| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // type_traits |
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| 10 | |
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| 11 | // alignment_of |
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| 12 | |
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| 13 | #include <type_traits> |
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| 14 | #include <cstdint> |
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| 15 | |
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| 16 | #include "test_macros.h" |
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| 17 | |
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| 18 | template <class T, unsigned A> |
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| 19 | void test_alignment_of() |
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| 20 | { |
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| 21 | const unsigned AlignofResult = TEST_ALIGNOF(T); |
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| 22 | static_assert( AlignofResult == A, "Golden value does not match result of alignof keyword" ); |
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| 23 | static_assert( std::alignment_of<T>::value == AlignofResult, "" ); |
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| 24 | static_assert( std::alignment_of<T>::value == A, "" ); |
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| 25 | static_assert( std::alignment_of<const T>::value == A, "" ); |
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| 26 | static_assert( std::alignment_of<volatile T>::value == A, "" ); |
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| 27 | static_assert( std::alignment_of<const volatile T>::value == A, "" ); |
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| 28 | #if TEST_STD_VER > 14 |
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| 29 | static_assert( std::alignment_of_v<T> == A, "" ); |
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| 30 | static_assert( std::alignment_of_v<const T> == A, "" ); |
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| 31 | static_assert( std::alignment_of_v<volatile T> == A, "" ); |
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| 32 | static_assert( std::alignment_of_v<const volatile T> == A, "" ); |
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| 33 | #endif |
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| 34 | } |
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| 35 | |
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| 36 | class Class |
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| 37 | { |
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| 38 | public: |
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| 39 | ~Class(); |
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| 40 | }; |
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| 41 | |
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| 42 | int main(int, char**) |
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| 43 | { |
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| 44 | test_alignment_of<int&, 4>(); |
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| 45 | test_alignment_of<Class, 1>(); |
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| 46 | test_alignment_of<int*, sizeof(std::intptr_t)>(); |
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| 47 | test_alignment_of<const int*, sizeof(std::intptr_t)>(); |
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| 48 | test_alignment_of<char[3], 1>(); |
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| 49 | test_alignment_of<int, 4>(); |
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| 50 | test_alignment_of<double, TEST_ALIGNOF(double)>(); |
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| 51 | test_alignment_of<bool, 1>(); |
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| 52 | test_alignment_of<unsigned, 4>(); |
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| 53 | |
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| 54 | return 0; |
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| 55 | } |
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| 56 | |
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