private static int countLeadingZeros()

in metrics-core/src/benchmarks/java/com/amazon/metrics/DoubleFormat.java [130:150]

• 14 lines of code
• 4 McCabe index (conditional complexity)

    private static int countLeadingZeros(int fraction) {
        int max = (int) MAX;

        // detect this error because otherwise you get infinite looping...
        if(fraction < 0) {
            throw new IllegalArgumentException("Negative fraction: " + fraction);
        }

        // if the fraction is zero, specify minimumFractionDigits-1 as the zero count
        // otherwise no fraction will be displayed.
        if(fraction == 0) {
            return -1;
         }

        int count = 0;
        while( (fraction *= 10) < max ) {
            count++;
        }

        return count;
    }