54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// RUN: %clang_cc1 -std=gnu++11 -fsyntax-only -verify %s
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namespace attribute_aligned {
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template<int N>
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struct X {
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char c[1] __attribute__((__aligned__((N)))); // expected-error {{alignment is not a power of 2}}
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};
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template <bool X> struct check {
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int check_failed[X ? 1 : -1]; // expected-error {{array with a negative size}}
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};
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template <int N> struct check_alignment {
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typedef check<N == sizeof(X<N>)> t; // expected-note {{in instantiation}}
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};
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check_alignment<1>::t c1;
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check_alignment<2>::t c2;
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check_alignment<3>::t c3; // expected-note 2 {{in instantiation}}
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check_alignment<4>::t c4;
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template<unsigned Size, unsigned Align>
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class my_aligned_storage
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{
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__attribute__((align(Align))) char storage[Size];
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};
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template<typename T>
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class C {
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public:
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C() {
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static_assert(sizeof(t) == sizeof(T), "my_aligned_storage size wrong");
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static_assert(alignof(t) == alignof(T), "my_aligned_storage align wrong"); // expected-warning{{'alignof' applied to an expression is a GNU extension}}
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}
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private:
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my_aligned_storage<sizeof(T), alignof(T)> t;
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};
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C<double> cd;
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}
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namespace PR9049 {
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extern const void *CFRetain(const void *ref);
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template<typename T> __attribute__((cf_returns_retained))
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inline T WBCFRetain(T aValue) { return aValue ? (T)CFRetain(aValue) : (T)0; }
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extern void CFRelease(const void *ref);
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template<typename T>
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inline void WBCFRelease(__attribute__((cf_consumed)) T aValue) { if(aValue) CFRelease(aValue); }
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}
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