1290001Sglebius/* { dg-do run { target { pcc_bitfield_type_matters || default_packed } } } */ 2290001Sglebius 3290001Sglebius/* Check bitfields and non-bitfields are aligned & sized similarly. 4290001Sglebius 5290001Sglebius Copyright (C) 2002 Free Software Foundation Inc 6290001Sglebius Contributed by Nathan Sidwell <nathan@codesourcery.com> 7290001Sglebius*/ 8290001Sglebius 9290001Sglebius#include <limits.h> 10290001Sglebius#include <stdio.h> 11290001Sglebius 12290001Sglebiusstatic int fail; 13290001Sglebius 14290001Sglebius#define CHECK1(N, T) do { \ 15290001Sglebius typedef struct Field_##N { char c; T f; } Field_##N; \ 16290001Sglebius typedef struct BitField_##N { char c; T f : sizeof (T) * CHAR_BIT; } BitField_##N; \ 17290001Sglebius if (sizeof (Field_##N) != sizeof (BitField_##N)) { \ 18290001Sglebius fail = 1; printf ("sizeof %s failed\n", #T); \ 19290001Sglebius } \ 20290001Sglebius if (__alignof__ (Field_##N) != __alignof__ (BitField_##N)) { \ 21290001Sglebius fail = 1; printf ("__alignof__ %s failed\n", #T); \ 22290001Sglebius } \ 23290001Sglebius} while (0) 24290001Sglebius 25290001Sglebius#define CHECK(N, T) do { \ 26290001Sglebius CHECK1(N, T); \ 27290001Sglebius CHECK1 (s##N, signed T); \ 28290001Sglebius CHECK1 (u##N, unsigned T); \ 29290001Sglebius} while (0) 30290001Sglebius 31290001Sglebiusint main () 32290001Sglebius{ 33290001Sglebius 34290001Sglebius CHECK (c, char); 35290001Sglebius CHECK (s, short); 36290001Sglebius CHECK (i, int); 37290001Sglebius CHECK (l, long); 38290001Sglebius CHECK (ll, long long); 39290001Sglebius 40290001Sglebius return fail; 41290001Sglebius} 42290001Sglebius