RoundFunction.java

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package com.graphbuilder.math.func;

public class RoundFunction implements Function {

    public RoundFunction() {}

    public double of(double[] d, int numParam) {
        if (d[0] >= Long.MAX_VALUE || d[0] <= Long.MIN_VALUE)
            return d[0];

        return Math.round(d[0]);
    }

    public boolean acceptNumParam(int numParam) {
        return numParam == 1;
    }

    public String toString() {
        return "round(x)";
    }
}