1// This file is part of Eigen, a lightweight C++ template library
2// for linear algebra.
3//
4// Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr>
5//
6// This Source Code Form is subject to the terms of the Mozilla
7// Public License v. 2.0. If a copy of the MPL was not distributed
8// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9
10#include "main.h"
11
12template<typename MatrixType> void replicate(const MatrixType& m)
13{
14  /* this test covers the following files:
15     Replicate.cpp
16  */
17  typedef typename MatrixType::Index Index;
18  typedef typename MatrixType::Scalar Scalar;
19  typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
20  typedef Matrix<Scalar, Dynamic, Dynamic> MatrixX;
21  typedef Matrix<Scalar, Dynamic, 1> VectorX;
22
23  Index rows = m.rows();
24  Index cols = m.cols();
25
26  MatrixType m1 = MatrixType::Random(rows, cols),
27             m2 = MatrixType::Random(rows, cols);
28
29  VectorType v1 = VectorType::Random(rows);
30
31  MatrixX x1, x2;
32  VectorX vx1;
33
34  int  f1 = internal::random<int>(1,10),
35       f2 = internal::random<int>(1,10);
36
37  x1.resize(rows*f1,cols*f2);
38  for(int j=0; j<f2; j++)
39  for(int i=0; i<f1; i++)
40    x1.block(i*rows,j*cols,rows,cols) = m1;
41  VERIFY_IS_APPROX(x1, m1.replicate(f1,f2));
42
43  x2.resize(2*rows,3*cols);
44  x2 << m2, m2, m2,
45        m2, m2, m2;
46  VERIFY_IS_APPROX(x2, (m2.template replicate<2,3>()));
47
48  x2.resize(rows,3*cols);
49  x2 << m2, m2, m2;
50  VERIFY_IS_APPROX(x2, (m2.template replicate<1,3>()));
51
52  vx1.resize(3*rows,cols);
53  vx1 << m2, m2, m2;
54  VERIFY_IS_APPROX(vx1+vx1, vx1+(m2.template replicate<3,1>()));
55
56  vx1=m2+(m2.colwise().replicate(1));
57
58  if(m2.cols()==1)
59    VERIFY_IS_APPROX(m2.coeff(0), (m2.template replicate<3,1>().coeff(m2.rows())));
60
61  x2.resize(rows,f1);
62  for (int j=0; j<f1; ++j)
63    x2.col(j) = v1;
64  VERIFY_IS_APPROX(x2, v1.rowwise().replicate(f1));
65
66  vx1.resize(rows*f2);
67  for (int j=0; j<f2; ++j)
68    vx1.segment(j*rows,rows) = v1;
69  VERIFY_IS_APPROX(vx1, v1.colwise().replicate(f2));
70}
71
72void test_array_replicate()
73{
74  for(int i = 0; i < g_repeat; i++) {
75    CALL_SUBTEST_1( replicate(Matrix<float, 1, 1>()) );
76    CALL_SUBTEST_2( replicate(Vector2f()) );
77    CALL_SUBTEST_3( replicate(Vector3d()) );
78    CALL_SUBTEST_4( replicate(Vector4f()) );
79    CALL_SUBTEST_5( replicate(VectorXf(16)) );
80    CALL_SUBTEST_6( replicate(VectorXcd(10)) );
81  }
82}
83