1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2011 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 #include "main.h"
11
zeroSizedMatrix()12 template<typename MatrixType> void zeroSizedMatrix()
13 {
14 MatrixType t1;
15
16 if (MatrixType::SizeAtCompileTime == Dynamic)
17 {
18 if (MatrixType::RowsAtCompileTime == Dynamic)
19 VERIFY(t1.rows() == 0);
20 if (MatrixType::ColsAtCompileTime == Dynamic)
21 VERIFY(t1.cols() == 0);
22
23 if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic)
24 {
25 MatrixType t2(0, 0);
26 VERIFY(t2.rows() == 0);
27 VERIFY(t2.cols() == 0);
28 }
29 }
30 }
31
zeroSizedVector()32 template<typename VectorType> void zeroSizedVector()
33 {
34 VectorType t1;
35
36 if (VectorType::SizeAtCompileTime == Dynamic)
37 {
38 VERIFY(t1.size() == 0);
39 VectorType t2(DenseIndex(0)); // DenseIndex disambiguates with 0-the-null-pointer (error with gcc 4.4 and MSVC8)
40 VERIFY(t2.size() == 0);
41 }
42 }
43
test_zerosized()44 void test_zerosized()
45 {
46 zeroSizedMatrix<Matrix2d>();
47 zeroSizedMatrix<Matrix3i>();
48 zeroSizedMatrix<Matrix<float, 2, Dynamic> >();
49 zeroSizedMatrix<MatrixXf>();
50 zeroSizedMatrix<Matrix<float, 0, 0> >();
51 zeroSizedMatrix<Matrix<float, Dynamic, 0, 0, 0, 0> >();
52 zeroSizedMatrix<Matrix<float, 0, Dynamic, 0, 0, 0> >();
53 zeroSizedMatrix<Matrix<float, Dynamic, Dynamic, 0, 0, 0> >();
54
55 zeroSizedVector<Vector2d>();
56 zeroSizedVector<Vector3i>();
57 zeroSizedVector<VectorXf>();
58 zeroSizedVector<Matrix<float, 0, 1> >();
59 }
60