#ifndef STDLIB_H_
#define STDLIB_H_

#include <stddef.h>

#if defined(__cplusplus)
extern "C" {
#endif

extern _Noreturn void abort(void);
extern _Noreturn void exit(int code);
extern void *malloc(size_t sz);
extern void *realloc(void *ptr, size_t sz);
extern void *calloc(size_t n, size_t sz);
extern void free(void *ptr);

extern int rand(void);
extern void srand(unsigned int seed);

extern int atoi(const char *str);
extern double atof(const char *str);
extern long strtol(const char *str, char **endptr, int base);
extern unsigned long strtoul(const char *str, char **endptr, int base);
extern float strtof(const char *str, char **endptr);
extern double strtod(const char *str, char **endptr);

extern char *getenv(const char *name);
extern int atexit(void(*fn)(void));

#if defined(__cplusplus)
} /* extern "C" */
#endif

#endif