#include <stdio.h>
void * _NSConcreteStackBlock;
void _Block_byref_assign_copy(void * dst, void *src){}
void _Block_byref_release(void*src){}
extern "C" void exit(int);
enum numbers
{
zero, one, two, three
};
typedef enum numbers (^myblock)(enum numbers);
enum numbers test(myblock I) {
return I(three);
}
int main() {
__block enum numbers x = one;
__block enum numbers y = two;
enum numbers res = test(^(enum numbers z){ y = z; return x; });
if (x != one || y != three || res != one)
exit(1);
res = test(^(enum numbers z){ x = z; return x; });
if (x != three || res != three)
exit(1);
return 0;
}