void or_die(int b, const char* msg);
void* malloc_or_die(size_t);
void* realloc_or_die(void*, size_t);
FILE* fopen_or_die(const char*, const char*);
void or_die(int b, const char* msg);
void* malloc_or_die(size_t);
void* realloc_or_die(void*, size_t);
FILE* fopen_or_die(const char*, const char*);