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Fix SparseVector::insert(Index) assigning int to Scalar

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Scalar doesn't necessarily support implicit construction from int or
assignment from int.

Here's the error message I got without this fix:
```
/home/tav/git/Sleipnir/build/_deps/eigen3-src/Eigen/src/SparseCore/SparseVector.h:180:25: error: no match for ‘operator=’ (operand types are ‘Eigen::internal::CompressedStorage<ExplicitDouble, int>::Scalar’ {aka ‘ExplicitDouble’} and ‘int’)
  180 |     m_data.value(p + 1) = 0;
      |     ~~~~~~~~~~~~~~~~~~~~^~~
```

See merge request libeigen/eigen!2046


(cherry picked from commit 9234883914)

48d2b101 Fix SparseVector::insert(Index) assigning int to Scalar

Co-authored-by: Tyler Veness <calcmogul@gmail.com>
This commit is contained in:
Antonio Sánchez
2025-11-05 21:24:44 +00:00
parent 284dcc122b
commit 748962722c
1 changed files with 1 additions and 1 deletions
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2
Eigen/src/SparseCore/SparseVector.h
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@@ -177,7 +177,7 @@ class SparseVector : public SparseCompressedBase<SparseVector<Scalar_, Options_,
--p;
}
m_data.index(p + 1) = convert_index(i);
m_data.value(p + 1) = 0;
m_data.value(p + 1) = Scalar(0);
return m_data.value(p + 1);
}