mirror of
https://github.com/dart-lang/sdk
synced 2024-09-18 22:01:19 +00:00
14531fa62d
Only delta from the original is a bad merge of tests/corelib/list_test.dart
This reverts commit 44d8be0ed3
.
BUG=
Review-Url: https://codereview.chromium.org/2774783002 .
448 lines
13 KiB
Dart
448 lines
13 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Testing Bigints with and without intrinsics.
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// VMOptions=
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// VMOptions=--no_intrinsify
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// VMOptions=--no-background-compilation
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// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
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library big_integer_test;
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import "package:expect/expect.dart";
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foo() => 1234567890123456789;
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bar() => 12345678901234567890;
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testSmiOverflow() {
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var a = 1073741823;
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var b = 1073741822;
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Expect.equals(2147483645, a + b);
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a = -1000000000;
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b = 1000000001;
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Expect.equals(-2000000001, a - b);
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Expect.equals(-1000000001000000000, a * b);
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}
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testBigintAdd() {
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// Bigint and Smi.
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var a = 12345678901234567890;
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var b = 2;
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Expect.equals(12345678901234567892, a + b);
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Expect.equals(12345678901234567892, b + a);
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// Bigint and Bigint.
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a = 10000000000000000001;
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Expect.equals(20000000000000000002, a + a);
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// Bigint and double.
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a = 100000000000000000000.0;
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b = 200000000000000000000;
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Expect.isTrue((a + b) is double);
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Expect.equals(300000000000000000000.0, a + b);
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Expect.isTrue((b + a) is double);
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Expect.equals(300000000000000000000.0, b + a);
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}
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testBigintSub() {
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// Bigint and Smi.
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var a = 12345678901234567890;
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var b = 2;
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Expect.equals(12345678901234567888, a - b);
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Expect.equals(-12345678901234567888, b - a);
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// Bigint and Bigint.
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a = 10000000000000000001;
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Expect.equals(20000000000000000002, a + a);
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// Bigint and double.
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a = 100000000000000000000.0;
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b = 200000000000000000000;
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Expect.isTrue((a + b) is double);
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Expect.equals(-100000000000000000000.0, a - b);
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Expect.isTrue((b + a) is double);
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Expect.equals(100000000000000000000.0, b - a);
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Expect.equals(-1, 0xF00000000 - 0xF00000001);
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}
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testBigintMul() {
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// Bigint and Smi.
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var a = 12345678901234567890;
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var b = 10;
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Expect.equals(123456789012345678900, a * b);
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Expect.equals(123456789012345678900, b * a);
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// Bigint and Bigint.
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a = 12345678901234567890;
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b = 10000000000000000;
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Expect.equals(123456789012345678900000000000000000, a * b);
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// Bigint and double.
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a = 2.0;
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b = 200000000000000000000;
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Expect.isTrue((a * b) is double);
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Expect.equals(400000000000000000000.0, a * b);
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Expect.isTrue((b * a) is double);
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Expect.equals(400000000000000000000.0, b * a);
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}
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testBigintTruncDiv() {
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var a = 12345678901234567890;
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var b = 10;
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// Bigint and Smi.
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Expect.equals(1234567890123456789, a ~/ b);
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Expect.equals(0, b ~/ a);
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Expect.equals(123456789, 123456789012345678 ~/ 1000000000);
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// Bigint and Bigint.
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a = 12345678901234567890;
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b = 10000000000000000;
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Expect.equals(1234, a ~/ b);
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// Bigint and double.
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a = 100000000000000000000.0;
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b = 200000000000000000000;
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Expect.equals(0, a ~/ b);
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Expect.equals(2, b ~/ a);
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}
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testBigintDiv() {
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// Bigint and Smi.
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Expect.equals(1234567890123456789.1, 12345678901234567891 / 10);
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Expect.equals(0.000000001234, 1234 / 1000000000000);
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Expect.equals(12345678901234000000.0, 123456789012340000000 / 10);
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// Bigint and Bigint.
