Function run_vector_tests

test/conservative_resize.cpp:61–111

template <typename Scalar>
void run_vector_tests()
{
  typedef Matrix<Scalar, 1, Eigen::Dynamic> VectorType;

  VectorType m, n;

  // boundary cases ...
  m = n = VectorType::Random(50);
  m.conservativeResize(1);
  VERIFY_IS_APPROX(m, n.segment(0,1));

  m = n = VectorType::Random(50);
  m.conservativeResize(50);
  VERIFY_IS_APPROX(m, n.segment(0,50));
  
  m = n = VectorType::Random(50);
  m.conservativeResize(m.rows(),1);
  VERIFY_IS_APPROX(m, n.segment(0,1));

  m = n = VectorType::Random(50);
  m.conservativeResize(m.rows(),50);
  VERIFY_IS_APPROX(m, n.segment(0,50));

  // random shrinking ...
  for (int i=0; i<50; ++i)
  {
    const int size = internal::random<int>(1,50);
    m = n = VectorType::Random(50);
    m.conservativeResize(size);
    VERIFY_IS_APPROX(m, n.segment(0,size));
    
    m = n = VectorType::Random(50);
    m.conservativeResize(m.rows(), size);
    VERIFY_IS_APPROX(m, n.segment(0,size));
  }

  // random growing with zeroing ...
  for (int i=0; i<50; ++i)
  {
    const int size = internal::random<int>(50,100);
    m = n = VectorType::Random(50);
    m.conservativeResizeLike(VectorType::Zero(size));
    VERIFY_IS_APPROX(m.segment(0,50), n);
    VERIFY( size<=50 || m.segment(50,size-50).sum() == Scalar(0) );
    
    m = n = VectorType::Random(50);
    m.conservativeResizeLike(Matrix<Scalar,Dynamic,Dynamic>::Zero(1,size));
    VERIFY_IS_APPROX(m.segment(0,50), n);
    VERIFY( size<=50 || m.segment(50,size-50).sum() == Scalar(0) );
  }
}

void test_conservative_resize()
{