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1 // There were two related problems here, depending on the vintage. At
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2 // one time:
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3 //
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4 // typedef struct A { ... } A __attribute__ ((aligned (16)));
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5 //
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6 // would cause original_types to go into an infinite loop. At other
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7 // times, the attributes applied to an explicit typedef would be lost
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8 // (check_b3 would have a negative size).
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9
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10 // First check that the declaration is accepted and has an effect.
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11 typedef struct A { int i; } A __attribute__ ((aligned (16)));
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12 int check_A[__alignof__ (A) >= 16 ? 1 : -1];
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13
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14 // Check that the alignment is only applied to the typedef.
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15 struct B { int i; };
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16 struct B b1;
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17 typedef struct B B __attribute__((aligned (16)));
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18 struct B b2;
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19 B b3;
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20 int check_b1[__alignof__ (b1) == __alignof__ (b2) ? 1 : -1];
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21 int check_b3[__alignof__ (b3) >= 16 ? 1 : -1];
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