216     Index n0 = internal::random<Index>(1,rows-(std::max)(j0,j1));  in sparse_basic()  local
218       VERIFY_IS_APPROX(m2.innerVectors(j0,n0), refMat2.block(j0,0,n0,cols));  in sparse_basic()
220       VERIFY_IS_APPROX(m2.innerVectors(j0,n0), refMat2.block(0,j0,rows,n0));  in sparse_basic()
222       VERIFY_IS_APPROX(m2.innerVectors(j0,n0)+m2.innerVectors(j1,n0),  in sparse_basic()
223                        refMat2.middleRows(j0,n0)+refMat2.middleRows(j1,n0));  in sparse_basic()
225       VERIFY_IS_APPROX(m2.innerVectors(j0,n0)+m2.innerVectors(j1,n0),  in sparse_basic()
226                       refMat2.block(0,j0,rows,n0)+refMat2.block(0,j1,rows,n0));  in sparse_basic()
230     m2.innerVectors(j0,n0) = m2.innerVectors(j0,n0) + m2.innerVectors(j1,n0);  in sparse_basic()
232       refMat2.middleRows(j0,n0) = (refMat2.middleRows(j0,n0) + refMat2.middleRows(j1,n0)).eval();  in sparse_basic()
234       refMat2.middleCols(j0,n0) = (refMat2.middleCols(j0,n0) + refMat2.middleCols(j1,n0)).eval();  in sparse_basic()
306     Index n0 = internal::random<Index>(1,rows-(std::max)(j0,j1));  in sparse_basic()  local
308       VERIFY_IS_APPROX(m2.block(j0,0,n0,cols), refMat2.block(j0,0,n0,cols));  in sparse_basic()
310       VERIFY_IS_APPROX(m2.block(0,j0,rows,n0), refMat2.block(0,j0,rows,n0));  in sparse_basic()
313       VERIFY_IS_APPROX(m2.block(j0,0,n0,cols)+m2.block(j1,0,n0,cols),  in sparse_basic()
314                       refMat2.block(j0,0,n0,cols)+refMat2.block(j1,0,n0,cols));  in sparse_basic()
316       VERIFY_IS_APPROX(m2.block(0,j0,rows,n0)+m2.block(0,j1,rows,n0),  in sparse_basic()
317                       refMat2.block(0,j0,rows,n0)+refMat2.block(0,j1,rows,n0));  in sparse_basic()