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Fix imag_ref for real scalar types and clean up svd_fill.h

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libeigen/eigen!2303

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
This commit is contained in:
Rasmus Munk Larsen
2026-03-15 19:56:01 -07:00
parent 929785924c
commit ea13a98dec
2 changed files with 45 additions and 14 deletions
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12
Eigen/src/Core/MathFunctions.h
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@@ -170,18 +170,24 @@ struct imag_ref_default_impl {
template <typename Scalar>
struct imag_ref_default_impl<Scalar, false> {
EIGEN_DEVICE_FUNC constexpr static Scalar run(Scalar&) { return Scalar(0); }
EIGEN_DEVICE_FUNC constexpr static const Scalar run(const Scalar&) { return Scalar(0); }
typedef typename NumTraits<Scalar>::Real RealScalar;
EIGEN_DEVICE_FUNC constexpr static inline RealScalar run(Scalar&) { return RealScalar(0); }
EIGEN_DEVICE_FUNC constexpr static inline RealScalar run(const Scalar&) { return RealScalar(0); }
};
template <typename Scalar>
struct imag_ref_impl : imag_ref_default_impl<Scalar, NumTraits<Scalar>::IsComplex> {};
template <typename Scalar>
template <typename Scalar, bool IsComplex = NumTraits<Scalar>::IsComplex>
struct imag_ref_retval {
typedef typename NumTraits<Scalar>::Real& type;
};
template <typename Scalar>
struct imag_ref_retval<Scalar, false> {
typedef typename NumTraits<Scalar>::Real type;
};
} // namespace internal
namespace numext {