#ifndef _STDLIB_H_
#define _STDLIB_H_

#include <stddef.h>

#define RAND_MAX 65535
#ifndef NULL
#define NULL ((void*)0)
#endif

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

typedef struct {
    int quot;
    int rem;
} div_t;

typedef struct {
    long quot;
    long rem;
} ldiv_t;

typedef struct {
    long long quot;
    long long rem;
} lldiv_t;

static inline div_t div(int num, int den)
{
    return (div_t) { num / den, num % den };
}

static inline ldiv_t ldiv(long num, long den)
{
    return (ldiv_t) { num / den, num % den };
}

static inline lldiv_t lldiv(long long num, long long den)
{
    return (lldiv_t) { num / den, num % den };
}

extern void* _FUNC(malloc)(size_t size);
extern void* _FUNC(calloc)(size_t num, size_t size);
extern void* _FUNC(realloc)(void* ptr, size_t newsize);
extern void _FUNC(free)(void* ptr);

extern long int _FUNC(strtol)(const char* str, char** endptr, int base);

extern void _FUNC(exit)(int status);

extern void _FUNC(srand)(unsigned s);
extern int _FUNC(rand)(void);

extern void _FUNC(__assert_fail)(const char* expr, const char* file, int line, const char* func);
extern void _FUNC(qsort)(void* base0, size_t n, size_t size, int (*compar)(const void*, const void*));

extern double _FUNC(strtod)(const char* s, char** sret);
extern double _FUNC(atof)(const char* ascii);

extern int _FUNC(atoi)(const char* s);
extern long _FUNC(atol)(const char*);
extern long long _FUNC(atoll)(const char*);
extern void _FUNC(itoa)(int n, char* s);

extern int _FUNC(abs)(int);
extern long _FUNC(labs)(long);
extern long long _FUNC(llabs)(long long);

#endif
