1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// This file is part of Eigen, a lightweight C++ template library
// for linear algebra. Eigen itself is part of the KDE project.
//
// Copyright (C) 2006-2007 Benoit Jacob <jacob@math.jussieu.fr>
//
// Eigen is free software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the Free Software
// Foundation; either version 2 or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
// details.
//
// You should have received a copy of the GNU General Public License along
// with Eigen; if not, write to the Free Software Foundation, Inc., 51
// Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. This exception does not invalidate any other reasons why a work
// based on this file might be covered by the GNU General Public License.
#ifndef EIGEN_RANDOM_H
#define EIGEN_RANDOM_H
template<typename MatrixType> class Random : NoOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, Random<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
friend class MatrixBase<Scalar, Random<MatrixType> >;
Random(int rows, int cols) : m_rows(rows), m_cols(cols)
{
assert(rows > 0 && cols > 0);
}
private:
static const int _RowsAtCompileTime = MatrixType::RowsAtCompileTime,
_ColsAtCompileTime = MatrixType::ColsAtCompileTime;
const Random& _ref() const { return *this; }
int _rows() const { return m_rows; }
int _cols() const { return m_cols; }
Scalar _coeff(int, int) const
{
return random<Scalar>();
}
protected:
int m_rows, m_cols;
};
template<typename Scalar, typename Derived>
const Eval<Random<Derived> > MatrixBase<Scalar, Derived>::random(int rows, int cols)
{
return Random<Derived>(rows, cols).eval();
}
template<typename Scalar, typename Derived>
const Eval<Random<Derived> > MatrixBase<Scalar, Derived>::random(int size)
{
assert(IsVectorAtCompileTime);
if(RowsAtCompileTime == 1) return Random<Derived>(1, size).eval();
else return Random<Derived>(size, 1).eval();
}
template<typename Scalar, typename Derived>
const Eval<Random<Derived> > MatrixBase<Scalar, Derived>::random()
{
return Random<Derived>(RowsAtCompileTime, ColsAtCompileTime).eval();
}
#endif // EIGEN_RANDOM_H
|
