@yaffle/bigdecimal
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@yaffle/bigdecimal - npm Package Compare versions
Comparing version 1.0.22 to 1.0.23
@@ -76,7 +76,7 @@ /*jslint bigint: true, vars: true, indent: 2*/ | ||
| // `normalize` will change the exponent which is not good for fixed-point arithmetic (?) | ||
| /*let b = normalize(a, null); | ||
| while (a !== b) { | ||
| a = b; | ||
| b = normalize(a, null); | ||
| }*/ | ||
| //let b = normalize(a, null); | ||
| //while (a !== b) { | ||
| // a = b; | ||
| // b = normalize(a, null); | ||
| //} | ||
| return a; | ||
@@ -88,9 +88,14 @@ }; | ||
| BigDecimal.toBigInt = function (a) { | ||
| if (a.exponent === 0) { | ||
| const exponent = Number(a.exponent); | ||
| if (exponent === 0) { | ||
| return a.significand; | ||
| } | ||
| if (Number(a.exponent) < 0 && a.significand % BIGINT_BASE**BigInt(-a.exponent) !== 0n) { | ||
| throw new RangeError("The BigDecimal " + a.toString() + " cannot be converted to a BigInt because it is not an integer"); | ||
| if (exponent < 0) { | ||
| const result = bigIntUnscale(a.significand, -exponent); | ||
| if (bigIntScale(result, -exponent) !== a.significand) { | ||
| throw new RangeError("The BigDecimal " + a.toString() + " cannot be converted to a BigInt because it is not an integer"); | ||
| } | ||
| return result; | ||
| } | ||
| return Number(a.exponent) < 0 ? a.significand / BIGINT_BASE**BigInt(-a.exponent) : BIGINT_BASE**BigInt(a.exponent) * a.significand; | ||
| return bigIntScale(a.significand, exponent); | ||
| }; | ||
@@ -140,3 +145,3 @@ function create(significand, exponent) { | ||
| const i = Math.floor(e + 0.5); | ||
| return a >= BIGINT_BASE**BigInt(i) ? i + 1 : i; | ||
| return a >= cachedPower(i) ? i + 1 : i; | ||
| } | ||
@@ -181,33 +186,26 @@ function sum(a, b) { | ||
| } | ||
| let cache = {}; | ||
| let cacheSize = 0; | ||
| function cachedBigInt(k) { | ||
| // k === maximumFractionDigits | ||
| let lastValue = cache[k]; | ||
| if (lastValue == null) { | ||
| if (cacheSize > 100) { | ||
| cache = {}; | ||
| cacheSize = 0; | ||
| function cachedFunction(f) { | ||
| let cache = {}; | ||
| let cacheSize = 0; | ||
| return function (k) { | ||
| let lastValue = cache[k]; | ||
| if (lastValue == null) { | ||
| if (cacheSize > 100) { | ||
| cache = {}; | ||
| cacheSize = 0; | ||
| } | ||
| lastValue = f(k); | ||
| cache[k] = lastValue; | ||
| cacheSize += 1; | ||
| } | ||
| lastValue = BigInt(k); | ||
| cache[k] = lastValue; | ||
| cacheSize += 1; | ||
| } | ||
| return lastValue; | ||
| return lastValue; | ||
| }; | ||
| } | ||
| let cache2 = {}; | ||
| let cache2Size = 0; | ||
| function cachedPower(k) { | ||
| let lastValue = cache2[k]; | ||
| if (lastValue == null) { | ||
| if (cache2Size > 10) { | ||
| cache2 = {}; | ||
| cache2Size = 0; | ||
| } | ||
| lastValue = BIGINT_BASE**BigInt(k); | ||
| cache2[k] = lastValue; | ||
| cache2Size += 1; | ||
| } | ||
| return lastValue; | ||
| } | ||
| const cachedBigInt = cachedFunction(function (k) { | ||
| // k === maximumFractionDigits | ||
| return BigInt(k); | ||
| }); | ||
| const cachedPower = cachedFunction(function (k) { | ||
| return BIGINT_BASE**BigInt(k); | ||
| }); | ||
| function round(a, rounding) { | ||
@@ -326,2 +324,5 @@ if (rounding != null) { | ||
| } | ||
| function bigIntUnscale(a, unscaling) { | ||
| return (BASE === 2 ? (a >> cachedBigInt(unscaling)) : a / cachedPower(unscaling)); | ||
| } | ||
| BigDecimal.divide = function (a, b, rounding = null) { | ||
@@ -697,2 +698,3 @@ if (a.significand === 0n) { | ||
| if (i > 4 * ((9 + 1) / BASE) && rounding.maximumSignificantDigits != null && rounding.roundingMode === "half-even" && name !== "sin" && name !== "cos") { | ||
| console.error(x, rounding); | ||
| throw new Error(); | ||
@@ -914,4 +916,5 @@ } | ||
| if (BigDecimal.greaterThan(BigDecimal.abs(x), BigDecimal.BigDecimal(1))) { | ||
| //Note: rounding to maximumFractionDigits | ||
| const internalRounding = { | ||
| maximumSignificantDigits: rounding.maximumSignificantDigits + 1, | ||
| maximumFractionDigits: rounding.maximumSignificantDigits + 1, | ||
| roundingMode: "half-even" | ||
@@ -918,0 +921,0 @@ }; |
| { | ||
| "name": "@yaffle/bigdecimal", | ||
| "version": "1.0.22", | ||
| "version": "1.0.23", | ||
| "description": "Arbitrary precision decimal arithmetic library. Polyfill for decimal proposal. Implemented on the top of BigInt.", | ||
@@ -5,0 +5,0 @@ "main": "BigDecimal.js", |
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Improved metrics
- Total package byte prevSize
- increased by0.32%
45191
- Lines of code
- increased by0.33%
913
No dependency changes