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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)
based on code by Marc Shapiro (shapiro@sor.inria.fr)
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>FPlex_h
#ifdef __GNUG__
#pragma interface
#endif
#define _<T>FPlex_h 1
#include "<T>.Plex.h"
class <T>FPlex : public <T>Plex
{
public:
<T>FPlex(); // set low = 0;
// fence = 0;
// csize = default
<T>FPlex(int maxsize); // low = 0;
// fence = 0;
// csize = maxsize
<T>FPlex(int lo, // low = lo;
int maxsize); // fence=lo
// csize = maxsize
<T>FPlex(int lo, // low = lo
int hi, // fence = hi+1
const <T&> initval,// fill with initval,
int maxsize = 0); // csize = maxsize
// or fence - lo if 0
<T>FPlex(const <T>FPlex&); // X(X&)
~<T>FPlex();
void operator= (const <T>FPlex&);
// virtuals
<T>& high_element ();
<T>& low_element ();
const <T>& high_element () const;
const <T>& low_element () const;
Pix first() const;
Pix last() const;
void prev(Pix& ptr) const;
void next(Pix& ptr) const;
int owns(Pix p) const;
<T>& operator () (Pix p);
const <T>& operator () (Pix p) const;
int low() const;
int high() const;
int valid(int idx) const;
void prev(int& idx) const;
void next(int& x) const;
<T>& operator [] (int index);
const <T>& operator [] (int index) const;
int Pix_to_index(Pix p) const;
Pix index_to_Pix(int idx) const;
int can_add_high() const;
int can_add_low() const;
int full() const;
int add_high(const <T&> elem);
int del_high ();
int add_low (const <T&> elem);
int del_low ();
void fill(const <T&> x);
void fill(const <T&> x, int from, int to);
void clear();
void reverse();
int OK () const;
};
inline int <T>FPlex::valid (int idx) const
{
return idx >= lo && idx < fnc;
}
inline int <T>FPlex::low() const
{
return lo;
}
inline int <T>FPlex::high() const
{
return fnc - 1;
}
inline Pix <T>FPlex::first() const
{
return (Pix)(hd-><T>IChunk::first_pointer());
}
inline void <T>FPlex::prev(Pix& p) const
{
p = Pix(hd-><T>IChunk::pred((<T>*) p));
}
inline void <T>FPlex::next(Pix& p) const
{
p = Pix(hd-><T>IChunk::succ((<T>*) p));
}
inline Pix <T>FPlex::last() const
{
return Pix(hd-><T>IChunk::last_pointer());
}
inline int <T>FPlex::full () const
{
return fnc - lo == csize;
}
inline void <T>FPlex::prev(int& idx) const
{
--idx;
}
inline void <T>FPlex::next(int& idx) const
{
++idx;
}
inline <T>& <T>FPlex:: operator [] (int idx)
{
if (idx < lo || idx >= fnc) index_error();
return *(hd->pointer_to(idx));
}
inline <T>& <T>FPlex:: operator () (Pix p)
{
return *((<T>*)p);
}
inline <T>& <T>FPlex::low_element ()
{
if (empty()) index_error();
return *(hd->pointer_to(lo));
}
inline <T>& <T>FPlex::high_element ()
{
if (empty()) index_error();
return *(hd->pointer_to(fnc - 1));
}
inline const <T>& <T>FPlex:: operator [] (int idx) const
{
if (idx < lo || idx >= fnc) index_error();
return *(hd->pointer_to(idx));
}
inline const <T>& <T>FPlex:: operator () (Pix p) const
{
return *((const <T>*)p);
}
inline const <T>& <T>FPlex::low_element () const
{
if (empty()) index_error();
return *(hd->pointer_to(lo));
}
inline const <T>& <T>FPlex::high_element () const
{
if (empty()) index_error();
return *(hd->pointer_to(fnc - 1));
}
inline int <T>FPlex::can_add_high() const
{
return hd->can_grow_high();
}
inline int <T>FPlex::can_add_low() const
{
return hd->can_grow_low();
}
inline int <T>FPlex::add_high(const <T&> elem)
{
if (!can_add_high()) full_error();
*((hd-><T>IChunk::grow_high())) = elem;
return fnc++;
}
inline int <T>FPlex::del_high ()
{
if (empty()) empty_error();
hd-><T>IChunk::shrink_high();
return --fnc - 1;
}
inline int <T>FPlex::add_low (const <T&> elem)
{
if (!can_add_low()) full_error();
*((hd-><T>IChunk::grow_low())) = elem;
return --lo;
}
inline int <T>FPlex::del_low ()
{
if (empty()) empty_error();
hd-><T>IChunk::shrink_low();
return ++lo;
}
inline int <T>FPlex::owns (Pix p) const
{
return hd->actual_pointer((<T>*)p);
}
inline int <T>FPlex::Pix_to_index(Pix p) const
{
if (!hd->actual_pointer((const <T>*)p)) index_error();
return hd->index_of((const <T>*)p);
}
inline Pix <T>FPlex::index_to_Pix(int idx) const
{
if (idx < lo || idx >= fnc) index_error();
return Pix(hd->pointer_to(idx));
}
inline <T>FPlex::~<T>FPlex() {}
#endif
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