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#181 Support BigInt

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This commit is contained in:
Michael Mclaughlin
2025-01-23 15:17:36 +00:00
parent cb60444aaf
commit 6df248f559
2 changed files with 158 additions and 143 deletions
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decimal.js
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@@ -218,8 +218,8 @@
* Return a new Decimal whose value is the value of this Decimal clamped to the range
* delineated by `min` and `max`.
*
* min {number|string|Decimal}
* max {number|string|Decimal}
* min {number|string|bigInt|Decimal}
* max {number|string|bigInt|Decimal}
*
*/
P.clampedTo = P.clamp = function (min, max) {
@@ -1124,7 +1124,7 @@
* log[b](Infinity) = Infinity
* log[b](NaN) = NaN
*
* [base] {number|string|Decimal} The base of the logarithm.
* [base] {number|string|bigInt|Decimal} The base of the logarithm.
*
*/
P.logarithm = P.log = function (base) {
@@ -1218,7 +1218,7 @@
/*
* Return a new Decimal whose value is the maximum of the arguments and the value of this Decimal.
*
* arguments {number|string|Decimal}
* arguments {number|string|bigInt|Decimal}
*
P.max = function () {
Array.prototype.push.call(arguments, this);
@@ -1230,7 +1230,7 @@
/*
* Return a new Decimal whose value is the minimum of the arguments and the value of this Decimal.
*
* arguments {number|string|Decimal}
* arguments {number|string|bigInt|Decimal}
*
P.min = function () {
Array.prototype.push.call(arguments, this);
@@ -2053,7 +2053,7 @@
* denominator. If a maximum denominator is not specified, the denominator will be the lowest
* value necessary to represent the number exactly.
*
* [maxD] {number|string|Decimal} Maximum denominator. Integer >= 1 and < Infinity.
* [maxD] {number|string|bigInt|Decimal} Maximum denominator. Integer >= 1 and < Infinity.
*
*/
P.toFraction = function (maxD) {
@@ -2141,7 +2141,7 @@
*
* The return value is not affected by the value of `precision`.
*
* y {number|string|Decimal} The magnitude to round to a multiple of.
* y {number|string|bigInt|Decimal} The magnitude to round to a multiple of.
* [rm] {number} Rounding mode. Integer, 0 to 8 inclusive.
*
* 'toNearest() rounding mode not an integer: {rm}'
@@ -2261,7 +2261,7 @@
*
* If a result is incorrectly rounded the maximum error will be 1 ulp (unit in last place).
*
* y {number|string|Decimal} The power to which to raise this Decimal.
* y {number|string|bigInt|Decimal} The power to which to raise this Decimal.
*
*/
P.toPower = P.pow = function (y) {
@@ -3254,15 +3254,15 @@
for (; ++i < args.length;) {
y = new Ctor(args[i]);
// NaN?
if (!y.s) {
x = y;
break;
}
k = x.cmp(y);
if (k === n || k === 0 && x.s === n) {
x = y;
}
@@ -3522,6 +3522,8 @@
function parseDecimal(x, str) {
var e, i, len;
// TODO BigInt str: no need to check for decimal point, exponential form or leading zeros.
// Decimal point?
if ((e = str.indexOf('.')) > -1) str = str.replace('.', '');
@@ -3989,7 +3991,7 @@
/*
* Return a new Decimal whose value is the absolute value of `x`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function abs(x) {
@@ -4000,7 +4002,7 @@
/*
* Return a new Decimal whose value is the arccosine in radians of `x`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function acos(x) {
@@ -4012,7 +4014,7 @@
* Return a new Decimal whose value is the inverse of the hyperbolic cosine of `x`, rounded to
* `precision` significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function acosh(x) {
@@ -4024,8 +4026,8 @@
* Return a new Decimal whose value is the sum of `x` and `y`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* y {number|string|Decimal}
* x {number|string|bigInt|Decimal}
* y {number|string|bigInt|Decimal}
*
*/
function add(x, y) {
@@ -4037,7 +4039,7 @@
* Return a new Decimal whose value is the arcsine in radians of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function asin(x) {
@@ -4049,7 +4051,7 @@
* Return a new Decimal whose value is the inverse of the hyperbolic sine of `x`, rounded to
* `precision` significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function asinh(x) {
@@ -4061,7 +4063,7 @@
* Return a new Decimal whose value is the arctangent in radians of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function atan(x) {
@@ -4073,7 +4075,7 @@
* Return a new Decimal whose value is the inverse of the hyperbolic tangent of `x`, rounded to
* `precision` significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function atanh(x) {
@@ -4088,8 +4090,8 @@
* Domain: [-Infinity, Infinity]
* Range: [-pi, pi]
*
* y {number|string|Decimal} The y-coordinate.
