In my library I copy the data for filling a compressed_matrix directly into the arrays value_data_, index1_data_ and index2_data. The copied data are formatted according to CSC and the compressed_matrix is column_major. The only problem is that the matrix does not get the informations about the change of the number of non-zero values, i.e. the private variables filled1_ and filled2_ are not updated.<div>

<br></div><div>I tested the attached file: I fill the three arrays, then I output the nnz number. It is 0. Then I use the debugger to change the variables filled1_ and filled2_. Now the matrix recognize the values and outputs correctly my matrix.</div>

<div><br></div><div>My question: is there a method to change those private variables without to call as many times as needed push_back or similar functions?</div><div><br></div><div>Best regards.</div><div>Andrea Arteaga</div>