functionObjects.h
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	/****************************************************************************
	**
	** Copyright (c) 2008-2015 C.B. Barber. All rights reserved.
	** $Id: //main/2015/qhull/src/libqhullcpp/functionObjects.h#1 $$Change: 1981 $
	** $DateTime: 2015/09/28 20:26:32 $$Author: bbarber $
	**
	****************************************************************************/

	#ifndef QHFUNCTIONOBJECTS_H
	#define QHFUNCTIONOBJECTS_H

	#include <stdlib.h>
	#include <math.h>

	namespace orgQhull {

	#//!\name Defined here

	//! Sum of absolute values of the elements in a container
	class AbsoluteSumOf;
	//! Sum of the elements in a container
	class SumOf;
	//! Sum of squares of the elements in a container
	class SumSquaresOf;

	#//!\name Class

	//! Absolute sum of the elements in a container
	class AbsoluteSumOf
	{
	private:
	double sum;
	public:
	inline AbsoluteSumOf() : sum(0.0) {}
	inline void operator()(double v) { sum += fabs(v); }
	inline operator double() { return sum; }
	};//AbsoluteSumOf

	//! Sum of the elements in a container
	class SumOf
	{
	private:
	double sum;
	public:
	inline SumOf() : sum(0.0) {}
	inline void operator()(double v) { sum += v; }
	inline operator double() { return sum; }
	};//SumOf


	//! Sum of squares of the elements in a container
	class SumSquaresOf
	{
	private:
	double sum;
	public:
	inline SumSquaresOf() : sum(0.0) {}
	inline void operator()(double v) { sum += v*v; }
	inline operator double() { return sum; }
	};//SumSquaresOf


	}//orgQhull


	#endif //QHFUNCTIONOBJECTS_H