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