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-/*
- * ZeroTier One - Global Peer to Peer Ethernet
- * Copyright (C) 2011-2014 ZeroTier Networks LLC
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- *
- * --
- *
- * ZeroTier may be used and distributed under the terms of the GPLv3, which
- * are available at: http://www.gnu.org/licenses/gpl-3.0.html
- *
- * If you would like to embed ZeroTier into a commercial application or
- * redistribute it in a modified binary form, please contact ZeroTier Networks
- * LLC. Start here: http://www.zerotier.com/
- */
-
-#ifndef _ZT_RANGE_HPP
-#define _ZT_RANGE_HPP
-
-namespace ZeroTier {
-
-/**
- * A range of numeric values
- *
- * @tparam T Type, can be any numeric value (int, float, double, etc.)
- */
-template<typename T>
-class Range
-{
-public:
- /**
- * Construct an empty range
- */
- Range()
- throw() :
- start(0),
- end(0)
- {
- }
-
- /**
- * @param s Starting value (inclusive)
- * @param e Ending value (exclusive)
- */
- Range(T s,T e)
- throw() :
- start(s),
- end(e)
- {
- }
-
- /**
- * Construct a range containing from n to n+1 (thus only n for integers)
- *
- * @param n Number to contain
- */
- Range(T n)
- throw() :
- start(n),
- end(n+1)
- {
- }
-
- /**
- * @return end - start
- */
- inline T magnitude() const
- throw()
- {
- return (end - start);
- }
-
- /**
- * @return True if range contains something (magnitude is nonzero)
- */
- inline operator bool() const
- throw()
- {
- return (end > start);
- }
-
- /**
- * @param v Value to test
- * @return True if value is between start (inclusive) and end (exclusive)
- */
- inline bool operator()(const T &v) const
- throw()
- {
- return ((v >= start)&&(v < end));
- }
-
- inline bool operator==(const Range &r) const throw() { return ((start == r.start)&&(end == r.end)); }
- inline bool operator!=(const Range &r) const throw() { return (!(*this == r)); }
- inline bool operator<(const Range &r) const throw() { return ((start < r.start) ? true : ((start == r.start) ? (end < r.end) : false)); }
- inline bool operator>(const Range &r) const throw() { return (r < *this); }
- inline bool operator<=(const Range &r) const throw() { return !(r < *this); }
- inline bool operator>=(const Range &r) const throw() { return !(*this < r); }
-
- /**
- * Start of range (may be modified directly)
- */
- T start;
-
- /**
- * End of range (may be modified directly)
- */
- T end;
-};
-
-} // namespace ZeroTier
-
-#endif