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Like this? (a bigger size_t is OK for this test)
extern void abort (void);
extern void exit (int);
typedef __SIZE_TYPE__ size_t;
int
main (void)
{
int a = 0;
int *p;
size_t b;
if (sizeof (size_t) < sizeof (int *))
exit (0);
b = (size_t)(p = &(int []){0, 1, 2}[++a]);
if (a != 1 || *p != 1 || *(int *)b != 1)
abort ();
exit (0);
}
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