| 1 | // RUN: %check_clang_tidy %s -std=c++14 cert-mem57-cpp %t |
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| 2 | |
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| 3 | namespace std { |
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| 4 | typedef __typeof(sizeof(int)) size_t; |
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| 5 | void *aligned_alloc(size_t, size_t); |
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| 6 | void free(void *); |
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| 7 | } // namespace std |
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| 8 | |
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| 9 | struct alignas(128) Vector1 { |
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| 10 | char elems[128]; |
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| 11 | }; |
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| 12 | |
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| 13 | struct Vector2 { |
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| 14 | char elems[128]; |
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| 15 | }; |
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| 16 | |
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| 17 | struct alignas(128) Vector3 { |
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| 18 | char elems[128]; |
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| 19 | static void *operator new(std::size_t nbytes) noexcept(true) { |
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| 20 | return std::aligned_alloc(alignof(Vector3), nbytes); |
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| 21 | } |
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| 22 | static void operator delete(void *p) { |
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| 23 | std::free(p); |
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| 24 | } |
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| 25 | }; |
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| 26 | |
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| 27 | struct alignas(8) Vector4 { |
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| 28 | char elems[32]; |
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| 29 | }; |
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| 30 | |
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| 31 | void f() { |
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| 32 | auto *V1 = new Vector1; |
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| 33 | // CHECK-MESSAGES: :[[@LINE-1]]:14: warning: allocation function returns a pointer with alignment {{[0-9]+}} but the over-aligned type being allocated requires alignment 128 [cert-mem57-cpp] |
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| 34 | auto *V2 = new Vector2; |
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| 35 | auto *V3 = new Vector3; |
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| 36 | auto *V4 = new Vector4; |
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| 37 | auto *V1_Arr = new Vector1[2]; |
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| 38 | // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: allocation function returns a pointer with alignment {{[0-9]+}} but the over-aligned type being allocated requires alignment 128 [cert-mem57-cpp] |
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| 39 | } |
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| 40 | |
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