import { Point } from '../math/geometry/point';
export declare function compareBooleans(a: boolean, b: boolean): number;
export declare function compareNumbers(a: number, b: number): number;
export declare function comparePointsYFirst(a: Point, b: Point): number;
export declare function comparePointsXY(a: Point, b: Point): number;
export declare function closeDistEps(a: number, b: number): boolean;
/** return true iff a >= b + GeomConstants.distanceEpsilon */
export declare function greaterDistEps(a: number, b: number): boolean;
/** return true iff a <= b - GeomConstants.distanceEpsilon */
export declare function lessDistEps(a: number, b: number): boolean;
/** returns -1 when a-b <= - GeomConstants.distanceEpsilon
 * returns 1 when a-b >=  GeomConstants.distanceEpsilon
 * return 0 otherwise
 */
export declare function compareNumbersDistEps(a: number, b: number): number;