OLD | NEW |
1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium 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 BASE_RAND_UTIL_H_ | 5 #ifndef BASE_RAND_UTIL_H_ |
6 #define BASE_RAND_UTIL_H_ | 6 #define BASE_RAND_UTIL_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
| 9 #include "base/base_api.h" |
9 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
10 | 11 |
11 namespace base { | 12 namespace base { |
12 | 13 |
13 // Returns a random number in range [0, kuint64max]. Thread-safe. | 14 // Returns a random number in range [0, kuint64max]. Thread-safe. |
14 uint64 RandUint64(); | 15 BASE_API uint64 RandUint64(); |
15 | 16 |
16 // Returns a random number between min and max (inclusive). Thread-safe. | 17 // Returns a random number between min and max (inclusive). Thread-safe. |
17 int RandInt(int min, int max); | 18 BASE_API int RandInt(int min, int max); |
18 | 19 |
19 // Returns a random number in range [0, max). Thread-safe. | 20 // Returns a random number in range [0, max). Thread-safe. |
20 // | 21 // |
21 // Note that this can be used as an adapter for std::random_shuffle(): | 22 // Note that this can be used as an adapter for std::random_shuffle(): |
22 // Given a pre-populated |std::vector<int> myvector|, shuffle it as | 23 // Given a pre-populated |std::vector<int> myvector|, shuffle it as |
23 // std::random_shuffle(myvector.begin(), myvector.end(), base::RandGenerator); | 24 // std::random_shuffle(myvector.begin(), myvector.end(), base::RandGenerator); |
24 uint64 RandGenerator(uint64 max); | 25 BASE_API uint64 RandGenerator(uint64 max); |
25 | 26 |
26 // Returns a random double in range [0, 1). Thread-safe. | 27 // Returns a random double in range [0, 1). Thread-safe. |
27 double RandDouble(); | 28 BASE_API double RandDouble(); |
28 | 29 |
29 } // namespace base | 30 } // namespace base |
30 | 31 |
31 #endif // BASE_RAND_UTIL_H_ | 32 #endif // BASE_RAND_UTIL_H_ |
OLD | NEW |