modules/up/src/gnug++/unsigned.XPlex.h
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FUNCTIONS
This source file includes following functions.
- unsignedXPlex
- prev
- next
- full
- can_add_high
- can_add_low
- valid
- low
- high
- low_element
- low_element
- high_element
- high_element
- Pix_to_index
- index_to_Pix
- first
- last
- prev
- next
- set_cache
// 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 _unsignedXPlex_h
#ifdef __GNUG__
#pragma interface
#endif
#define _unsignedXPlex_h 1
#include "unsigned.Plex.h"
class unsignedXPlex: public unsignedPlex
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{
unsignedIChunk* ch; // cached chunk
void make_initial_chunks(int up = 1);
void cache(int idx) const;
void cache(const unsigned* p) const;
unsigned* dopred(const unsigned* p) const;
unsigned* dosucc(const unsigned* p) const;
inline void set_cache(const unsignedIChunk* t) const; // logically,
// not physically const
public:
unsignedXPlex(); // set low = 0;
// fence = 0;
// csize = default
unsignedXPlex(int ch_size); // low = 0;
// fence = 0;
// csize = ch_size
unsignedXPlex(int lo, // low = lo;
int ch_size); // fence=lo
// csize = ch_size
unsignedXPlex(int lo, // low = lo
int hi, // fence = hi+1
const unsigned initval,// fill with initval,
int ch_size = 0); // csize= ch_size
// or fence-lo if 0
unsignedXPlex(const unsignedXPlex&);
void operator= (const unsignedXPlex&);
// virtuals
inline unsigned& high_element ();
inline unsigned& low_element ();
inline const unsigned& high_element () const;
inline const unsigned& 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 unsigned& operator () (Pix p);
inline const unsigned& 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 unsigned& operator [] (int index);
inline const unsigned& 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 unsigned elem);
int del_high ();
int add_low (const unsigned elem);
int del_low ();
void fill(const unsigned x);
void fill(const unsigned x, int from, int to);
void clear();
void reverse();
int OK () const;
};
inline void unsignedXPlex::prev(int& idx) const
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{
--idx;
}
inline void unsignedXPlex::next(int& idx) const
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{
++idx;
}
inline int unsignedXPlex::full () const
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{
return 0;
}
inline int unsignedXPlex::can_add_high() const
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{
return 1;
}
inline int unsignedXPlex::can_add_low() const
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{
return 1;
}
inline int unsignedXPlex::valid (int idx) const
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{
return idx >= lo && idx < fnc;
}
inline int unsignedXPlex::low() const
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{
return lo;
}
inline int unsignedXPlex::high() const
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{
return fnc - 1;
}
inline unsigned& unsignedXPlex:: operator [] (int idx)
{
if (!ch->actual_index(idx)) cache(idx);
return *(ch->pointer_to(idx));
}
inline const unsigned& unsignedXPlex:: operator [] (int idx) const
{
if (!ch->actual_index(idx)) cache(idx);
return *((const unsigned*)(ch->pointer_to(idx)));
}
inline unsigned& unsignedXPlex::low_element ()
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{
if (empty()) index_error();
return *(hd->pointer_to(lo));
}
inline const unsigned& unsignedXPlex::low_element () const
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{
if (empty()) index_error();
return *((const unsigned*)(hd->pointer_to(lo)));
}
inline unsigned& unsignedXPlex::high_element ()
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{
if (empty()) index_error();
return *(tl()->pointer_to(fnc - 1));
}
inline const unsigned& unsignedXPlex::high_element () const
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{
if (empty()) index_error();
return *((const unsigned*)(tl()->pointer_to(fnc - 1)));
}
inline int unsignedXPlex::Pix_to_index(Pix px) const
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{
unsigned* p = (unsigned*)px;
if (!ch->actual_pointer(p)) cache(p);
return ch->index_of(p);
}
inline Pix unsignedXPlex::index_to_Pix(int idx) const
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{
if (!ch->actual_index(idx)) cache(idx);
return (Pix)(ch->pointer_to(idx));
}
inline Pix unsignedXPlex::first() const
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{
return Pix(hd->unsignedIChunk::first_pointer());
}
inline Pix unsignedXPlex::last() const
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{
return Pix(tl()->unsignedIChunk::last_pointer());
}
inline void unsignedXPlex::prev(Pix& p) const
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{
Pix q = Pix(ch->unsignedIChunk::pred((unsigned*) p));
p = (q == 0)? Pix(dopred((const unsigned*) p)) : q;
}
inline void unsignedXPlex::next(Pix& p) const
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{
Pix q = Pix(ch->unsignedIChunk::succ((unsigned*) p));
p = (q == 0)? Pix(dosucc((const unsigned*)p)) : q;
}
inline unsigned& unsignedXPlex:: operator () (Pix p)
{
return *((unsigned*)p);
}
inline const unsigned& unsignedXPlex:: operator () (Pix p) const
{
return *((const unsigned*)p);
}
inline void unsignedXPlex::set_cache(const unsignedIChunk* t) const
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{
((unsignedXPlex*)(this))->ch = (unsignedIChunk*)t;
}
#endif