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var a = 12345670000000000000;
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var b = 10000000000000000;
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Expect.equals(1234.567, a / b);
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// Bigint and double.
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a = 400000000000000000000.0;
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b = 200000000000000000000;
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Expect.equals(2.0, a / b);
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Expect.equals(0.5, b / a);
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}
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testBigintModulo() {
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// Bigint and Smi.
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var a = 1000000000005;
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var b = 10;
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Expect.equals(5, a % b);
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Expect.equals(10, b % a);
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// Bigint & Bigint
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a = 10000000000000000001;
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b = 10000000000000000000;
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Expect.equals(1, a % b);
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Expect.equals(10000000000000000000, b % a);
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// Bigint & double.
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a = 10000000100000000.0;
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b = 10000000000000000;
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Expect.equals(100000000.0, a % b);
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Expect.equals(10000000000000000.0, b % a);
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// Transitioning from Mint to Bigint.
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var iStart = 4611686018427387900;
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var prevX = -23 % iStart;
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for (int i = iStart + 1; i < iStart + 10; i++) {
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var x = -23 % i;
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Expect.equals(1, x - prevX);
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Expect.isTrue(x > 0);
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prevX = x;
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}
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}
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testBigintModPow() {
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var x, e, m;
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x = 1234567890;
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e = 1000000001;
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m = 19;
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Expect.equals(11, x.modPow(e, m));
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x = 1234567890;
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e = 19;
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m = 1000000001;
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Expect.equals(122998977, x.modPow(e, m));
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x = 19;
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e = 1234567890;
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m = 1000000001;
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Expect.equals(619059596, x.modPow(e, m));
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x = 19;
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e = 1000000001;
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m = 1234567890;
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Expect.equals(84910879, x.modPow(e, m));
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x = 1000000001;
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e = 19;
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m = 1234567890;
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Expect.equals(872984351, x.modPow(e, m));
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x = 1000000001;
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e = 1234567890;
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m = 19;
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Expect.equals(0, x.modPow(e, m));
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x = 12345678901234567890;
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e = 10000000000000000001;
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m = 19;
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Expect.equals(2, x.modPow(e, m));
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x = 12345678901234567890;
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e = 19;
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m = 10000000000000000001;
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Expect.equals(3239137215315834625, x.modPow(e, m));
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x = 19;
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e = 12345678901234567890;
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m = 10000000000000000001;
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Expect.equals(4544207837373941034, x.modPow(e, m));
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x = 19;
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e = 10000000000000000001;
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m = 12345678901234567890;
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Expect.equals(11135411705397624859, x.modPow(e, m));
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x = 10000000000000000001;
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e = 19;
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m = 12345678901234567890;
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Expect.equals(2034013733189773841, x.modPow(e, m));
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x = 10000000000000000001;
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e = 12345678901234567890;
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m = 19;
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Expect.equals(1, x.modPow(e, m));
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x = 12345678901234567890;
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e = 19;
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m = 10000000000000000001;
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Expect.equals(3239137215315834625, x.modPow(e, m));
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x = 12345678901234567890;
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e = 10000000000000000001;
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m = 19;
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Expect.equals(2, x.modPow(e, m));
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x = 123456789012345678901234567890;
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e = 123456789012345678901234567891;
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m = 123456789012345678901234567899;
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Expect.equals(116401406051033429924651549616, x.modPow(e, m));
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x = 123456789012345678901234567890;
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e = 123456789012345678901234567899;
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m = 123456789012345678901234567891;
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Expect.equals(123456789012345678901234567890, x.modPow(e, m));
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x = 123456789012345678901234567899;
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e = 123456789012345678901234567890;
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m = 123456789012345678901234567891;
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Expect.equals(35088523091000351053091545070, x.modPow(e, m));
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x = 123456789012345678901234567899;
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e = 123456789012345678901234567891;
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m = 123456789012345678901234567890;
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Expect.equals(18310047270234132455316941949, x.modPow(e, m));
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x = 123456789012345678901234567891;
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e = 123456789012345678901234567899;
