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Random.h
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1 /* -*- c++ -*-
2  * Copyright (C) 2007-2015 Hypertable, Inc.
3  *
4  * This file is part of Hypertable.
5  *
6  * Hypertable is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 3
9  * of the License, or any later version.
10  *
11  * Hypertable is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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20  */
21 
26 #ifndef Common_Random_h
27 #define Common_Random_h
28 
29 #include <chrono>
30 
31 namespace Hypertable {
32 
35 
37  class Random {
38  public:
39 
42  static void seed(unsigned int s);
43 
46  static uint32_t number32(uint32_t maximum = 0);
47 
50  static int64_t number64(int64_t maximum = 0);
51 
54  static double uniform01();
55 
58  static std::chrono::milliseconds duration_millis(uint32_t maximum);
59 
60  };
61 
63 
64 }
65 
66 #endif // Common_Random_h
Convenience interface for random number and data generation.
Definition: Random.h:37
static uint32_t number32(uint32_t maximum=0)
Returns a random 32-bit unsigned integer.
Definition: Random.cc:55
static int64_t number64(int64_t maximum=0)
Returns a random 64-bit unsigned integer.
Definition: Random.cc:63
Hypertable definitions
static double uniform01()
Returns a random double.
Definition: Random.cc:72
static std::chrono::milliseconds duration_millis(uint32_t maximum)
Returns a random millisecond duration.
Definition: Random.cc:77
static void seed(unsigned int s)
Sets the seed of the random number generator.
Definition: Random.cc:50