* Converts to {@literal double}.
     *
     * @param o
     *            The object to convert
     * @return The converted {@literal double}
     */
    public static double toPrimitiveDouble(final Object o) {
        return toPrimitiveDouble(o, null);
    }

    /**
     * Converts to {@literal double}.
     *
     * @param o
     *            The object to convert
     * @param pattern