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#ifndef UTIL_H
#define UTIL_H
#define ARRAY_LEN(first, ...) \
(sizeof(((typeof(first) []){first, __VA_ARGS__}))/(sizeof(typeof(first))))
#define bool_equal(a,b) ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
((_a) ? (_b) : (!(_b))); \
})
#endif
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