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#ifndef _UTIL_H
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#define _UTIL_H
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#define ERROR(expr, ret, ...) if (expr) { __VA_ARGS__; return ret; }
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void * emalloc(unsigned long int size);
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void * ecalloc(unsigned long int nmemb, unsigned long int size);
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void * erealloc(void *ptr, unsigned long int size);
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void efree(void *ptr);
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void map_file(const unsigned char **str, int *size, const char *path);
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void dump_file(const char *path, char **buf, int *buf_len);
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void print_byte(unsigned char byte);
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void stopwatch_start(void);
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double stopwatch_get(void);
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#endif
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