if TEST_STD_VER > 14
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static_assert((std::extent_v<T> == A), "");
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static_assert((std::extent_v<const T> == A), "");
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static_assert((std::extent_v<volatile T> == A), "");
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static_assert((std::extent_v<const volatile T> == A), "");
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#endif
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}
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template <class T, unsigned A>
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void test_extent1()
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{
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static_assert((std::extent<T, 1>::value == A), "");
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static_assert((std::extent<const T, 1>::value == A), "");
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static_assert((std::extent<volatile T, 1>::value == A), "");
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static_assert((std::extent<const volatile T, 1>::value == A), "");
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#if TEST_STD_VER > 14
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static_assert((std::extent_v<T, 1> == A), "");
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static_assert((std::extent_v<const T, 1> == A), "");
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static_assert((std::extent_v<volatile T, 1> == A), "");
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static_assert((std::extent_v<const volatile T, 1> == A), "");
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#endif
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}
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class Class
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{
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public:
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~Class();
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};
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int main()
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{
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test_extent<void, 0>();
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test_extent<int&, 0>();
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test_extent<Class, 0>();
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test_extent<int*, 0>();
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test_extent<const int*, 0>();
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test_extent<int, 0>();
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test_extent<double, 0>();
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test_extent<bool, 0>();
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test_extent<unsigned, 0>();
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test_extent<int[2], 2>();
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test_extent<int[2][4], 2>();
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test_extent<int[][4], 0>();
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test_extent1<int, 0>();
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test_extent1<int[2], 0>();
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test_extent1<int[2][4], 4>();
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test_extent1<int[][4], 4>();
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}
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