/**
 * Rounding mode for numeric operations.
 */
export declare enum RoundingMode {
    /**
     * Round towards zero.
     */
    Down = 1,
    /**
     * Round away from zero.
     */
    Up = 2,
    /**
     * Round towards the nearest neighbor, but if in the middle round away from zero.
     *
     * Examples: `0.1 => 0`, `0.5 => 1`, `0.6 => 1`, `-1.1 => 1`, `-1.5 => 2`, `-1.6 => `2`
     */
    HalfUp = 3,
    /**
     * Round towards the nearest neighbor, but if in the middle round towards
     * the even neighbor. Also known as bankers rounding.
     *
     * Examples: `0.1 => 0`, `0.5 => 0`, `0.6 => 1`, `-1.1 => 1`, `-1.5 => 2`, `-1.6 => `2`
     */
    HalfEven = 4,
    /**
     * Round towards the nearest neighbor, but if in the middle round towards zero.
     *
     * Examples: `0.1 => 0`, `0.5 => 0`, `0.6 => 1`, `-1.1 => 1`, `-1.5 => 1`, `-1.6 => `2`
     */
    HalfDown = 5,
    /**
     * Round towards negative infinity.
     */
    Floor = 6,
    /**
     * Round towards positive infinity.
     */
    Ceiling = 7,
    /**
     * Do not round, operation should have an exact result. Using this mode
     * will result in errors being thrown if the result can not be exactly
     * represented without rounding.
     */
    Unnecessary = 8
}
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