49 lines
1.3 KiB
C++
49 lines
1.3 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_const
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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_const()
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{
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static_assert(!std::is_const<T>::value, "");
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static_assert( std::is_const<const T>::value, "");
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static_assert(!std::is_const<volatile T>::value, "");
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static_assert( std::is_const<const volatile T>::value, "");
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#if TEST_STD_VER > 14
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static_assert(!std::is_const_v<T>, "");
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static_assert( std::is_const_v<const T>, "");
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static_assert(!std::is_const_v<volatile T>, "");
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static_assert( std::is_const_v<const volatile T>, "");
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#endif
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}
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struct A; // incomplete
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int main()
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{
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test_is_const<void>();
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test_is_const<int>();
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test_is_const<double>();
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test_is_const<int*>();
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test_is_const<const int*>();
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test_is_const<char[3]>();
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test_is_const<char[]>();
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test_is_const<A>();
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static_assert(!std::is_const<int&>::value, "");
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static_assert(!std::is_const<const int&>::value, "");
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}
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