| 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 | // <stddef.h> |
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| 10 | |
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| 11 | #include <stddef.h> |
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| 12 | |
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| 13 | #include "test_macros.h" |
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| 14 | |
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| 15 | void use() { |
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| 16 | // Make sure we can use the following types without including anything else |
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| 17 | (void)sizeof(size_t); |
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| 18 | (void)sizeof(ptrdiff_t); |
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| 19 | #if TEST_STD_VER >= 11 |
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| 20 | (void)sizeof(nullptr); |
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| 21 | (void)sizeof(nullptr_t); |
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| 22 | (void)sizeof(max_align_t); |
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| 23 | #endif |
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| 24 | } |
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| 25 | |
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| 26 | #ifndef NULL |
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| 27 | #error NULL not defined |
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| 28 | #endif |
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| 29 | |
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| 30 | #ifndef offsetof |
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| 31 | #error offsetof not defined |
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| 32 | #endif |
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| 33 | |
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| 34 | #include <type_traits> |
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| 35 | |
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| 36 | static_assert(sizeof(size_t) == sizeof(void*), "" ); |
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| 37 | static_assert(std::is_unsigned<size_t>::value, "" ); |
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| 38 | static_assert(std::is_integral<size_t>::value, "" ); |
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| 39 | static_assert(sizeof(ptrdiff_t) == sizeof(void*), "" ); |
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| 40 | static_assert(std::is_signed<ptrdiff_t>::value, "" ); |
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| 41 | static_assert(std::is_integral<ptrdiff_t>::value, "" ); |
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| 42 | static_assert((std::is_same<decltype(nullptr), nullptr_t>::value), "" ); |
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| 43 | static_assert(sizeof(nullptr_t) == sizeof(void*), "" ); |
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| 44 | #if TEST_STD_VER >= 11 |
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| 45 | # if TEST_STD_VER >= 20 |
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| 46 | // P0767R1 and P3247R2 |
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| 47 | static_assert(std::is_trivially_copyable<max_align_t>::value, "" ); |
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| 48 | static_assert(std::is_trivially_default_constructible<max_align_t>::value, "" ); |
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| 49 | static_assert(std::is_standard_layout<max_align_t>::value, "" ); |
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| 50 | # else |
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| 51 | static_assert(std::is_pod<max_align_t>::value, "" ); |
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| 52 | # endif |
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| 53 | static_assert(std::alignment_of<max_align_t>::value >= std::alignment_of<long long>::value, "" ); |
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| 54 | static_assert(std::alignment_of<max_align_t>::value >= std::alignment_of<long double>::value, "" ); |
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| 55 | static_assert(std::alignment_of<max_align_t>::value >= std::alignment_of<void*>::value, "" ); |
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| 56 | #endif // TEST_STD_VER >= 11 |
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| 57 | |
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