filepos.h

俄罗斯人开发的大名鼎鼎的Pocket Pc 阅读器haaliread的源代码,visual c

/*
 * Copyright (c) 2001,2002,2003 Mike Matsnev.  All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice immediately at the beginning of the file, without modification,
 *    this list of conditions, and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Absolutely no warranty of function or purpose is made by the author
 *    Mike Matsnev.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * $Id: FilePos.h,v 1.3.2.1 2003/04/12 22:52:32 mike Exp $
 * 
 */

#ifndef FILEPOS_H
#define FILEPOS_H

struct FilePos {
  int	  para;
  int	  off;
  int	  docid;

  FilePos() : para(0), off(0), docid(0) { }
  FilePos(int p,int o,int did) : para(p), off(o), docid(did) { }
  FilePos(const FilePos& p) : para(p.para), off(p.off), docid(p.docid) { }
  FilePos& operator=(const FilePos& p) { para=p.para; off=p.off; docid=p.docid; return *this; }
  bool operator==(int p) const { return para==p && off==0 && docid==0; }
  bool operator!=(int p) const { return !operator==(p); }
  bool operator==(const FilePos& p) const { return para==p.para && off==p.off && docid==p.docid; }
  bool operator!=(const FilePos& p) const { return !operator==(p); }
  bool operator<(const FilePos& p) const {
    return docid<p.docid || (docid==p.docid && 
      (para<p.para || (para==p.para && off<p.off)));
  }
  bool operator>(const FilePos& p) const { return !operator<(p) && !operator==(p); }
  bool operator<=(const FilePos& p) const { return operator<(p) || operator==(p); }
  bool operator>=(const FilePos& p) const { return !operator<(p); }
  FilePos operator+(int i) { return FilePos(para,off+i,docid); }
};

#endif