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m = 123456789012345678901234567890;
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Expect.equals(1, x.modPow(e, m));
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x = 123456789012345678901234567891;
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e = 123456789012345678901234567890;
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m = 123456789012345678901234567899;
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Expect.equals(40128068573873018143207285483, x.modPow(e, m));
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}
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testBigintModInverse() {
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var x, m;
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x = 1;
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m = 1;
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Expect.equals(0, x.modInverse(m));
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x = 0;
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m = 1000000001;
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Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
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x = 1234567890;
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m = 19;
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Expect.equals(11, x.modInverse(m));
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x = 1234567890;
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m = 1000000001;
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Expect.equals(189108911, x.modInverse(m));
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x = 19;
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m = 1000000001;
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Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
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x = 19;
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m = 1234567890;
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Expect.equals(519818059, x.modInverse(m));
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x = 1000000001;
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m = 1234567890;
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Expect.equals(1001100101, x.modInverse(m));
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x = 1000000001;
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m = 19;
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Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
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x = 12345678901234567890;
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m = 19;
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Expect.equals(3, x.modInverse(m));
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x = 12345678901234567890;
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m = 10000000000000000001;
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Expect.equals(9736746307686209582, x.modInverse(m));
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x = 19;
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m = 10000000000000000001;
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Expect.equals(6315789473684210527, x.modInverse(m));
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x = 19;
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m = 12345678901234567890;
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Expect.equals(10396361179987004539, x.modInverse(m));
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x = 10000000000000000001;
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m = 12345678901234567890;
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Expect.equals(325004555487045911, x.modInverse(m));
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x = 10000000000000000001;
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m = 19;
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Expect.equals(7, x.modInverse(m));
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x = 12345678901234567890;
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m = 10000000000000000001;
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Expect.equals(9736746307686209582, x.modInverse(m));
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x = 12345678901234567890;
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m = 19;
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Expect.equals(3, x.modInverse(m));
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x = 123456789012345678901234567890;
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m = 123456789012345678901234567899;
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Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
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x = 123456789012345678901234567890;
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m = 123456789012345678901234567891;
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Expect.equals(123456789012345678901234567890, x.modInverse(m));
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x = 123456789012345678901234567899;
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m = 123456789012345678901234567891;
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Expect.equals(77160493132716049313271604932, x.modInverse(m));
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x = 123456789012345678901234567899;
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m = 123456789012345678901234567890;
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Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
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x = 123456789012345678901234567891;
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m = 123456789012345678901234567890;
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Expect.equals(1, x.modInverse(m));
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x = 123456789012345678901234567891;
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m = 123456789012345678901234567899;
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Expect.equals(46296295879629629587962962962, x.modInverse(m));
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}
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testBigintGcd() {
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var x, m;
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x = 1;
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m = 1;
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Expect.equals(1, x.gcd(m));
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x = 693;
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m = 609;
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Expect.equals(21, x.gcd(m));
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x = 693 << 40;
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m = 609 << 40;
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Expect.equals(21 << 40, x.gcd(m));
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x = 609 << 40;
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;
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m = 693 << 40;
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;
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Expect.equals(21 << 40, x.gcd(m));
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x = 0;
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m = 1000000001;
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Expect.equals(m, x.gcd(m));
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x = 1000000001;
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m = 0;
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Expect.equals(x, x.gcd(m));
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x = 0;
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m = -1000000001;
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Expect.equals(-m, x.gcd(m));
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x = -1000000001;
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m = 0;
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Expect.equals(-x, x.gcd(m));
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x = 0;
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m = 0;
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Expect.equals(0, x.gcd(m));
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x = 0;
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m = 123456789012345678901234567890;
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Expect.equals(m, x.gcd(m));
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x = 123456789012345678901234567890;
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m = 0;
