abs_diff.cpp

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#include "abs_diff.h"
#include <cmath>

namespace UA_CoMP {
namespace Num {

using std::function;

double abs_diff(double b, double e, double h, function<double(double)> f1, function<double(double)> f2)
{
        double maxDiff = 0.0;
        auto n = static_cast<unsigned int>((e - b) / h);
        for (unsigned int i = 0; i < n; ++i) {
                double y = b + static_cast<double>(i) * h;
                double const temp = std::fabs(f1(y) - f2(y));
                maxDiff = (temp > maxDiff ? temp : maxDiff);
        }
        return maxDiff;
}

} // namespace Num
} // namespace UA_CoMP