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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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