#ifndef STDLIB_H
#define STDLIB_H

extern unsigned long strtoul ( const char *p, char **endp, int base );
extern void * realloc ( void *old_ptr, size_t new_size );
extern void * malloc ( size_t size );
extern void free ( void *ptr );
extern int system ( const char *command );
extern long int random ( void );

extern void * _calloc ( size_t len );

/**
 * Allocate cleared memory
 *
 * @v nmemb		Number of members
 * @v size		Size of each member
 * @ret ptr		Allocated memory
 *
 * Allocate memory as per malloc(), and zero it.
 *
 * This is implemented as a static inline, with the body of the
 * function in _calloc(), since in most cases @c nmemb will be 1 and
 * doing the multiply is just wasteful.
 */
static inline void * calloc ( size_t nmemb, size_t size ) {
	return _calloc ( nmemb * size );
}

#endif /* STDLIB_H */