* x {number|string|Decimal} The x-coordinate.
* y {number|string|bigInt|Decimal} The y-coordinate.
* x {number|string|bigInt|Decimal} The x-coordinate.
*
* atan2(±0, -0) = ±pi
* atan2(±0, +0) = ±0
@@ -4154,7 +4156,7 @@
* Return a new Decimal whose value is the cube root of `x`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function cbrt(x) {
@@ -4165,7 +4167,7 @@
/*
* Return a new Decimal whose value is `x` rounded to an integer using `ROUND_CEIL`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function ceil(x) {
@@ -4176,9 +4178,9 @@
/*
* Return a new Decimal whose value is `x` clamped to the range delineated by `min` and `max`.
*
* x {number|string|Decimal}
* min {number|string|Decimal}
* max {number|string|Decimal}
* x {number|string|bigInt|Decimal}
* min {number|string|bigInt|Decimal}
* max {number|string|bigInt|Decimal}
*
*/
function clamp(x, min, max) {
@@ -4252,7 +4254,7 @@
* Return a new Decimal whose value is the cosine of `x`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function cos(x) {
@@ -4264,7 +4266,7 @@
* Return a new Decimal whose value is the hyperbolic cosine of `x`, rounded to precision
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function cosh(x) {
@@ -4284,7 +4286,7 @@
* The Decimal constructor and exported function.
* Return a new Decimal instance.
*
* v {number|string|Decimal} A numeric value.
* v {number|string|bigInt|Decimal} A numeric value.
*
*/
function Decimal(v) {
@@ -4362,9 +4364,10 @@
}
return;
}
// Infinity, NaN.
} else if (v * 0 !== 0) {
// Infinity or NaN?
if (v * 0 !== 0) {
if (!v) x.s = NaN;
x.e = NaN;
x.d = null;
@@ -4372,22 +4375,32 @@
}
return parseDecimal(x, v.toString());
} else if (t !== 'string') {
throw Error(invalidArgument + v);
}
// Minus sign?
if ((i = v.charCodeAt(0)) === 45) {
v = v.slice(1);
x.s = -1;
} else {
// Plus sign?
if (i === 43) v = v.slice(1);
x.s = 1;
if (t === 'string') {
if ((i = v.charCodeAt(0)) === 45) { // minus sign
v = v.slice(1);
x.s = -1;
} else {
if (i === 43) v = v.slice(1); // plus sign
x.s = 1;
}
return isDecimal.test(v) ? parseDecimal(x, v) : parseOther(x, v);
}
return isDecimal.test(v) ? parseDecimal(x, v) : parseOther(x, v);
if (t === 'bigint') {
if (v < 0) {
v = -v;
x.s = -1;
} else {
x.s = 1;
}
return parseDecimal(x, v.toString());
}
throw Error(invalidArgument + v);
}
Decimal.prototype = P;
@@ -4464,8 +4477,8 @@
* Return a new Decimal whose value is `x` divided by `y`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* y {number|string|Decimal}
* x {number|string|bigInt|Decimal}
* y {number|string|bigInt|Decimal}
*
*/
function div(x, y) {
@@ -4477,7 +4490,7 @@
* Return a new Decimal whose value is the natural exponential of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} The power to which to raise the base of the natural log.
* x {number|string|bigInt|Decimal} The power to which to raise the base of the natural log.
*
*/
function exp(x) {
@@ -4488,7 +4501,7 @@
/*
* Return a new Decimal whose value is `x` round to an integer using `ROUND_FLOOR`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function floor(x) {
@@ -4502,7 +4515,7 @@
*
* hypot(a, b, ...) = sqrt(a^2 + b^2 + ...)
