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bug #449: add SparseMatrix::conservativeResize feature

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This commit is contained in:
Benjamin Piwowarski
2012-07-19 00:07:06 +02:00
parent 3f08a6a126
commit 6bf49ceac2
2 changed files with 109 additions and 11 deletions
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35
test/sparse_basic.cpp
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@@ -379,6 +379,41 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
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()