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#ifndef UTIL_H_
#define UTIL_H_
#include <stdint.h>
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define BUILD_BUG_ON(x) ((void)sizeof(char[1 - 2 * !!(x)]))
typedef _Bool bool;
#define true ((bool)(!!1))
#define false ((bool)(!!0))
#endif /* UTIL_H_ */
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