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  • Committer: Bazaar Package Importer
  • Author(s): Stephen M Moraco
  • Date: 2002-02-05 18:52:12 UTC
  • Revision ID: james.westby@ubuntu.com-20020205185212-8i04c70te00rc40y
Tags: upstream-1.7.16
Import upstream version 1.7.16

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cdt/dtextract.c
 
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/*
 
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    This software may only be used by you under license from AT&T Corp.
 
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    ("AT&T").  A copy of AT&T's Source Code Agreement is available at
 
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    AT&T's Internet website having the URL:
 
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    <http://www.research.att.com/sw/tools/graphviz/license/source.html>
 
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    If you received this software without first entering into a license
 
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    with AT&T, you have an infringing copy of this software and cannot use
 
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    it without violating AT&T's intellectual property rights.
 
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*/
 
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#include        "dthdr.h"
 
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#ifdef DMALLOC
 
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#include "dmalloc.h"
 
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#endif
 
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/*      Extract objects of a dictionary.
 
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**
 
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**      Written by Kiem-Phong Vo (5/25/96).
 
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*/
 
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#if __STD_C
 
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Dtlink_t* dtextract(reg Dt_t* dt)
 
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#else
 
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Dtlink_t* dtextract(dt)
 
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reg Dt_t*       dt;
 
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#endif
 
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{
 
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        reg Dtlink_t    *list, **s, **ends;
 
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        if(dt->data->type&(DT_OSET|DT_OBAG) )
 
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                list = dt->data->here;
 
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        else if(dt->data->type&(DT_SET|DT_BAG))
 
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        {       list = dtflatten(dt);
 
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                for(ends = (s = dt->data->htab) + dt->data->ntab; s < ends; ++s)
 
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                        *s = NIL(Dtlink_t*);
 
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        }
 
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        else /*if(dt->data->type&(DT_LIST|DT_STACK|DT_QUEUE))*/
 
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        {       list = dt->data->head;
 
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                dt->data->head = NIL(Dtlink_t*);
 
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        }
 
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        dt->data->type &= ~DT_FLATTEN;
 
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        dt->data->size = 0;
 
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        dt->data->here = NIL(Dtlink_t*);
 
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        return list;
 
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}