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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_UTILS_RANDOM_NUMBER_GENERATOR_H_ | 5 #ifndef V8_UTILS_RANDOM_NUMBER_GENERATOR_H_ |
| 6 #define V8_UTILS_RANDOM_NUMBER_GENERATOR_H_ | 6 #define V8_UTILS_RANDOM_NUMBER_GENERATOR_H_ |
| 7 | 7 |
| 8 #include "globals.h" | 8 #include "src/globals.h" |
| 9 | 9 |
| 10 namespace v8 { | 10 namespace v8 { |
| 11 namespace internal { | 11 namespace internal { |
| 12 | 12 |
| 13 // ----------------------------------------------------------------------------- | 13 // ----------------------------------------------------------------------------- |
| 14 // RandomNumberGenerator | 14 // RandomNumberGenerator |
| 15 // | 15 // |
| 16 // This class is used to generate a stream of pseudorandom numbers. The class | 16 // This class is used to generate a stream of pseudorandom numbers. The class |
| 17 // uses a 48-bit seed, which is modified using a linear congruential formula. | 17 // uses a 48-bit seed, which is modified using a linear congruential formula. |
| 18 // (See Donald Knuth, The Art of Computer Programming, Volume 3, Section 3.2.1.) | 18 // (See Donald Knuth, The Art of Computer Programming, Volume 3, Section 3.2.1.) |
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| 78 | 78 |
| 79 int Next(int bits) V8_WARN_UNUSED_RESULT; | 79 int Next(int bits) V8_WARN_UNUSED_RESULT; |
| 80 void SetSeed(int64_t seed); | 80 void SetSeed(int64_t seed); |
| 81 | 81 |
| 82 int64_t seed_; | 82 int64_t seed_; |
| 83 }; | 83 }; |
| 84 | 84 |
| 85 } } // namespace v8::internal | 85 } } // namespace v8::internal |
| 86 | 86 |
| 87 #endif // V8_UTILS_RANDOM_NUMBER_GENERATOR_H_ | 87 #endif // V8_UTILS_RANDOM_NUMBER_GENERATOR_H_ |
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