/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 2000-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
#include "ptlib.h"
/*
* return an inverted copy of table a
*/
Pt_t*
ptinvert(Pt_t* a)
{
Pt_t* t;
Ptprefix_t* ap;
Ptaddr_t m;
if (t = ptopen(a->disc))
{
m = 0;
for (ap = (Ptprefix_t*)dtfirst(a->dict); ap; ap = (Ptprefix_t*)dtnext(a->dict, ap))
{
if (m < ap->min && !ptinsert(t, m, ap->min - 1))
break;
m = ap->max + 1;
}
if (m || !dtsize(a->dict))
ptinsert(t, m, ~((Ptaddr_t)0));
}
return t;
}