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struct list {
struct list *prev, *next;
};
struct array {
void *val;
size_t len, cap;
};
struct mapkey {
uint64_t hash;
const char *str;
size_t len;
};
struct treenode {
uint64_t key;
void *child[2];
int height;
_Bool new; /* set by treeinsert if this node was newly allocated */
};
extern char *argv0;
#define LEN(a) (sizeof(a) / sizeof((a)[0]))
#define ALIGNDOWN(x, n) ((x) & -(n))
#define ALIGNUP(x, n) ALIGNDOWN((x) + (n) - 1, n)
void warn(const char *, ...);
_Noreturn void fatal(const char *fmt, ...);
void *reallocarray(void *, size_t, size_t);
void *xreallocarray(void *, size_t, size_t);
void *xmalloc(size_t);
char *progname(char *, char *);
void listinsert(struct list *, struct list *);
void listremove(struct list *);
#define listelement(list, type, member) (type *)((char *)list - offsetof(type, member))
void *arrayadd(struct array *, size_t);
void arrayaddptr(struct array *, void *);
void arrayaddbuf(struct array *, const void *, size_t);
void *arraylast(struct array *, size_t);
#define arrayforeach(a, m) for (m = (a)->val; m != (void *)((char *)(a)->val + (a)->len); ++m)
/* map */
void mapkey(struct mapkey *, const char *, size_t);
struct map *mkmap(size_t);
void delmap(struct map *, void(void *));
void **mapput(struct map *, struct mapkey *);
void *mapget(struct map *, struct mapkey *);
/* tree */
void *treeinsert(void **, uint64_t, size_t);
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