source: pacpussensors/trunk/Vislab/lib3dv-1.2.0/lib3dv/eigen/test/swap.cpp

Last change on this file was 136, checked in by ldecherf, 8 years ago

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1// This file is part of Eigen, a lightweight C++ template library
2// for linear algebra.
3//
4// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
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#define EIGEN_NO_STATIC_ASSERT
11#include "main.h"
12
13template<typename T>
14struct other_matrix_type
15{
16 typedef int type;
17};
18
19template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols>
20struct other_matrix_type<Matrix<_Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols> >
21{
22 typedef Matrix<_Scalar, _Rows, _Cols, _Options^RowMajor, _MaxRows, _MaxCols> type;
23};
24
25template<typename MatrixType> void swap(const MatrixType& m)
26{
27 typedef typename other_matrix_type<MatrixType>::type OtherMatrixType;
28 typedef typename MatrixType::Scalar Scalar;
29
30 eigen_assert((!internal::is_same<MatrixType,OtherMatrixType>::value));
31 typename MatrixType::Index rows = m.rows();
32 typename MatrixType::Index cols = m.cols();
33
34 // construct 3 matrix guaranteed to be distinct
35 MatrixType m1 = MatrixType::Random(rows,cols);
36 MatrixType m2 = MatrixType::Random(rows,cols) + Scalar(100) * MatrixType::Identity(rows,cols);
37 OtherMatrixType m3 = OtherMatrixType::Random(rows,cols) + Scalar(200) * OtherMatrixType::Identity(rows,cols);
38
39 MatrixType m1_copy = m1;
40 MatrixType m2_copy = m2;
41 OtherMatrixType m3_copy = m3;
42
43 // test swapping 2 matrices of same type
44 m1.swap(m2);
45 VERIFY_IS_APPROX(m1,m2_copy);
46 VERIFY_IS_APPROX(m2,m1_copy);
47 m1 = m1_copy;
48 m2 = m2_copy;
49
50 // test swapping 2 matrices of different types
51 m1.swap(m3);
52 VERIFY_IS_APPROX(m1,m3_copy);
53 VERIFY_IS_APPROX(m3,m1_copy);
54 m1 = m1_copy;
55 m3 = m3_copy;
56
57 // test swapping matrix with expression
58 m1.swap(m2.block(0,0,rows,cols));
59 VERIFY_IS_APPROX(m1,m2_copy);
60 VERIFY_IS_APPROX(m2,m1_copy);
61 m1 = m1_copy;
62 m2 = m2_copy;
63
64 // test swapping two expressions of different types
65 m1.transpose().swap(m3.transpose());
66 VERIFY_IS_APPROX(m1,m3_copy);
67 VERIFY_IS_APPROX(m3,m1_copy);
68 m1 = m1_copy;
69 m3 = m3_copy;
70
71 // test assertion on mismatching size -- matrix case
72 VERIFY_RAISES_ASSERT(m1.swap(m1.row(0)));
73 // test assertion on mismatching size -- xpr case
74 VERIFY_RAISES_ASSERT(m1.row(0).swap(m1));
75}
76
77void test_swap()
78{
79 CALL_SUBTEST_1( swap(Matrix3f()) ); // fixed size, no vectorization
80 CALL_SUBTEST_2( swap(Matrix4d()) ); // fixed size, possible vectorization
81 CALL_SUBTEST_3( swap(MatrixXd(3,3)) ); // dyn size, no vectorization
82 CALL_SUBTEST_4( swap(MatrixXf(30,30)) ); // dyn size, possible vectorization
83}
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