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author | Gael Guennebaud <g.gael@free.fr> | 2018-12-08 00:13:37 +0100 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2018-12-08 00:13:37 +0100 |
commit | cd25b538abff7370100ef5613b8138919f89c7b0 (patch) | |
tree | 77d855f19590ba063af024669e896a8236508ac2 /test/sparse_basic.cpp | |
parent | efaf03bf96bdde4fc48ca7aacb1043bb5ae09b74 (diff) |
Fix noise in sparse_basic_3 (numerical cancellation)
Diffstat (limited to 'test/sparse_basic.cpp')
-rw-r--r-- | test/sparse_basic.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/test/sparse_basic.cpp b/test/sparse_basic.cpp index 30d3f1bba..30bba3f07 100644 --- a/test/sparse_basic.cpp +++ b/test/sparse_basic.cpp @@ -658,7 +658,8 @@ void big_sparse_triplet(Index rows, Index cols, double density) { { Index r = internal::random<Index>(0,rows-1); Index c = internal::random<Index>(0,cols-1); - Scalar v = internal::random<Scalar>(); + // use positive values to prevent numerical cancellation errors in sum + Scalar v = numext::abs(internal::random<Scalar>()); triplets.push_back(TripletType(r,c,v)); sum += v; } |