bug #449: add SparseMatrix::conservativeResize feature
diff --git a/test/sparse_basic.cpp b/test/sparse_basic.cpp
index 8897a9d..7674514 100644
--- a/test/sparse_basic.cpp
+++ b/test/sparse_basic.cpp
@@ -379,6 +379,41 @@
initSparse<Scalar>(density, refMat2, m2);
VERIFY_IS_APPROX(m2.diagonal(), refMat2.diagonal().eval());
}
+
+ // test conservative resize
+ {
+ std::vector< std::pair<int,int> > inc;
+ inc.push_back(std::pair<int,int>(-3,-2));
+ inc.push_back(std::pair<int,int>(0,0));
+ inc.push_back(std::pair<int,int>(3,2));
+ inc.push_back(std::pair<int,int>(3,0));
+ inc.push_back(std::pair<int,int>(0,3));
+
+ for(size_t i = 0; i< inc.size(); i++) {
+ int incRows = inc[i].first;
+ int incCols = inc[i].second;
+ SparseMatrixType m1(rows, cols);
+ DenseMatrix refMat1 = DenseMatrix::Zero(rows, cols);
+ initSparse<Scalar>(density, refMat1, m1);
+
+ m1.conservativeResize(rows+incRows, cols+incCols);
+ refMat1.conservativeResize(rows+incRows, cols+incCols);
+ if (incRows > 0) refMat1.bottomRows(incRows).setZero();
+ if (incCols > 0) refMat1.rightCols(incCols).setZero();
+
+ VERIFY_IS_APPROX(m1, refMat1);
+
+ // Insert new values
+ if (incRows > 0)
+ m1.insert(refMat1.rows()-1, 0) = refMat1(refMat1.rows()-1, 0) = 1;
+ if (incCols > 0)
+ m1.insert(0, refMat1.cols()-1) = refMat1(0, refMat1.cols()-1) = 1;
+
+ VERIFY_IS_APPROX(m1, refMat1);
+
+
+ }
+ }
}
void test_sparse_basic()