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#define CONCAT(a, b) a##b
#define CONCAT2(a, b) CONCAT(a, b)
#define STATIC_ASSERT(condition) \
int CONCAT2(some_array, __LINE__)[(condition) ? 1 : -1]
#ifdef __GNUC__
// gcc mode attribute
typedef unsigned char uchar;
uchar int8 __attribute__ ((__mode__ (__QI__))),
int16 __attribute__ ((__mode__ (__HI__))),
int32 __attribute__ ((__mode__ (__SI__))),
int64 __attribute__ ((__mode__ (__DI__)));
int byte_int __attribute__ ((__mode__(__byte__)));
int word_int __attribute__ ((__mode__(__word__)));
int pointer_int __attribute__ ((__mode__(__pointer__)));
STATIC_ASSERT(sizeof(int8)==1);
STATIC_ASSERT(sizeof(int16)==2);
STATIC_ASSERT(sizeof(int32)==4);
STATIC_ASSERT(sizeof(int64)==8);
STATIC_ASSERT(sizeof(byte_int)==1);
STATIC_ASSERT(sizeof(word_int)==sizeof(long int));
STATIC_ASSERT(sizeof(pointer_int)==sizeof(void *));
// gcc vector attribute
uchar v1 __attribute__ ((vector_size (1))),
v2 __attribute__ ((vector_size (2))),
v4 __attribute__ ((vector_size (4)));
STATIC_ASSERT(sizeof(v1)==1);
STATIC_ASSERT(sizeof(v2)==2);
STATIC_ASSERT(sizeof(v4)==4);
#endif
int main()
{
}
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