Aktueller Stand

backend/node_modules/pure-rand/lib/distribution/UnsafeUniformIntDistribution.js

@@ -0,0 +1,34 @@
+"use strict";
+exports.__esModule = true;
+exports.unsafeUniformIntDistribution = void 0;
+var UnsafeUniformIntDistributionInternal_1 = require("./internals/UnsafeUniformIntDistributionInternal");
+var ArrayInt_1 = require("./internals/ArrayInt");
+var UnsafeUniformArrayIntDistributionInternal_1 = require("./internals/UnsafeUniformArrayIntDistributionInternal");
+var safeNumberMaxSafeInteger = Number.MAX_SAFE_INTEGER;
+var sharedA = { sign: 1, data: [0, 0] };
+var sharedB = { sign: 1, data: [0, 0] };
+var sharedC = { sign: 1, data: [0, 0] };
+var sharedData = [0, 0];
+function uniformLargeIntInternal(from, to, rangeSize, rng) {
+    var rangeSizeArrayIntValue = rangeSize <= safeNumberMaxSafeInteger
+        ? (0, ArrayInt_1.fromNumberToArrayInt64)(sharedC, rangeSize)
+        : (0, ArrayInt_1.substractArrayInt64)(sharedC, (0, ArrayInt_1.fromNumberToArrayInt64)(sharedA, to), (0, ArrayInt_1.fromNumberToArrayInt64)(sharedB, from));
+    if (rangeSizeArrayIntValue.data[1] === 0xffffffff) {
+        rangeSizeArrayIntValue.data[0] += 1;
+        rangeSizeArrayIntValue.data[1] = 0;
+    }
+    else {
+        rangeSizeArrayIntValue.data[1] += 1;
+    }
+    (0, UnsafeUniformArrayIntDistributionInternal_1.unsafeUniformArrayIntDistributionInternal)(sharedData, rangeSizeArrayIntValue.data, rng);
+    return sharedData[0] * 0x100000000 + sharedData[1] + from;
+}
+function unsafeUniformIntDistribution(from, to, rng) {
+    var rangeSize = to - from;
+    if (rangeSize <= 0xffffffff) {
+        var g = (0, UnsafeUniformIntDistributionInternal_1.unsafeUniformIntDistributionInternal)(rangeSize + 1, rng);
+        return g + from;
+    }
+    return uniformLargeIntInternal(from, to, rangeSize, rng);
+}
+exports.unsafeUniformIntDistribution = unsafeUniformIntDistribution;