// -*- c++ -*-
/*****************************************************************************/
// Copyright (c) Illumina 2008
// Author: Richard Shaw
//
// This software is covered by the "Illumina Genome Analyzer Software
// License Agreement" and the "Illumina Source Code License Agreement",
// and certain third party copyright/licenses, and any user of this
// source file is bound by the terms therein (see accompanying files
// Illumina_Genome_Analyzer_Software_License_Agreement.pdf and
// Illumina_Source_Code_License_Agreement.pdf and third party
// copyright/license notices).
/*****************************************************************************/

#ifndef PROPORTION_CALC_H
#define PROPORTION_CALC_H

/*****************************************************************************/

template <class T> class Proportion_Calc
{
 public:
    Proportion_Calc(T sum, bool as_percent=true)
        : my_sum(sum), my_multiplier(as_percent ? 100.0 : 1.0) { }
    ~Proportion_Calc() { }
    float operator()(const T val) const {
        return ((my_sum > 0) ? ((my_multiplier * val) / my_sum) : 0.0);
    }

private:
    T my_sum;
    float my_multiplier;
};

/*****************************************************************************/

#endif // ! PROPORTION_CALC_H

/*****************************************************************************/