The Tor Browser / file comparison
comparison: js/src/jsapi-tests/testToIntWidth.cpp
js/src/jsapi-tests/testToIntWidth.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:ff37b09fca4e |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #include <math.h> | |
| 9 | |
| 10 #include "jsapi-tests/tests.h" | |
| 11 #include "vm/NumericConversions.h" | |
| 12 | |
| 13 using js::detail::ToIntWidth; | |
| 14 using js::detail::ToUintWidth; | |
| 15 | |
| 16 BEGIN_TEST(testToUint8TwiceUint8Range) | |
| 17 { | |
| 18 double d = -256; | |
| 19 uint8_t expected = 0; | |
| 20 do { | |
| 21 CHECK(ToUintWidth<uint8_t>(d) == expected); | |
| 22 | |
| 23 d++; | |
| 24 expected++; | |
| 25 } while (d <= 256); | |
| 26 return true; | |
| 27 } | |
| 28 END_TEST(testToUint8TwiceUint8Range) | |
| 29 | |
| 30 BEGIN_TEST(testToInt8) | |
| 31 { | |
| 32 double d = -128; | |
| 33 int8_t expected = -128; | |
| 34 do { | |
| 35 CHECK(ToIntWidth<int8_t>(d) == expected); | |
| 36 | |
| 37 d++; | |
| 38 expected++; | |
| 39 } while (expected < 127); | |
| 40 return true; | |
| 41 } | |
| 42 END_TEST(testToInt8) | |
| 43 | |
| 44 BEGIN_TEST(testToUint32Large) | |
| 45 { | |
| 46 CHECK(ToUintWidth<uint32_t>(pow(2.0, 83)) == 0); | |
| 47 CHECK(ToUintWidth<uint32_t>(pow(2.0, 83) + pow(2.0, 31)) == (1U << 31)); | |
| 48 CHECK(ToUintWidth<uint32_t>(pow(2.0, 83) + 2 * pow(2.0, 31)) == 0); | |
| 49 CHECK(ToUintWidth<uint32_t>(pow(2.0, 83) + 3 * pow(2.0, 31)) == (1U << 31)); | |
| 50 CHECK(ToUintWidth<uint32_t>(pow(2.0, 84)) == 0); | |
| 51 CHECK(ToUintWidth<uint32_t>(pow(2.0, 84) + pow(2.0, 31)) == 0); | |
| 52 CHECK(ToUintWidth<uint32_t>(pow(2.0, 84) + pow(2.0, 32)) == 0); | |
| 53 return true; | |
| 54 } | |
| 55 END_TEST(testToUint32Large) | |
| 56 | |
| 57 BEGIN_TEST(testToUint64Large) | |
| 58 { | |
| 59 CHECK(ToUintWidth<uint64_t>(pow(2.0, 115)) == 0); | |
| 60 CHECK(ToUintWidth<uint64_t>(pow(2.0, 115) + pow(2.0, 63)) == (1ULL << 63)); | |
| 61 CHECK(ToUintWidth<uint64_t>(pow(2.0, 115) + 2 * pow(2.0, 63)) == 0); | |
| 62 CHECK(ToUintWidth<uint64_t>(pow(2.0, 115) + 3 * pow(2.0, 63)) == (1ULL << 63)); | |
| 63 CHECK(ToUintWidth<uint64_t>(pow(2.0, 116)) == 0); | |
| 64 CHECK(ToUintWidth<uint64_t>(pow(2.0, 116) + pow(2.0, 63)) == 0); | |
| 65 CHECK(ToUintWidth<uint64_t>(pow(2.0, 116) + pow(2.0, 64)) == 0); | |
| 66 return true; | |
| 67 } | |
| 68 END_TEST(testToUint64Large) |
