/*
** Copyright (c) Massachusetts Institute of Technology 1994-1998.
**          All Rights Reserved.
**          Unpublished rights reserved under the copyright laws of
**          the United States.
**
** THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
** OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
**
** This code is distributed freely and may be used freely under the 
** following conditions:
**
**     1. This notice may not be removed or altered.
**
**     2. Works derived from this code are not distributed for
**        commercial gain without explicit permission from MIT 
**        (for permission contact lclint-request@sds.lcs.mit.edu).
*/

typedef struct _sigNode {
  ltoken tok;
  ltokenList domain; 
  ltoken range;
  unsigned int key;
} *sigNode;

extern /*@only@*/ cstring sigNode_unparse (/*@null@*/ sigNode p_n) /*@*/ ;
extern void sigNode_free (/*@only@*/ /*@null@*/ sigNode p_x);
extern /*@only@*/ sigNode sigNode_copy (sigNode p_s) /*@*/ ;
extern void sigNode_markOwned (/*@owned@*/ sigNode p_n);

