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

   1 // This file is part of Eigen, a lightweight C++ template library
   2 // for linear algebra.
   3 //
   4 // Copyright (C) 2009 Keir Mierle <mierle@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<DenseIndex rows, DenseIndex cols>
  13 void resizeLikeTest()
  14 {
  15   MatrixXf A(rows, cols);
  16   MatrixXf B;
  17   Matrix<double, rows, cols> C;
  18   B.resizeLike(A);
  19   C.resizeLike(B);  // Shouldn't crash.
  20   VERIFY(B.rows() == rows && B.cols() == cols);
  21
  22   VectorXf x(rows);
  23   RowVectorXf y;
  24   y.resizeLike(x);
  25   VERIFY(y.rows() == 1 && y.cols() == rows);
  26
  27   y.resize(cols);
  28   x.resizeLike(y);
  29   VERIFY(x.rows() == cols && x.cols() == 1);
  30 }
  31
  32 void resizeLikeTest12() { resizeLikeTest<1,2>(); }
  33 void resizeLikeTest1020() { resizeLikeTest<10,20>(); }
  34 void resizeLikeTest31() { resizeLikeTest<3,1>(); }
  35
  36 void test_resize()
  37 {
  38   CALL_SUBTEST(resizeLikeTest12() );
  39   CALL_SUBTEST(resizeLikeTest1020() );
  40   CALL_SUBTEST(resizeLikeTest31() );
  41 }