usr/src/lib/libast/common/cdt/dtwalk.c

   1 /***********************************************************************
   2 *                                                                      *
   3 *               This software is part of the ast package               *
   4 *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
   5 *                      and is licensed under the                       *
   6 *                  Common Public License, Version 1.0                  *
   7 *                    by AT&T Intellectual Property                     *
   8 *                                                                      *
   9 *                A copy of the License is available at                 *
  10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
  11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
  12 *                                                                      *
  13 *              Information and Software Systems Research               *
  14 *                            AT&T Research                             *
  15 *                           Florham Park NJ                            *
  16 *                                                                      *
  17 *                 Glenn Fowler <gsf@research.att.com>                  *
  18 *                  David Korn <dgk@research.att.com>                   *
  19 *                   Phong Vo <kpv@research.att.com>                    *
  20 *                                                                      *
  21 ***********************************************************************/
  22 #include        "dthdr.h"
  23
  24 /*      Walk a dictionary and all dictionaries viewed through it.
  25 **      userf:  user function
  26 **
  27 **      Written by Kiem-Phong Vo (5/25/96)
  28 */
  29
  30 #if __STD_C
  31 int dtwalk(reg Dt_t* dt, int (*userf)(Dt_t*, Void_t*, Void_t*), Void_t* data)
  32 #else
  33 int dtwalk(dt,userf,data)
  34 reg Dt_t*       dt;
  35 int(*           userf)();
  36 Void_t*         data;
  37 #endif
  38 {
  39         reg Void_t      *obj, *next;
  40         reg Dt_t*       walk;
  41         reg int         rv;
  42
  43         for(obj = dtfirst(dt); obj; )
  44         {       if(!(walk = dt->walk) )
  45                         walk = dt;
  46                 next = dtnext(dt,obj);
  47                 if((rv = (*userf)(walk, obj, data )) < 0)
  48                         return rv;
  49                 obj = next;
  50         }
  51         return 0;
  52 }