ViennaCL - The Vienna Computing Library  1.6.0
Free open-source GPU-accelerated linear algebra and solver library.
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Random.hpp
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1 /* =========================================================================
2  Copyright (c) 2010-2012, Institute for Microelectronics,
3  Institute for Analysis and Scientific Computing,
4  TU Wien.
5  Portions of this software are copyright by UChicago Argonne, LLC.
6 
7  -----------------
8  ViennaCL - The Vienna Computing Library
9  -----------------
10 
11  Project Head: Karl Rupp rupp@iue.tuwien.ac.at
12 
13  (A list of authors and contributors can be found in the PDF manual)
14 
15  License: MIT (X11), see file LICENSE in the base directory
16 ============================================================================= */
17 
18 #ifndef _RANDOM_HPP_
19 #define _RANDOM_HPP_
20 
21 #include <time.h>
22 #include <stdlib.h>
23 
24 inline void init()
25 {
26  static bool init = false;
27  if (!init)
28  {
29  srand( (unsigned int)time(NULL) );
30  init = true;
31  }
32 }
33 
34 template<class TYPE>
35 TYPE random();
36 
37 template<>
39 {
40  init();
41  return static_cast<double>(rand()) / static_cast<double>(RAND_MAX);
42 }
43 
44 template<>
46 {
47  init();
48  return static_cast<float>(random<double>());
49 }
50 
51 #endif
52 
float random< float >()
Definition: Random.hpp:46
double random< double >()
Definition: Random.hpp:39
void init()
Definition: Random.hpp:25
TYPE random()