258 lines
6.6 KiB
C++
258 lines
6.6 KiB
C++
// 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef _<T>RPlex_h
|
|
#ifdef __GNUG__
|
|
#pragma interface
|
|
#endif
|
|
#define _<T>RPlex_h 1
|
|
|
|
#include "<T>.Plex.h"
|
|
|
|
// minimum number of chunks to index
|
|
|
|
#ifndef MIN_NCHUNKS
|
|
#define MIN_NCHUNKS 16
|
|
#endif
|
|
|
|
class <T>RPlex: public <T>Plex
|
|
{
|
|
int base; // base index of lowest chunk
|
|
int lch; // index of lowest used chunk
|
|
int fch; // 1 + index of highest used chunk
|
|
int maxch; // max chunks in array
|
|
<T>IChunk** chunks; // array of chunks
|
|
<T>IChunk* ch; // cached chunk
|
|
|
|
void make_initial_chunks(int up = 1);
|
|
|
|
void cache(int idx) const;
|
|
void cache(const <T>* p) const;
|
|
<T>* dopred(const <T>* p) const;
|
|
<T>* dosucc(const <T>* p) const;
|
|
|
|
inline void set_cache(const <T>IChunk* t) const; // logically,
|
|
// not physically const
|
|
|
|
public:
|
|
<T>RPlex(); // set low = 0;
|
|
// fence = 0;
|
|
// csize = default
|
|
|
|
<T>RPlex(int ch_size); // low = 0;
|
|
// fence = 0;
|
|
// csize = ch_size
|
|
|
|
<T>RPlex(int lo, // low = lo;
|
|
int ch_size); // fence=lo
|
|
// csize = ch_size
|
|
|
|
<T>RPlex(int lo, // low = lo
|
|
int hi, // fence = hi+1
|
|
const <T&> initval,// fill with initval,
|
|
int ch_size = 0); // csize= ch_size
|
|
// or fence-lo if 0
|
|
|
|
<T>RPlex(const <T>RPlex&);
|
|
|
|
inline ~<T>RPlex();
|
|
|
|
void operator= (const <T>RPlex&);
|
|
|
|
// virtuals
|
|
|
|
inline <T>& high_element ();
|
|
inline <T>& low_element ();
|
|
|
|
inline const <T>& high_element () const;
|
|
inline const <T>& low_element () const;
|
|
|
|
inline Pix first() const;
|
|
inline Pix last() const;
|
|
inline void prev(Pix& ptr) const;
|
|
inline void next(Pix& ptr) const;
|
|
int owns(Pix p) const;
|
|
inline <T>& operator () (Pix p);
|
|
inline const <T>& operator () (Pix p) const;
|
|
|
|
inline int low() const;
|
|
inline int high() const;
|
|
inline int valid(int idx) const;
|
|
inline void prev(int& idx) const;
|
|
inline void next(int& x) const;
|
|
inline <T>& operator [] (int index);
|
|
inline const <T>& operator [] (int index) const;
|
|
|
|
inline int Pix_to_index(Pix p) const;
|
|
inline Pix index_to_Pix(int idx) const;
|
|
|
|
inline int can_add_high() const;
|
|
inline int can_add_low() const;
|
|
inline 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 reset_low(int newlow);
|
|
|
|
int OK () const;
|
|
};
|
|
|
|
|
|
inline void <T>RPlex::prev(int& idx) const
|
|
{
|
|
--idx;
|
|
}
|
|
|
|
inline void <T>RPlex::next(int& idx) const
|
|
{
|
|
++idx;
|
|
}
|
|
|
|
inline int <T>RPlex::full () const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
inline int <T>RPlex::can_add_high() const
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
inline int <T>RPlex::can_add_low() const
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
inline int <T>RPlex::valid (int idx) const
|
|
{
|
|
return idx >= lo && idx < fnc;
|
|
}
|
|
|
|
inline int <T>RPlex::low() const
|
|
{
|
|
return lo;
|
|
}
|
|
|
|
inline int <T>RPlex::high() const
|
|
{
|
|
return fnc - 1;
|
|
}
|
|
|
|
inline void <T>RPlex::set_cache(const <T>IChunk* t) const
|
|
{
|
|
((<T>RPlex*)(this))->ch = (<T>IChunk*)t;
|
|
}
|
|
|
|
inline void <T>RPlex::cache(int idx) const
|
|
{
|
|
if (idx < lo || idx >= fnc) index_error();
|
|
set_cache(chunks[(idx - base) / csize]);
|
|
}
|
|
|
|
inline <T>& <T>RPlex::low_element ()
|
|
{
|
|
cache(lo); return *(ch->pointer_to(lo));
|
|
}
|
|
|
|
inline <T>& <T>RPlex::high_element ()
|
|
{
|
|
cache(fnc-1); return *(ch->pointer_to(fnc - 1));
|
|
}
|
|
|
|
inline const <T>& <T>RPlex::low_element () const
|
|
{
|
|
cache(lo); return *((const <T>*)(ch->pointer_to(lo)));
|
|
}
|
|
|
|
inline const <T>& <T>RPlex::high_element () const
|
|
{
|
|
cache(fnc-1); return *((const <T>*)(ch->pointer_to(fnc - 1)));
|
|
}
|
|
|
|
inline int <T>RPlex::Pix_to_index(Pix px) const
|
|
{
|
|
<T>* p = (<T>*)px;
|
|
if (!ch->actual_pointer(p)) cache(p);
|
|
return ch->index_of(p);
|
|
}
|
|
|
|
inline Pix <T>RPlex::index_to_Pix(int idx) const
|
|
{
|
|
if (!ch->actual_index(idx)) cache(idx);
|
|
return (Pix)(ch->pointer_to(idx));
|
|
}
|
|
|
|
inline Pix <T>RPlex::first() const
|
|
{
|
|
return Pix(hd-><T>IChunk::first_pointer());
|
|
}
|
|
|
|
inline Pix <T>RPlex::last() const
|
|
{
|
|
return Pix(tl()-><T>IChunk::last_pointer());
|
|
}
|
|
|
|
inline void <T>RPlex::prev(Pix& p) const
|
|
{
|
|
Pix q = Pix(ch-><T>IChunk::pred((<T>*)p));
|
|
p = (q == 0)? Pix(dopred((<T>*)p)) : q;
|
|
}
|
|
|
|
inline void <T>RPlex::next(Pix& p) const
|
|
{
|
|
Pix q = Pix(ch-><T>IChunk::succ((<T>*)p));
|
|
p = (q == 0)? Pix(dosucc((<T>*)p)) : q;
|
|
}
|
|
|
|
inline <T>& <T>RPlex:: operator () (Pix p)
|
|
{
|
|
return *((<T>*)p);
|
|
}
|
|
|
|
|
|
inline <T>& <T>RPlex:: operator [] (int idx)
|
|
{
|
|
cache(idx); return *(ch->pointer_to(idx));
|
|
}
|
|
|
|
inline const <T>& <T>RPlex:: operator () (Pix p) const
|
|
{
|
|
return *((const <T>*)p);
|
|
}
|
|
|
|
inline const <T>& <T>RPlex:: operator [] (int idx) const
|
|
{
|
|
cache(idx); return *((const <T>*)(ch->pointer_to(idx)));
|
|
}
|
|
|
|
inline <T>RPlex::~<T>RPlex()
|
|
{
|
|
delete chunks;
|
|
}
|
|
|
|
#endif
|