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annotate gcc/testsuite/gcc.dg/c99-const-expr-9.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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111
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1 /* Test for constant expressions: __builtin_offsetof allowed in
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2 integer constant expressions but not traditional offsetof
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3 expansion. */
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4 /* Origin: Joseph Myers <joseph@codesourcery.com> */
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5 /* { dg-do compile } */
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6 /* { dg-options "-std=iso9899:1999 -pedantic-errors -ftrack-macro-expansion=0" } */
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7
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8 struct s {
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9 int a;
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10 };
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11
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12 struct t {
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13 struct s a;
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14 int b[2];
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15 };
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16
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17 #define old_offsetof(TYPE, MEMBER) ((__SIZE_TYPE__)(__UINTPTR_TYPE__) &((TYPE *)0)->MEMBER)
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18
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19 enum e {
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20 E1 = old_offsetof (struct s, a), /* { dg-error "constant" } */
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21 E2 = old_offsetof (struct t, a.a), /* { dg-error "constant" } */
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22 E3 = old_offsetof (struct t, b[1]), /* { dg-error "constant" } */
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23 E4 = __builtin_offsetof (struct s, a),
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24 E5 = __builtin_offsetof (struct t, a.a),
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25 E6 = __builtin_offsetof (struct t, b[1])
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26 };