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/*
* $Id: Range.h,v 1.7 2006/04/22 05:28:55 robertc Exp $
*
*
* SQUID Web Proxy Cache http://www.squid-cache.org/
* ----------------------------------------------------------
*
* Squid is the result of efforts by numerous individuals from
* the Internet community; see the CONTRIBUTORS file for full
* details. Many organizations have provided support for Squid's
* development; see the SPONSORS file for full details. Squid is
* Copyrighted (C) 2001 by the Regents of the University of
* California; see the COPYRIGHT file for full details. Squid
* incorporates software developed and/or copyrighted by other
* sources; see the CREDITS file for full details.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
*/
#ifndef SQUID_RANGE_H
#define SQUID_RANGE_H
#include <iosfwd>
#include <ostream>
/* represents [start, end) */
template <class C>
class Range
{
public:
Range ();
Range (C start_, C end_);
C start;
C end;
Range intersection (Range const &) const;
size_t size() const;
};
template <class C>
std::ostream& operator << (std::ostream &os, Range<C> const &aRange)
{
os << "[" << aRange.start << "," << aRange.end << ")";
return os;
}
template<class C>
Range<C>::Range () : start(), end() {}
template<class C>
Range<C>::Range (C start_, C end_) : start(start_), end(end_){}
template<class C>
Range<C>
Range<C>::intersection (Range const &rhs) const
{
Range<C> result (XMAX(start, rhs.start), XMIN(end, rhs.end));
return result;
}
template<class C>
size_t
Range<C>::size() const
{
return end > start ? end - start : 0;
}
#endif /* SQUID_RANGE_H */
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