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XPPQ.hP
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1994-02-21
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// This may look like C code, but it is really -*- C++ -*-
/*
Copyright (C) 1988 Free Software Foundation
written by Doug Lea (dl@rocky.oswego.edu)
This file is part of the GNU C++ Library. This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version. This library is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _<T>XPPQ_h
#ifdef __GNUG__
#pragma interface
#endif
#define _<T>XPPQ_h 1
#include "<T>.PQ.h"
#include "<T>.XPlex.h"
class <T>XPPQ : public <T>PQ
{
protected:
<T>XPlex p;
public:
<T>XPPQ(int chunksize = DEFAULT_INITIAL_CAPACITY);
<T>XPPQ(const <T>XPPQ&);
Pix enq(<T&> item);
<T> deq();
<T>& front();
void del_front();
int contains(<T&> item);
void clear();
Pix first();
void next(Pix& i);
<T>& operator () (Pix i);
void del(Pix i);
int owns(Pix i);
Pix seek(<T&> item);
int OK(); // rep invariant
};
inline <T>XPPQ::<T>XPPQ(int chunksize)
: p(1, chunksize) { count = 0; }
inline <T>XPPQ::<T>XPPQ(const <T>XPPQ& s) : p(s.p) { count = s.count; }
inline Pix <T>XPPQ::first()
{
return p.first();
}
inline void <T>XPPQ::next(Pix & idx)
{
p.next(idx);
}
inline <T>& <T>XPPQ::operator ()(Pix idx)
{
return p(idx);
}
inline <T>& <T>XPPQ::front ()
{
return p.low_element();
}
inline <T> <T>XPPQ::deq ()
{
<T> x = p.low_element();
del_front();
return x;
}
inline void <T>XPPQ::clear()
{
count = 0; p.clear();
}
inline int <T>XPPQ::contains (<T&> item)
{
return seek(item) != 0;
}
inline int <T>XPPQ::owns (Pix idx)
{
return p.owns(idx);
}
#endif