devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Do not preallocate more space than the matrix size (when the sparse matrix boils down to a vector

Browse Source
This commit is contained in:
Gael Guennebaud
2017-07-20 10:13:48 +02:00
parent d580a90c9a
commit 1f4b24d2df
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Eigen/src/SparseCore/SparseAssign.h
View File

@@ -83,7 +83,7 @@ void assign_sparse_to_sparse(DstXprType &dst, const SrcXprType &src)
// eval without temporary
dst.resize(src.rows(), src.cols());
dst.setZero();
dst.reserve((std::max)(src.rows(),src.cols())*2);
dst.reserve((std::min)(src.rows()*src.cols(), (std::max)(src.rows(),src.cols())*2));
for (Index j=0; j<outerEvaluationSize; ++j)
{
dst.startVec(j);
@@ -107,7 +107,7 @@ void assign_sparse_to_sparse(DstXprType &dst, const SrcXprType &src)
DstXprType temp(src.rows(), src.cols());
temp.reserve((std::max)(src.rows(),src.cols())*2);
temp.reserve((std::min)(src.rows()*src.cols(), (std::max)(src.rows(),src.cols())*2));
for (Index j=0; j<outerEvaluationSize; ++j)
{
temp.startVec(j);