1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2014-2023 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#include <stddef.h>
19#define SIZE 5
20
21struct foo
22{
23  int a;
24};
25
26typedef struct bar
27{
28  int x;
29  struct foo y;
30} BAR;
31
32void
33vla_factory (int n)
34{
35  struct vla_struct
36  {
37    int something;
38    int vla_field[n];
39  };
40  /* Define a typedef for a VLA structure.  */
41  typedef struct vla_struct vla_struct_typedef;
42  vla_struct_typedef vla_struct_object;
43
44  struct inner_vla_struct
45  {
46    int something;
47    int vla_field[n];
48    int after;
49  } inner_vla_struct_object;
50
51  /* Define a structure which uses a typedef for the VLA field
52     to make sure that GDB creates the proper type for this field,
53     preventing a possible assertion failure (see gdb/21356).  */
54  struct vla_struct_typedef_struct_member
55  {
56    int something;
57    vla_struct_typedef vla_object;
58  } vla_struct_typedef_struct_member_object;
59
60  union vla_union
61  {
62    int vla_field[n];
63  } vla_union_object;
64
65  /* Like vla_struct_typedef_struct_member but a union type.  */
66  union vla_struct_typedef_union_member
67  {
68    int something;
69    vla_struct_typedef vla_object;
70  } vla_struct_typedef_union_member_object;
71  int i;
72
73  vla_struct_object.something = n;
74  inner_vla_struct_object.something = n;
75  inner_vla_struct_object.after = n;
76  vla_struct_typedef_struct_member_object.something = n * 2;
77  vla_struct_typedef_struct_member_object.vla_object.something = n * 3;
78  vla_struct_typedef_union_member_object.vla_object.something = n + 1;
79
80  for (i = 0; i < n; i++)
81    {
82      vla_struct_object.vla_field[i] = i*2;
83      vla_union_object.vla_field[i] = i*2;
84      inner_vla_struct_object.vla_field[i] = i*2;
85      vla_struct_typedef_struct_member_object.vla_object.vla_field[i]
86	= i * 3;
87      vla_struct_typedef_union_member_object.vla_object.vla_field[i]
88	= i * 3 - 1;
89    }
90
91  size_t vla_struct_object_size
92    = sizeof(vla_struct_object);          /* vlas_filled */
93  size_t vla_union_object_size = sizeof(vla_union_object);
94  size_t inner_vla_struct_object_size = sizeof(inner_vla_struct_object);
95
96  return;                                 /* break_end_of_vla_factory */
97}
98
99int
100main (void)
101{
102  vla_factory(SIZE);
103  return 0;
104}
105