#ifndef UTIL_H #define UTIL_H #include #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) #define COLD __attribute__((cold)) #define UNUSED __attribute__((unused)) #define EXPORT __attribute__((visibility("default"))) #define STRINGIFY(s) #s #define ALIAS(f) __attribute__((alias(STRINGIFY(f)))) static inline int ffzl(long x) { return __builtin_ffsl(~x); } COLD noreturn void fatal_error(const char *s); #endif