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
replicate(const MatrixType & m)12 template<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
test_array_replicate()72 void 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