import StrNumberFlag from './StrNumberFlag';
/** 正无穷 */
export declare const POSITIVE_INFINITY: StrNumberFlag;
/** 负无穷 */
export declare const NEGATIVE_INFINITY: StrNumberFlag;
/** 不存在的数字 */
export declare const _NaN: StrNumberFlag;
/**
 * 计算两数之和
 */
export declare const add: (a: StrNumberType, b: StrNumberType) => StrNumberValue;
/**
 * 计算两数之差
 */
export declare const minus: (a: StrNumberType, b: StrNumberType) => StrNumberValue;
/**
 * 计算两数之积
 */
export declare const times: (a: StrNumberType, b: StrNumberType) => StrNumberValue;
/**
 * 计算两数之商
 */
export declare const into: (a: StrNumberType, b: StrNumberType) => StrNumberValue;
export declare const calc: (str: string) => StrNumberValue;
/**
 * 指定小数位数，超出四舍五入，不足补0
 */
export declare const toFixed: (value: StrNumberType, digits: number) => string;
/**
 * 判断数值是否是无限的
 */
export declare const _isInfinite: (value: StrNumberType) => value is typeof NEGATIVE_INFINITY | typeof POSITIVE_INFINITY;
/**
 * 判断数值是否是有限的
 */
export declare const _isFinite: (value: StrNumberType) => value is string;
/**
 * 判断数值是否是NaN
 */
export declare const _isNaN: (value: StrNumberType) => value is typeof _NaN;
/**
 * 数字字符串格式化
 * 用于外传参数归一化
 */
export declare const formatNumber: (value: StrNumberType) => StrNumberValue;
/**
 * 数字字符串格式化
 * 用于内部数字合规化
 */
export declare const checkNumber: (value: StrNumberValue) => StrNumberValue;
/**
 * 判断A是否小于B
 */
export declare const aIsLessThanB: (a: StrNumberType, b: StrNumberType) => boolean;
/**
 * 判断A是否等于B
 */
export declare const aIsEqualToB: (a: StrNumberType, b: StrNumberType) => boolean;
/**
 * 判断A是否大于B
 */
export declare const aIsMoreThanB: (a: StrNumberType, b: StrNumberType) => boolean;