Function compare_using_data_and_stride

test/block.cpp:201–232

template<typename MatrixType>
void compare_using_data_and_stride(const MatrixType& m)
{
  typedef typename MatrixType::Index Index;
  Index rows = m.rows();
  Index cols = m.cols();
  Index size = m.size();
  Index innerStride = m.innerStride();
  Index outerStride = m.outerStride();
  Index rowStride = m.rowStride();
  Index colStride = m.colStride();
  const typename MatrixType::Scalar* data = m.data();

  for(int j=0;j<cols;++j)
    for(int i=0;i<rows;++i)
      VERIFY(m.coeff(i,j) == data[i*rowStride + j*colStride]);

  if(!MatrixType::IsVectorAtCompileTime)
  {
    for(int j=0;j<cols;++j)
      for(int i=0;i<rows;++i)
        VERIFY(m.coeff(i,j) == data[(MatrixType::Flags&RowMajorBit)
                                     ? i*outerStride + j*innerStride
                                     : j*outerStride + i*innerStride]);
  }

  if(MatrixType::IsVectorAtCompileTime)
  {
    VERIFY(innerStride == int((&m.coeff(1))-(&m.coeff(0))));
    for (int i=0;i<size;++i)
      VERIFY(m.coeff(i) == data[i*innerStride]);
  }
}

template<typename MatrixType>
void data_and_stride(const MatrixType& m)