dtwalk.c revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#include "dthdr.h"
/* Walk a dictionary and all dictionaries viewed through it.
** userf: user function
**
** Written by Kiem-Phong Vo (5/25/96)
*/
#if __STD_C
int dtwalk(reg Dt_t* dt, int (*userf)(Dt_t*, Void_t*, Void_t*), Void_t* data)
#else
int dtwalk(dt,userf,data)
reg Dt_t* dt;
int(* userf)();
Void_t* data;
#endif
{
reg Void_t *obj, *next;
reg Dt_t* walk;
reg int rv;
for(obj = dtfirst(dt); obj; )
{ if(!(walk = dt->walk) )
walk = dt;
next = dtnext(dt,obj);
if((rv = (*userf)(walk, obj, data )) < 0)
return rv;
obj = next;
}
return 0;
}