#ifndef _STDLIB_H
#define _STDLIB_H

typedef unsigned int size_t;

void  *malloc(size_t n);
void  *calloc(size_t nmemb, size_t size);
void  *realloc(void *ptr, size_t n);
void   free(void *p);

int    abs(int n);
long   labs(long n);
int    atoi(const char *s);
long   atol(const char *s);
long   long llabs(long long n);

long   strtol (const char *nptr, char **endptr, int base);
unsigned long strtoul(const char *nptr, char **endptr, int base);

typedef int (*__cmp_fn)(const void *, const void *);
void   qsort  (void *base, size_t nmemb, size_t size, __cmp_fn cmp);
void  *bsearch(const void *key, const void *base, size_t nmemb,
               size_t size, __cmp_fn cmp);

void   exit(int code) __attribute__((noreturn));
void   abort(void)    __attribute__((noreturn));

typedef void (*__atexit_fn)(void);
int    atexit(__atexit_fn fn);

#define EXIT_SUCCESS 0
#define EXIT_FAILURE 1

#endif