void vector_add_matrix_col(vector *vec, pbqp_matrix *mat, unsigned col_index);
void vector_add_matrix_row(vector *vec, pbqp_matrix *mat, unsigned row_index);
void vector_add_matrix_col(vector *vec, pbqp_matrix *mat, unsigned col_index);
void vector_add_matrix_row(vector *vec, pbqp_matrix *mat, unsigned row_index);