63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
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// RUN: %clang_cc1 -std=c++11 -triple i386-apple-darwin9 -fsyntax-only -verify %s
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// expected-no-diagnostics
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using size_t = decltype(sizeof(0));
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struct complex_double {
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double real;
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double imag;
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};
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template <typename T, size_t ABI, size_t Preferred>
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struct check_alignment {
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using type = T;
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static type value;
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static_assert(__alignof__(value) == Preferred, "__alignof__(value) != Preferred");
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static_assert(__alignof__(type) == Preferred, "__alignof__(type) != Preferred");
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static_assert(alignof(type) == ABI, "alignof(type) != ABI");
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};
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// PR3433
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template struct check_alignment<double, 4, 8>;
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template struct check_alignment<long long, 4, 8>;
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template struct check_alignment<unsigned long long, 4, 8>;
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template struct check_alignment<complex_double, 4, 4>;
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// PR6362
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struct __attribute__((packed))
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packed_struct {
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unsigned int a;
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} g_packedstruct;
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template struct check_alignment<packed_struct, 1, 1>;
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static_assert(__alignof__(g_packedstruct.a) == 1, "__alignof__(packed_struct.member) != 1");
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template struct check_alignment<double[3], 4, 8>;
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enum big_enum { x = 18446744073709551615ULL };
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template struct check_alignment<big_enum, 4, 8>;
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// PR5637
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#define ALIGNED(x) __attribute__((aligned(x)))
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typedef ALIGNED(2) struct {
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char a[3];
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} aligned_before_struct;
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static_assert(sizeof(aligned_before_struct) == 3, "");
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static_assert(sizeof(aligned_before_struct[1]) == 4, "");
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static_assert(sizeof(aligned_before_struct[2]) == 6, "");
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static_assert(sizeof(aligned_before_struct[2][1]) == 8, "");
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static_assert(sizeof(aligned_before_struct[1][2]) == 6, "");
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typedef struct ALIGNED(2) {
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char a[3];
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} aligned_after_struct;
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static_assert(sizeof(aligned_after_struct) == 4, "");
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static_assert(sizeof(aligned_after_struct[1]) == 4, "");
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static_assert(sizeof(aligned_after_struct[2]) == 8, "");
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static_assert(sizeof(aligned_after_struct[2][1]) == 8, "");
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static_assert(sizeof(aligned_after_struct[1][2]) == 8, "");
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