1/* { dg-do run { target { pcc_bitfield_type_matters || default_packed } } } */
2
3/* Check bitfields and non-bitfields are aligned & sized similarly.
4
5   Copyright (C) 2002 Free Software Foundation Inc
6   Contributed by Nathan Sidwell <nathan@codesourcery.com>
7*/
8
9#include <limits.h>
10#include <stdio.h>
11
12static int fail;
13
14#define CHECK1(N, T) do { \
15  typedef struct Field_##N { char c; T f; } Field_##N; \
16  typedef struct BitField_##N { char c; T f : sizeof (T) * CHAR_BIT; } BitField_##N; \
17  if (sizeof (Field_##N) != sizeof (BitField_##N)) { \
18    fail = 1; printf ("sizeof %s failed\n", #T); \
19  } \
20  if (__alignof__ (Field_##N) != __alignof__ (BitField_##N)) { \
21    fail = 1; printf ("__alignof__ %s failed\n", #T); \
22  } \
23} while (0)
24
25#define CHECK(N, T) do { \
26  CHECK1(N, T); \
27  CHECK1 (s##N, signed T); \
28  CHECK1 (u##N, unsigned T); \
29} while (0)
30
31int main ()
32{
33
34  CHECK (c, char);
35  CHECK (s, short);
36  CHECK (i, int);
37  CHECK (l, long);
38  CHECK (ll, long long);
39
40  return fail;
41}
42