static void sort5()

in commons-numbers-arrays/src/main/java/org/apache/commons/numbers/arrays/Sorting.java [117:175]

• 47 lines of code
• 10 McCabe index (conditional complexity)

    static void sort5(double[] x, int a, int b, int c, int d, int e) {
        // Uses an optimal sorting network from Knuth's Art of Computer Programming.
        // 9 comparisons.
        // Order pairs:
        // [(0,3),(1,4)]
        // [(0,2),(1,3)]
        // [(0,1),(2,4)]
        // [(1,2),(3,4)]
        // [(2,3)]
        if (x[e] < x[b]) {
            final double u = x[e];
            x[e] = x[b];
            x[b] = u;
        }
        if (x[d] < x[a]) {
            final double v = x[d];
            x[d] = x[a];
            x[a] = v;
        }

        if (x[d] < x[b]) {
            final double u = x[d];
            x[d] = x[b];
            x[b] = u;
        }
        if (x[c] < x[a]) {
            final double v = x[c];
            x[c] = x[a];
            x[a] = v;
        }

        if (x[e] < x[c]) {
            final double u = x[e];
            x[e] = x[c];
            x[c] = u;
        }
        if (x[b] < x[a]) {
            final double v = x[b];
            x[b] = x[a];
            x[a] = v;
        }

        if (x[e] < x[d]) {
            final double u = x[e];
            x[e] = x[d];
            x[d] = u;
        }
        if (x[c] < x[b]) {
            final double v = x[c];
            x[c] = x[b];
            x[b] = v;
        }

        if (x[d] < x[c]) {
            final double u = x[d];
            x[d] = x[c];
            x[c] = u;
        }
    }