miscmatrices.cpp revision c981c48f5bc9aefeffc0bcb0cc3934c2fae179dd 
1// This file is part of Eigen, a lightweight C++ template library
2// for linear algebra.
3//
4// Copyright (C) 2006-2008 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
12template<typename MatrixType> void miscMatrices(const MatrixType& m)
13{
14  /* this test covers the following files:
15     DiagonalMatrix.h Ones.h
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, 1, MatrixType::ColsAtCompileTime> RowVectorType;
21  Index rows = m.rows();
22  Index cols = m.cols();
23
24  Index r = internal::random<Index>(0, rows-1), r2 = internal::random<Index>(0, rows-1), c = internal::random<Index>(0, cols-1);
25  VERIFY_IS_APPROX(MatrixType::Ones(rows,cols)(r,c), static_cast<Scalar>(1));
26  MatrixType m1 = MatrixType::Ones(rows,cols);
27  VERIFY_IS_APPROX(m1(r,c), static_cast<Scalar>(1));
28  VectorType v1 = VectorType::Random(rows);
29  v1[0];
30  Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime>
31  square(v1.asDiagonal());
32  if(r==r2) VERIFY_IS_APPROX(square(r,r2), v1[r]);
33  else VERIFY_IS_MUCH_SMALLER_THAN(square(r,r2), static_cast<Scalar>(1));
34  square = MatrixType::Zero(rows, rows);
35  square.diagonal() = VectorType::Ones(rows);
36  VERIFY_IS_APPROX(square, MatrixType::Identity(rows, rows));
37}
38
39void test_miscmatrices()
40{
41  for(int i = 0; i < g_repeat; i++) {
42    CALL_SUBTEST_1( miscMatrices(Matrix<float, 1, 1>()) );
43    CALL_SUBTEST_2( miscMatrices(Matrix4d()) );
44    CALL_SUBTEST_3( miscMatrices(MatrixXcf(3, 3)) );
45    CALL_SUBTEST_4( miscMatrices(MatrixXi(8, 12)) );
46    CALL_SUBTEST_5( miscMatrices(MatrixXcd(20, 20)) );
47  }
48}
49