66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
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//===----------------------------------------------------------------------===//
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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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// aligned_union<size_t Len, class ...Types>
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#include <type_traits>
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int main()
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{
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#ifndef _LIBCPP_HAS_NO_VARIADICS
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{
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typedef std::aligned_union<10, char >::type T1;
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static_assert(std::alignment_of<T1>::value == 1, "");
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static_assert(sizeof(T1) == 10, "");
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}
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{
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typedef std::aligned_union<10, short >::type T1;
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static_assert(std::alignment_of<T1>::value == 2, "");
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static_assert(sizeof(T1) == 10, "");
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}
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{
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typedef std::aligned_union<10, int >::type T1;
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static_assert(std::alignment_of<T1>::value == 4, "");
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static_assert(sizeof(T1) == 12, "");
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}
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{
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typedef std::aligned_union<10, double >::type T1;
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static_assert(std::alignment_of<T1>::value == 8, "");
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static_assert(sizeof(T1) == 16, "");
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}
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{
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typedef std::aligned_union<10, short, char >::type T1;
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static_assert(std::alignment_of<T1>::value == 2, "");
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static_assert(sizeof(T1) == 10, "");
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}
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{
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typedef std::aligned_union<10, char, short >::type T1;
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static_assert(std::alignment_of<T1>::value == 2, "");
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static_assert(sizeof(T1) == 10, "");
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}
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{
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typedef std::aligned_union<2, int, char, short >::type T1;
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static_assert(std::alignment_of<T1>::value == 4, "");
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static_assert(sizeof(T1) == 4, "");
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}
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{
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typedef std::aligned_union<2, char, int, short >::type T1;
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static_assert(std::alignment_of<T1>::value == 4, "");
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static_assert(sizeof(T1) == 4, "");
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}
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{
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typedef std::aligned_union<2, char, short, int >::type T1;
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static_assert(std::alignment_of<T1>::value == 4, "");
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static_assert(sizeof(T1) == 4, "");
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}
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#endif
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}
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