*
* arguments {number|string|Decimal}
* arguments {number|string|bigInt|Decimal}
*
*/
function hypot() {
@@ -4544,7 +4557,7 @@
* Return a new Decimal whose value is the natural logarithm of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function ln(x) {
@@ -4558,8 +4571,8 @@
*
* log[y](x)
*
* x {number|string|Decimal} The argument of the logarithm.
* y {number|string|Decimal} The base of the logarithm.
* x {number|string|bigInt|Decimal} The argument of the logarithm.
* y {number|string|bigInt|Decimal} The base of the logarithm.
*
*/
function log(x, y) {
@@ -4571,7 +4584,7 @@
* Return a new Decimal whose value is the base 2 logarithm of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function log2(x) {
@@ -4583,7 +4596,7 @@
* Return a new Decimal whose value is the base 10 logarithm of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function log10(x) {
@@ -4594,7 +4607,7 @@
/*
* Return a new Decimal whose value is the maximum of the arguments.
*
* arguments {number|string|Decimal}
* arguments {number|string|bigInt|Decimal}
*
*/
function max() {
@@ -4605,7 +4618,7 @@
/*
* Return a new Decimal whose value is the minimum of the arguments.
*
* arguments {number|string|Decimal}
* arguments {number|string|bigInt|Decimal}
*
*/
function min() {
@@ -4617,8 +4630,8 @@
* Return a new Decimal whose value is `x` modulo `y`, rounded to `precision` significant digits
* using rounding mode `rounding`.
*
* x {number|string|Decimal}
* y {number|string|Decimal}
* x {number|string|bigInt|Decimal}
* y {number|string|bigInt|Decimal}
*
*/
function mod(x, y) {
@@ -4630,8 +4643,8 @@
* Return a new Decimal whose value is `x` multiplied by `y`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* y {number|string|Decimal}
* x {number|string|bigInt|Decimal}
* y {number|string|bigInt|Decimal}
*
*/
function mul(x, y) {
@@ -4643,8 +4656,8 @@
* Return a new Decimal whose value is `x` raised to the power `y`, rounded to precision
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} The base.
* y {number|string|Decimal} The exponent.
* x {number|string|bigInt|Decimal} The base.
* y {number|string|bigInt|Decimal} The exponent.
*
*/
function pow(x, y) {
@@ -4762,7 +4775,7 @@
*
* To emulate `Math.round`, set rounding to 7 (ROUND_HALF_CEIL).
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function round(x) {
@@ -4778,7 +4791,7 @@
* -0 if x is -0,
* NaN otherwise
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function sign(x) {
@@ -4791,7 +4804,7 @@
* Return a new Decimal whose value is the sine of `x`, rounded to `precision` significant digits
* using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function sin(x) {
@@ -4803,7 +4816,7 @@
* Return a new Decimal whose value is the hyperbolic sine of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function sinh(x) {
@@ -4815,7 +4828,7 @@
* Return a new Decimal whose value is the square root of `x`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function sqrt(x) {
@@ -4827,8 +4840,8 @@
* Return a new Decimal whose value is `x` minus `y`, rounded to `precision` significant digits
* using rounding mode `rounding`.
*
* x {number|string|Decimal}
* y {number|string|Decimal}
* x {number|string|bigInt|Decimal}
* y {number|string|bigInt|Decimal}
*
*/
function sub(x, y) {
@@ -4842,7 +4855,7 @@
*
* Only the result is rounded, not the intermediate calculations.
*
* arguments {number|string|Decimal}
* arguments {number|string|bigInt|Decimal}
*
*/
function sum() {
@@ -4862,7 +4875,7 @@
* Return a new Decimal whose value is the tangent of `x`, rounded to `precision` significant
* digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function tan(x) {
@@ -4874,7 +4887,7 @@
* Return a new Decimal whose value is the hyperbolic tangent of `x`, rounded to `precision`
* significant digits using rounding mode `rounding`.
*
* x {number|string|Decimal} A value in radians.
* x {number|string|bigInt|Decimal} A value in radians.
*
*/
function tanh(x) {
@@ -4885,7 +4898,7 @@
/*
* Return a new Decimal whose value is `x` truncated to an integer.
*
* x {number|string|Decimal}
* x {number|string|bigInt|Decimal}
*
*/
function trunc(x) {