| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 // Tests of loops. | |
| 6 | |
| 7 import 'expect.dart'; | |
| 8 | |
| 9 fact(n) { | |
| 10 var f = 1; | |
| 11 while (n > 0) { | |
| 12 f *= n; | |
| 13 --n; | |
| 14 } | |
| 15 return f; | |
| 16 } | |
| 17 | |
| 18 fib(n) { | |
| 19 if (n == 0) return 0; | |
| 20 var previous = 0, current = 1; | |
| 21 while (n > 1) { | |
| 22 var temp = current; | |
| 23 current += previous; | |
| 24 previous = temp; | |
| 25 --n; | |
| 26 } | |
| 27 return current; | |
| 28 } | |
| 29 | |
| 30 mkTrue() => true; | |
| 31 mkFalse() => false; | |
| 32 | |
| 33 check(b) { | |
| 34 Expect.isTrue(b); | |
| 35 return b; | |
| 36 } | |
| 37 | |
| 38 test0() { | |
| 39 while (mkTrue()) { | |
| 40 Expect.isTrue(true); | |
| 41 return; | |
| 42 } | |
| 43 Expect.isTrue(false); | |
| 44 } | |
| 45 | |
| 46 test1() { | |
| 47 while (mkFalse()) { | |
| 48 Expect.isTrue(false); | |
| 49 } | |
| 50 Expect.isTrue(true); | |
| 51 } | |
| 52 | |
| 53 test2() { | |
| 54 do { | |
| 55 Expect.isTrue(true); | |
| 56 } while (mkFalse()); | |
| 57 Expect.isTrue(true); | |
| 58 } | |
| 59 | |
| 60 test3() { | |
| 61 do { | |
| 62 Expect.isTrue(true); | |
| 63 return; | |
| 64 } while (check(false)); | |
| 65 Expect.isTrue(false); | |
| 66 } | |
| 67 | |
| 68 main() { | |
| 69 Expect.isTrue(fact(0) == 1); | |
| 70 Expect.isTrue(fact(1) == 1); | |
| 71 Expect.isTrue(fact(5) == 120); | |
| 72 Expect.isTrue(fact(42) == | |
| 73 1405006117752879898543142606244511569936384000000000); | |
| 74 Expect.isTrue(fact(3.14159) == 1.0874982674320444); | |
| 75 | |
| 76 Expect.isTrue(fib(0) == 0); | |
| 77 Expect.isTrue(fib(1) == 1); | |
| 78 Expect.isTrue(fib(2) == 1); | |
| 79 Expect.isTrue(fib(3) == 2); | |
| 80 Expect.isTrue(fib(4) == 3); | |
| 81 Expect.isTrue(fib(5) == 5); | |
| 82 Expect.isTrue(fib(6) == 8); | |
| 83 Expect.isTrue(fib(7) == 13); | |
| 84 Expect.isTrue(fib(42) == 267914296); | |
| 85 Expect.isTrue(fib(3.14159) == 3); | |
| 86 | |
| 87 test0(); | |
| 88 test1(); | |
| 89 test2(); | |
| 90 test3(); | |
| 91 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2451893004:
Revert "Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork."" (Closed)
