/***********************************************************************
* *
* 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 the table union of a and b
*/
Pt_t*
ptunion(Pt_t* a, Pt_t* b)
{
Ptprefix_t* bp;
if (!(a = ptcopy(a)))
return 0;
for (bp = (Ptprefix_t*)dtfirst(b->dict); bp; bp = (Ptprefix_t*)dtnext(b->dict, bp))
if (!ptinsert(a, bp->min, bp->max))
break;
return a;
}