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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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39 #include <float.h> | 39 #include <float.h> |
40 | 40 |
41 namespace WebCore { | 41 namespace WebCore { |
42 | 42 |
43 namespace DecimalPrivate { | 43 namespace DecimalPrivate { |
44 | 44 |
45 static int const ExponentMax = 1023; | 45 static int const ExponentMax = 1023; |
46 static int const ExponentMin = -1023; | 46 static int const ExponentMin = -1023; |
47 static int const Precision = 18; | 47 static int const Precision = 18; |
48 | 48 |
49 static const uint64_t MaxCoefficient = UINT64_C(0x16345785D89FFFF); // 999999999
999999999 == 18 9's | 49 static const uint64_t MaxCoefficient = UINT64_C(0xDE0B6B3A763FFFF); // 999999999
999999999 == 18 9's |
50 | 50 |
51 // This class handles Decimal special values. | 51 // This class handles Decimal special values. |
52 class SpecialValueHandler { | 52 class SpecialValueHandler { |
53 WTF_MAKE_NONCOPYABLE(SpecialValueHandler); | 53 WTF_MAKE_NONCOPYABLE(SpecialValueHandler); |
54 public: | 54 public: |
55 enum HandleResult { | 55 enum HandleResult { |
56 BothFinite, | 56 BothFinite, |
57 BothInfinity, | 57 BothInfinity, |
58 EitherNaN, | 58 EitherNaN, |
59 LHSIsInfinity, | 59 LHSIsInfinity, |
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1017 } | 1017 } |
1018 return builder.toString(); | 1018 return builder.toString(); |
1019 } | 1019 } |
1020 | 1020 |
1021 Decimal Decimal::zero(Sign sign) | 1021 Decimal Decimal::zero(Sign sign) |
1022 { | 1022 { |
1023 return Decimal(EncodedData(sign, EncodedData::ClassZero)); | 1023 return Decimal(EncodedData(sign, EncodedData::ClassZero)); |
1024 } | 1024 } |
1025 | 1025 |
1026 } // namespace WebCore | 1026 } // namespace WebCore |
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