ground/gcs/src/libs/eigen/test/miscmatrices.cpp

   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
  12 template<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   Index rows = m.rows();
  21   Index cols = m.cols();
  22
  23   Index r = internal::random<Index>(0, rows-1), r2 = internal::random<Index>(0, rows-1), c = internal::random<Index>(0, cols-1);
  24   VERIFY_IS_APPROX(MatrixType::Ones(rows,cols)(r,c), static_cast<Scalar>(1));
  25   MatrixType m1 = MatrixType::Ones(rows,cols);
  26   VERIFY_IS_APPROX(m1(r,c), static_cast<Scalar>(1));
  27   VectorType v1 = VectorType::Random(rows);
  28   v1[0];
  29   Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime>
  30   square(v1.asDiagonal());
  31   if(r==r2) VERIFY_IS_APPROX(square(r,r2), v1[r]);
  32   else VERIFY_IS_MUCH_SMALLER_THAN(square(r,r2), static_cast<Scalar>(1));
  33   square = MatrixType::Zero(rows, rows);
  34   square.diagonal() = VectorType::Ones(rows);
  35   VERIFY_IS_APPROX(square, MatrixType::Identity(rows, rows));
  36 }
  37
  38 void test_miscmatrices()
  39 {
  40   for(int i = 0; i < g_repeat; i++) {
  41     CALL_SUBTEST_1( miscMatrices(Matrix<float, 1, 1>()) );
  42     CALL_SUBTEST_2( miscMatrices(Matrix4d()) );
  43     CALL_SUBTEST_3( miscMatrices(MatrixXcf(3, 3)) );
  44     CALL_SUBTEST_4( miscMatrices(MatrixXi(8, 12)) );
  45     CALL_SUBTEST_5( miscMatrices(MatrixXcd(20, 20)) );
  46   }
  47 }