Datasourceforcryptocurrency
/
node_modules
/pure-rand
/lib
/distribution
/UnsafeUniformBigIntDistribution.js
| ; | |
| exports.__esModule = true; | |
| exports.unsafeUniformBigIntDistribution = void 0; | |
| var SBigInt = typeof BigInt !== 'undefined' ? BigInt : undefined; | |
| function unsafeUniformBigIntDistribution(from, to, rng) { | |
| var diff = to - from + SBigInt(1); | |
| var MinRng = SBigInt(-0x80000000); | |
| var NumValues = SBigInt(0x100000000); | |
| var FinalNumValues = NumValues; | |
| var NumIterations = 1; | |
| while (FinalNumValues < diff) { | |
| FinalNumValues *= NumValues; | |
| ++NumIterations; | |
| } | |
| var MaxAcceptedRandom = FinalNumValues - (FinalNumValues % diff); | |
| while (true) { | |
| var value = SBigInt(0); | |
| for (var num = 0; num !== NumIterations; ++num) { | |
| var out = rng.unsafeNext(); | |
| value = NumValues * value + (SBigInt(out) - MinRng); | |
| } | |
| if (value < MaxAcceptedRandom) { | |
| var inDiff = value % diff; | |
| return inDiff + from; | |
| } | |
| } | |
| } | |
| exports.unsafeUniformBigIntDistribution = unsafeUniformBigIntDistribution; | |