test/is_same_dense.cpp

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2015 Gael Guennebaud <gael.guennebaud@inria.fr>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#include "main.h"

void test_is_same_dense()
{
  MatrixXd m1(10,10);
  Ref<MatrixXd> ref_m1(m1);
  Ref<const MatrixXd> const_ref_m1(m1);
  VERIFY(is_same_dense(m1,m1));
  VERIFY(is_same_dense(m1,ref_m1));
  VERIFY(is_same_dense(const_ref_m1,m1));
  VERIFY(is_same_dense(const_ref_m1,ref_m1));
  
  VERIFY(is_same_dense(m1.block(0,0,m1.rows(),m1.cols()),m1));
  VERIFY(!is_same_dense(m1.row(0),m1.col(0)));
  
  Ref<const MatrixXd> const_ref_m1_row(m1.row(1));
  VERIFY(!is_same_dense(m1.row(1),const_ref_m1_row));
  
  Ref<const MatrixXd> const_ref_m1_col(m1.col(1));
  VERIFY(is_same_dense(m1.col(1),const_ref_m1_col));
}