Hi,

In the following code fragment:

Code: Select all

for(SparseMatrix<RowMajor>::InnerIterator it(A, k); it; ++it) {
...            
}


does Eigen always guarantee that nonzero coefficients in row k of A will be visited in order of increasing column index?

Thanks for the help.

yes, unless you bypass the high-level matrix assembly routine and explicitly insert elements unordered (e.g., A.insertUnsorted(i,j)).