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typedef __SIZE_TYPE__ Size_t;
#if __SIZEOF_LONG__ < __SIZEOF_POINTER__
#define bufsize ((1LL << (8 * sizeof(Size_t) - 2))-256)
#else
#define bufsize ((1L << (8 * sizeof(Size_t) - 2))-256)
#endif
struct huge_struct
{
short buf[bufsize];
int a;
int b;
int c;
int d;
};
union huge_union
{
int a;
char buf[bufsize];
};
Size_t union_size()
{
return sizeof(union huge_union);
}
Size_t struct_size()
{
return sizeof(struct huge_struct);
}
Size_t struct_a_offset()
{
return (Size_t)(&((struct huge_struct *) 0)->a);
}
int main()
{
/* Check the exact sizeof value. bufsize is aligned on 256b. */
if (union_size() != sizeof(char) * bufsize)
abort();
if (struct_size() != sizeof(short) * bufsize + 4*sizeof(int))
abort();
if (struct_a_offset() < sizeof(short) * bufsize)
abort();
return 0;
}
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