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bug #1574: implement "sparse_matrix =,+=,-= diagonal_matrix" with smart insertion strategies of missing diagonal coeffs.

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This commit is contained in:
Gael Guennebaud
2019-01-28 17:29:50 +01:00
parent 803fa79767
commit f489f44519
4 changed files with 156 additions and 24 deletions
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24
test/sparse_basic.cpp
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@@ -546,7 +546,7 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
{
DenseVector d = DenseVector::Random(rows);
DenseMatrix refMat2 = d.asDiagonal();
SparseMatrixType m2(rows, rows);
SparseMatrixType m2;
m2 = d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
SparseMatrixType m3(d.asDiagonal());
@@ -554,6 +554,28 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
refMat2 += d.asDiagonal();
m2 += d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
m2.setZero(); m2 += d.asDiagonal();
refMat2.setZero(); refMat2 += d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
m2.setZero(); m2 -= d.asDiagonal();
refMat2.setZero(); refMat2 -= d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
initSparse<Scalar>(density, refMat2, m2);
m2.makeCompressed();
m2 += d.asDiagonal();
refMat2 += d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
initSparse<Scalar>(density, refMat2, m2);
m2.makeCompressed();
VectorXi res(rows);
for(Index i=0; i<rows; ++i)
res(i) = internal::random<int>(0,3);
m2.reserve(res);
m2 -= d.asDiagonal();
refMat2 -= d.asDiagonal();
VERIFY_IS_APPROX(m2, refMat2);
}
// test conservative resize