#ifndef _DLL_H_59726161_
#define _DLL_H_59726161_

/* This file is in the public domain. */

#define DLL_LINK_HEAD(e,r) do {						\
	e->flink = r; if (e->flink) e->flink->blink = e;		\
	e->blink = 0;							\
	r = e;								\
			} while (0)

#define DLL_UNLINK(e,r) do {						\
	if (e->flink) e->flink->blink = e->blink;			\
	if (e->blink) e->blink->flink = e->flink; else r = e->flink;	\
			} while (0)

#endif