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75 lines
2.0 KiB
C++
75 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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// type_traits
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// is_same
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#include <type_traits>
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#include "test_macros.h"
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template <class T, class U>
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void test_is_same()
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{
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static_assert(( std::is_same<T, U>::value), "");
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static_assert((!std::is_same<const T, U>::value), "");
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static_assert((!std::is_same<T, const U>::value), "");
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static_assert(( std::is_same<const T, const U>::value), "");
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#if TEST_STD_VER > 14
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static_assert(( std::is_same_v<T, U>), "");
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static_assert((!std::is_same_v<const T, U>), "");
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static_assert((!std::is_same_v<T, const U>), "");
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static_assert(( std::is_same_v<const T, const U>), "");
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#endif
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}
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template <class T, class U>
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void test_is_same_ref()
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{
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static_assert((std::is_same<T, U>::value), "");
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static_assert((std::is_same<const T, U>::value), "");
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static_assert((std::is_same<T, const U>::value), "");
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static_assert((std::is_same<const T, const U>::value), "");
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#if TEST_STD_VER > 14
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static_assert((std::is_same_v<T, U>), "");
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static_assert((std::is_same_v<const T, U>), "");
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static_assert((std::is_same_v<T, const U>), "");
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static_assert((std::is_same_v<const T, const U>), "");
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#endif
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}
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template <class T, class U>
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void test_is_not_same()
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{
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static_assert((!std::is_same<T, U>::value), "");
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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(int, char**)
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{
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test_is_same<int, int>();
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test_is_same<void, void>();
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test_is_same<Class, Class>();
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test_is_same<int*, int*>();
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test_is_same_ref<int&, int&>();
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test_is_not_same<int, void>();
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test_is_not_same<void, Class>();
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test_is_not_same<Class, int*>();
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test_is_not_same<int*, int&>();
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test_is_not_same<int&, int>();
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return 0;
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}
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