permlib 0.2.9
Library for permutation computations
Loading...
Searching...
No Matches
bsgs_random_generator.h
1// ---------------------------------------------------------------------------
2//
3// This file is part of PermLib.
4//
5// Copyright (c) 2009-2011 Thomas Rehn <thomas@carmen76.de>
6// All rights reserved.
7//
8// Redistribution and use in source and binary forms, with or without
9// modification, are permitted provided that the following conditions
10// are met:
11// 1. Redistributions of source code must retain the above copyright
12// notice, this list of conditions and the following disclaimer.
13// 2. Redistributions in binary form must reproduce the above copyright
14// notice, this list of conditions and the following disclaimer in the
15// documentation and/or other materials provided with the distribution.
16// 3. The name of the author may not be used to endorse or promote products
17// derived from this software without specific prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29//
30// ---------------------------------------------------------------------------
31
32
33#ifndef BSGSRANDOMGENERATOR_H
34#define BSGSRANDOMGENERATOR_H
35
36#include <permlib/generator/random_generator.h>
37#include <permlib/bsgs.h>
38
39namespace permlib {
40
42template <class PERM, class TRANS>
44public:
46 BSGSRandomGenerator(const BSGS<PERM,TRANS> &bsgs) : m_bsgs(bsgs) {}
47
48 virtual PERM next() { return m_bsgs.random(); }
49private:
50 const BSGS<PERM,TRANS> &m_bsgs;
51};
52
53}
54
55#endif // -- BSGSRANDOMGENERATOR_H
generates uniformly distributed random group elements based on an existing BSGS
Definition bsgs_random_generator.h:43
BSGSRandomGenerator(const BSGS< PERM, TRANS > &bsgs)
initializes class with existing BSGS
Definition bsgs_random_generator.h:46
virtual PERM next()
generates an element
Definition bsgs_random_generator.h:48
abstract base class for random group element generators
Definition random_generator.h:42
Represents a base and strong generating set (BSGS)
Definition redundant_base_point_insertion_strategy.h:39