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comparison gcc/testsuite/c-c++-common/builtin-offsetof.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 // Contributed by Dodji Seketeli <dodji@redhat.com>
2 // Origin PR c++/38699
3 // { dg-options "-Warray-bounds" }
4 // { dg-do compile }
5
6 struct A
7 {
8 const char *p;
9 };
10
11 struct B
12 {
13 char p[10];
14 struct A a;
15 };
16
17 void
18 f0 ()
19 {
20 __builtin_offsetof(struct A, p); // OK
21 __builtin_offsetof(struct A, p[0]); // { dg-error "non constant address" }
22 __builtin_offsetof(struct B, p[0]); // OK
23 __builtin_offsetof(struct B, p[9]); // OK
24 __builtin_offsetof(struct B, p[10]); // OK
25 __builtin_offsetof(struct B, p[11]); // { dg-warning "greater than size" }
26 __builtin_offsetof(struct B, a.p); // OK
27 __builtin_offsetof(struct B, p[0]); // OK
28 __builtin_offsetof(struct B, a.p[0]); // { dg-error "non constant address" }
29 }