| /* { dg-do run } */ |
| /* { dg-options "" } */ |
| |
| /* Check bitfields and non-bitfields are aligned & sized similarly. |
| |
| Copyright (C) 2002 Free Software Foundation Inc |
| Contributed by Nathan Sidwell <nathan@codesourcery.com> |
| */ |
| |
| #include <limits.h> |
| #include <stdio.h> |
| |
| static int fail; |
| |
| #define CHECK1(N, T) do { \ |
| typedef struct Field_##N { char c; T f; } Field_##N; \ |
| typedef struct BitField_##N { char c; T f : sizeof (T) * CHAR_BIT; } BitField_##N; \ |
| if (sizeof (Field_##N) != sizeof (BitField_##N)) { \ |
| fail = 1; printf ("sizeof %s failed\n", #T); \ |
| } \ |
| if (__alignof__ (Field_##N) != __alignof__ (BitField_##N)) { \ |
| fail = 1; printf ("__alignof__ %s failed\n", #T); \ |
| } \ |
| } while (0) |
| |
| #define CHECK(N, T) do { \ |
| CHECK1(N, T); \ |
| CHECK1 (s##N, signed T); \ |
| CHECK1 (u##N, unsigned T); \ |
| } while (0) |
| |
| int main () |
| { |
| |
| CHECK (c, char); |
| CHECK (s, short); |
| CHECK (i, int); |
| CHECK (l, long); |
| CHECK (ll, long long); |
| |
| return fail; |
| } |