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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_BIGNUM_H_ | 5 #ifndef V8_BIGNUM_H_ |
6 #define V8_BIGNUM_H_ | 6 #define V8_BIGNUM_H_ |
7 | 7 |
| 8 #include "src/vector.h" |
| 9 |
8 namespace v8 { | 10 namespace v8 { |
9 namespace internal { | 11 namespace internal { |
10 | 12 |
11 class Bignum { | 13 class Bignum { |
12 public: | 14 public: |
13 // 3584 = 128 * 28. We can represent 2^3584 > 10^1000 accurately. | 15 // 3584 = 128 * 28. We can represent 2^3584 > 10^1000 accurately. |
14 // This bignum can encode much bigger numbers, since it contains an | 16 // This bignum can encode much bigger numbers, since it contains an |
15 // exponent. | 17 // exponent. |
16 static const int kMaxSignificantBits = 3584; | 18 static const int kMaxSignificantBits = 3584; |
17 | 19 |
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109 int used_digits_; | 111 int used_digits_; |
110 // The Bignum's value equals value(bigits_) * 2^(exponent_ * kBigitSize). | 112 // The Bignum's value equals value(bigits_) * 2^(exponent_ * kBigitSize). |
111 int exponent_; | 113 int exponent_; |
112 | 114 |
113 DISALLOW_COPY_AND_ASSIGN(Bignum); | 115 DISALLOW_COPY_AND_ASSIGN(Bignum); |
114 }; | 116 }; |
115 | 117 |
116 } } // namespace v8::internal | 118 } } // namespace v8::internal |
117 | 119 |
118 #endif // V8_BIGNUM_H_ | 120 #endif // V8_BIGNUM_H_ |
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