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Expect.equals(x, x.gcd(m));
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x = 0;
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m = -123456789012345678901234567890;
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Expect.equals(-m, x.gcd(m));
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x = -123456789012345678901234567890;
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m = 0;
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Expect.equals(-x, x.gcd(m));
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x = 1234567890;
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m = 19;
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Expect.equals(1, x.gcd(m));
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x = 1234567890;
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m = 1000000001;
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Expect.equals(1, x.gcd(m));
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x = 19;
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m = 1000000001;
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Expect.equals(19, x.gcd(m));
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x = 19;
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m = 1234567890;
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Expect.equals(1, x.gcd(m));
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x = 1000000001;
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m = 1234567890;
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Expect.equals(1, x.gcd(m));
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x = 1000000001;
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m = 19;
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Expect.equals(19, x.gcd(m));
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x = 12345678901234567890;
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m = 19;
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Expect.equals(1, x.gcd(m));
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x = 12345678901234567890;
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m = 10000000000000000001;
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Expect.equals(1, x.gcd(m));
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x = 19;
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m = 10000000000000000001;
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Expect.equals(1, x.gcd(m));
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x = 19;
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m = 12345678901234567890;
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Expect.equals(1, x.gcd(m));
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x = 10000000000000000001;
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m = 12345678901234567890;
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Expect.equals(1, x.gcd(m));
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x = 10000000000000000001;
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m = 19;
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Expect.equals(1, x.gcd(m));
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x = 12345678901234567890;
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m = 10000000000000000001;
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Expect.equals(1, x.gcd(m));
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x = 12345678901234567890;
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m = 19;
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Expect.equals(1, x.gcd(m));
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x = 123456789012345678901234567890;
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m = 123456789012345678901234567899;
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Expect.equals(9, x.gcd(m));
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x = 123456789012345678901234567890;
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m = 123456789012345678901234567891;
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Expect.equals(1, x.gcd(m));
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x = 123456789012345678901234567899;
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m = 123456789012345678901234567891;
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Expect.equals(1, x.gcd(m));
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x = 123456789012345678901234567899;
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m = 123456789012345678901234567890;
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Expect.equals(9, x.gcd(m));
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x = 123456789012345678901234567891;
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m = 123456789012345678901234567890;
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Expect.equals(1, x.gcd(m));
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x = 123456789012345678901234567891;
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m = 123456789012345678901234567899;
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Expect.equals(1, x.gcd(m));
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}
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testBigintNegate() {
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var a = 0xF000000000000000F;
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var b = ~a; // negate.
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Expect.equals(-0xF0000000000000010, b);
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Expect.equals(0, a & b);
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Expect.equals(-1, a | b);
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}
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testShiftAmount() {
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Expect.equals(0, 12 >> 111111111111111111111111111111);
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Expect.equals(-1, -12 >> 111111111111111111111111111111);
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bool exceptionCaught = false;
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try {
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var a = 1 << 1111111111111111111111111111;
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} on OutOfMemoryError catch (e) {
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exceptionCaught = true;
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}
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Expect.equals(true, exceptionCaught);
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}
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main() {
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for (int i = 0; i < 10; i++) {
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Expect.equals(1234567890123456789, foo());
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Expect.equals(12345678901234567890, bar());
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testSmiOverflow(); // //# overflow: ok
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testBigintAdd(); // //# add: ok
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testBigintSub(); // //# sub: ok
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testBigintMul(); // //# mul: ok
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testBigintTruncDiv(); // //# trunDiv: ok
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testBigintDiv(); // //# div: ok
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testBigintModulo(); // //# mod: ok
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testBigintModPow(); // //# modPow: ok
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testBigintModInverse(); // //# modInv: ok
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testBigintGcd(); // //# gcd: ok
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testBigintNegate(); // //# negate: ok
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testShiftAmount(); // //# shift: ok
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Expect.equals(12345678901234567890, (12345678901234567890).abs());
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Expect.equals(12345678901234567890, (-12345678901234567890).abs());
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var a = 10000000000000000000;
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var b = 10000000000000000001;
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Expect.equals(false, a.hashCode == b.hashCode);
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Expect.equals(true, a.hashCode == (b - 1).hashCode);
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}
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}
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