1/* { dg-do run { target { pcc_bitfield_type_matters || default_packed } } } */
2/* { dg-options "" } */
3
4/* Check bitfields and non-bitfields are aligned & sized similarly.
5
6   Copyright (C) 2002 Free Software Foundation Inc
7   Contributed by Nathan Sidwell <nathan@codesourcery.com>
8*/
9
10#include <limits.h>
11#include <stdio.h>
12
13static int fail;
14
15#define CHECK1(N, T) do { \
16  typedef struct Field_##N { char c; T f; } Field_##N; \
17  typedef struct BitField_##N { char c; T f : sizeof (T) * CHAR_BIT; } BitField_##N; \
18  if (sizeof (Field_##N) != sizeof (BitField_##N)) { \
19    fail = 1; printf ("sizeof %s failed\n", #T); \
20  } \
21  if (__alignof__ (Field_##N) != __alignof__ (BitField_##N)) { \
22    fail = 1; printf ("__alignof__ %s failed\n", #T); \
23  } \
24} while (0)
25
26#define CHECK(N, T) do { \
27  CHECK1(N, T); \
28  CHECK1 (s##N, signed T); \
29  CHECK1 (u##N, unsigned T); \
30} while (0)
31
32int main ()
33{
34
35  CHECK (c, char);
36  CHECK (s, short);
37  CHECK (i, int);
38  CHECK (l, long);
39  CHECK (ll, long long);
40
41  return fail;
42}
43