derek.holloway
7502bf64a4
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57 lines
1.9 KiB
C++
57 lines
1.9 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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// <stddef.h>
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#include <stddef.h>
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#include "test_macros.h"
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void use() {
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// Make sure we can use the following types without including anything else
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(void)sizeof(size_t);
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(void)sizeof(ptrdiff_t);
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#if TEST_STD_VER >= 11
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(void)sizeof(nullptr);
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(void)sizeof(nullptr_t);
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(void)sizeof(max_align_t);
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#endif
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}
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#ifndef NULL
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#error NULL not defined
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#endif
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#ifndef offsetof
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#error offsetof not defined
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#endif
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#include <type_traits>
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static_assert(sizeof(size_t) == sizeof(void*), "");
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static_assert(std::is_unsigned<size_t>::value, "");
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static_assert(std::is_integral<size_t>::value, "");
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static_assert(sizeof(ptrdiff_t) == sizeof(void*), "");
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static_assert(std::is_signed<ptrdiff_t>::value, "");
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static_assert(std::is_integral<ptrdiff_t>::value, "");
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static_assert((std::is_same<decltype(nullptr), nullptr_t>::value), "");
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static_assert(sizeof(nullptr_t) == sizeof(void*), "");
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#if TEST_STD_VER >= 11
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# if TEST_STD_VER >= 20
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// P0767R1 and P3247R2
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static_assert(std::is_trivially_copyable<max_align_t>::value, "");
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static_assert(std::is_trivially_default_constructible<max_align_t>::value, "");
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static_assert(std::is_standard_layout<max_align_t>::value, "");
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# else
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static_assert(std::is_pod<max_align_t>::value, "");
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# endif
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static_assert(std::alignment_of<max_align_t>::value >= std::alignment_of<long long>::value, "");
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static_assert(std::alignment_of<max_align_t>::value >= std::alignment_of<long double>::value, "");
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static_assert(std::alignment_of<max_align_t>::value >= std::alignment_of<void*>::value, "");
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#endif // TEST_STD_VER >= 11
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