#include <stdio.h>
void * _NSConcreteStackBlock;
#ifdef __cplusplus
extern "C" void exit(int);
#else
extern void exit(int);
#endif
enum numbers {
zero, one, two, three, four
};
typedef enum numbers (^myblock)(enum numbers);
double test(myblock I) {
return I(three);
}
int main() {
__block enum numbers x = one;
__block enum numbers y = two;
myblock CL = ^(enum numbers z)
{ enum numbers savex = x;
{ __block enum numbers x = savex;
y = z;
if (y != three)
exit (6);
test (
^ (enum numbers z) {
if (y != three) {
exit(1);
}
if (x != one)
exit(2);
x = z;
if (x != three)
exit(3);
if (y != three)
exit(4);
return (enum numbers) four;
});}
return x;
};
enum numbers res = (enum numbers)test(CL);
if (res != one)
exit (5);
return 0;
}